Volvo Penta · Sterndrive

Volvo Penta IPS 350–650

Volvo Penta IPS is a pod drive: each engine turns a steerable unit under the hull with two forward-facing, counter-rotating propellers, and the exhaust leaves through the drive into the prop wash. It was launched in January 2005. The first generation (IPS1, drive plates IPS-A to IPS-F) ran behind the D4 and D6 diesels as IPS 350 to IPS 600 up to the F engines of 2019; since then the IPS10 (IPS10-A and IPS10-B) has been paired with the D6 G as D6-IPS 400 to 650, and Volvo lists no D4 with it. The IPS number is not the engine power (an IPS 600 has a 435 hp D6), so read the drive plate before ordering: oil filter, strainer, rubber rings and shaft-seal kit changed with the IPS10, while the propeller sets, nuts, spinner and both anodes carried over. The larger IPS15, IPS2/IPS20 and IPS3/IPS30 drives behind the D8, D11 and D13 use other propellers and parts and are not covered here.

Manuals & documents

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

Wear parts & part numbers

PartOEM numberAlso fitsNote
Drive oil filter8343371,2,3,4—IPS1 (IPS-A to IPS-F), all ratings IPS 350 to 600: the drive’s oil filter, on the oil cooler (early drives) or on a bracket at the upper gear housing (IPS-F). Change it with every drive oil change; it holds 0.2 l.
Drive oil filter239354615,6,7—IPS10-A and IPS10-B: oil filter kit with the filter 22863663 and the oil dipstick 23442759; Volvo’s catalogue says the dipstick has to be ordered with the filter.
Service kit239354626,8—IPS10-A and IPS10-B: oil filter kit 23935461 plus oil strainer kit 22846271 (strainer 22846273), everything the 400-hour drive oil service needs except the oil.
Drive oil strainer38867949,2,10,11—IPS1 (IPS-A to IPS-F): oil strainer in the oil pump and input bearing housing; on the IPS-F the catalogue shows a second one under a cover on the upper gear housing, and the oil-system conversion kit 21551779 for IPS-A to IPS-C brings two. The service protocols change an inner and an outer strainer (see intervals).
Drive oil strainer228462736,12,13—IPS10-A and IPS10-B: oil strainer on the upper gear housing, replaced at every drive oil change (plug 10 Nm). Volvo’s IPS10 drawing shows it inside kit 22846271, which is also part of service kit 23935462; the parts list ties 22846271 on its own to the Aquamatic DPI, so order by the drive’s serial number.
Gear oil22479650 · 22479648 · 2247964714,13,15,16—Volvo Penta IPS and Aquamatic synthetic transmission oil 75W-90 in 1 l, 5 l and 20 l, as listed in the current operator’s and service manuals for IPS1 and IPS10. Allow about 14 l (IPS1) or 15 l (IPS10) per drive.
Transom anode2317284617,18,19,20—Transom anode kit (aluminium, for fresh, brackish and salt water) for IPS1 and IPS10: anode 23172849 with cable, rods and nuts. Boats with electrically conductive hulls also need mounting kit 21211763.
Transom anode2117447621,22,23,24—Zinc anode of the optional Active Corrosion Protection (ACP) unit on the transom, listed for IPS1 and IPS10-A; it takes over when ACP is switched to Comfort or Inactive or the batteries run low.
Anode (lower unit)359398125,26,27,28,15,13—Anode kit on the drive’s lower unit (anode 3593881 and washer), the same for IPS1 and IPS10. The service manuals replace the drive anode at 50 % wear and tighten it to 24 Nm; it stays on even with ACP fitted. A dealer sells it as a zinc anode, while the IPS10 service manual allows aluminium anodes only: check the material with your dealer.
Corrosion inhibitor95102274,29,30—IPS1: corrosion protection sprayed into the gap between drive housing and clamping ring (first-generation manual). For the IPS10 Volvo lists anti-rust agent 85148526 instead.
Corrosion inhibitor8514852631,32,13—IPS10: anti-rust agent for the top of the clamping ring, also named in the G service manual after cleaning the gap between clamping ring and rubber seal.
Rubber ring (drive to hull)386106829,33—IPS1 (IPS-A to IPS-F): rubber ring between drive and hull insert, two per drive, under the clamping ring.
Rubber ring (drive to hull)2225617131,34—IPS10-A and IPS10-B: the rubber ring of the IPS10 clamping-ring kit, two per drive.
Propeller3861092 · 3861095 · 3861098 · 3861101 · 3861104 · 3861107 · 3861110 · 3861113 · 386111635,36,37,38,39,40,41,42,43,44—T-series propeller sets (front and rear propeller) for IPS1 and IPS10, in the order T2, T3, T4, T5, T6, T7, T8, T9, T10 as in Volvo’s catalogue. For the IPS10 the catalogue lists the T4 set as 23442954. A propeller dealer gives these as the old numbers and sells T2 to T8 as 23442952 to 23442958; it lists T9 under 3861113 and T10 as no longer available, so ask for the current number.
Propeller21368025 · 21368016 · 21258473 · 2136801235,36,45,46,47,48,38—TS-series propeller sets for IPS1 and IPS10, in the order TS3, TS4, TS5, TS6 as in Volvo’s catalogue. The same dealer gives these as old numbers and lists the sets now as 23442963 to 23442966.
Propeller nut2129348035,36,49,50—Propeller nut, IPS1 and IPS10; it replaced 22001842 (the nut for spinner kit 22659020). Early production used propeller nut 3861207 (M10).
Propeller hardware kit3861087 · 3861209 · 386108835,36,51,52,53,54,55,56,4—Lock nut 3861087, lock ring 3861209 and lock plate 3861088 of the propeller fastening, IPS1 and IPS10. The locking-ring screws take 24–28 Nm.
Nose cone2377944935,36,57,58,4replaces 22659020replaces 22077581—Spinner kit for IPS1 and IPS10; a dealer lists its contents as spinner 22072153, both lock plates, both propeller nuts, nine screws, the propeller tool and grease. Tighten its centre screw fully home, or the spinner gets damaged the next time the propellers come off.
Rope cutter2306272936,35,59,60,61replaces 21686492—Line cutter behind the propellers. Volvo names 23062729 for IPS1, IPS10 and the larger drives and lists it for the IPS10; the IPS1 catalogue still shows 21686492 (drives from serial number 3940018643), which a dealer gives as its old number.
Propeller shaft seal3842286 · 384228825,62,63,64,65,66,24—Propeller shaft seals (sealing rings, brown 3842286 and blue 3842288) of the lower unit, IPS1 and IPS10, plus sealing ring kit 3842290. A workshop job with special tools, due every 1200 h; water in the drive oil usually means these seals are leaking.
Propeller shaft seal2394378226,67—IPS10-A and IPS10-B: sealing ring kit of the propeller shafts (3842286, 23748070 and 3842288).
Lower unit seal kit381235768,69—IPS1 (IPS-A to IPS-F): lower gasket kit with the propeller-shaft sealing rings, sealing ring kit 3842290, nut, retainer and O-rings.
Gasket set381235668,70—IPS1 (IPS-A to IPS-F): upper gasket kit with lip seal, gaskets, O-rings, round nuts and sealing kits for the upper gear housing.
Propeller grease828250 · 226183304,36,71,15,13—Water-resistant grease for the propeller shaft splines and threads: 828250 in the operator’s manuals and the parts catalogue, 22618330 in the 2026 service manuals. Grease the shafts once a year, otherwise the propellers are hard to get off.
Emergency stop switch & lanyard21469024 · 2202728072,73,74—Safety lanyard switch 21469024 and strap 22027280, listed for IPS1 packages and the D6 G IPS engines.

