Sierra Water Pump Gasket 18-2914-9, Replaces 27-856081, 27-32433, Pack of 2

The Sierra 18-2914-9 Water Pump Gasket is a replacement gasket used in most lower units and sea water pumps on Mercruiser stern drive and Mercury marine applications. It seals the water pump housing to prevent leaks and maintain proper cooling water flow through the lower unit or sea water pump assembly, helping protect the engine from overheating caused by a failed or hardened factory gasket.

Each package contains 2 gaskets, so you have a spare on hand or enough for a job requiring more than one seal. This gasket is a direct cross-reference to the OEM Mercury Marine and Mercruiser Stern Drive numbers listed below, so it fits in place of the original equipment part without modification. Sierra manufactures this gasket to meet or exceed the specifications of the original equipment part it replaces, making it a reliable choice for routine water pump maintenance or rebuild kits.

Specifications

• Brand: Sierra
• Manufacturer Part Number: 18-2914-9
• Package Quantity: 2 gaskets per package
• Weight: 0.04 pounds
• Material: Plastic
• Universal Product Code: 808282164164

Fitment

• Used in most lower units and sea water pumps
• Mercruiser stern drive applications
• Mercury marine applications

Replaces (OEM)

• 27-856081
• 27-85608
• 27-32433
• 27-30603
• 27-8M0090319

Frequently Asked Questions

What does the Sierra 18-2914-9 gasket fit? The 18-2914-9 gasket is used in most lower units and sea water pumps on Mercruiser stern drive and Mercury marine applications.

How many gaskets come in a package? Part number 18-2914-9 is sold in a package of 2 gaskets.

Is the Sierra 18-2914-9 gasket the same as the OEM Mercury Marine gasket? Yes, it directly replaces OEM Mercury Marine and Mercruiser Stern Drive numbers 27-856081, 27-85608, 27-32433, 27-30603, and 27-8M0090319.

What OEM part numbers does 18-2914-9 cross-reference to? It replaces 27-856081, 27-85608, 27-32433, 27-30603, and 27-8M0090319.

What material is the 18-2914-9 gasket made of? This gasket is made of plastic.

How much does the 18-2914-9 gasket weigh? Each package of the 18-2914-9 gasket weighs 0.04 pounds.

Where is this gasket installed on a sea water pump? The 18-2914-9 gasket seals the water pump housing to prevent leaks and maintain proper cooling water flow through the lower unit or sea water pump assembly.

Is this an authentic Sierra part or an aftermarket copy? Part number 18-2914-9 is a genuine Sierra product, manufactured to meet or exceed the original equipment part it replaces.

Can I use the 18-2914-9 gasket for a water pump rebuild kit? Yes, since it comes 2 per package, the 18-2914-9 gasket works well for routine water pump maintenance or as part of a rebuild.

What is the UPC for the Sierra 18-2914-9 gasket? The Sierra 18-2914-9 Water Pump Gasket has UPC 808282164164.