Universal Atomic 4 – Inboard petrol engine
Photo: NSEasternShoreChemist, CC BY-SA 4.0, via Wikimedia Commons (cropped)

Universal · Inboard petrol engine

Universal Atomic 4

The Universal Atomic 4 is a 30 hp four-cylinder side-valve petrol inboard (64.46 cu in, 1.06 l) with a built-in reversing gear, built from the late 1940s to 1984 as direct drive (UJ), 2:1 reduction (UJR) or V-drive (UJVD). Universal advertised it as powering more than 40,000 sailboats, and Moyer Marine’s pages mention it in boats such as the Catalina 30, Ericson 35, C&C 27, Columbia 30 and Tartan yachts. Early and late models differ in the distributor (Prestolite, later Delco) and the thermostat (Dole on the manifold, later Holley on the head), and Westerbeke replaced the original pair of stacked head gaskets with a single graphite gasket. The engine is raw-water cooled as standard; Universal offered fresh-water cooling and Moyer sells conversion kits. Westerbeke owns the Universal name and still publishes the parts list and manuals, although many pages are stamped “not available”; the specialist for parts, rebuilt engines and new blocks is Moyer Marine.

Manuals & documents

The links go straight to Universal. We host no manuals or drawings — the manufacturer’s copy is the current one.