Numbers checked against the sources below on 23 October 2026. Always confirm against your serial number and exact type before ordering.

Service intervals

TaskInterval
Oil level checkDaily before starting, at the dipstick, after the drive has stood for at least 12 hours; do not screw the dipstick in to read it. IPS10: read it on the display (Info > Vessel info > Oil level) after at least 6 hours’ standstill with GPS signal, otherwise use the dipstick4,24,14
First serviceIPS1 only: after the first 400 h or 12 months, replace the inner oil strainer of the drive and clean the metal strainer in the shift valves66,75,76
Gear oil changeDrive oil and oil filter: IPS1 every 400 h or 12 months, IPS10 every 400 h or 24 months. Also when laying up66,75,77,78,4
Drive oil strainersIPS1: outer oil strainer with every oil change (not on engine versions A–C), metal strainer in the shift valves cleaned every 800 h or 48 months. IPS10: oil strainer with every oil change (400 h or 24 months)66,75,77
AnodeInspect the anodes and, if fitted, the ACP every 200 h or 12 months; replace an anode at 50 % wear (the first-generation operator’s manual says at about one third). Clean new anodes with emery cloth, never with a wire brush66,77,15,4
Corrosion protectionEvery 400 h or 12 months check the gap between drive housing and clamping ring: clean it and coat it with corrosion inhibitor (the first-generation operator’s manual: every 200 h)66,75,77,4,13
Exhaust hoseInspect every 400 h or 12 months; on the IPS10 also check the exhaust hose clamps, lock clip and sealing wire every 200 h or 12 months66,75,77
Propeller shaft sealsEvery 1200 h66,75,78,15
ExhaustEvery 1200 h inspect the white plastic exhaust plate and its seal; on the IPS1 clean the magnet in the lower unit at the same service75,77,15
PropellerOnce a year take the propellers off, clean the shafts and grease them; check the blades for damage15,13
Storage / winterisingLaying up ashore: clean the drive right after lifting, change drive oil and filter, take the propellers off and grease the shafts, check the anodes, touch up the drive’s antifouling4

