45518T1 Shift Lever & Bushing Kit for Mercruiser R MR Alpha | JLM Marine

Shift Lever & Bushing Kit for Mercruiser R MR Alpha | Replaces 45518T1

This Shift Lever & Bushing Kit is designed to fit Mercruiser R, MR, and Alpha I drives from 1983 to 1990. It provides a complete replacement solution for worn or damaged shift components, restoring smooth and reliable gear shifting to your sterndrive system.

This kit directly replaces OEM part number 45518T1 and cross-references with multiple aftermarket numbers including 64518K, 45518T, and 21144, ensuring broad compatibility across Mercruiser sterndrive applications.

• Complete shift lever and bushing assembly for reliable operation
• Designed for Mercruiser R/MR/Alpha I sterndrives (1983-1990)
• Direct replacement for OEM part 45518T1

Part Number Cross-Reference

Use this table to confirm equivalent part numbers across OEM and aftermarket brands.

Compatible Engine Models

Confirm your engine model/year in the table below.

Technical Specifications

Package Contents

• Shift Lever & Bushing Kit (Complete Assembly)

Installation Guide

1. Disconnect the battery and ensure the engine is off before beginning any work on the sterndrive system.
2. Access the shift mechanism by removing the necessary cover panels or housing from your Mercruiser drive unit.
3. Carefully remove the old shift lever assembly, noting the orientation and position of all components.
4. Inspect the surrounding area for wear or damage that may affect shift performance.
5. Install the new bushing into the designated location, ensuring it seats properly and aligns with mounting points.
6. Position the new shift lever assembly, making sure all alignment pins and guides are correctly engaged.
7. Secure all fasteners to the manufacturer's recommended torque specifications.
8. Reconnect any shift cables or linkages, adjusting cable tension as needed for smooth operation.
9. Reinstall all cover panels and housing components removed during disassembly.
10. Reconnect the battery and perform a function test by shifting through all gear positions (forward, neutral, reverse).
11. Check for smooth engagement and proper alignment; adjust cable tension if necessary.
12. Perform a water test to confirm proper shifting under operating conditions.

Troubleshooting & FAQ

Q: How do I confirm this kit fits my Mercruiser drive?
A: Verify that you have an R, MR, or Alpha I sterndrive manufactured between 1983 and 1990. Cross-reference your current part number with the compatibility table above to ensure proper fitment.

Q: What are the signs that my shift lever and bushing need replacement?
A: Common symptoms include difficulty shifting gears, grinding or clunking noises during gear changes, excessive play in the shift lever, or the inability to fully engage forward or reverse.

Q: Can I install this kit myself or do I need a professional?
A: While experienced boat owners with mechanical aptitude can install this kit, professional installation is recommended to ensure proper alignment, torque specifications, and shift cable adjustment.

Important Notes

• Verify that the product images and specifications match your original part before purchasing.
• This product is an aftermarket replacement part and is not an OEM component.
• Professional installation is recommended to ensure safety and optimal performance.