Wear parts & part numbers

PartOEM numberAlso fitsNote
Raw water pump impellerCSOB_02_631,2,3,4—Moyer Marine number (Westerbeke lists no impeller for the Oberdorfer pump); one source (Moyer). Early or late engine: what counts is the pump. Fits Oberdorfer 202M7, N202M7 and 201(M) pumps, which Universal fitted from about serial 174340 (late models), and Moyer’s MMI 501/502 pumps, so it serves raw-water cooled engines and the sea-water pump of Moyer’s fresh-water cooling kits. Jabsco 17120-0001 pumps take impeller 4528-0001 (next row). Change the back-plate gasket at the same time.
Raw water pump impeller4528-00015,6—Jabsco number, only for the Jabsco 17120-0001 bronze flange pump, which Jabsco lists for the Universal Atomic Four (one of the three impeller-pump makes on the engine, says Moyer); early or late engine with this pump, raw-water side. Same data sheet: end-cover gasket 9156-0010 (0.010 in thick), cam 4538-0000, service kit 90178-0001.
Pump cover gasketGASK_26_677,8,9,10—Moyer number, one source (Moyer). Back-plate gasket for the engine-mounted Oberdorfer 202M7 pump of late raw-water cooled engines. Early-model pumps: GASK_24_163; Oberdorfer 201M pedestal pump: CSOB_06_192; newer Oberdorfer pumps with a flat back plate seal with O-ring CSOB_06_518.
Raw water pumpCSOB_00_3652,3,5Jabsco 17120-00015,2Moyer MMI 502 flange pump, Moyer number; its fit rests on one source (Moyer). Direct replacement for the Oberdorfer N202M-07 and N202M-03, Sherwood T-11165 and Jabsco 17120-0001 flange pumps and interchangeable with the early gear-type pumps, so for early and late raw-water cooled engines: 3/8 in NPT ports, flange gasket included, sealed bearings, no grease cup. The MMI 501 pedestal pump (CSOB_00.1_501) replaces Sherwood R-30-G, Jabsco 1673 and Oberdorfer 201M pumps and is the sea-water pump of Moyer’s fresh-water cooling kits. Jabsco lists its 17120-0001 for the Atomic Four in its own data sheet.
Water pump repair kitCSOB_09_7011,12,13,5—Moyer number, one source (Moyer). Kit for the Oberdorfer 202M7 pump of late raw-water cooled engines: impeller, shaft, seals, snap ring, back-plate gasket, M7 cam shoe and back-plate O-ring (no grease cup). Moyer pumps: CSOB_00_461 (MMI 502 flange pump) and CSOB_00.1_519 (MMI 501 pedestal pump, also in fresh-water cooling kits). Jabsco 17120-0001: Jabsco service kit 90178-0001.
Thermostat26227815,14Moyer Marine CSTH_58914Late models (serial 79476 on, housing on the cylinder head), raw-water cooled: Holley thermostat, 145 °F. Westerbeke kit 200206 = thermostat 262278 + housing gasket 261601. Moyer’s double-acting brass thermostat CSTH_589 opens at 150 °F, comes with a gasket and is made for the late-model bypass system.
Thermostat26126915,16,17Moyer Marine CSTH_05_60.316Early models (before serial 79476) with the Dole thermostat on the manifold: 140 °F flange-mount assembly for raw-water cooling (the parts list has a 160 °F version for fresh-water cooling, without a number). Element alone 275965; kit 200207 = element 275965 + outlet-housing gasket 261144. Moyer also sells an early-model Dole housing (CSTH_04_173).
Thermostat20046818—Fresh-water cooled engines only (Service Bulletin 227 does not split early and late models): Westerbeke kit with a 180 °F thermostat and housing gasket. Westerbeke warns that it harms raw-water cooled engines and needs a cooling system free of scale.
Thermostat gasket26160115,19,20,21—Late models (housing on the head), raw-water cooled; the fresh-water kit 200468 brings its own gasket. Early Dole outlet-housing gasket: 261144. Moyer sells a thermostat housing gasket GASK_05_144 and an early-model Dole housing gasket GASK_23_162, and seals only the lower face of the late gasket so the housing comes off easily later.
Cylinder head gasket20045215,23,22replaces 263776Moyer Marine GASK_03_14222Same head gasket on early and late models, any cooling. Universal stacked two gaskets 263776; Westerbeke replaced them with ONE graphite gasket 200452 (Service Bulletin 223): fit it dry, torque cold to 35 ft-lb in two stages, no retorque. Moyer sells steel-reinforced graphite head gaskets as a set of two (GASK_03_142).
Gasket set28560815,24,21Moyer Marine GASK_01_14024Universal overhaul set for early and late models, any cooling: 23 gaskets incl. two head gaskets 263776 (single-gasket fitting: see 200452). Upper “valve grind” set: 285517. Moyer’s complete set GASK_01_140 fits late and early engines but has no carburettor bowl gasket and no 2:1 reduction-gear gasket.
Valve cover gasket26103915,25,21Moyer Marine GASK_09_14825Early and late models (same number), any cooling. Late covers are steel plate: coat the gasket on both sides; early cast covers: cover side only (Moyer).
