GASKET (REC27-8637251)

The flange pieces that connect the pump to the inlet and outflow pipes are sealed with water pump gaskets. When two or more mating surfaces are together, a gasket is a mechanical seal that fills the space between them to prevent leaking from or into the joined objects.

Fresh Water Cooling Gasket Manifold for Mercruiser

27-8637251 Mercruiser Wet Joint Block Off Exhaust Riser Gasket Replacement

On the engine of the Mercruiser:

• GM V6 4.3L, GM V8 small block, wet joint exhaust manifold, and risers
• block 5.0L, 5.7L, and 6.2L, and GM V8 big block 7.4L and 8.2L CLOSED COOLED engines.
• REC 27-8637251 is a non-OEM part.

Key Features:

• For usage with manifolds that are cooled by freshwater, use a block off gasket.
• Stainless steel block off plate for the Barr Mercruiser
• In freshwater cooling applications for Mercruiser center rise exhaust manifolds
• Risers for the Mercruiser 98502A2, 98504A3, and 44354A3
• Replacing the MC20-87918 Barr
• 27-8637251 is a Mercury replacement.
• USE WITH TWO GASKETS

Specifications:

• SKU: REC27-8637251
• Weight: 0.04 LBS

This product replaces:

27-8637251, 860231, 863725, 8637251 / 0502988, 0508715