Hours or time, whichever comes first. From Volvo Penta’s printed IPS 350–600 service protocol (2016), the protocols Volvo generates per engine or drive (D4-300D-F, D6-435D-F, IPS10-A, IPS10-B), the operator’s manuals and the service manuals of 2026. Only drive items are listed; engine oil, filters and impeller belong to the engine. Two differences: the first-generation operator’s manual checks the clamping-ring gap every 200 h and replaces anodes at about one third wear, and the generated IPS10-A protocol has no line for the propeller shaft seals, which the IPS10-B and all IPS1 protocols change every 1200 h.

Specifications

DrivePod drive: a steerable unit through the hull bottom with two forward-facing, counter-rotating propellers that pull the boat. Hydraulic shifting via electric solenoid valves, electric steering (steer-by-wire); cooling water comes in and exhaust goes out through the drive4,79,80
Engine fitFirst generation (IPS1): IPS 350 = D4-260D, IPS 400 = D4-300D or D6-310D, IPS 450 = D6-330D, IPS 500 = D6-370D, IPS 600 = D6-435D (engine versions A–F). IPS10 with the D6 G: D6-IPS 400 = D6-300D-G, 450 = D6-340D-G, 500 = D6-380D-G, 600 = D6-440D-G, 650 = D6-480D-G. Always two or more drives (twin, triple or quadruple installations)4,24,14,81,82
PowerCrankshaft / propeller-shaft power (ISO 8665). IPS1: IPS 350 191 / 182 kW (260 / 248 hp), IPS 400 with D4 221 / 212 kW (300 / 289 hp), IPS 400 with D6 228 / 217 kW (310 / 295 hp), IPS 450 243 / 231 kW (330 / 314 hp), IPS 500 272 / 259 kW (370 / 352 hp), IPS 600 320 / 307 kW (435 / 418 hp). IPS10: from 221 / 212 kW (300 / 289 hp, D6-IPS 400) to 353 / 339 kW (480 / 461 hp, D6-IPS 650)24,4,80,14
ModelsThis page: IPS 350, 400, 450, 500 and 600 (first generation) and D6-IPS 400, 450, 500, 600 and 650 with the IPS10. Not covered: the larger drives IPS15 (D8, N-series propellers), IPS2 and IPS20 (D11, e.g. IPS 800 and 950, P series) and IPS3 and IPS30 (D13, Q series)79,80,83,84,85,86
VersionsThe drive has its own plate with product designation, gear ratio, serial and product number. First generation: IPS-A to IPS-F (Volvo also calls it IPS1); the IPS10 comes as IPS10-A and IPS10-B. The steering servo changed with the control system: EVC-B/B2 on IPS-A, EVC-C3 on IPS-D, EVC-D and EVC-E on IPS-F, EVC2.0 on the IPS104,15,87,88,89,90,91
Years builtLaunched in January 2005. The first generation went up to the F engines (manuals of 04-2019); the IPS10 came with the D6 G in 2019 (product leaflet 12-2019) and is still current (operator’s manual 05-2026)92,93,24,80,14
Gear ratioIPS1: IPS 350 and IPS 400 with D4 2.08:1, IPS 400 with D6, IPS 450 and IPS 500 1.94:1, IPS 600 1.82:1. IPS10: 1.853:1 for every rating. The ratio is on the drive plate4,24,14,80
Gear oil capacityIPS1: about 14 l, 0.5 l between MIN and MAX, of which 0.2 l in the filter (the 2026 service manual says the drive holds 14.7 l). IPS10: about 15 l, plus 0.5 l when the filter is changed4,24,15,14,13
Gear oil gradeVolvo Penta IPS and Aquamatic synthetic transmission oil 75W-90 only, in the current manuals 22479650 (1 l), 22479648 (5 l) or 22479647 (20 l). Older books name 1141634 (API GL5 SAE 75W/90, synthetic; first-generation manual) and 3809443 (1 l) or 1141679 (US quart) (2019 manuals). Volvo warns that other oils change the shifting and refuses warranty claims if the wrong oil was used14,13,15,4,24
WeightDry weight of engine and drive: IPS 350 and IPS 400 with D4 780 kg, IPS 400 with D6 and IPS 450 863 kg, IPS 500 887 kg, IPS 600 901 kg; D6 with IPS10 885 kg (IPS 400/450), 900 kg (IPS 500), 920 kg (IPS 600/650)24,14,79,80
PropellerTwo forward-facing, counter-rotating propellers per drive, sold as front-and-rear sets T2 to T10 and TS3 to TS6; the same series for IPS1 and IPS10. Speed range 17–45 knots (IPS1) and 15–50 knots (IPS10). A propeller dealer describes the T sets as made for fully planing, faster hulls and the TS sets for semi-planing hulls with moderate top speed, with a three-blade front and a four-blade rear propeller79,80,35,36,37
Full-throttle rangeIPS1: 3400–3600 rpm at full throttle (first-generation manual). IPS10, heavy / light load: IPS 400 3300–3350 / 3380–3430, IPS 450 3400–3450 / 3480–3530, IPS 500 3500–3550 / 3580–3630, IPS 600 3600–3650 / 3650–3730, IPS 650 3700–3750 / 3780–3830 rpm. If the engine runs above the range, Volvo says to fit a set with more pitch4,14,24
ControlElectronic Vessel Control (EVC): electronic throttle and shift, steer-by-wire and low-speed mode as standard; joystick, Dynamic Positioning System and autopilot as options. 12 V with the D4, 12 or 24 V with the D679,80
CoolingSeawater enters through the drive (shut-off cock on the drive) and is drawn in by the engine’s seawater pump; close the cock before working on the seawater system4,15
Exhaust outletThrough the drive, behind the propellers into the prop wash; the white plastic exhaust plate on the drive must not be painted4,15,13
MountingThe drive sits in a hull insert and is held by a clamping ring with 16 flange screws; two rubber rings seal it to the hull and take up thrust and vibration. IPS1: connecting shaft and housing of 335 mm (compact, standard) or 570–1750 mm (jackshaft option); the IPS10’s standard cardan length is 385 ± 15 mm29,31,94,95,4,79,80
Tightening torquesPropeller locking-ring screws 24–28 Nm (first-generation manual). Drive anode 24 Nm, drain plug at the rear of the drive 48 Nm. IPS10 also: plug for draining from inside 30 Nm, strainer plug and oil level sensor 10 Nm, oil quality sensor 35 Nm. Oil filter hand-tight, then another half turn4,15,13
MaterialNickel-aluminium bronze and stainless steel in all main underwater components79,80