Exhaust manifold gasket26105015,26Moyer Marine GASK_08_14726Gasket between the combined intake/exhaust manifold and the block; early and late models, any cooling.
Exhaust flange gasket26045915,27—Sits under the 1-1/4 in NPT exhaust outlet flange (flange 260458); early and late models, any cooling. Moyer’s exhaust flange EXHT_04_127 comes with stainless bolts and gasket and has a 1/8 in NPT port for a back-pressure gauge; Moyer suggests 20 ft-lb.
Exhaust manifold25962415,28Moyer Marine OVCM_02.0_30328Combined intake and exhaust manifold for UJ and UJR engines after serial 79476 (late models), any cooling; the earlier 261002 is no longer available. Moyer’s aftermarket manifold OVCM_02.0_303 is double-ended (V-drive and transom exhaust layouts) and also fits early engines with a flexible cross-over tube; gasket not included.
Carburettor28848215,29,30Moyer Marine FCAR_64029Late aluminium carburettor fitted after 1969 (from serial 170509; Westerbeke lists it as Bendix 13355), any cooling. Moyer’s new 5-bolt carburettor FCAR_640 replaces the Zenith type 68 (4- and 5-bolt) on all late engines; early engines need the adapter parts FCAR_13.2_166, FCAR_13_60.0 and FCAR_08_59.
Carburettor repair kit29062915,31Moyer Marine FCAR_64331Late models: for carburettor 288482 (after 1969), any cooling; gasket set alone: 294379. Moyer’s service and cleaning kit FCAR_643 (needle and seat, float pin, gaskets, fibre washers, brushes) is for the late Zenith type 68, 4- or 5-bolt.
Carburettor repair kit29024115—Early models: for the cast-iron Zenith 10621 carburettor 261093 used up to 1969, any cooling; gasket set alone: 287293.
Contact points26228315,32Moyer Marine IGEM_01_3832Breaker points, early models with the Prestolite/Auto-Lite distributor (1948 to 1969), any cooling. Gap 0.018 to 0.020 in.
Contact points28870115,33Moyer Marine IGLM_01_2733Breaker points, late models with the Delco distributor (1969 on), any cooling. Gap 0.025 in.
Capacitor26228215,34Moyer Marine IGEM_02_3934Ignition condenser, early models with the Prestolite distributor (condenser mounted outside the housing), any cooling.
Capacitor28870015,35Moyer Marine IGLM_02_2835Ignition condenser, late models with the Delco distributor (condenser inside), any cooling.
Distributor rotor26228415,36Moyer Marine IGEM_03_4036Early models, Prestolite distributor; any cooling.
Distributor rotor28870215,37Moyer Marine IGLM_03_2937Late models, Delco distributor; any cooling.
Distributor cap26228115,38Moyer Marine IGEM_04_4138Early models, Prestolite distributor; any cooling.
Distributor cap28869915,39,40Moyer Marine IGLM_04_30.039Late models, Delco distributor; any cooling. After a Pertronix Ignitor conversion use Moyer’s notched cap IGLM_04.1_30.1.
Ignition coil28855915,41Moyer Marine IGLM_05_314112 V, for Prestolite (early) and Delco (late) ignition, any cooling; 6 V engines before 1963: 276114. Moyer’s coil IGLM_05_31 (“Standard 805”, internal resistance, 3.6 to 4.0 ohm primary) suits points and Ignitor systems on early and late engines.
Spark plug27327615,42,43Champion RJ12C42,43Universal lists 273276 as Champion spark plugs, 4 per engine; the parts list specifies Champion J-8, 14 mm, gap 0.035 in. Early and late models, any cooling. Moyer supplies Champion RJ12C (set of 4, IGLM_06_32) or Autolite equivalents (IGLM_06_452), a slightly hotter heat range than the J-8 that helps older engines that foul plugs; one source (Moyer) for the RJ12C.
Spark-plug lead set29514915,44Moyer Marine IGLM_07_3344Late models (Delco distributor), any cooling; early (Prestolite) lead set: 277051. Moyer’s set IGLM_07_33 is made to fit early and late engines.
Ignition tune-up kitIGLM_10_3545,46—Plugs, points, condenser, rotor, cap. Moyer number, one source (Moyer). Late models (Delco); early models (Prestolite): IGEM_10_43. Any cooling.
Electronic ignition kitIGLM_13_19548,47Pertronix 1146A47Late models (Delco distributor), any cooling. Moyer number, one source (Moyer): a Moyer-modified Pertronix Ignitor that replaces points and condenser inside the distributor; Moyer names the Pertronix kit number 1146A. Needs the notched cap IGLM_04.1_30.1; red lead to coil +, black to coil −.
Electronic ignition kitIGEM_12_3749,47Pertronix 154547Early models (Prestolite distributor), any cooling. Moyer number, one source (Moyer); Moyer names the Pertronix kit number 1545. The distributor usually has to come out for fitting.
Distributor29909815,50,51Moyer Marine IGLM_13.1_34750Westerbeke’s complete replacement Delco distributor with drive gear (distributor alone: 299097), also listed as the replacement for the early Auto-Lite distributor 261045, so for early and late models; any cooling. Moyer sells new Pertronix distributors with Ignitor module: IGLM_13.1_347 for late engines (replaces the Delco) and IGEM_13.1_347 for early engines (replaces the Prestolite, bracket included).
