21158077 Gasket | Genuine Volvo Penta Part

🔧 Product Description

Genuine Volvo Penta sealing gasket used with ACP hull fitting 21155192 in IPS Active Corrosion Protection installations. Four gaskets are used in the documented twin-installation arrangement, with quantity changing according to the number of hull fittings in the complete ACP system.

🚤 Compatibility

• Engine Family: D, IPS
• HP Range: 260-480 HP

Full model list at the end of this description.

⚙️ Key Features

• Genuine Volvo Penta ACP hull-fitting gasket
• Used with hull fitting 21155192
• Four used in the documented twin IPS installation
• Works with shim 21157128 and lock nut 971089
• Renew whenever the through-hull fitting is removed or disturbed
• Engine type: Volvo Penta IPS marine propulsion with Active Corrosion Protection

🔌 Function

Forms the watertight seal between the ACP hull fitting and the fibreglass hull / installation hardware.

⚠️ Common Signs of Failure

• Water seepage or staining around the ACP fitting
• Flattened, torn or chemically damaged gasket
• Loose hull fitting or reduced clamp load
• Corrosion or contamination at the ACP electrode connection
• Repeat leakage caused by incorrect shim stack or hull-surface preparation

🛠️ 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

• 21155192 - ACP hull fitting
• 21157128 - hull-fitting shim
• 971089 - lock nut
• 21269808 - spacer screw
• 21174473 - protection kit
• 21174476 - zinc anode kit
• 22037078 - complete ACP kit references
• 22564286 - complete ACP kit references

📦 Condition

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

🔎 Full Model Compatibility

Typically suits:

• Volvo Penta D6-330D-E, D6-370D-E, D6-330D-C, D6-370D-C, D6-330D-D, D6-370D-D, D6-330D-F, D6-370D-F, D6-300D-F, D6-310D-D, D6-310D-C, D6-310D-E, D6-300D-G, D6-340D-G, D6-380D-G, D6-440D-G, D6-480D-G, D6-435D-D, D6-435D-E, D6-435D-F, D6-435D-C
• Volvo Penta D13C2-B MP, D13C2-A MP, D13C4-A MP, D13B-L MP, D13B-G MP, D13B-K MP, D13B-C MP, D13C6-A MP, D13C4-B MP, D13C5-B MP, D13C5-A MP, D13C8-B MP
• Volvo Penta D4-260D-C, D4-260D-D, D4-260D-E, D4-260D-F, D4-300D-C, D4-300D-D, D4-300D-E, D4-300D-F
• Volvo Penta D11C2-A MP, D11C4-A MP, D11B4-A MP, D11B2-A MP, D11A-C MP, D11A-D MP, D11A-E MP
• Volvo Penta IPS-A, IPS-B, IPS-F, IPS-C, IPS-D, IPS-E
• Volvo Penta D8A2-A MP, D8A4-A MP, D8A8-A MP
• Volvo Penta IPS2-C, IPS2-A, IPS2-B
• Volvo Penta 8.1IPSCE-MF, 8.1IPSCE-P, 8.1IPSCE-Q
• Volvo Penta IPS15-B, IPS15-A
• Volvo Penta IPS3-C, IPS3-A
• Volvo Penta IPS10-A
• Volvo Penta IPS20-D
• Volvo Penta IPS30-D