Bukh · Inboard diesel

Bukh DV24

The Bukh DV24 is a two-cylinder, 0.964-litre four-stroke marine diesel from Bukh in Denmark, rated 24 hp at 3600 rpm. It keeps the DV20’s 85 × 85 mm bore and stroke but has direct injection; Bukh said this cuts fuel consumption by 12–15 % against the pre-chamber principle and makes cold starts easier. It came as the DV24 ME with a reverse-reduction gear and the DV24 SME with Bukh’s own saildrive, both normally raw-water cooled through a thermostat; the keel-cooled DV24 RME lifeboat engine is still built, and the DV29 and DV32 are close relatives. With the Bukh DV20 it shares the oil filter and the cooling-side wear parts (impeller 610G0102 with its cover gasket, thermostat gasket, block anode and its copper ring), while injector, lift pump, V-belt, alternator, thermostats, head gasket and gearbox are different; the three-cylinder DV36 belongs to another parts family. The Bukh documents behind this page date from 2001 to 2019, so very early DV24s may differ: order by engine number.

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

Manuals & documents

The links go to Bukh’s own documents — some as archived copies of pages the maker has since taken down. We host no manuals or drawings.

Owner’s handbook DV24 ME, publ. no. 009W0827-R05 (2013) Operation manual sw10696.smartweb-static.com · PDF · EN
Spare parts list DV24 ME, publ. no. 009W1807-R07 (2014), raw-water, heat-exchanger and keel cooling (Danish, English, German) Parts catalogue sw10696.smartweb-static.com · PDF · DA · EN · DE
Owner’s handbook DV24 RME lifeboat engine, publ. no. 009W4826-R19 (2019) Operation manual sw10696.smartweb-static.com · PDF · EN
Spare parts list DV24 RME, publ. no. 009W1806-R17 (2018) (Danish, English, German) Parts catalogue sw10696.smartweb-static.com · PDF · DA · EN · DE
Bukh download page for operator manuals (all DV engines) Manual portal bukh.dk · EN
Bukh download page for spare parts lists (all DV engines) Manual portal bukh.dk · EN
Bukh DV24 ME technical data (bukh.dk, 2001) Archived maker page web.archive.org · EN
Bukh DV24 SME technical data (bukh.dk, 2001) Archived maker page web.archive.org · EN