Fuel lift pump29925015,52,53replaces 261104Moyer Marine FPMP_11_32352Mechanical fuel pump: Westerbeke no longer supplies the original pump 261104 with sediment bowl (strainer element 297340, bowl gasket 297339) or its kits and lists the conversion kit 299250 to an electric pump instead (next row). Engines with a push-rod hole, early or late; any cooling. Moyer sells rebuilt mechanical pumps (FPMP_11_323, exchange) and a rebuild kit (FPMP_13_320: diaphragm, valves, springs, screen, gaskets). Late-1970s engines (Moyer: from about serial 196000) have no push-rod hole and must keep an electric pump.
Fuel pump29987615,54,55,56replaces 299228Moyer Marine FPMP_01_4454Universal electric fuel pump, part of conversion kit 299250 with bracket 299195 and oil-pressure safety switch 299303; for late engines without a push-rod hole and as the conversion on any engine, early or late; any cooling. Moyer: standard pump FPMP_01_44 (2.75 to 4 psi, the type Universal used), Catalina 30 version FPMP_02_194 (4 to 5.5 psi, for tanks far aft and below the engine) and engine-mounted kit FPMP_10_52 modelled on Universal’s late layout.
Fuel pump gasket26156215,57,21Moyer Marine GASK_06_14557Flange gasket of the mechanical pump, engines with a push-rod hole, early or late; any cooling. Moyer seals it on both sides.
Fuel filter (engine)FPMP_07.1_47358,59,60—Moyer number, one source (Moyer): secondary “polishing” filter between fuel pump and carburettor (complete kit FPMP_06_51); early and late models, any cooling. Fit a separate primary filter/water separator for petrol between tank and pump.
Flame arrestor28866115,61,62Moyer Marine FCAR_12_176.361On the carburettor intake. Late series (after 1968); early series 285099; any cooling. Westerbeke stamps the flame-arrestor page “not available” (late screen: 303073). Moyer makes a complete late-model arrestor FCAR_12_176.3 and an element with frame FCAR_11_176.2, tested to SAE J1928.
Alternator30100815,63,64replaces 288182Moyer Marine OVEL_01_13063Motorola 35 A alternator with regulator and pulley (with bracket: 288184), now 301008; Motorola 51 A version 288759, now 302280. 12 V engines, early or late; any cooling. Moyer’s 65 A alternator OVEL_01_130 replaces the Motorola 35 A (needs the 26 in belt IGLM_09_34.1); 100 A version OVEL_01.1_376.
Alternator V-belt23938715,65,66Moyer Marine IGLM_08_3465Belt for the factory Motorola alternator; early and late models, any cooling. Moyer’s 25 in belt IGLM_08_34 is for factory Motorola alternators, the 26 in belt IGLM_09_34.1 for Moyer’s 65 A and 100 A alternators. Tension: about 3/8 in maximum deflection between the pulleys.
Starter motor29909615,67,68,30replaces 262937Moyer Marine OVEL_04_18967Late Delco starter (after 1969), any cooling. Westerbeke’s interchange list pairs the early starters 279268 and 261126 with 299096 but notes that flywheel and housing must be changed too, because early and late ring gears differ (Moyer). Moyer rebuilt exchange starters: late Delco OVEL_04_189, early Prestolite OVEL_06_190.
Engine mount25518915,69,70,60Moyer Marine OHSP_09_23969Set of four adjustable rubber mounts; early and late models, any cooling. Single mounts: front right 262247, now 289233; front left 262248, now 289234; rear 262246, now 289232 (2 needed). Moyer’s adjustable mount OHSP_09_239 is the type used in most 1970s boats (early rail-mounted engines need the rails cut down about 2-1/2 in and the oil-pan holes opened to 11/16 in); C&C-type stainless mount: OHSP_10_240.
Anode (engine)29976015,71,72,73—Fresh-water cooled engines only, early or late: zinc pencil for the heat exchanger of Universal’s factory fresh-water cooling kit. Raw-water cooled Atomic 4s have no factory zinc location. Moyer’s heat-exchanger anode CFWC_04_268 (3/8 in NPT) is for Moyer’s own fresh-water kits; OBLK_19_572 only for Moyer’s new blocks.
Engine oil filterOOIL_58274,15—Moyer number, one source (Moyer): spin-on full-flow filter only for Moyer Marine’s new replacement blocks, any cooling. Original Atomic 4s, early or late, have no oil filter as standard (Universal’s optional filter kit is no longer available).
Fresh-water cooling kitCFWK_01_26475,76,15—Fresh-water cooling conversion for raw-water cooled engines; Moyer names no early/late limit. Moyer number, one source (Moyer): kit with a front-mounted sea-water pump (needs about 2 in clearance ahead of the flywheel cover); the side-mounted version CFWK_623 stays within the engine outline. Both include the MMI 501 sea-water pump (Oberdorfer 202M impeller), a bulkhead-mounted heat exchanger, belt and brackets; hose extra. Universal’s factory kits 256184 (UJ/UJR) and 256185 (V-drive) are marked not available.

