Mercury MerCruiser Gasket 8M0108647

The Mercury Quicksilver 8M0108647 Gasket (Mercury format 27-8M0108647) is a genuine OEM fuel pump mounting gasket and spacer used on select MerCruiser gasoline engines. It seals the mechanical fuel pump to the engine block while maintaining the proper clearance for the pump mechanism.

Key Specifications

• Part Number: 8M0108647

• Mercury Format: 27-8M0108647

• Component Type: Fuel pump mounting gasket / spacer

• Construction: Metal spacer with gasket material on both sides

• Thickness: approx. 1/8 in (4 mm)

• OEM Brand: Mercury Marine / Quicksilver

Compatible Engines / Applications

Commonly used on MerCruiser 4-cylinder gasoline engines, including:

• 2.5L (120 HP)

• 3.0L (140 HP)

• 3.0L TKS / 3.0L LX

• 3.7L MerCruiser engines

Typical production range: 19831997, depending on engine configuration.

Function

This gasket assembly mounts between the engine block and mechanical fuel pump. It provides both sealing and spacing to ensure proper fuel pump operation.

It helps ensure:

• Leak-free fuel pump installation

• Proper pump arm clearance and operation

• Reliable fuel delivery to the carburetor

The metal spacer construction prevents distortion and maintains consistent gasket compression during engine operation.

Service Notes

A worn or damaged fuel pump gasket may cause:

• Fuel leaks at the pump mounting surface

• Reduced fuel pressure or delivery

• Air entering the fuel system

Replacing the gasket during fuel pump service helps maintain a proper seal and correct pump operation.

OEM parts ship same or next day for fast Canada wide shipping.

Technical Specifications:

• Type: Gasket
• Compatible with: Mercury MerCruiser marine engines
• Part Number: 8M0108647