Description
SIERRA MerCruiser Alpha / Bravo Shift Cable Guide – 18-2149
Sierra 18-2149 is the cable-end shift guide used in MerCruiser Alpha and Bravo lower-shift-cable systems. It supports the cable-end connection at the shift linkage and crosses to Mercury/MerCruiser 43433, 22879, 20175 and 29880.
- Cable-end guide for MerCruiser Alpha/Bravo shift linkage.
- Used at the intermediate/lower shift cable connection to the shift bracket/linkage.
- Compact service component often inspected during lower-shift-cable replacement.
- Crosses to Mercury/MerCruiser 43433, 22879, 20175 and 29880.
- Replace if worn, distorted or corroded so cable movement and shift adjustment are not compromised.
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: 18-2149
- Application: MerCruiser Alpha and Bravo shift-cable assemblies using the listed OEM guide numbers.
- Part Type: Shift cable guide
- Application: MerCruiser Alpha / Bravo
- System: Mechanical shift linkage
- Service Position: Cable-end connection
Interchange / OEM References
- GLM: 21430
- Mallory: 9-72150
- MerCruiser Stern Drive: 43433, 22879, 20175, 29880


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