U-Joint Bellows for Volvo Penta SX/DP-S & OMC Cobra
ThisU-Joint Bellows is designed for Volvo Penta and OMC sterndrive systems, serving as a direct replacement for Volvo Penta part numbers 22197130, 23075752, 3841481, 3854127 and OMC part numbers 983973, 987467, 3854127. It protects the universal joint assembly from water intrusion.
Constructed from a high-grade marine rubber compound, this component is engineered to withstand harsh marine environments. The accordion-style design accommodates the natural movement of the stern drive to maintain a secure seal.
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Compatibility: Fits Volvo Penta SX/DP-S series (1994–Present) and OMC Cobra clutch dog models (1986–1993).
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Complete Kit: Includes the U-joint bellows and a corresponding 316 stainless steel hose clamp.
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Function: Prevents water from entering the U-joint and drive shaft area, which is critical for preventing corrosion and mechanical failure.
Part Number Cross-Reference
Use this table to confirm equivalent part numbers across OEM andbrands.
Brand |
Part Number |
Volvo Penta |
23075752 |
Volvo Penta |
22197130 |
Volvo Penta |
3841481 |
Volvo Penta |
3854127 |
OMC |
983973 |
OMC |
987467 |
OMC |
3854127 |
Sierra |
18-2765 |
GLM |
89200 |
Mallory |
9-72707 |
CEF |
500514K |
SEI Marine |
9A-109-02 |
Compatible Engine Models
Confirm your engine model/year in the table below.
Brand |
Model Series |
Years |
Volvo Penta |
SX-S, SX-C1, SX-C2, SX-R, SX-R1, SX-R2, SX-A |
1994–Present |
Volvo Penta |
SX-M, SX-M1 |
1994–Present |
Volvo Penta |
DP-S, DP-SM, DPS-A, DPS-B |
1994–Present |
OMC |
All Clutch Dog Cobra models |
1986–1993 |
Technical Specifications
Specification |
Value |
Material |
High-grade marine rubber |
Color |
Black |
Length |
137mm (5.39 inches) |
Outer Diameter |
107-110mm (4.21-4.33 inches) |
Inner Diameter |
92-98mm (3.62-3.86 inches) |
Weight |
350g (0.77 lbs) |
Operating Temperature |
-10°C to +80°C (14°F to 176°F) |
Clamp Material |
316 Stainless Steel |
Installation Location |
Transom Shield Assembly |
Package Contents
- 1x U-Joint Bellows
- 1x 316 Stainless Steel Hose Clamp
- Note: This is a single kit sale as shown in the product image.
Installation Guide
⚠️ Professional installation is highly recommended. This process requires specialized tools and knowledge of sterndrive systems to ensure a watertight and secure fit.
- Disconnect the battery and trim the sterndrive to the full "up" position.
- Remove the old bellows and clamp, taking care not to damage the transom shield or drive housing.
- Thoroughly clean all mating surfaces on the transom shield and drive. Remove any old adhesive or sealant.
- Apply a suitable marine-grade adhesive (such as 3M 847 or equivalent) to the mounting surfaces.
- Install the new bellows, ensuring it is properly seated on both the transom and drive ends.
- Position the new stainless steel clamp correctly and tighten it to the manufacturer's recommended torque specification.
- Allow the adhesive to cure completely as per the manufacturer's instructions before exposing it to water.
- After curing, lower the drive and reconnect the battery. Inspect for any leaks before operating the vessel.
Troubleshooting & FAQ
Q: How often should I replace my U-Joint Bellows?
A: It is recommended to replace the bellows every 2 years or 500 hours of operation, whichever comes first. For boats used in saltwater, more frequent inspection (at least annually) is advised due to the corrosive environment.
Q: Can I install this myself?
A: While installation may be possible for experienced mechanics, professional installation is strongly recommended. This part is critical for preventing water damage, and incorrect installation can lead to catastrophic failure. Specialized tools are often required for proper fitting and tensioning.
Q: What happens if the bellows fails?
A: A failed or leaking bellows will allow water to enter the sterndrive housing. This can quickly lead to severe damage to the U-joints, gimbal bearing, and other internal components, resulting in costly repairs.
Q: Is this compatible with my specific engine?
A: This bellows fits all Volvo Penta SX and DP-S series stern drives from 1994-present, and all OMC Cobra clutch dog models from 1986-1993. Please check your engine's part number against our cross-reference list to ensure an exact match.
Q: OEM vs. Aftermarket?
A: This listing is anreplacement 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 anreplacement part and is not an OEM component.
- Professional installation is recommended to ensure safety and optimal performance.
Why Choose JLM MARINE?
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Quality Assured: As a trusted manufacturer for over 20 years, we supply top marine brands globally.
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Fast Global Shipping: Free delivery worldwide in 5–15 days.
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Direct from Manufacturer: Competitive pricing without compromising quality.