Volvo Penta · Inboard diesel

Volvo Penta TAMD41

The TAMD41 is Volvo Penta’s 3.6-litre in-line six-cylinder diesel with turbocharger and sea-water-cooled aftercooler, fresh-water cooled through a heat exchanger and found in planing motor boats and twin-engine cruisers. It belongs to the 41 family of D41/AD41 (sterndrive), TMD41 (turbo without aftercooler) and TAMD41 (there is no MD41) and came in the versions A, B, D, H, M and P, which differ in filters, sea-water pump, thermostats, injectors, aftercooler and turbo. Volvo Penta’s 1992 brochure rates the TAMD41 at 147 kW (200 hp) at 3800 rpm; ratings for the individual versions were not found in a Volvo source. Volvo gives no production years, only serial-number splits in its parts catalogue, so the years shown here are the print years of its owner’s manuals (1992 to 2006).

Manuals & documents
Wear parts & part numbers
Service intervals
Specifications
Good to know
On the marketplace

Manuals & documents

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

Operator’s manual TAMD41A (31A/41A series, 2001 print) Operation manual pubs.volvopenta.com · PDF · EN
Operator’s manual 31/41 series incl. TAMD41A (MS4A, PRM, SP/DP; 1998 print) Operation manual pubs.volvopenta.com · PDF · EN
Operator’s manual TAMD41B (31/41 series, MS4B, PRM302/402; April 1992 print) Operation manual pubs.volvopenta.com · PDF · EN
Operator’s manual TAMD41B (31/41 series, MS4B, PRM, HS1A; September 1992 print) Operation manual pubs.volvopenta.com · PDF · EN
Owner’s manual TAMD41D (31/41 series and KAD42/KAMD42, 1993) Operation manual pubs.volvopenta.com · PDF · EN
Owner’s manual TAMD41H/M/P (31/41/42 series, 1997) Operation manual pubs.volvopenta.com · PDF · EN
Instruction book 31–43 series incl. TAMD41 (1998) Operation manual pubs.volvopenta.com · PDF · EN
Instruction book TAMD41H/P (31–43 series, HS45A/HS63 gears, 1999) Operation manual pubs.volvopenta.com · PDF · EN
Operator’s manual TAMD41H/M/P (31–43 series, 2006) Operation manual pubs.volvopenta.com · PDF · EN
Instruction book TAMD41, TMD41, D41, AD41 and 31 series, incl. CE engines (six languages) Operation manual pubs.volvopenta.com · PDF · EN · DE · FR · ES · IT · SV
Brochure “The diesel program” (USA, February 1992) with 31/41-series data Brochure pubs.volvopenta.com · PDF · EN
Volvo Penta VCS-2 coolant: accessory leaflet Product leaflet pubs.volvopenta.com · PDF · EN
Workshop manual 31A/B–41A/B (printed only; order page, sign-in required) Printed manual (to order) volvopenta.mis.elanders.com · EN
Volvo Penta manuals & handbooks: TAMD41A Manual portal volvopenta.com · EN
Volvo Penta manuals & handbooks: TAMD41H-A Manual portal volvopenta.com · EN
Volvo Penta manuals & handbooks: TAMD41H-B Manual portal volvopenta.com · EN
Volvo Penta manuals & handbooks: TAMD41P-A Manual portal volvopenta.com · EN
Volvo Penta manuals & handbooks: TAMD41P-B Manual portal volvopenta.com · EN
Volvo Penta parts catalogue, filtered to TAMD41P-A Parts catalogue volvopenta.com · EN
Parts catalogue: TAMD41H/P sea-water pump 3583115 with impeller, wear and shaft kits Parts catalogue volvopenta.com · EN
Parts catalogue: TAMD41H/P turbocharger and air filter Parts catalogue volvopenta.com · EN
Parts catalogue: 41-series overhaul kits (gasket, decarbonising, cylinder head and sub-unit kits) Parts catalogue volvopenta.com · EN

