Shift Shaft Bushing Kit – Fits MerCruiser Alpha One Gen II Sterndrive (Replaces 23-806036A1)

Shift Shaft Bushing Kit – Fits MerCruiser Alpha One Gen II Sterndrive (Replaces 23-806036A1)

This shift shaft bushing kit is designed for MerCruiser Alpha One Gen II sterndrive units from 1991 and later, specifically those with serial numbers F094775 and up. It provides the necessary components to address wear and leaks associated with the shift shaft mechanism in the bell housing.

This kit is a direct replacement for MerCruiser 23-806036A1, Sierra 18-3760, GLM 87562, and Mallory 9-72162.

• Installation Method: This is a press-in kit that requires proper tools for seating the bushings.
• Included Components: The kit contains two bushings and two seals for a complete service.
• Durable Materials: Bushings are made from high-quality brass/bronze, and seals are polyurethane to ensure a long service life.

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. For Mercury owners, here’s a guide to help you identify your engine’s serial/model: Mercury Serial Number Guide. You can also review exploded diagrams to verify part numbers: Mercury Parts Diagrams & Catalog.

Technical Specifications

Package Contents

• 2 x Shift Shaft Bushings
• 2 x Shift Shaft Seals

Installation Guide

1. Safely secure the sterndrive and drain the gear lube completely.
2. Locate and access the shift shaft assembly in the bell housing.
3. Use a suitable puller or slide hammer to carefully extract the old bushings and seals from their bores.
4. Thoroughly clean the housing bores to remove any corrosion, sealant, or debris.
5. Align the new bushings squarely with the bores.
6. Use a press or an appropriate bushing driver tool to press the new bushings in until they are fully seated. Do not hammer them in, as this can cause damage.
7. Install the new seals with the correct orientation to prevent leaks.
8. Reassemble the shift shaft and related components.
9. Refill the sterndrive with the manufacturer-recommended gear lube to the correct level.
10. Before water testing, check for smooth shifting operation through all gears.

Troubleshooting & FAQ

How do I know if this shift shaft bushing kit will fit my MerCruiser drive?
This kit is specifically designed for MerCruiser Alpha One Gen II sterndrives made from 1991 to present with serial numbers F094775 and up. Please verify your drive's model and serial number before ordering to ensure compatibility.

What are the signs that my shift shaft bushings need replacing?
Common symptoms include difficulty shifting, a loose-feeling or wobbly shift shaft, or a persistent gear lube leak from the shift shaft area. These issues often point to worn-out bushings and seals that are no longer providing a proper fit.

Is a special tool required for installation?
Yes, installation is a press-fit process. Using a proper bushing driver tool or a workshop press is highly recommended to install the bushings without damaging them or the bell housing.

OEM vs. Aftermarket?
This listing is an aftermarket replacement part (not an OEM component). We build to OEM specifications using comparable-grade materials. Production is done in an ISO9002-certified facility, and each batch is inspected for consistent performance.

How fast do you ship and how much does it cost?
We offer fast global shipping—typically 5–15 days worldwide—and standard shipping is free. Expedited options are available at checkout depending on your location.

What is your warranty and return policy?
This product includes a 1-year warranty against manufacturing defects under normal use. If something goes wrong, contact our support team with your order details. Returns are accepted within our standard return window (unused & in original condition); please see our policy page or reach out for instructions.

Important Notes

• Verify that the product images and specifications match your original part. If discrepancies exist—even if your model is listed—do not proceed with the purchase.
• This product is an aftermarket replacement part and is not an OEM component.
• Professional installation is recommended to ensure safety and optimal performance.

Why Choose JLM MARINE?

• Quality Assured: As a trusted manufacturer for over 20 years, we supply top marine brands globally.
• Fast Global Shipping: Free delivery worldwide in 5–15 days.
• Direct from Manufacturer: Competitive pricing without compromising quality.