SIERRA Mercury Outboard Shift Shaft Housing Bushing – 18-2155

Description

SIERRA Mercury Outboard Shift Shaft Housing Bushing – 18-2155

Sierra 18-2155 is a replacement shift-shaft housing bushing for a range of Mercury outboard gearcase applications. It crosses to Mercury 23-37428A1, 23-55419A1 and 23-77631A2 and is commonly used in 35-200 hp application families identified by those OEM numbers.

• Replacement bushing for Mercury outboard shift-shaft support.
• Crosses to Mercury 23-37428A1, 23-55419A1 and 23-77631A2.
• Supports shift-shaft alignment within the gearcase/housing.
• Cataloged across multiple Mercury outboard horsepower families; OEM-number verification is essential.
• Inspect the shaft and adjacent sealing components if excessive play or water intrusion is present.

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: 18-2155
• Application: Selected Mercury outboards, broadly within cataloged 35-200 hp families, using the listed OEM shift-shaft bushing numbers.
• Part Type: Shift-shaft housing bushing
• Application: Mercury outboard
• System: Gearcase shift mechanism
• OEM Family: 23-37428 / 23-55419 / 23-77631

Interchange / OEM References

• GLM: 21020
• Mallory: 9-76134
• Mercury Marine: 23-37428A1, 23-55419A1, 23-77631A2