Wear parts & part numbers

Part	OEM number	Also fits	Note
Raw water pump impeller	`610G0102`^2,1	Johnson Pump `09-808B-1`¹	Impeller of the direct-cooling raw water pump 610G0030; the same number as on the DV20 from engine no. 97549. The Johnson number comes from one source only: Bukh Bremen, a Bukh dealer, lists 610G0102 with “new number 09-808B-1”, which is Johnson Pump’s impeller kit for its F35 pump; no Bukh parts list names it.
Pump cover gasket	`610G0103`^2,3	—	Cover gasket of the direct-cooling raw water pump; the same as on the DV20. The pump also has two shaft seal rings 561B0127 and seals to the engine with O-ring 560B1032.
Raw water pump	`610G0030`^2,4	Johnson Pump `F35B-9`⁴	Complete pump for direct cooling in the 2014 DV24 ME list (wear plate 610G0032, cam 610G0106, shaft seal rings 561B0127 ×2, O-ring to the engine 560B1032). AWN sells the Johnson F35B-9 as a replacement for Bukh pump 610G0100 on DV10/18/20/24 ME/SME with direct cooling and says to order O-ring 560B1032 and two clamps 01-43238 with it, so older DV24s may carry the 610G0100.
Raw water pump	`610G0120`²	—	Raw water pump on engines with heat exchanger; the same number as on fresh-water-cooled DV20s. It seals to the engine with O-ring 560B1032; the DV24 list does not break it down into parts.
Engine oil filter	`610J0050`^2,5,6	—	Spin-on throw-away filter, about 76 × 92 mm; the same on DV10, DV18, DV20, DV29 and DV32 (DV36 and DV48: 610J0200).
Fuel filter (engine)	`610D0201`^2,5,7	—	Throw-away cartridge, about 80 × 110 mm, with drain screw; the complete filter with head is 610D0200. According to Bukh Bremen it also fits DV29/32/36/48 and late DV10 ME (from no. 207292) and DV20 ME (from no. 104271).
Air filter	`008E7310`^2,5	—	Washable wire-gauze air inlet filter and silencer.
Fuel lift pump	`610C0120`^2,5,8	—	Sealed diaphragm pump driven by the camshaft, with hand-priming lever; it cannot be taken apart, so Bukh recommends a water and dirt separator ahead of it. Gasket 000E4784. Not the DV20 pump (610C0080); the DV36 uses the same one.
Fuel injector	`610B9220`^2,5,9,10,11	—	Complete nozzle holder, two per engine; DV24 and DV29 (DV32/36/48: 610B9250), not the DV20 part. Tighten to 59 ± 3 Nm.
Injector sealing washer	`522C3080` · `522C3082`^2,5,10,11	—	Copper washer under the injector: 522C3080 from engine no. 121218/8395, 522C3082 up to no. 121217/8394 according to Bukh Bremen (the 2014 ME list shows 522C3080, the 2018 RME list 522C3082).
Alternator V-belt	`542A0611`^2,5,12	—	10 × 1125 mm (Roflex 10 × 1125 LA), for DV24, DV29 and DV32; not the DV20 belt (542A0213).
Thermostat	`008E6577`²	—	Thermostat for direct raw-water cooling, under the four-nut top cover of the housing (cover 008E7710); not the DV20 part.
Thermostat	`008E8530`^2,5	—	Thermostat of the fresh-water circuit on heat-exchanger engines, also on the keel-cooled DV24 RME.
Thermostat gasket	`000E2584`^2,5	—	For all cooling versions; the same as on the DV20.
Anode (engine)	`008E0451`^2,5,8	—	Zinc rod complete with hexagon plug, screwed in on the right at the rear of the crankcase; the same as on the DV20. The zinc rod alone is 000E0450.
Anode plug gasket	`522C3025`²	—	Copper sealing ring A 17 × 21 DIN 7603 under the block anode; the same as on the DV20.
Coolant pump	`008E4727`^2,5	—	Belt-driven circulation pump on heat-exchanger and keel-cooled engines; only supplied complete.
Heat exchanger tube stack	`610E0123`²	—	Inside heat exchanger 008E4748, sealed with two O-rings 560M1075.
Cylinder head gasket	`000E7671`^2,5,8	—	Not the DV20 gasket (000D9687). Head bolts 118 ± 5 Nm; retighten them after the first 25 h.
Valve cover gasket	`000E7668`^2,13	—	DV24 to DV32.
Gasket set	`032D4215`^2,14	—	Complete engine gasket set for DV24, DV29 and DV32 (DV20: 032D4201).
Gasket set	`032D4216`^2,15	—	Top-end (valve-grinding) gasket set for DV24 to DV32, with the head gasket (DV20: 032D4202).
Exhaust elbow gasket	`000D9762`^2,5	—	Gasket between the cylinder head (with its integral water-cooled manifold) and the exhaust outlet 008E2484.
Exhaust mixing elbow	`022D4311`¹⁶	—	Water-cooled exhaust bend for the DV24. One source (Bukh Bremen); not in the 2014 parts list, so check the engine number with the dealer.
Spares kit	`030D0609`¹⁷	—	Bukh “spare parts kit DV24”. One source (Bukh Bremen), which does not list the contents.