Numbers checked against the sources below on 13 October 2026. Always confirm against your serial number and exact type before ordering.

Service intervals

TaskInterval
Engine oil changeEvery 50 h or yearly4,77
Raw water impellerImpeller and back-plate gasket every 200 h or every second season; fresh-water pump of a fresh-water cooled engine every 300 h or every third season1,4
Water pumpStrip down every 5 years and rebuild as needed4
ThermostatRaw-water cooled: remove and soak clean every 2 years4
Cooling systemRaw-water cooled: pressure-flush block, head and manifold every 3 years; acid flush at least every 6 years4
Coolant changeFresh-water cooled: replace the antifreeze every 5 years4
Heat exchanger cleanFresh-water cooled: flush every 5 years and check the zinc4
Fuel pre-filterPrimary filter yearly (every two years if it stays clean)4
Fuel filterIn-line polishing filter (pump to carburettor) at least every 3 years4
Fuel pumpMechanical pump: clean the sediment bowl and screen every 2 years (Universal manual: strainer every 50 h, bowl every 100 h)4,77
CarburettorFlush through the main passage plug once a year and after any long lay-up4,78
Flame arrestorInspect and clean every 100 h (Universal manual); clean and lightly oil once a year (Moyer)77,4
Valve clearanceCheck every 150 h (Universal manual)77
Spark plugClean and re-gap every 150 h (Universal manual)77
Contact points & distributorClean and adjust the points, oil the breaker cam and the advance weights twice a season (Universal manual)77
Season checkEvery year: belts, compression (80 psi or more per cylinder), coil resistance, wiring, hoses, timing for best rpm at cruise4

Hours or time, whichever comes first. Most figures come from Moyer Marine’s annual Atomic 4 checklist (newsletter, summer 2010) and Moyer’s product pages. Figures marked “Universal manual” are from Universal’s operation manual 200156, a general manual that covers the Atomic Four together with other Universal engines; it also puts an overhaul at about 3000 h.

