Gimbal Bearing – Fits MerCruiser, OMC, Volvo Penta Sterndrives (Replaces 30-60794A4, 3853807)

Gimbal Bearing – Fits MerCruiser, OMC, Volvo Penta Sterndrives

This aftermarket gimbal bearing is designed for a wide range of sterndrives, including the MerCruiser Alpha One, Gen II, and Bravo series (1983–2002), as well as OMC Cobra/King Cobra and various Volvo Penta models.

It serves as a direct replacement for multiple OEM and aftermarket part numbers, ensuring precise fit and function. It is constructed from a durable steel housing with precision bearings to meet or exceed original equipment specifications.

• Installation Method: Requires a mechanical press-fit.
• Direct Replacement: Engineered to interchange with MerCruiser 30-60794A4, OMC 3853807, and Volvo Penta 3853807.
• Package Includes: One gimbal bearing.

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.

Confirm your engine model/year in the table below.

Confirm your engine model/year in the table below.

MerCruiser

OMC

Volvo Penta

Technical Specifications

Package Contents

• 1 x Gimbal Bearing (Replaces 30-60794A4)

Explosion Diagram

Installation Guide

1. Preparation: Disconnect the battery and ensure the sterndrive is trimmed to the trailer position.
2. Access Gimbal Housing: Remove the sterndrive unit according to the manufacturer's service manual to access the bell housing.
3. Remove Old Bearing: Use a slide hammer with a bearing puller attachment to carefully extract the old gimbal bearing from the housing.
4. Clean Housing: Thoroughly clean the bearing seat inside the gimbal housing, removing any grease, corrosion, or debris.
5. Align New Bearing: Position the new gimbal bearing squarely with the housing. Ensure the grease hole is correctly aligned per your drive's requirements (if applicable).
6. Press-Fit Installation: Using a proper bearing driver tool, press the new bearing into the housing until it is fully seated. Do not use a hammer directly on the bearing.
7. Final Checks: Confirm the bearing is flush and properly seated. Apply marine-grade grease as needed.
8. Reassembly: Reinstall the bell housing and sterndrive, torquing all bolts to the manufacturer's specifications.

Troubleshooting & FAQ

Q: How do I know if this gimbal bearing will fit my specific sterndrive?
A: The best way to confirm is by matching your original part number to those listed in our cross-reference table. You can also check the compatible models tables for your drive's brand, model, and year.

Q: What are the signs of a failing gimbal bearing?
A: Common symptoms include a grinding or roaring noise from the rear of the engine, especially during turns. You may also notice excessive vibration or a stiff steering feel.

Q: How often should a gimbal bearing be replaced?
A: There is no fixed replacement interval, but the bearing should be inspected for roughness or noise whenever the sterndrive is removed for service. It is often replaced proactively during major services or when the U-joint bellows are replaced.

Q: OEM vs. Aftermarket?
A: 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.

Q: How fast do you ship and how much does it cost?
A: 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.

Q: What is your warranty and return policy?
A: 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.