SIERRA MerCruiser R/MR/Alpha One Oil Seal – 1.250 in Shaft – 18-2049

Description

SIERRA MerCruiser R/MR/Alpha One Oil Seal – 1.250 in Shaft – 18-2049

Gearcase oil seal for selected MerCruiser R, MR and Alpha One stern drives. The seal fits a 1.250-inch shaft and is used in the drive sealing system to retain lubricant and exclude water.

• MerCruiser gearcase oil seal
• 1.250 in / 31.75 mm shaft diameter
• Approximately 2.005 in / 50.93 mm outside diameter
• Approximately 0.388 in / 9.86 mm width
• Verify drive and seal location before installation

For marine engine and drive parts, fitment can vary by serial number, gear ratio, casting, or prior service history. Compare the original part number and physical configuration before installation; replace related gaskets, seals, races or hardware when their condition requires it.

Specifications

• Manufacturer: Sierra
• Part Number: 18-2049
• Application: Selected MerCruiser R, MR and Alpha One drives using OEM seal 26-32511.
• 1.250 in / 31.75 mm shaft diameter
• Approximately 2.005 in / 50.93 mm outside diameter
• Approximately 0.388 in / 9.86 mm width

Interchange / OEM References

• MerCruiser 26-32511
• GLM 85020
• Mallory 9-76111