SIERRA MerCruiser 7.4L / 8.2L Exhaust Manifold – 18-1957-2

Description

SIERRA MerCruiser 7.4L / 8.2L Exhaust Manifold – 18-1957-2

A heavy cast water-jacketed exhaust manifold for big-block MerCruiser applications. Sierra supplies this manifold for either bank and packages the key sealing/drain components required for installation.

• Application: MerCruiser GM 7.4L and 8.2L CID marine engines using the applicable center-rise manifold configuration.
• Component/function: Exhaust manifold
• Key specification: Engine: GM 7.4L / 8.2L
• OEM / aftermarket cross-reference: Barr: MC-1-89011; GLM: 51240; HGE: 9011; Mallory: 9-40506
• Use the applicable OEM service procedure and inspect mating components during installation.

This is an application-specific marine service part. Confirm the engine or sterndrive model, serial range and OEM reference before installation.

Application: MerCruiser GM 7.4L and 8.2L CID marine engines using the applicable center-rise manifold configuration.

Specifications

• Component: Exhaust manifold
• Engine: GM 7.4L / 8.2L
• Side: Port or starboard
• Included components: 18-0418 gasket; 18-0897 elbow gasket; 18-4224 drain elbow

Interchange / Replaces

• Barr: MC-1-89011
• GLM: 51240
• HGE: 9011
• Mallory: 9-40506