SIERRA GM Big-Block Exhaust Manifold Mounting Gasket – 18-0418

Description

SIERRA GM Big-Block Exhaust Manifold Mounting Gasket – 18-0418

A cylinder-head-to-exhaust-manifold sealing gasket for common GM big-block marine exhaust systems.

• Application: Applicable GM big-block V8 marine engines across MerCruiser, OMC, Volvo Penta, Crusader and related manifold systems.
• Primary function: Exhaust manifold mounting gasket
• Key specification: Engine family – GM big-block V8
• OEM / aftermarket cross-reference: Barr: CHVA470000, MC47-27-46820; Crusader: 96653; GLM: 33760; Mallory: 9-61400; MerCruiser: 27-46820; OMC: 909613, 3852472; Osco: CW-GH; Volvo Penta: 3852472
• Verify mating surfaces and follow the engine or drive service procedure during installation.

This part is application-specific. Confirm the OEM number and engine or drive configuration before installation.

Application: Applicable GM big-block V8 marine engines across MerCruiser, OMC, Volvo Penta, Crusader and related manifold systems.

Specifications

• Component: Exhaust manifold mounting gasket
• Engine family: GM big-block V8
• OEM reference: MerCruiser 27-46820

Interchange / Replaces

• Barr: CHVA470000, MC47-27-46820
• Crusader: 96653
• GLM: 33760
• Mallory: 9-61400
• MerCruiser: 27-46820
• OMC: 909613, 3852472
• Osco: CW-GH
• Volvo Penta: 3852472

Related Products

• Upsell / complete repair: SIE-18-1957-2
• Relationship notes: SIE-18-1957-2 is a complete Sierra manifold for applicable GM big-block applications and Sierra lists 18-0418 with that manifold family.