21121914 Gasket | Genuine Volvo Penta Part

🔧 Product Description

Genuine sealing gasket used in the connecting-component assemblies of selected Volvo Penta HS25, HS45 and ZF45-1 marine transmissions. It restores the factory seal when the applicable connecting component is removed.

🚤 Compatibility

• Engine Family: TAD, D, TWD
• HP Range: 110-380 HP

Full model list at the end of this description.

⚙️ Key Features

• Documented HS25, HS45 and ZF45-1 application
• Correct OEM gasket profile
• Designed for transmission connecting components
• Resistant to transmission oil and operating temperature
• Replacement recommended whenever the joint is opened
• Quantity varies by assembly, most commonly two

🔌 Function

The gasket seals the connecting-component joint and prevents transmission-oil leakage.

⚠️ Common Signs of Failure

• Oil seepage from the joint
• Gasket material displaced from the flange
• Leak returning after the joint is tightened
• Damaged or corroded mating surface

🛠️ 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

📦 Condition

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

🔎 Full Model Compatibility

Typically suits:

• Volvo Penta D3-220I-G, D3-140I-G, D3-110I-G, D3-150I-G, D3-170I-G, D3-200I-G, D3-110I-H, D3-150I-H, D3-170I-H, D3-200I-H, D3-220I-H, D3-140I-H
• Volvo Penta D4-175I-G, D4-230I-G, D4-270I-G, D4-320I-G, D4-300I-G, D4-230A-G, D4-270A-G, D4-320A-G, D4-145I-G
• Volvo Penta D16C-A MG, D16C-A MH, D16C-B MH, D16C-C MH
• Volvo Penta D8A5-A MH, D8A6-A MH, D8A5-A MG, D8A6-A MG
• Volvo Penta D6-340I-G, D6-380I-G, D6-300I-G
• Volvo Penta TAD1380-82GE
• Volvo Penta TAD1381-85VE
• Volvo Penta TAD1384-85VE-IWP
• Volvo Penta TWD1683VE