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	After the first 25 h (until then at most 80 % load, about 3200 rpm): change engine and gear oil, retighten the cylinder head, check the V-belt⁸
Oil level check	Engine and gear oil every 14 days or 25 h⁸
Engine oil change	Every 150 h or yearly, first time after 25 h⁸
Oil filter	Every 150 h or yearly⁸
Gear oil change	Baysan M60: first after 25 h, then every 150 h or yearly (lubrication table; the gearbox section of the same handbook says every 250 h or yearly)⁸
Saildrive oil	Every 150 h or yearly, first time after 25 h⁸
Fuel filter	Cartridge every 300 h (yearly in the check list), at once if water is suspected; bleed the system afterwards⁸
Air filter	Wash the wire-gauze filter in petrol and blow it out with compressed air every 300 h; renew it every 5 years⁸
V-belt check	Adjust every 150 h (check monthly): 8–10 mm deflection under firm thumb pressure⁸
Raw water impeller	Renew at each annual launch, or take it out over winter and store it separately⁸
Anode	Take it out and inspect it 2–3 times a year; renew when more than 50 % is corroded⁸
Coolant change	Heat-exchanger engines: check the frost protection yearly; change coolant and antifreeze at least every 3 years⁸
Thermostat	Renew every 5 years⁸
Valve clearance	Check and adjust yearly⁸
Shaft seal (stuffing box)	Bukh flexible stern tube: lubricate the stuffing box every 14 days or 25 h; renew its three seal rings and the rubber hose every 3 years⁸
Saildrive diaphragm	Test the water alarm between the two diaphragms twice a year (bridge terminals 1 and 2; the buzzer must sound)⁸

From the maintenance text, check list and lubrication table of Bukh’s owner’s handbook for the DV24 ME (2013); hours or time, whichever comes first. The handbook contradicts itself on the Baysan gear oil (every 150 h in the lubrication table, 250 h in the gearbox section) and on the idle speed (900–1200 rpm in the technical data, 800–1000 rpm in the starting section). The DV24 RME lifeboat engine follows the schedule in its own handbook.

Specifications

Versions	DV24 ME (reverse-reduction gear, shaft drive), DV24 SME (Bukh saildrive), DV24 RME (keel-cooled lifeboat engine with Newage PRM125 gear)^8,18,19
Cylinders	2, in-line, four-stroke, 2 valves per cylinder⁸
Combustion	Direct injection (the DV20 has a pre-chamber)^8,20
Displacement	0.964 l⁸
Bore × stroke	85 × 85 mm⁸
Compression ratio	18.5:1⁸
Compression pressure	47 bar, stated at 3600 rpm⁸
Power	24.0 hp (17.7 kW) at 3600 rpm; 22.4 hp at 3000 rpm, 17.9 hp at 2400 rpm, 15.8 hp at 2000 rpm (continuous rating to ISO 3046)⁸
Maximum torque	5.7 kpm (about 56 Nm) at 2000 rpm⁸
Rated speed	3600 rpm; with the propeller at full load 3300–3600 rpm, unloaded at least 3700 rpm⁸
Idle speed	900–1200 rpm (technical data and check list; the starting section of the same handbook says 800–1000 rpm)⁸
Direction of rotation	Clockwise, looking at the flywheel⁸
Max. installation angle	12° fore and aft, 25° continuous heel^8,20
Cooling	Standard: direct raw-water cooling with thermostat, 50–75 °C; impeller pump max. 11 l/min. Option: heat exchanger with belt-driven circulation pump, 70–95 °C, which Bukh recommends above 500 h a year. DV24 RME: keel cooling^8,18
Coolant capacity	3.25 l with direct cooling; 4.8 l with heat exchanger (30–50 % antifreeze)⁸
Engine oil capacity	3.5 l including filter⁸
Engine oil grade	API CC or CD (CD for hard use or fuel with more than 1 % sulphur); SAE 10 or 10W-30 below +5 °C, SAE 20 or 15W-40 from +5 to +25 °C, SAE 30 or 15W-40 above +25 °C⁸
Oil pressure	2–4.5 bar with the engine warm, minimum 1 bar at idle⁸
Gearbox	ME: reverse-reduction gear; the 2013 handbook names the Baysan M60, 2.94:1 ahead and 1.95:1 astern (the 2014 parts list also has a 2.5:1 gearbox), Bukh’s 2001 data give 3:1. SME: Bukh saildrive, 2.25:1. RME: Newage PRM125^8,2,20,18
Gearbox oil	Baysan M60: 0.5 l ATF (Dexron II or III), oil temperature max. 120 °C⁸
Drive oil	Bukh saildrive: 3.3 l, up to the upper dipstick mark; the handbook says to use the same grade as for the marine gear⁸
Fuel	Diesel to BS 2869 Class A; sealed, camshaft-driven diaphragm lift pump (350 mbar static); spin-on throw-away filter⁸
Injection pressure	210 bar⁸
Injection timing	14.7° before TDC (50 mm on the rim of the 391 mm flywheel)⁸
Valve clearance (cold)	Inlet 0.25 mm, exhaust 0.30 mm (cold engine)⁸
Tightening torques	Cylinder head 118 ± 5 Nm, connecting rods 69 ± 3 Nm, flywheel and counterweights 81 ± 3 Nm, flexible coupling 150 ± 3 Nm, injector 59 ± 3 Nm⁸
Fuel consumption	5.8 l/h at full load, 3.3 l/h cruising (Bukh data, 2001)²⁰
Battery	12 V, 88 Ah⁸
Starter motor	12 V, gear-driven, 1.2 kW (1.3 kW in Bukh’s 2001 data), Bukh 612A1650; engine stop by solenoid^8,2,20
Alternator	Belt-driven, 14 V, 50 A, 700 W (Bukh 612H0520; the DV20 has 612H0100)^2,8,20
Dry weight	210 kg net (ME); 220 kg (SME, Bukh data 2001)^8,19

