SIERRA GM 3.0L / 4.3L / 5.0L / 5.7L One-Piece Rear Main Seal – 18-0519

Description

SIERRA GM 3.0L / 4.3L / 5.0L / 5.7L One-Piece Rear Main Seal – 18-0519

A one-piece crankshaft rear-main oil seal for compatible GM-based marine engines in MerCruiser, OMC and Volvo Penta packages.

• Application: Selected standard-rotation GM 3.0L, 4.3L, 5.0L and 5.7L marine engines using a one-piece rear main seal.
• Primary function: One-piece rear main seal
• Key specification: Outside diameter – 4.536 in.
• OEM / aftermarket cross-reference: GLM: 85790; Mallory: 9-61621; Mercruiser Stern Drive: 26-14240, 26-8M0077606, FI1101300; OMC Stern Drive: 3852657, 912957; Volvo Penta: 3852657, 855809; MerCruiser: 26-14240, 26-8M0077606, FI1101300; OMC: 3852657, 912957
• 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: Selected standard-rotation GM 3.0L, 4.3L, 5.0L and 5.7L marine engines using a one-piece rear main seal.

Specifications

• Component: One-piece rear main seal
• Outside diameter: 4.536 in.
• Shaft size: 3.792 in.
• Width: 0.482 in.
• Rotation: Standard

Interchange / Replaces

• GLM: 85790
• Mallory: 9-61621
• Mercruiser Stern Drive: 26-14240, 26-8M0077606, FI1101300
• OMC Stern Drive: 3852657, 912957
• Volvo Penta: 3852657, 855809
• MerCruiser: 26-14240, 26-8M0077606, FI1101300
• OMC: 3852657, 912957