Wear parts & part numbers

Part	OEM number	Also fits	Note
Engine oil filter	`471034`^1,2,3,4,5	—	All TAMD41 versions (A, B, D, H-A, H-B, P, P-A) and the TMD41, AD41 and D41; Volvo’s record also lists the KAD43P and KAMD43P. The same filter sits on oil filter housing 860608 (A, B, D) and 3581943 (H, P).
Fuel filter (engine)	`21624740`^{6,7,8,9,10,11,12}replaces 860874replaces 3588378replaces 3840335	—	Spin-on filter of the TAMD41H-A, H-B, P and P-A (filter housing 3588380), and of the TAMD41B with housing 860873 and the TAMD41D, which were catalogued with 860874. Chain 860874 → 3588378 → 3840335 → 21624740. Volvo’s record for 21624740 names only the TAMD41H-B among the TAMD41 versions (plus KAD42P, KAMD42P, KAMD43P-A), so have your dealer confirm the fit.
Fuel filter (engine)	`838593`^13,14,15	—	Only for the TAMD41A and TAMD41B with filter housing 838472 (also TMD41A/B, AD41A/B, D41B); other B engines have housing 860873 and take the spin-on filter above. No successor shown.
Fuel pre-filter	`861014`^16,17,18	—	10-micron element for Volvo Penta’s water-separating pre-filter 877762 (earlier 861143), catalogued for the TAMD41D and TAMD41P; the 2-micron 1147147 and 30-micron 3581760 elements fit too. Only if a Volvo pre-filter is fitted.
Fuel pre-filter	`828897`^19,20,21	—	Insert for the optional Volvo Penta fuel filter kit 828958 (RINA-approved version 1140038), listed for the TAMD41A, TAMD41B and TAMD41M-A.
Impeller kit (with gasket)	`21951356`^{22,23,24,25,26,27,28}replaces 3841697replaces 21422647	—	Standard pumps 858469 (TAMD41A, B) and 3581558/3583115 (H-A, H-B, P, P-A). Volvo’s record for 21951356 names only the AD41A/B, D41B and the H/P versions (plus KAD42P, KAD43P, KAMD42P, KAMD43P), not the TAMD41A, B or D; for the A and B the fit comes from the 858469 pump breakdown. On pump 860629 Volvo’s catalogue contradicts itself: the H/P breakdown shows this kit, the B/D breakdowns kit 875593, so check the number on your pump.
Impeller kit (with gasket)	`21951366`^{29,30,31,32,33}replaces 877062	—	SOLAS / alternative pumps: 858701 (TAMD41A SOLAS build; the record also lists the TAMD41B and M-A) and 3581559/3583145 (H-A, H-B, P, P-A); Volvo marks 21951366 “SOLAS”. Volvo’s catalogue contradicts itself on SOLAS pump 861198: kit 876587 on the TAMD41B, 3841697 on the H/P versions, so check the number on your pump.
Impeller kit (with gasket)	`875593`^34,35,36	—	Pump 860629 as shown in the TAMD41B (later, standard) and TAMD41D breakdowns; impeller, gasket 808275 and two washers. No successor shown, and the H/P breakdown of the same pump lists 3841697 (now 21951356) instead, so check the number on your pump.
Raw water pump	`3583115`^{37,38,39,24,40,41,42}replaces 860629replaces 3581558	—	Standard pump of the later TAMD41B, the TAMD41D, H-A, H-B, P and P-A. Chain 860629 → 3581558 → 3583115. The older repair kits were 876088 (B, D) and 877373 (H, P). SOLAS / alternative pump: 861198, and 3581559 → 3583145.
Raw water pump	`858469`^{22,23,29,43,44}	—	Standard pump of the TAMD41A and of the TAMD41B up to serial no. 2204141572 (also TMD41A/B); later B engines have pump 860629. The SOLAS TAMD41A uses pump 858701.
Raw water pump wear kit (cover, cam, seals)	`21951396`^24,31,45	—	Contains cover, O-rings, support washer and seal; for sea-water pumps 3583115 and 3583145 on the TAMD41H-A, H-B, P and P-A.
Raw water pump wear kit (cover, cam, seals)	`21951400`^23,30,46	—	Contains cap, cam, gasket, seal, O-ring, screw and washer; for sea-water pumps 858469 and 858701 on the TAMD41A and B (and M-A).
Raw water pump shaft kit (shaft, seal, bearings)	`21951457`^23,24,47	—	Contains shaft, seal, two ball bearings and snap ring; for sea-water pumps 858469, 858701, 3583115 and 3583145, so all TAMD41 versions per Volvo’s record. The screw kit for these pumps is 21951334.
Air filter	`858488`^48,49,50,51	—	Insert for the TAMD41A and B (air filter 838674), the TAMD41D, and H/P engines up to serial no. 2204157885 (air cleaner 861434).
Air filter	`21646645`^50,52,53	—	Insert for the TAMD41H-A, H-B, P and P-A from serial no. 2204157886, in air filter 21782391; the complete air filter kit is 22004848 (replaced 3582367).
Crankcase breather element	`876069`^54,55,56,57replaces 875850replaces 843736	—	Crankcase ventilation filter of the TAMD41A (in ventilation kit 838763); Volvo’s record also lists the TAMD41B and P-A. According to Volvo’s instruction book, later engines have no such filter.
Alternator V-belt	`966978`^{58,59,60,61,62,63}replaces 958359	—	All TAMD41 versions (A to P) and the TMD41, AD41 and D41; the catalogue shows it in both the alternator and the circulation pump drive.
