Genuine OEM replacement parts for MAN marine diesel engines. Covering R6, V8, V10, V12 LD series engines used in sport fisherman yachts and motor yachts from 40 to 80ft.
✓ OEM Genuine Parts✓ Fast Shipping✓ R6 · V8 · V10 · V12 Series✓ Expert Support
⚠️ Prices shown are indicative and subject to change. All prices are in USD and exclude shipping, tax, and customs duties. Contact us to confirm current pricing and availability before ordering. Not all parts are stocked — we will advise on lead times for your specific engine model.
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Fuel Filters
MAN common rail (CR) and LE series fuel filters. Regular replacement is critical for protecting fuel injectors and preventing common rail pressure issues. Replace primary and secondary filters at every service interval.
OEM
MAN Primary Fuel Filter — Common Rail
# 51.12503.0052
Compatible: All MAN Common Rail (CR) series engines including V8, V10, V12 LD. Primary pre-filter protects the high-pressure fuel pump.
OEM
MAN Secondary Fuel Filter — LE Series
# 51.12503.0099
Compatible: MAN LE series engines (R6-730, R6-800). Secondary fine filter for fuel system protection.
OEM
MAN Secondary Fuel Filter with O-Ring — CRM Series
# 51.12503.0109
Compatible: MAN CRM series engines. Includes O-ring seal. Essential for maintaining fuel system integrity on common rail models.
OEM
MAN Secondary Fuel Filter with O-Ring — LE Series
# 51.12503.0069
Compatible: MAN LE series. Spin-on secondary filter with O-ring. Protects injectors from fuel contamination.
OEM
MAN Secondary Fuel Filter with O-Ring — LE Series
# 51.12503.0073
Compatible: MAN LE series engines. Alternate LE series secondary filter variant. Verify against engine serial number.
OEM
MAN Secondary Spin-On Fuel Filter
# 51.12503.0027
Compatible: MAN LE and D series engines. Spin-on canister design for quick replacement at sea.
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Oil Filters
Genuine MAN oil filters for all marine diesel engine series. Using OEM filters ensures correct bypass valve pressure ratings and filter media quality. Replace at every oil change — typically every 150–250 engine hours.
OEM
MAN Oil Filter Complete — with O-Ring & 3 CU Seals
# 51.05504.0104K
Compatible: MAN V8, V10, V12 LD series. Kit includes filter element, O-ring, and three copper sealing washers. OEM complete kit.
OEM
MAN Oil Filter Complete — with O-Ring
# 51.05504.0096K
Compatible: MAN R6 series engines (R6-730, R6-800 LD). Includes filter element and O-ring seal kit.
OEM
MAN Oil Filter with Seal
# 51.05504.0122
Compatible: Multiple MAN marine engine variants. Includes sealing element. Confirm against engine serial plate before ordering.
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Cooling System — Impellers & Heat Exchanger Caps
Raw water impellers and heat exchanger caps are among the most critical service items on a MAN marine engine. Impeller failure leads rapidly to overheating and serious engine damage. Replace impellers annually or every 200–300 hours minimum — never miss this service.
OEM
MAN Impeller with O-Ring — Large
# 51.06506.0127K
Compatible: MAN V12-1360, V12-1400, V12-1550, V12-1800 LD. Large displacement impeller kit with O-ring. Critical annual service item.
OEM
MAN Impeller with Gasket, Seal & Bolts
# 50.06599.6027K
Compatible: MAN V8 series (V8-900, V8-1000, V8-1200 LD). Complete impeller service kit with gasket, seal, and bolts. Everything needed for the job.
OEM
MAN Impeller with O-Ring
# 51.06506.0106K
Compatible: MAN V10-1100 LD and select V8 variants. Includes O-ring. Verify using engine model plate.
OEM
MAN Impellers with 2 Gaskets
# 50.06506.0091K
Compatible: MAN R6 series (R6-730, R6-800 LD). Twin gasket kit for complete raw water pump service.
OEM
MAN Impeller with 1 Gasket
# 51.06506.0122K
Compatible: MAN V12 LD series. Single gasket raw water impeller kit. Annual replacement strongly recommended.
OEM
MAN Heat Exchanger Filling Cap
# 51.97141.0016
Compatible: MAN R6 and V8 LD series. Standard filling/pressure cap for the freshwater circuit heat exchanger.
OEM
MAN Heat Exchanger Pressure Cap
# 51.97141.0020
Compatible: MAN V10/V12 LD series. Pressure-rated cap for the primary cooling circuit. Replace if coolant loss or overheating occurs.
OEM
MAN Heat Exchanger Filling Cap — Premium
# 51.97141.0022
Compatible: MAN V12-1550, V12-1650, V12-1800 LD. High-pressure variant for large displacement engines.
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Gaskets — Valve Cover
OEM MAN valve cover gaskets for all engine configurations. Oil leaks from valve covers are common on high-hour engines. Always use genuine MAN gaskets to ensure correct compression and long-term sealing. Confirm part number against your engine model plate.
OEM
MAN Valve Cover Gasket
# 51.03905.0165
Compatible: MAN V8 LD series engines. OEM rubber valve cover gasket. Replace whenever the valve cover is removed.
OEM
MAN Valve Cover Gasket
# 51.03905.0155
Compatible: MAN R6 series (R6-730, R6-800 LD). Inline 6-cylinder valve cover gasket.
OEM
MAN Valve Cover Gasket
# 51.03905.0157
Compatible: MAN V10-1100 LD and select V8 models. Verify against engine serial number before ordering.
OEM
MAN Valve Cover Gasket
# 51.03905.0161
Compatible: MAN V12 LD series (V12-1360 through V12-1800). Large V12 valve cover gasket.
OEM MAN V-belts for alternators, seawater pumps, and auxiliary drives. Belt failure at sea can disable charging, cooling, or steering assist. Carry at least one spare set. Inspect at every service interval for cracking, glazing, or fraying.
OEM
MAN V-Belt
# 51.96820.0286
Compatible: MAN V8 LD series alternator / auxiliary drive belt. Check tension and condition every 150 hours.
OEM
MAN V-Belt
# 06.58073.1402
Compatible: MAN R6 series (R6-730, R6-800 LD). Primary drive belt for seawater pump and alternator.
OEM
MAN V-Belt
# 51.96820.0288
Compatible: MAN V10 / V12 LD series. Heavy-duty drive belt for high-displacement engines.
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Specialty Tools
Purpose-built tools for MAN marine diesel service. The right tool prevents damage to precision components and makes service faster and safer, especially in tight engine rooms.
