Sierra 18-2962 Head Gasket for Johnson/Evinrude 50 HP Outboard, Replaces 306163 and 322332

The Sierra 18-2962 Head Gasket is a replacement power head gasket built for Johnson and Evinrude 50 HP outboard engines. It seals the cylinder head-to-block joint, maintaining proper compression and preventing coolant or combustion leaks that can lead to lost power, overheating, or head damage. This gasket is a direct equivalent to the original Johnson/Evinrude 306163 and 322332 gaskets, so it installs using the same mounting pattern and torque specifications as the OEM part it replaces.

Each package contains one gasket, sold individually for a single head gasket replacement job. Sierra manufactures this gasket to meet or exceed the performance of the original equipment part, making it a reliable choice when servicing a 50 HP Johnson or Evinrude power head during a rebuild, head removal, or leak repair.

Specifications

• Brand: Sierra
• Manufacturer Part Number: 18-2962
• Category: Evinrude Outboard Power Head Gaskets
• Color: white
• Weight: 0.09 pounds
• Quantity: 1 gasket per package
• UPC: 030999314611

Fitment

• Johnson and Evinrude 50 HP (1971-1975) outboard engines

Replaces (OEM)

• 306163
• 322332

Frequently Asked Questions

What does the Sierra 18-2962 head gasket fit? This gasket is built for Johnson and Evinrude 50 HP (1971-1975) outboard engines.

What OEM part numbers does the 18-2962 replace? It is a direct interchange for Johnson/Evinrude outboard head gaskets 306163 and 322332.

Is the Sierra 18-2962 an OEM or aftermarket gasket? It is an aftermarket Sierra-manufactured gasket engineered to meet or exceed the performance of the original 306163 and 322332 Johnson/Evinrude gaskets it replaces.

How many gaskets come in one package of the 18-2962? One head gasket is included per package.

How much does the 18-2962 head gasket weigh? The Sierra 18-2962 head gasket weighs 0.09 pounds.

What color is the Sierra 18-2962 head gasket? It is white.

Will the 18-2962 work on any Johnson or Evinrude outboard? No, this gasket is specific to Johnson and Evinrude 50 HP (1971-1975) engines and should be matched to that engine before ordering.

Does the 18-2962 require any additional gaskets or seals to complete a head gasket job? The listing covers the head gasket itself; check your engine's other seals and hardware separately since only the head gasket is included in this package.

Can the 18-2962 be used as a direct swap without modification? Yes, since it is interchangeable with the original 306163 and 322332 gaskets, it installs in place of those parts on a Johnson/Evinrude 50 HP power head.

What is the difference between using an OEM Johnson/Evinrude gasket versus the Sierra 18-2962? The Sierra 18-2962 is manufactured to meet or exceed the specification of the original 306163 and 322332 gaskets, providing the same fit and sealing performance as the OEM part.