18665 Gasket | Genuine Volvo Penta Part

🔧 Product Description

This genuine Volvo Penta gasket is a precision-cut sealing component designed for the specified engine or propulsion-system joint used in the turbocharger oil-feed/return and engine fluid-line banjo joints. It is manufactured to the original Volvo Penta dimensional, material and interface requirements so the serviced assembly retains its designed alignment, sealing, load capacity and operating reliability. In service, it seals a hollow-screw or banjo fluid connection so oil or fuel pressure is retained without seepage. Selection must be confirmed by OEM part number 18665, the exact engine or product model, serial number and installed configuration.

🚤 Compatibility

• Engine Family: D, TAD, AD, TWD, TMD, TAMD, KAD, KAMD
• HP Range: 260-480 HP

Full model list at the end of this description.

⚙️ Key Features

• OEM Volvo Penta part number 18665
• For use with part 966142 - identifies the joint it suits
• Supersedes previous part numbers 876843 and 876833
• Fits D, TAD, AD, TWD, TMD and TAMD series engines
• Quantity varies by assembly, most commonly one
• Also supersedes Volvo part numbers 864881 and 876702

🔌 Function

Seals a hollow-screw or banjo fluid connection so oil or fuel pressure is retained without seepage. Remove all old gasket material without damaging the mating faces, check flatness and corrosion, and tighten the assembly in the specified sequence.

⚠️ Common Signs of Failure

• Seepage or dripping at the joint
• Gasket hardened, brittle or torn on removal
• Compression set or crushed sections
• Fluid staining around the joint face
• Unexplained fluid loss from the assembly

🛠️ 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

• 18665 → Supersedes 876843

OEM / Related Numbers

• 876727 overhaul/service set
• 876371 gasket set

📦 Condition

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

🔎 Full Model Compatibility

Typically suits:

• Volvo Penta D6-370A-C, D6-350A-A, D6-350A-B, D6-370D-E, D6-370D-B, D6-370A-F, D6-370D-A, D6-370D-C, D6-370D-D, D6-370A-D, D6-370A-E, D6-370D-F, D6-435I-D, D6-440I-G, D6-480I-G, D6-380A-G, D6-380D-G, D6-440D-G, D6-480D-G, D6-400A-G, D6-440A-G, D6-400A-E, D6-435D-A, D6-435D-D, D6-435D-E, D6-435D-F, D6-435I-A, D6-435I-C, D6-435I-E, D6-400A-F, D6-435D-C, D6-435I-F, D6-370A-B, D6-480A-G
• Volvo Penta D13C3-B MH, D13C2-B MP, D13C1-A MP, D13C2-A MP, D13C3-A MP, D13C4-A MP, D13B-A MP, D13B-H MP, D13B-G MP, D13B-K MP, D13B-B MP, D13B-D MP, D13B-J MP, D13B-C MP, D13C5-B MP, D13C6-A MP, D13C5-A MP, D13C7-B MP
• Volvo Penta D4-260A-F, D4-260D-F, D4-300A-F, D4-300D-F, D4-270A-G, D4-320A-G, D4-300A-G
• Volvo Penta TAMD41H-A, TAMD41H-B, TAMD41P-A, TAMD41P
• Volvo Penta TAD1640GE, TAD1640VE-B, TAD1640-42VE-C
• Volvo Penta TAD1641VE-B, TAD1641GE, TAD1641VE
• Volvo Penta TAD1642VE-B, TAD1642GE, TAD1642VE
• Volvo Penta AD41L-A, AD41P-A
• Volvo Penta TAD1643VE-B, TAD1643VE
• Volvo Penta D41L-A
• Volvo Penta KAD300-A
• Volvo Penta KAMD300-A
• Volvo Penta TAD1346GE
• Volvo Penta TAD1650GE
• Volvo Penta TAD1651GE
• Volvo Penta TAD1660-62VE
• Volvo Penta TMD41L-A
• Volvo Penta TWD1643GE
• Volvo Penta TWD1652GE
• Volvo Penta TWD1653GE
• Volvo Penta TWD1663GE