Thermostat	`3831424`^64,65	—	Thermostat kit, 81 °C, for the TAMD41H-A, H-B and P-A: the same kit in both positions, so two per engine. The H/P breakdown shows 876128 and 875849 in brackets as earlier numbers, but the A/B/D records show no successor, so both generations are listed here.
Thermostat	`876128`^66,67,68,69	—	Thermostat kit, 81 °C, for the TAMD41A, B and D (also TMD41, AD41); the second position takes the vented thermostat 875849.
Thermostat	`875849`^66,67,68,70	—	Second thermostat, 81 °C, with air-venting valve on the TAMD41A, B and D; fitted together with 876128.
Thermostat gasket	`416033`^66,64,71	—	Sealing ring, one per thermostat (two per engine), all versions.
Anode (engine)	`838929`^{72,73,74,75,76}	—	Zinc anode of the TAMD41A and early TAMD41B: one in the heat exchanger (marked “early type” on the B) and one in oil cooler 838968 up to serial no. 2204120607. Later B, D, H and P engines have a plug in these positions.
Exhaust manifold gasket	`876144`^{77,78,79,80,81}	—	Gasket kit, all TAMD41 versions (and TMD41, AD41, D41); the catalogue lists three per engine.
Exhaust elbow (turbo outlet)	`859963`^{82,78,79,80,83}	—	For the TAMD41B (not keel-cooled), D, H-A, H-B, P and P-A; the water-injected exhaust pipe after it is listed separately. Volvo’s record also says “for SP-A2 or DP-A2 drive units” because the AD41 uses the same elbow.
Exhaust mixing elbow	`877415`^77,84,85,86replaces 858481	—	Wet exhaust bend of the TAMD41A (and of the TAMD41B and M-A with a wet exhaust line); gasket 859052, overhaul kit 859607.
Exhaust mixing elbow	`3581406`^80,87,88,89replaces 876823replaces 877067	—	Water-injected exhaust pipe of the TAMD41H-A, H-B, P and P-A. Chain 876823 → 877067 → 3581406.
Exhaust mixing elbow	`861620`^79,90replaces 861306	—	Water-injected exhaust pipe of the TAMD41D.
Turbocharger gasket kit	`3582563`^91,92,93	—	Turbo connector kit (gaskets and seals for the turbo connections), all TAMD41 versions per Volvo’s record and the overhaul kit lists. Volvo notes that the turbo’s air-venting thread changed from M10 to M12. The H/P repair kit list also shows an older connector kit, 876312.
Turbocharger gasket kit	`3582676`^50,94	—	For the TAMD41H-A, H-B, P and P-A (also on the 31-series P versions and the KAD/KAMD43).
Turbocharger	`838697`^{48,95,49,50,96,97}	—	For the TAMD41A, the TAMD41B up to serial no. 2204142270 and the TAMD41P/L/M (exchange unit 3802052). Other versions: H-A 838695 (exchange unit 3802051), H-B 3581191, B medium duty and D 860916 (exchange unit 3802060), later B 860918.
Aftercooler gasket kit	`877386`^91,98,99	—	All TAMD41 versions (the TMD41 and D41 have no aftercooler); also part of the overhaul kits.
Aftercooler core (charge-air cooler)	`859362`^{100,101,102,103}replaces 838718replaces 858947	—	For the TAMD41A, B and M-A. Chain 838718 → 858947 → 859362; Volvo notes 859362 is for housing 858948 or 859199.
Aftercooler core (charge-air cooler)	`861553`^104,105replaces 861049	—	For the TAMD41D.
Aftercooler core (charge-air cooler)	`3582598`^106,107	—	For the TAMD41H-A, H-B and P-A; the breakdown shows the D insert 861553 in brackets as an earlier number.
Fuel injector	`859494`^{108,109,91,110}	—	Six per engine. TAMD41B and M-A, and the TAMD41M-A/P-A with product nos. 869028, 869029 or 869053 (sub-unit overhaul kit). Nozzle 859782.
Fuel injector	`838665`^111,112	—	Six per engine. TAMD41A (also TMD41A, AD41A). Nozzle 858358.
Fuel injector	`861103`^113,98,114	—	Six per engine. TAMD41H-A, and the TAMD41P-A with product nos. 869030, 869031, 869032 or 869036 (sub-unit kit 877728); the breakdown also lists the AD41D and AD41P-A. Nozzle 861117. Check the product number on the engine plate.
Valve cover gasket	`838654`^{115,116,117,118,119}	—	Gasket for the small valve covers, three per engine, all versions A to P.
Valve cover gasket	`838653`^{115,116,117,118,120}	—	Gasket for the large valve cover, all versions A to P.
Gasket set	`3583787`^91,92,121	—	Decarbonising (top-end) gasket kit, all TAMD41 versions per Volvo’s record and the overhaul kit lists; the H/P repair kit list also shows the earlier kit 876104.
Gasket set	`876774`^91,92,122replaces 876362	—	Complete overhaul gasket kit, all TAMD41 versions.
Coolant pump	`23059414`^{62,123,124,125}replaces 3580765replaces 3809412	—	Circulation pump of the TAMD41H-A, H-B, P and P-A. When 3580765 was replaced by 3809412, Volvo added pulley 3588383 and four screws 946173; 3809412 is now 23059414. Earlier versions have other pumps (A 838699, B 859127/860788, D 860452).
Water pump repair kit	`876794`^{62,92,126,127,128}	—	Repair kit for the original H/P circulation pump 3580765; the current pump 23059414 takes repair kit 23125501.