Good to know

Note the engine type and serial number before you order: the serial number is on the port side, and Bukh asks for both with every order. Some parts depend on it, such as the copper washer under the injector (522C3080 or 522C3082).^8,10,11
Changing the impeller is simple: drain the water from the engine, take off the pump’s front cover and pull the impeller out with pliers or two screwdrivers. If water drips from the drain hole under the pump flange, the seal inside the pump is leaking; replace it soon.⁸
On the DV24 a faulty thermostat closes, so the engine runs too hot (blue lamp and buzzer); the DV20’s bellows thermostat fails open instead. The insert comes out after undoing the four nuts on the housing’s top cover; if you ever run without it, the cooling water shunt must be shut off.⁸
Fuel filter: drain the old cartridge through its bottom screw, fill the new one with clean diesel and screw it on hand-tight plus about half a turn. Then bleed at the bleed screw with the lift pump’s hand lever and loosen the injector pipes while cranking. The lift pump is sealed, so Bukh recommends a water and dirt separator ahead of it.⁸
For winter, a raw-water-cooled DV24 has two drain plugs: above the oil filter on the starboard side and under the exhaust manifold. Clear the holes with a wire and run the engine for 30 seconds; Bukh says this does not harm the impeller. On heat-exchanger engines drain the raw-water side by taking off the pump cover and keep 30–50 % antifreeze in the fresh-water circuit.⁸
Bukh recommends a BERA 2B hull zinc for the DV24, clamped to the stern bearing so that it has electrical contact with the propeller; check it whenever the boat is ashore, and fit two BERA 2B or one BERA 1 if it wears fast. Never run the starter for more than 10 seconds, then pause for at least 30 seconds.⁸

On the marketplace

Browse the category on boatparts.app

Looking for a part for the Bukh DV24? Post a wanted ad in the app — it is free, it sits on the live map, and boaters nearby who have the part aboard can answer.

Got spares you no longer need? List them in a minute. No commission, ever.

Get the app

Sources

Bukh is a trademark of its owner; boatparts.app is not affiliated with it. Part numbers are quoted for identification only. Spotted an error? Write to mail@boatparts.app.