SIERRA GM Big-Block V8 427/454/482 Marine Cylinder Head Gasket – 18-3877

Description

SIERRA GM Big-Block V8 427/454/482 Marine Cylinder Head Gasket – 18-3877

The SIERRA GM Big-Block V8 427/454/482 Marine Cylinder Head Gasket – 18-3877 is a fit-specific marine service component for Selected GM big-block 427, 454 and 482 CID marine V8 engines used by MerCruiser, OMC, Crusader and Chris-Craft. It is intended to replace the corresponding OEM service part where the listed interchange and engine application match. Confirm the engine model, serial/year range and OEM number before installation.

• Cylinder-head gasket for selected GM big-block marine V8 engines
• Applicable to specified 427, 454 and 482 CID engine families
• Used across several MerCruiser, OMC, Crusader and Chris-Craft marine applications
• Designed for cylinder-head service and engine overhaul work
• Confirm engine casting/configuration and OEM gasket number before installation

Specifications

• Manufacturer: Sierra
• Part Number: 18-3877
• Product Type: Cylinder Head Gasket
• Application: Selected GM big-block 427, 454 and 482 CID marine V8 engines used by MerCruiser, OMC, Crusader and Chris-Craft
• OEM / Aftermarket Interchange: MerCruiser/OMC/Crusader/Chris-Craft big-block marine applications; GLM and Mallory cross-references
• UPC: 030999563118