1378979 Gasket | Genuine Volvo Penta Part

🔧 Product Description

This is a genuine Volvo Penta engine gasket, part number 1378979, supplied within the Engine system group. It provides the sealing joint between mated engine components, maintaining a leak-free interface for fluids and combustion or exhaust pressure. It is the current replacement for the earlier gasket 430133 and carries that part's application coverage across the AQ165, AQ170 and BB165/BB170 petrol engine series.

🚤 Compatibility

• Year Range: Approximately late 1960s-1970s

⚙️ Key Features

• OEM Volvo Penta part number 1378979
• System group: Engine
• Supersedes and replaces earlier part number 430133
• Net weight approximately 0.032 kg
• Fits AQ165, AQ170 and BB165/BB170 series engines
• Engine type: Volvo B30 inline six-cylinder petrol engine
• System type: Front timing-gear cover sealing

🔌 Function

The gasket forms a compressible seal between two machined engine surfaces, compensating for minor surface irregularities so that fluids, gases or pressure cannot escape at the joint. Correct sealing at this interface is essential to maintaining engine operating pressure and preventing leakage.

⚠️ Common Signs of Failure

• Visible fluid weeping, seepage or staining at the joint line
• Loss of coolant, oil or fuel with no other identifiable source
• Hardened, brittle, cracked or crushed gasket material on inspection
• Exhaust or compression leakage audible or detectable at the mating face
• Repeated need to retorque fasteners at the sealed joint

🛠️ 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 Supersession Chain

• 1378979 → Supersedes 430133

OEM / Related Numbers

• 430133 earlier number superseded by this part

Aftermarket / Verified Equivalents

• Skandix: 1015977
• VP Autoparts: B30 timing-cover-gasket replacement
• Classic Volvo parts aftermarket replacement for 430133 / 1378979

📦 Condition

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