Transom Seal Bellows Kit – Fits Volvo Penta SX/DP & OMC Cobra Stern Drives (Replaces 3854127, 3841481, 911826)

Transom Seal Bellows Kit – Fits Volvo Penta SX/DP & OMC Cobra Stern Drives (Replaces 3854127, 3841481, 911826)

This transom seal bellows kit is designed for a wide range of Volvo Penta SX and DP series stern drives, including SX-S, SX-C, SX-R, SX-M, and DP-S models. It is also compatible with OMC Cobra sterndrive applications from 1986–1993. The kit provides a complete set of components to replace the critical rubber bellows that prevent water intrusion at the transom.

This kit is a direct aftermarket replacement for Volvo Penta part numbers 22197130, 23075752, and 3841481; OMC part number 3854127; Sierra part number 18-2765; CEF part number 500514K; and SLP part number 43.932.60.

• Includes U-Joint, Exhaust, and Shift Cable bellows for a complete service.
• Comes with a new gimbal bearing and outdrive mounting gasket kit.
• Manufactured to OEM specifications in an ISO9002 certified factory.

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.

Volvo Penta

OMC (Johnson/Evinrude)

Technical Specifications

Package Contents

• 1 x U-Joint Bellows with Clamp (Replaces 3854127, 3841481, 18-2765, 22197130)
• 1 x Exhaust Bellows with Clamp (Replaces 3850426, 0767724, 18-1074, 9-72711)
• 1 x Shift Cable Bellows (Replaces 911826, 89210, 18-2763)
• 1 x Gimbal Bearing (Replaces 3853807, 18-2100, 9-72410, 21905, 0983937, 30-60794A4)
• 1 x Outdrive Mounting Gasket Kit (Replaces 508105)

Installation Guide

1. Safety First: Disconnect the boat's battery before starting any work.
2. Remove Outdrive: Carefully detach the sterndrive from the transom assembly according to your manufacturer's service manual.
3. Remove Old Components: Detach the clamps and remove the old U-Joint, exhaust, and shift cable bellows.
4. Extract Gimbal Bearing: Use a slide hammer or bearing puller to remove the old gimbal bearing from the housing.
5. Clean Surfaces: Thoroughly clean all mating surfaces on the transom assembly, removing any old sealant or corrosion.
6. Install New Bearing: Press the new gimbal bearing into place, ensuring it is properly seated.
7. Install Bellows: Fit the new shift cable, exhaust, and U-joint bellows. Secure them with the new clamps, ensuring a watertight seal.
8. Reinstall Outdrive: Place the new outdrive mounting gasket and reinstall the sterndrive assembly.
9. Final Checks: Reconnect the battery. Once in the water, check for any leaks around the transom assembly.

Troubleshooting & FAQ

How do I confirm this kit fits my engine?

This kit is designed for Volvo Penta SX/DP series and OMC Cobra stern drives from 1986–1993 (without cone clutch). To ensure compatibility, please compare your existing part numbers with those listed in our "Part Number Cross-Reference" table, such as 3854127, 3841481, or 911826. Also, check your model against the "Compatible Engine Models" chart.

What are the signs that my bellows need replacing?

Common signs of failure include visible cracks, splits, or perishing of the rubber bellows. You may also find water in your bilge, which is a critical indicator of a leak. A grinding noise when turning the drive may point to a failed gimbal bearing, which is included in this kit.

How often should I replace my transom bellows?

As a preventative maintenance measure, it is recommended to inspect bellows annually for any signs of wear or damage. Replacement is typically advised every 3-5 years, depending on usage and environmental conditions (saltwater vs. freshwater), or immediately if any issues are found.

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.