Transom Seal Bellows Kit – Fits Volvo Penta SX/DP & OMC Cobra (Replaces 3854127, 22197130, 3841481)

$87.00

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Transom Seal Bellows Kit – Fits Volvo Penta SX/DP & OMC Cobra (Replaces 3854127, 22197130, 3841481) is backordered and will ship as soon as it is back in stock.

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Product Details

This Transom Seal Bellows Kit – Fits Volvo Penta SX/DP & OMC Cobra Stern Drives (Replaces 3854127) provides a complete, watertight seal between the transom and the outdrive assembly. It is designed specifically for Volvo Penta SX and DP series stern drives (1994–2006, non-cone clutch) and OMC Cobra stern drives (1986–1993). This prevents water intrusion, protecting critical gimbal bearings, U-joints, and drive components.

The kit serves as a direct aftermarket replacement for Volvo Penta part numbers 22197130, 23075752, and 3841481, as well as OMC references 3854127, 983973, and 987467.

Engineered for direct replacement with simple clamp-on fittings.
Constructed from durable, marine-grade CR rubber to resist saltwater and oil.
Includes essential high-grade SS316 stainless steel clamps and clips for secure attachment.

Part Number Matrix

Use this matrix to confirm equivalent references across OEM and aftermarket brands.

Brand	Part Number
Volvo Penta	22197130 / 23075752 / 3841481
OMC	3854127 / 983973 / 987467
Sierra	18-2765
CEF	500514K

Engine & Model Compatibility

Confirm your engine model and year in the table below to ensure accurate fitment.

For Volvo Penta models, this kit fits various non-cone clutch drives from 1994–2006.

For OMC models, this kit is compatible with Cobra drives from 1986–1993 without a cone clutch.

Brand	Model	Rated HP	Stroke	Years	OEM Part No.	Notes
Volvo Penta	SX	Various	Various	1994–2006	22197130/23075752/3841481	Non-cone clutch models only
Volvo Penta	SX-S	Various	Various	1994–2006	22197130/23075752/3841481	Non-cone clutch models only
Volvo Penta	SX-C	Various	Various	1994–2006	22197130/23075752/3841481	Non-cone clutch models only
Volvo Penta	SX-R	Various	Various	1994–2006	22197130/23075752/3841481	Non-cone clutch models only
Volvo Penta	SX-M	Various	Various	1994–2006	22197130/23075752/3841481	Non-cone clutch models only
Volvo Penta	DP-S	Various	Various	1994–2006	22197130/23075752/3841481	Non-cone clutch models only
OMC	Cobra	Various	Various	1986–1993	3854127/983973/987467	Without cone clutch

Technical Specs

Product Type: Transom Seal Bellows Kit
Installation: Direct replacement with clamp-on fitting
Connection: Clamp-on
Housing Material: Marine-grade rubber (CR material)
Housing Color: Black
Fitting Type: Bellows with stainless steel clamps
Warranty: 1 Year (aftermarket)
Other Technical Attributes: Manufactured to OEM specifications; stainless steel SS316 clamps and clips

What’s in the Box

1 x U-Joint Bellows with Clamp (Replaces 3854127/3841481/22197130)
1 x Exhaust Bellows with Clamp (Replaces 3850426/914036/767724)
1 x Shift Cable Bellows (Replaces 911826)
1 x Seal with Gasket Kit (Replaces 508105)
1 x Gimbal Bearing (Replaces 3853807/983937)
2 x Hose Clamps and Clips (SS316 stainless steel)

Installation Notes

Disconnect the boat's battery and trim the outdrive to the "up" or "trailer" position.
Remove the stern drive assembly from the transom shield according to your service manual.
Carefully remove the old clamps and cut away the old U-joint, exhaust, and shift cable bellows.
Inspect the gimbal bearing and remove it using a slide hammer puller if replacement is needed.
Clean all mating surfaces on the transom housing and bell housing thoroughly.
Install the new gimbal bearing, ensuring it is properly seated.
Fit the new shift cable bellow, followed by the exhaust and U-joint bellows.
Secure all new bellows with the provided stainless steel clamps, ensuring they are tight and properly positioned.
Re-install the stern drive assembly, following the reverse order of removal.
Once assembled, leak-test the installation in the water and check for proper shift and steering operation.

Troubleshooting & FAQ

How do I know if this kit fits my specific engine model?

This kit is designed for a range of Volvo Penta SX/DP and OMC Cobra drives. The best way to confirm is by checking your model and year against the compatibility table provided. Also, cross-reference your existing part numbers with those listed in our Part Number Matrix.

What are the signs that my old transom seal is failing?

Common signs include visible cracks or tears in the rubber bellows, water inside the bellows when inspected, a stiff or noisy gimbal bearing, or water leaking into the bilge area from the transom assembly. Regular inspection during maintenance is key.

What is the difference between the U-joint and exhaust bellows?

The U-joint bellows (or drive bellow) protects the universal joints that connect the engine to the outdrive. The exhaust bellow routes engine exhaust through the outdrive. Both are critical for preventing water intrusion.

How often should transom bellows be replaced?

As a preventative maintenance item, most manufacturers recommend inspecting bellows annually and replacing them every 3–5 years, depending on usage (freshwater vs. saltwater) and storage conditions. If you see any signs of wear, replace them immediately.

Are special tools required for this installation?

Yes, replacing the gimbal bearing typically requires a slide hammer with a bearing puller attachment. You may also need a special bellows adhesive and clamp installation tools depending on the specific drive model. A full set of mechanic's tools is a must.

Can I replace just one failed bellows instead of the whole kit?

While possible, it is not recommended. The bellows are made of similar materials and exposed to the same conditions, so if one has failed, the others are likely near the end of their service life. Replacing the entire kit at once is more cost-effective and prevents repeated labor.

OEM vs. Aftermarket?

This listing is an aftermarket replacement (not OEM). Built to OEM-level specifications with comparable materials. Manufactured in an ISO 9002 facility, batch-inspected for consistency.

Shipping speed & cost?

We ship worldwide quickly—typical transit 5–15 days. Standard shipping is free; expedited options appear at checkout where available.

Warranty & returns?

Covered by a 1-year warranty against manufacturing defects under normal use. If issues arise, contact support with your order details. Returns are accepted within our standard window (unused & in original condition). See our policy page or reach out for instructions.

Safety & Important Info

Verify images and specifications against your original part. If anything differs—even if your model appears compatible—do not purchase.
This is an aftermarket replacement, not an OEM component.
Professional installation is recommended for safety and performance.

About Sea Sierra

Pro-Grade Standards — We supply marine parts engineered to OEM-level tolerances and tested for real-world conditions.
Fast Global Fulfillment — Free standard delivery to most regions in 5–15 days.
Manufacturer-Direct Value — Fair pricing without compromising on materials or QC.

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