Good to know

  • Read the drive plate before ordering. IPS1 (IPS-A to IPS-F) and IPS10 share the propeller sets (except T4), nuts, spinner, transom anode and drive anode, but not the oil filter (834337 against kit 23935461), strainer, rubber rings or propeller-shaft seal kit, and the IPS number on the boat says nothing about which generation you have.4,35,36,5,1
  • Use only Volvo’s IPS transmission oil: the clutch packs are tuned to it, and Volvo refuses warranty claims after the wrong oil. Check the level only after the drive has stood for 12 hours; thin, greyish oil means water, usually from the propeller shaft seals, and needs a workshop before the gears suffer.15,24,4
  • Leave the drive anode in place even with ACP fitted. ACP gives off a little chlorine gas; Comfort mode switches it off for four hours and lets the zinc anode on the transom protect the drive. Never paint the anodes, the white plastic exhaust plate or the groove between drive and hull, and use no copper-based or TBT antifouling on the IPS.15,13,24
  • Volvo supplies a propeller tool with the drive. Grease the shaft splines and threads, torque the locking-ring screws to 24–28 Nm and screw the spinner’s centre screw fully home, or it gets damaged next time. Choose the set by the full-throttle rpm: if the engine runs above its range, go up in pitch.4,14
  • If steering fails on one drive, align it straight with the crank tool from the boat’s tool box: gear in neutral, wind to the end stop, then back 75 turns (IPS10 manual), and steer with the levers if all drives are out. After a grounding run slowly to harbour and have drives and propellers checked out of the water.14,24
  • Buying a used IPS boat: ask for proof of the 400-hour drive services (oil, filter, strainers) and, past 1200 hours, of new propeller-shaft seals; check the drive oil for water and the clamping-ring gap for corrosion, and if ACP is fitted, that it shows Good Protection.66,75,24

Videos & how-tos

Links to YouTube, nothing embedded. The maker’s own channel comes first; the rest are channels we found clear and correct for this model.

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