16331 Gasket | Genuine Volvo Penta Part

🔧 Product Description

This is the genuine Volvo Penta gasket in the late-type version, part number 16331, listed under the Marine Propulsion group. It provides the sealing joint between mated components on classic four- and six-cylinder Volvo Penta petrol and diesel engines and their marine installations. The "Late type" designation is what separates this gasket from the earlier-production equivalent, so confirm which version your engine was built with before ordering.

🚤 Compatibility

• Engine Family: AQ, BB, TD, B, MD, MB, AQD

Full model list at the end of this description.

⚙️ Key Features

• Genuine Volvo Penta OEM part number 16331
• Late type version - supersedes the earlier-production gasket design for these engines
• System group: Marine Propulsion
• Fits classic Volvo Penta AQ, BB, MB, MD and B series engines including TD100A
• Engine type: Volvo Penta early marine diesel applications

🔌 Function

The gasket forms a compressible seal at the joint between two mating surfaces, preventing leakage of fluid, gas or pressure past the connection. It also compensates for minor surface irregularities so the two faces can be clamped together tightly and evenly.

⚠️ Common Signs of Failure

• Visible seepage, weeping or drips at the sealed joint
• Hardened, brittle or cracked gasket material found on inspection
• Flattened, crushed or torn sections that no longer take up clamping load
• Loss of pressure or air/exhaust leakage audible at the joint
• Repeated need to re-torque fasteners to stop a leak

🛠️ 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

• 54145627 - related Volvo Penta reverse-gear parts section
• 822756 - related TD100A axle shaft in the late-type coupling arrangement

📦 Condition

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

🔎 Full Model Compatibility

Typically suits:

• Volvo Penta AQ130C, AQ130D, AQ130A, AQ130B
• Volvo Penta AQ170B, AQ170C, AQ170A
• Volvo Penta BB115A, BB115B, BB115C
• Volvo Penta BB170B, BB170C, BB170A
• Volvo Penta MB20A, MB20B, MB20C
• Volvo Penta AQ115A, AQ115B
• Volvo Penta 100S, 110S
• Volvo Penta AQ165A
• Volvo Penta AQD21A
• Volvo Penta B20
• Volvo Penta BB165A
• Volvo Penta MD21A
• Volvo Penta TD100A