1674086 Gasket | Genuine Volvo Penta Part

🔧 Product Description

This genuine Volvo Penta gasket is a coolant-compatible joint gasket used in the heat-exchanger/expansion-tank sealing joint. It is manufactured to the original Volvo dimensional, material and interface requirements so the serviced assembly retains its designed alignment, sealing, load capacity and operating reliability. In service, it seals the heat-exchanger or expansion-tank mating face against coolant leakage and pressure loss. Selection must be confirmed by OEM part number 1674086, the exact engine/product model, serial number and the installed assembly configuration.

🚤 Compatibility

• Engine Family: D, TWD, TWG
• HP Range: 145-480 HP

Full model list at the end of this description.

⚙️ Key Features

• OEM Volvo Penta part number 1674086
• System group: Cooling System
• Net weight: 0.0045 kg
• Fits D4 and D6 marine diesel engines plus TWD and TWG industrial engine series
• Service item designed for replacement whenever the sealed joint is opened

🔌 Function

The gasket forms a sealed joint between two mating faces in the engine cooling system, preventing coolant escape and maintaining circuit pressure. It also compensates for minor surface irregularities between the components it separates.

⚠️ Common Signs of Failure

• Coolant seepage, drips or crusty residue around the joint face
• Loss of coolant level with no other identifiable leak point
• Engine running hotter than normal due to lost coolant or a pressure leak
• Gasket found hardened, cracked, flattened or torn on inspection
• Repeated need to top up the expansion tank

🛠️ 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 D6-330A-F, D6-370A-F, D6-330D-F, D6-370D-F, D6-300A-F, D6-300D-F, D6-300I-F, D6-340I-G, D6-380I-G, D6-440I-G, D6-480I-G, D6-300A-G, D6-340A-G, D6-380A-G, D6-440I-WJ-G, D6-480I-WJ-G, D6-300D-G, D6-340D-G, D6-380D-G, D6-440D-G, D6-480D-G, D6-400A-G, D6-440A-G, D6-300I-G, D6-330I-F, D6-370I-F, D6-435D-F, D6-400A-F, D6-435I-F
• Volvo Penta D4-260A-F, D4-260D-F, D4-260I-F, D4-300A-F, D4-300D-F, D4-180I-F, D4-225I-F, D4-300I-F, D4-225A-F, D4-175I-G, D4-230I-G, D4-270I-G, D4-320I-G, D4-300I-G, D4-150A-G, D4-230A-G, D4-270A-G, D4-320A-G, D4-300A-G, D4-145I-G
• Volvo Penta TWD1643GE
• Volvo Penta TWD1644-45GE
• Volvo Penta TWD1652GE
• Volvo Penta TWD1653GE
• Volvo Penta TWD1663GE
• Volvo Penta TWD1672-1673GE
• Volvo Penta TWD1682-83GE
• Volvo Penta TWD1683GE-B
• Volvo Penta TWD1744GE
• Volvo Penta TWG1663GE