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

Service intervals

Task	Interval
First service	First oil and filter change after 20–50 h on a new or rebuilt engine (A book: after 20 h)^129,130
Engine oil change	Every 100 h or at least every 12 months (A, B and D books: every 100 h or once a season)^129,130
Oil filter	With every oil change (100 h or 12 months); the A book says every 200 h, the B and D books every 100 h^129,130
Fuel filter	Every 200 h or at least once a year (A/B books: at least once a season)¹²⁹
Fuel pre-filter	Element with the fuel filter (200 h or yearly); drain water every 14 days¹²⁹
Air filter	Every 200 h or at least once a year (A/B books: once a season)¹²⁹
Crankcase ventilation	Change the ventilation filter every 200 h or once a season (A book; later engines have no filter)¹³⁰
Raw water impeller	Check every 200 h or at least once a year; replace if damaged¹²⁹
Sea water strainer	Clean every 14 days, more often in weedy water¹²⁹
V-belt check	Check every 14 days, tension every 200 h; the A/B books say replace once a year (about 10 mm deflection)¹²⁹
Coolant change	Every 2 years with an antifreeze (glycol) mix; every year if the system holds only a corrosion-inhibitor mix¹²⁹
Valve clearance	Every 200 h, 0.40 mm cold — workshop¹²⁹
Turbocharger check	Every 200 h — workshop¹²⁹
Injectors	Check opening pressure, spray pattern and leakage every 600 h — workshop¹³⁰
Anode	Zinc anodes (A, early B): check at least twice a season, replace when half worn¹³⁰
Gearbox oil change	Check the level every 14 days; change every 200 h or at least once a year (HS gears: oil filter too)¹²⁹

Hours or time, whichever comes first. The schedule follows Volvo Penta’s operator’s manual for the 31–43 series (2006), which covers the TAMD41H, M and P; where the older books for the A, B and D versions differ, the row says so.