Specifications

VersionsUJ direct drive (5101), UJR 2:1 reduction (5102), UJVD V-drive (5103); the Atomic Stevedore is a derated version. Early models up to serial 79475 (Prestolite distributor, Dole thermostat on the manifold, cast-iron carburettor); late models from serial 79476, introduced 1967 to 1969 (Delco distributor, Holley thermostat on the head, aluminium carburettor)15,30
Years builtLate 1940s to 198415
Cylinders4 in line, four-stroke, side valves (L-head)15
Displacement64.46 cu in (1.06 l)15
Bore × stroke2-9/16 × 3-1/8 in (65.1 × 79.4 mm)15
Power30 hp at 3500 rpm (UJ, UJR, UJVD); factory curve about 25 hp at 3000 rpm and 20 hp at 2500 rpm. Derated Atomic Stevedore: 18.5 hp at 3000 rpm15,79
Rated speed3500 rpm15
Compression ratio6.3:115,60
Compression pressure95 to 125 psi (Westerbeke); most engines in service read 100 to 115 psi. Moyer: about 80 to 85 psi is the minimum for adequate performance23,60,78
Firing order1-2-4-3, No. 1 cylinder at the flywheel end15,80
Direction of rotationCounter-clockwise seen from the flywheel end. Direct drive turns a right-hand propeller; with the 2:1 reduction gear or a V-drive the propeller turns the other way15,60
GearboxBuilt-in reversing gear lubricated by the engine oil. UJ: direct drive with three-bolt shaft coupling; UJR: reduction gear with four-bolt coupling; UJVD: separate V-drive with its own gear oil (Moyer: medium-viscosity automotive gear oil, 50 to 90)15,60,81
Gear ratioUJ 1:1; UJR 2.04:1; UJVD V-drive 1:1, 1.29:1, 1.67:1 or 2:115
FuelRegular-grade petrol; updraft Zenith carburettor with flame arrestor. Mechanical fuel pump on most engines, electric pump on late-1970s engines (Moyer: from about serial 196000 there is no push-rod hole for a mechanical pump)15,79,52
Fuel consumptionAbout 1 US gal/h (3.8 l/h) at cruise is common; Moyer reports close to 0.5 gal/h (1.9 l/h) with a leaned cruise mixture78
Engine oil gradeSAE 30 (Universal); later Universal manuals: SAE 30 detergent oil above 32 °F (0 °C), 10W-30 acceptable15,82
Engine oil capacityDepends on the installation angle. UJ/UJVD to the full mark: 5-3/4 US qt (5.4 l) when level, 4-3/4 qt at 5°, 3-1/2 qt (3.3 l) at 10°, 2-3/4 qt at 15°; UJR: 6, 5-1/4, 4 and 3-1/4 qt. Moyer: about 5.5 qt dry, usually 3 to 3.5 qt at an oil change. Always fill to the dipstick mark15,82
Oil pressureMoyer: 35 to 40 psi warm at cruise (readjust the regulating valve if below 35 psi), at idle not below about half the cruise pressure. Universal minimum: 10 psi at idle, 30 psi at 2500 rpm82,4
CoolingRaw-water (direct) cooling with thermostatic bypass as standard; rubber-impeller pump (bronze gear pump on early engines, later Sherwood, Jabsco and, for about the last 12 years, Oberdorfer). Fresh-water cooling was a Universal option and is sold as a conversion kit by Moyer15,6,75
Thermostat opens atEarly (Dole): 140 °F (60 °C), 160 °F (71 °C) version for fresh-water cooling; late (Holley): 145 °F (63 °C); 180 °F (82 °C) kit 200468 for fresh-water cooled engines only. Normal running temperature 130 to 160 °F (54 to 71 °C)15,18,77
IgnitionContact-breaker ignition. Static timing: points just opening at TDC, then turn the distributor for best rpm at cruise. Point gap: Prestolite (early) 0.018 to 0.020 in, dwell 38°; Delco (late) 0.025 in, dwell 31 to 34°15,80
Spark plugChampion J-8, 14 mm (original specification); Moyer now supplies Champion RJ12C or Autolite equivalents15,42,43
Spark plug gap0.035 in (0.89 mm)15
Valve clearance (cold)Intake 0.010 in (0.25 mm), exhaust 0.012 in (0.30 mm)15,60
Valve clearance (hot)Intake 0.008 in (0.20 mm), exhaust 0.010 in (0.25 mm)15,60
Tightening torquesCylinder head nuts 35 ft-lb (47 Nm). With the single graphite gasket 200452: engine cold, two stages (25, then 35 ft-lb) in the factory sequence, no retorque, no sealant. Moyer: Universal accepted 30 ft-lb where stud threads are doubtful23,15,60
Alternator12 V system (6 V before 1963); 37 A alternator standard on later engines, 55 A optional; the parts list also has Motorola 35 A and 51 A alternators79,15
Belt tensionMax. 3/8 in (about 10 mm) deflection between the pulleys (Universal); Moyer suggests about 1/2 in total sideways play15,4
PortsExhaust flange 1-1/4 in NPT; water inlet and outlet 3/8 in NPT; fuel pump 1/8 in NPT; fuel line 5/16 in OD copper15
Dry weightAbout 310 lb (141 kg)83
Dimensions27 × 18.2 × 19.2 in (686 × 462 × 488 mm), length × width × height83

Good to know

  • Find out whether you have an early or a late engine before you order: a large Delco distributor with the condenser inside, a small dome-shaped thermostat housing on the front corner of the head, an aluminium carburettor and a square reverse-gear cover mean late parts; a small Prestolite distributor with the condenser outside, a cast-iron carburettor and a tombstone-shaped cover mean early parts. Transition engines can mix both.30
  • Fit the 180 °F thermostat kit 200468 only to fresh-water cooled engines: in a raw-water cooled Atomic 4 it does harm, and even with fresh-water cooling the system must be free of scale.18
  • Fill oil to the dipstick mark, not by a fixed number of quarts: the amount depends on the installation angle. There is no front crankshaft seal, so overfilling or a steep angle lets oil escape behind the flywheel.15
  • On the first start of the season keep the raw-water seacock closed until the engine fires, then open it straight away: during long cranking water can otherwise back up into the exhaust manifold.84
  • Ethanol petrol (E10) loosens old varnish in tanks and lines: after switching, expect to change filters several times in the first season and flush the carburettor through its main passage plug.84
  • Most ignition failures start in the 12 V primary wiring from the starter solenoid through the ignition switch to the coil. Carry a coil, four plugs, a spare fuel pump, a spare water pump or impeller and a jumper wire from the solenoid battery terminal to coil +.60

