SIERRA Mercury / Force Gearcase Oil Seal – 18-2056

Description

SIERRA Mercury / Force Gearcase Oil Seal – 18-2056

Sierra 18-2056 is a replacement marine oil seal for selected Mercury, MerCruiser and Force/Chrysler gearcase applications. It seals a 0.875-inch shaft in a 1.381-inch bore and should be matched by both OEM number and measured dimensions during drive service.

• Marine radial oil seal for drive and gearcase service.
• Outside diameter: 1.381 in (35.1 mm).
• Shaft diameter: 0.875 in (22.2 mm).
• Seal width: 0.250 in (6.35 mm).
• Replace damaged or hardened seals and inspect the shaft sealing surface for wear before reassembly.

For marine drive and engine service parts, fitment can vary by model, serial number, gear ratio, casting and prior service history. Compare the original OEM number and physical configuration before installation, and replace related seals, bearings, locking hardware or cable components when their condition requires it.

Specifications

• Manufacturer: Sierra
• Part Number: 18-2056
• Application: Selected Mercury Marine, MerCruiser and Chrysler/Force lower-unit or stern-drive applications using the listed OEM seal references.
• Outside Diameter: 35.1 mm (1.381 in)
• Shaft Diameter: 22.2 mm (0.875 in)
• Width: 6.35 mm (0.250 in)
• Part Type: Radial oil seal

Interchange / OEM References

• Chrysler / Force: 26-66302
• GLM: 85060
• Mallory: 9-76130
• MerCruiser Stern Drive: 26-37259, 26-89237, 26-96503, 26-965031
• Mercury Marine: 26-66302, 26-56394