Specifications

Cylinders	6, in-line, four-stroke¹³¹
Displacement	3.59 l^131,129
Bore × stroke	92.0 × 90.0 mm¹³¹
Injection	Direct injection¹³¹
Firing order	1-5-3-6-2-4^131,129
Aspiration	Turbocharger with sea-water-cooled aftercooler (charge-air cooler); TMD41: turbo without aftercooler^132,131
Cooling	Fresh-water circuit with heat exchanger and two thermostats; fresh-water-cooled turbo and exhaust manifold; gear-driven sea-water pump; keel-cooled versions also catalogued¹³²
Power	TAMD41: 147 kW (200 hp) at the crankshaft, 144 kW (195 hp) at the propeller shaft, at 3800 rpm (Volvo Penta brochure, 1992). TMD41: 110 kW (150 hp) / 107 kW (145 hp). Ratings for the individual versions (A to P) were not found in a Volvo source; the owner’s manuals refer to the sales literature.¹³²
Rated speed	3800 rpm (1992 brochure)¹³²
Idle speed	600–700 rpm (A, B, D); 625–725 rpm (H, M, P)^131,129
Engine oil capacity	10.5 l without filter, 11.0 l with filter; 11.0 / 11.5 l with the engine at 15° rake (all versions A to P)¹²⁹
Engine oil grade	SAE 15W-40. A/B books: API CD; 1993–1999 books: VDS or API CD; 2006 book: VDS together with ACEA E3 or with API CG-4 (CI-4 accepted)¹²⁹
Oil pressure	Hot engine: about 1.5 kp/cm² at idle (A book: 2.2–3.0), 4.2–5.0 kp/cm² at full speed^131,129
Coolant capacity	19 l (older manuals) / 20 l (2006 manual)^133,129
Thermostat opens at	81 °C, fully open at 94 °C (two thermostats); normal running temperature 75–90 °C¹²⁹
Coolant	2006 book: 40 % Volvo Penta coolant (ethylene glycol) and 60 % water all year round, frost protection to about −28 °C, never plain water; the 1993 book names Volvo Penta type 90 coolant or a 50/50 antifreeze mix^129,134
Weight	approx. 465 kg with MS4A/MS4B reverse gear (TMD41 with MS4: 455 kg)¹³¹
Alternator	14 V / 50 A (A, B); 14 V / 60 A or 28 V / 60 A (D, H, P, per catalogue); the 2006 book lists 14 V / 60 A and 24 V / 50 A^61,129
Gearbox	A: MS4A (1.91 or 2.6:1) or PRM401 (1.9, 2.9 or 3.95:1, medium duty); B: MS4B (1.91 or 2.6:1), PRM402 (1.9, 2.9 or 3.95:1) or HS1A¹³¹
Gearbox	H and P (catalogue): connecting parts for HS1A, HS63A, HS63V and PRM402 (H) and for Borg-Warner gears (P)¹³⁵
Fuel	Diesel to EN 590 or ASTM D975 No. 1-D / 2-D; very low-sulphur “city diesel” can cost about 5 % output¹²⁹
Valve clearance (cold)	0.40 mm intake and exhaust (all versions)¹²⁹

Good to know

Read the number on your sea-water pump before ordering an impeller kit: the TAMD41 had at least five pump numbers (standard and SOLAS, early and late), which take three different kits (21951356, 21951366 or the older 875593).^24,34
The engine has two 81 °C thermostats. On the A, B and D one of them (875849) has an air-venting valve: put it back in its own position, and fit a new sealing ring 416033 on each thermostat.⁶⁷
The aftercooler is cooled by sea water, so a leaking core can let sea water into the intake air. Whenever it is opened, look for water or salt on the charge-air side and fit the gasket kit 877386.^91,132
Many parts change at a serial number (sea-water pump of the B at 2204141572/2204141573, new air filter on the H/P from 2204157886). Note the serial and product number from the engine plate before ordering.^43,50
For lay-up, take the impeller out of the sea-water pump and keep it in a plastic bag; refit it before the engine runs again.¹³³
Volvo’s orange VCS-2 coolant mixes with VCS but not with the green G48 coolant that older engines still need. Find out which one is in the engine before topping up.¹³⁶

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Sources

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