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Sources

  1. moyermarine.com/product/flexible-impeller-csob_02_63/
  2. moyermarine.com/product/mmi-502-flange-pump-csob_00_365/
  3. moyermarine.com/product/sea-water-pump-mmi-501-pedestal-pump-csob_00-1_501/
  4. moyermarine.com/NLarchive/summer_2010/Summer_2010.html
  5. prod.xylem.com/siteassets/brand/jabsco/resources/technical-brochure/17120-technical-datas…
  6. moyermarine.com/wp-content/uploads/2017/12/Water-pump-rebuild-instruc-Oberdorfer-CSOB_09_…
  7. moyermarine.com/product/water-pump-back-plate-gasket-202m7-gask_26_67/
  8. moyermarine.com/product/water-pump-back-plate-gasket-early-model-gask_24_163/
  9. moyermarine.com/product/water-pump-back-plate-gasket-oberdorfer-201m-csob_06_192/
  10. moyermarine.com/product/o-ring-for-oberdorfer-water-pump-backplate-csob_06_518/
  11. moyermarine.com/product/repair-kit-for-oberdorfer-202m7-pump-csob_09_70/
  12. moyermarine.com/product/repair-kit-for-mmi-502-flange-pump-csob_00_461/
  13. moyermarine.com/product/repair-kit-for-mmi-501-pedestal-pump-csob_00-1_519/
  14. moyermarine.com/product/mmi-thermostat-150-degree/
  15. westerbeke.com/parts%20manual/200150%20rev.%2092%20atomic%204%20parts%20list.pdf
  16. moyermarine.com/product/thermostat-early-model-140-degree-csth_05_60-3/
  17. moyermarine.com/product/thermostat-housing-early-model-dole-type-csth_04_173/
  18. westerbeke.com/service%20bulletin/sb_227.pdf
  19. moyermarine.com/product/thermostat-housing-gasket-gask_05_144/
  20. moyermarine.com/product/dole-thermostat-housing-gasket-early-model-gask_23_162/
  21. moyermarine.com/wp-content/uploads/2017/12/Gasket-kit-instructions_GASK_01_140.pdf
  22. moyermarine.com/product/mm001-head-gasket-steel-reinforced-graphite-set-of-2-gask_03_142/
  23. westerbeke.com/service%20bulletin/sb_223.pdf
  24. moyermarine.com/product/complete-gasket-set-lateearly-model-gask_01_140/
  25. moyermarine.com/product/valve-cover-gasket-gask_09_148/
  26. moyermarine.com/product/manifold-gasket-gask_08_147/
  27. moyermarine.com/product/exhaust-flange-exht_04_127/
  28. moyermarine.com/product/manifold-late-model-aftermarket-ovcm_02-0_303/
  29. moyermarine.com/product/moyer-marine-carburetor-late-model-new-50-00-core-charge-included…
  30. moyermarine.com/faqemorlm/
  31. moyermarine.com/product/carburetor-late-model-service-and-cleaning-kit/
  32. moyermarine.com/product/points-early-model-igem_01_38/
  33. moyermarine.com/product/points-late-model-iglm_01_27/
  34. moyermarine.com/product/condenser-early-model-igem_02_39/
  35. moyermarine.com/product/condenser-late-model-iglm_02_28/
  36. moyermarine.com/product/rotor-early-model-igem_03_40/
  37. moyermarine.com/product/rotor-late-model-iglm_03_29/
  38. moyermarine.com/product/distributor-cap-early-model-igem_04_41/
  39. moyermarine.com/product/distributor-cap-late-model-for-ignitor-systems-iglm_04-1_30-1-2/
  40. moyermarine.com/product/distributor-cap-late-model-for-ignitor-systems-iglm_04-1_30-1/
  41. moyermarine.com/product/coil-with-internal-resistance-iglm_05_31/
