11030779 Gasket | Genuine Volvo Penta Part

🔧 Product Description

This is a genuine Volvo Penta engine gasket from the Engine system group, used to seal a machined joint face between mating engine components and maintain a leak-free connection under heat and pressure. It is the current replacement part in a long-running supersession line, superseding earlier gasket 865342, and covers the TD, TID, TWD, TAD and TAMD 70-series and 730/740-series engine families. Supplied as a single gasket with a net weight of 0.64 kg.

🚤 Compatibility

• Engine Family: TWD, TID, TAMD, TD, TAD
• HP Range: Approximately 150-300 HP
• Year Range: Approximately 1980s - 2000s

Full model list at the end of this description.

⚙️ Key Features

• OEM Volvo Penta part number 11030779
• System group: Engine
• Net weight 0.64 kg
• Supersedes earlier gasket part number 865342
• Current part in a supersession line running back through 864485, 424919, 424601 and 421025
• Fits TD, TID, TWD, TAD and TAMD 70-series and 730/740-series marine and industrial diesel engines
• Engine type: Volvo inline 6-cylinder 7-litre industrial diesel

🔌 Function

The gasket forms a compressible seal between two rigid engine mating surfaces, preventing the escape of oil, coolant, fuel or combustion gases at the joint. It also compensates for minor surface irregularities so the joint stays tight through heat cycling and vibration.

⚠️ Common Signs of Failure

• Visible oil, coolant or fuel seepage or staining at the joint face
• Loss of coolant or oil level with no other identifiable source
• Hardened, cracked, flattened or torn gasket material found on inspection
• Loss of pressure or compression at the sealed joint, or audible leakage
• Corrosion or deposit build-up around the mating surfaces indicating a long-term weep

🛠️ 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

• 11030779 → Supersedes 865342 → Supersedes 864485 → Supersedes 424919 → Supersedes 424601 → Supersedes 421025

OEM / Related Numbers

• 865342 earlier number superseded by this part
• 864485 earlier number superseded by this part
• 424919 earlier number superseded by this part
• 424601 earlier number superseded by this part
• 421025 earlier number superseded by this part
• 7421025 related reference

Aftermarket / Verified Equivalents

• SLP: EPL-601
• Heavy-equipment gasket suppliers: 865342 replacement

📦 Condition

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

🔎 Full Model Compatibility

Typically suits:

• Volvo Penta TAMD74P-A, TAMD74P-B, TAMD74A, TAMD74C-A, TAMD74C-B, TAMD74L-A, TAMD74L-B
• Volvo Penta TWD710G, TWD710P, TWD710PB, TWD710V
• Volvo Penta TAD730G, TAD730P, TAD730V
• Volvo Penta TAMD73P-A, TAMD73WJ-A
• Volvo Penta TD730ME, TD730VE
• Volvo Penta TWD740GE, TWD740VE
• Volvo Penta TAD740GE
• Volvo Penta TAD741GE
• Volvo Penta TAMD71B
• Volvo Penta TAMD75P-A
• Volvo Penta TD71A
• Volvo Penta TD710G
• Volvo Penta TID71A
• Volvo Penta TWD730ME
• Volvo Penta TWD731VE