1140251 Gasket | Genuine Volvo Penta Part

🔧 Product Description

Genuine Volvo Penta gasket 1140251, a fuel system sealing component used at joint faces within the fuel supply and injection circuit. It is specified across the MD22, TMD31, TAMD41 and KAMD42 families of marine diesel engines.

🚤 Compatibility

• Engine Family: AD, D, TMD, MS, BB, HS, TAMD, MD, KAD, KAMD
• HP Range: Approximately 50-260 HP
• Year Range: Approximately late 1980s - early 2000s

Full model list at the end of this description.

⚙️ Key Features

• OEM Volvo Penta part number 1140251
• System group: Fuel System
• Fits MD22, TMD22, AD31, TMD31, TAMD31, AD41, TMD41, TAMD41, TAMD42, KAD42 and KAMD42 series marine diesel engines, plus associated 740A/BB740A and MS/HS driveline applications
• Supplied as a genuine Volvo Penta replacement part with no superseding part number
• Engine type: Volvo Penta mechanically injected marine diesel and selected petrol installation

🔌 Function

The gasket seals the mating surfaces of a fuel system connection to prevent fuel leakage and stop air being drawn into the fuel circuit. It compresses on assembly to take up minor surface irregularities and maintain a tight joint under fuel pressure and engine vibration.

⚠️ Common Signs of Failure

• Fuel weeping, staining or dripping at the joint face
• Hardened, cracked or flattened gasket material found on disassembly
• Hard starting, rough running or surging caused by air entering the fuel circuit
• Loss of fuel pressure or inability to hold prime
• Persistent leakage after retightening fasteners, indicating the gasket is no longer able to seal

🛠️ Service Notes

• Fit a new gasket every time the joint is disturbed — a gasket takes a permanent set once it has been torqued and will not seal reliably a second time
• Scrape both faces back to clean bare metal, keeping the blade at a shallow angle so it lifts the old material without gouging the surface, and use a plastic scraper on aluminium castings
• Check the faces for flatness, cracks and corrosion pitting, and make sure no old gasket, carbon or hardened sealant is left in the corners or around the bolt holes
• Fit the gasket dry unless the workshop manual for your engine calls for a sealant, and then only the type it specifies — surplus sealant squeezes out into oil, coolant and fuel passages
• Draw the fasteners down progressively in the sequence and to the torque given in the manual for your engine, and recheck after the first heat cycle where the manual asks for it

🔄 Supersession & Cross Reference

OEM / Related Numbers

• 860930 - Related filter bowl
• 828958 - Related complete fuel filters
• 877762 - Related complete fuel filters
• 861014 - Related filter insert
• 1140250 - Related upper housing gasket
• 1140252 - Related element gasket

Other-Brand OEM Numbers

• CAV-style bowl gasket sets may provide a dimensional substitute only when matched directly to bowl 860930

📦 Condition

• Genuine Volvo Penta part
• Brand new
• Supplied in original or equivalent packaging

🔎 Full Model Compatibility

Typically suits:

• Volvo Penta AD41P-B, AD41B, AD41D, AD41, AD41A, AD41BJ
• Volvo Penta AD31, AD31B, AD31D, AD31D-A, AD31XD
• Volvo Penta MD22, MD22A, MD22L, MD22P
• Volvo Penta TAMD41B, TAMD41D, TAMD41M-A, TAMD41A
• Volvo Penta D41, D41B, D41D
• Volvo Penta TAMD31A, TAMD31B, TAMD31D
• Volvo Penta TMD22A, TMD22B, TMD22P-C
• Volvo Penta TMD31A, TMD31B, TMD31D
• Volvo Penta TMD41A, TMD41B, TMD41D
• Volvo Penta KAD42A, KAD42B
• Volvo Penta KAMD42A, KAMD42B
• Volvo Penta BB740A
• Volvo Penta HS1A
• Volvo Penta MD31A
• Volvo Penta MS2B-A
• Volvo Penta MS5B
• Volvo Penta 740A
• Volvo Penta TAMD22P-B
• Volvo Penta TAMD42B