  42. moyermarine.com/product/spark-plugs-champion-rj12c-set-of-4-iglm_06_32/
  43. moyermarine.com/product/plugs-autolite-set-of-4-iglm_06_452/
  44. moyermarine.com/product/spark-plug-wire-set-iglm_07_33/
  45. moyermarine.com/product/tune-up-kit-late-model-plugs-points-condenser-rotor-and-cap-iglm_…
  46. moyermarine.com/product/tune-up-kit-early-model-plugs-points-condenser-rotor-and-cap/
  47. moyermarine.com/wp-content/uploads/2017/12/Ignitor-instructions_IGLM_13_195.pdf
  48. moyermarine.com/product/ignitor-electronic-ignition-kit-late-model-iglm_13_195/
  49. moyermarine.com/product/ignitor-electronic-ignition-kit-early-model-igem_12_37/
  50. moyermarine.com/product/pertronix-distributor-new-with-ignitor-electronic-ignition-module…
  51. moyermarine.com/product/pertronix-distributor-new-for-early-model/
  52. moyermarine.com/product/mechanical-fuel-pump-rebuilt-fpmp_11_323/
  53. moyermarine.com/product/mechanical-fuel-pump-rebuild-kit-fpmp_13_320/
  54. moyermarine.com/product/electric-fuel-pump-2-3-psi-fpmp_01_44/
  55. moyermarine.com/product/electric-fuel-pump-2-3-psi-fpmp_01_44-2/
  56. moyermarine.com/product/engine-mounted-electric-fuel-pump-kit-fpmp_10_52/
  57. moyermarine.com/product/fuel-pump-flange-gasket-gask_06_145/
  58. moyermarine.com/product/fuel-filter-inline-secondary-polishing-filter-fpmp_07-1_473/
  59. moyermarine.com/product/in-line-fuel-filter-kit-fpmp_06_51/
  60. moyermarine.com/faq-3/
  61. moyermarine.com/product/flame-arrestor-complete-late-model-fcar_12_176-3/
  62. moyermarine.com/product/flame-arrestorframe-combination-fcar_11_176-2/
  63. moyermarine.com/product/alternator-55-amp-api-new-ovel_01_130/
  64. moyermarine.com/product/high-output-alternator-by-api-120-amps-ovel_01-1_376/
  65. moyermarine.com/product/alternator-belt-25-inch-motorola-alternators-iglm_08_34/
  66. moyermarine.com/product/alternator-belt-26-inch-iglm_09_34-1/
  67. moyermarine.com/product/starter-late-model-delco-rebuilt-ovel_04_189/
  68. moyermarine.com/product/starter-early-model-prestolite-rebuilt-ovel_04_189/
  69. moyermarine.com/product/adjustable-engine-mount-standard-ohsp_09_239/
  70. moyermarine.com/product/cc-type-engine-mount-stainless-ohsp_10_240/
  71. moyermarine.com/faq-3-2-2-2-2/
  72. moyermarine.com/product/sacrificial-anode-for-heat-exchanger-cfwc_04_268/
  73. moyermarine.com/product/sacrificial-anode-for-mmi-new-engine-blocks-oblk_19_572/
  74. moyermarine.com/product/oil-filter-for-mmi-new-blocks/
  75. moyermarine.com/product/mmi-fresh-water-cooling-kit-cfwk_01_264/
  76. moyermarine.com/product/mmi-fresh-water-cooling-kit-side-mounted/
  77. westerbeke.com/operator%27s%20manual/200156_atomic4_operator_man.pdf
  78. moyermarine.com/NLarchive/spring_2011/Spring_2011.html
  79. westerbeke.com/advanced%20specs/atomic%204%20sales%20literature.pdf
  80. moyermarine.com/faq-3-2/
  81. moyermarine.com/faq-3-2-2-2-2-2-2/
  82. moyermarine.com/faq-3-2-2-2/
  83. westerbeke.com/Category/UniversalAtomic4/5399ADA2DAF73A26740BF762
  84. moyermarine.com/NLarchive/winter_2014/Winter_2014.html

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