SKU: 47658555977

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

Sale price$27.90 Regular price$31.00
Save 10%

Pay in installments of $7.75 with ShopPay, AfterPay and Klarna

Shipping Estimate
USA
  • USA
  • CAN

Ships within 48 hours · Estimated delivery Aug 12 - Aug 17

Promo Codes Available:

For Your Every Summer RSVP, with Code: SUMMER15

Description

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 (19832002), 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

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.

Brand Part Number
MerCruiser 30-60794A4
MerCruiser 30-879194A02
MerCruiser 30-862540A3
OMC 983937
OMC 3853807
Volvo Penta 3853807
Volvo Penta 21752712
Sierra 18-2100
GLM 21900
Mallory 9-72410

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

Model Years OEM Part No.
Bravo I / II / III 1988–2002 30-60794A4, 30-879194A02
R / MR / Alpha One 1983–1990 30-60794A4
Alpha One 1991–2002 30-60794A4
Alpha One Gen II 1991–2002 30-60794A4

OMC

Model OEM Part No.
Cobra 983937, 3853807
Cobra SX 983937, 3853807

Volvo Penta

Model Years OEM Part No.
3.0L 1994–1998 3853807, 21752712
4.3L 1994–1998 3853807, 21752712
5.0L 1994–1998 3853807, 21752712
5.7L 1994–1998 3853807, 21752712
5.8L 1994–1996 3853807, 21752712
7.4L 1994–1998 3853807, 21752712
8.2L 1998 3853807, 21752712

Technical Specifications

Specification Value
Product Type Gimbal Bearing
Installation Mechanical press-fit
Housing Material Steel with precision bearings
Weight 0.6 kg (1.32 lbs)
Warranty Limited Lifetime (Sierra)
Manufacturing Location Mexico (Sierra), China (JLM)

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.
Shipping Notes
  • Free Standard Shipping on $100+ Orders to the USA.
  • Except Preorder products are shipped in 48 hours.
  • Delivery to the USA:
  1. Standard Shipping : 3-10 business days
  • If time is of the essence, please consider selecting expedited delivery for faster service.
Exchange/Return Notes
  • We offer a 30-day return/exchange service after receiving.
  • Final sale items are not eligible for returns or exchanges.
  • To process your return/exchange, please contact us at [email protected]
  • Please click here for more details>>> Return & Exchange Policy
SKU: 47658555977

Discover Niche Categories That Outsell

Top-Converting Item to Boost Your Average Order

4.0 ★★★★★
Based on 24 reviews
Sort
Highest Rating
Newest First
Oldest First
Product Reviews
T
Verified Purchase
Treats86
Bozeman, US
★★★★★ 5
Amazing. A bit of a job to set it up but worth it!
Color: Black, Color: Black
Excellent quality. Sturdy and strong. The screws that come with it are awful. Get yourself some different ones. Takes a while to set it up and get it all measured. I did it while I was setting up my new Flexi-spot E7 Plus standing desk. Wanted to get it all done at the same time. At first. I thought it might be overkill, but I am sooooo glad I did get this. Now my computer moves along with the desk. It looks great. I bet it has improved the air flow around my computer as well. Looks sleek and cool. I might have set it a bit too tight around my case and as a result I have to shimmy it to get it out of the holder if I have to do any work on the computers internals. But at least I know it's secure. My suggestion would be to leave a little bit of slack to avoid this in your setup. Maybe like a 1/4 inch would be ok. The pads should hold it in place anyway. May loosen mine up if I find the time. But it feels totally secure on the desk with no wobble or shaking. Great product. Also I'm a woman in my late fifties 😃and I was able to set it all up on my own. So don't be intimidated ladies, you can do it too. I also bought two of the ultimate set up cable management trays. Great products. Note for anyone from the Ultimate Setup company who might read this. Please provide better quality wood screws and some extra ones) I stripped three of the cheap ones that came with this. And it took forever to drill them in because they weren't strong enough. Then it would be perfect.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on November 17, 2025
N
Verified Purchase
Norman D Warren
Omaha, US
★★★★★ 5
Solid, simple and perfect.
Color: Black, Color: Black
Great simple design. The quality is evident in the thickness of materials. The assembly instructions, hardware and tools provided help minimize the time spent from opening the box to install. This product is packaged well and shipped with the customer convenience in mind. Well done!
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on May 26, 2026
A
Verified Purchase
Ashton Raum
Lowell, US
★★★★★ 5
Awesome quality
Color: White, Color: White
Take your time installing! It comes with all the instructions and templates. Make sure you’re screwing this into solid wood. I would not recommend you hang your expensive PC from a particle board table. My Pc fits in well and it’s compatible with a ton of different sizes. Mine has been mounted under my desk for about 6 months and is rock solid. I will say, mine is balancing in there. If I don’t have it at its center of gravity, it could tip out. You can adjust it with the various screw holes but make sure you mount it into something solid.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on April 16, 2026
C
Verified Purchase
Cameron
Lowell, US
★★★★★ 5
Fantasic under-desk mounting solution for gaming PC
Color: White
This item comes with an incredible amount of tools and guides for making you successful in mounting your desktop PC under the desk. I am very impressed with the quality of the materials and also the quality of documents included. It feel very sturdy using the included hardware. I would recommend this item for anyone wanting to free up desktop space!
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on March 27, 2026
M
Verified Purchase
Mike
Charlottesville, US
★★★★★ 5
PC holder that looks great and works on large PCs for easy under desk mounting
Color: Black
After a lot of research and trial and error I finally found the Heavy Duty Under Desk PC Holder. It is the only under desk PC holder that looks good and is able to hold my HP Omen 45L where I want it - under my desk. Putting it together is relatively easy as was the installation to the desk. No messing with cables or round steel tubes to get the job done. The metal is solid, the black powder coating looks great, and the installation hardware is a;l there including a drill bit, hex key, and wrench. You just need to bring a screw driver for the wood screws to attach it to your desk. Read the instructions and make sure you take the depth of your PC into account when attaching the PC holder to your desk, especially if you have a standing desk with motors.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on October 16, 2025

recommand products