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Gimbal Bearing Oil Seal – Fits Volvo Penta SX & OMC Cobra Drives (Replaces 3852548, 911795)

Regular price $25.00
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Gimbal Bearing Oil Seal – Fits Volvo Penta SX & OMC Cobra Drives (Replaces 3852548, 911795) is backordered and will ship as soon as it is back in stock.


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You may return most new, unopened items within 7 days of delivery for a full refund. We'll also pay the return shipping costs if the return is a result of our error (you received an incorrect or defective item, etc.).

You should expect to receive your refund within four weeks of giving your package to the return shipper, however, in many cases you will receive a refund more quickly. This time period includes the transit time for us to receive your return from the shipper (5 to 10 business days), the time it takes us to process your return once we receive it (3 to 5 business days), and the time it takes your bank to process our refund request (5 to 10 business days).

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Delivery and Shipping

Free standard shipping on all orders under 1 KG

If you have any questions, feel free to email us at info@sierramarines.com, and we’ll get back to you within 20–36 hours.

Product Details

This high-quality Gimbal Bearing Oil Seal – Fits Volvo Penta SX & OMC Cobra Drives (Replaces 3852548, 911795) is designed for a precise fit on Volvo Penta (SX-C, SX-M, SX-R, SX-S, DP-SM) and OMC Cobra sterndrives manufactured from 1986 to the present. It provides a reliable barrier, sealing the gimbal bearing housing to prevent water intrusion and protect critical drive components.

This part serves as a direct interchange for OMC part numbers 911795 and 3852548, Volvo Penta 3852548, Sierra 18-8349, and GLM 86560.

  • Engineered as a direct OEM-equivalent replacement for straightforward installation.
  • Made from high-quality, oil-resistant rubber for durability and longevity.
  • Essential for protecting the gimbal bearing from damaging water and contaminants.

Part Number Matrix

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

Brand Part Number
Volvo Penta 3852548
OMC 3852548
OMC 911795
Sierra 18-8349
GLM 86560

Engine & Model Compatibility

Confirm your engine model/year in the table below.

Fits various Volvo Penta sterndrives including SX-C, SX-M, SX-R, SX-S, and DP-SM models from 1994–present.

Compatible with OMC Cobra sterndrives from 1986–1993 across all listed engine displacements (2.3L to 8.2L).

Brand Model Drive Type Years OEM Part No.
Volvo Penta SX-C Sterndrive 1994–present 3852548
Volvo Penta SX-M Sterndrive 1994–present 3852548
Volvo Penta SX-R Sterndrive 1994–present 3852548
Volvo Penta SX-S Sterndrive 1994–present 3852548
Volvo Penta DP-SM Sterndrive 1994–present 3852548
Brand Model Drive Type Years OEM Part No. Notes
OMC Cobra Sterndrive 2.3L Sterndrive 1986–1993 911795/3852548 All Cobra models
OMC Cobra Sterndrive 2.5L Sterndrive 1986–1993 911795/3852548 All Cobra models
OMC Cobra Sterndrive 3.0L Sterndrive 1986–1993 911795/3852548 All Cobra models
OMC Cobra Sterndrive 3.2L Sterndrive 1986–1993 911795/3852548 All Cobra models
OMC Cobra Sterndrive 4.3L Sterndrive 1986–1993 911795/3852548 All Cobra models
OMC Cobra Sterndrive 5.0L Sterndrive 1986–1993 911795/3852548 All Cobra models
OMC Cobra Sterndrive 5.7L Sterndrive 1986–1993 911795/3852548 All Cobra models
OMC Cobra Sterndrive 5.8L Sterndrive 1986–1993 911795/3852548 All Cobra models
OMC Cobra Sterndrive 7.4L Sterndrive 1986–1993 911795/3852548 All Cobra models
OMC Cobra Sterndrive 7.5L Sterndrive 1986–1993 911795/3852548 All Cobra models
OMC Cobra Sterndrive 8.2L Sterndrive 1986–1993 911795/3852548 All Cobra models

Technical Specs

Product Type
Gimbal Bearing Oil/Grease Seal
Installation
Direct OEM replacement
Shaft Size
1.375 inches (34.925 mm)
Outer Diameter
2.187 inches (55.55 mm)
Width/Thickness
0.500 inches (12.7 mm)
Material
High-quality oil-resistant rubber
Application
Seals gimbal bearing housing from water intrusion
Warranty
1 Year (varies by retailer)

What’s in the Box

  • 1 x Gimbal Bearing Oil Seal (3852548, 911795)

Installation Notes

  1. Ensure the engine is off, cool, and disconnected from the battery.
  2. Carefully remove the sterndrive assembly to gain access to the gimbal housing.
  3. Extract the old gimbal bearing and the worn oil seal. A slide hammer or puller tool is recommended.
  4. Thoroughly clean the seal seat inside the gimbal housing, removing any corrosion or debris.
  5. Apply a light coat of marine grease to the outer surface of the new oil seal.
  6. Using a suitable driver tool, press the new seal into the housing until it is flush and evenly seated.
  7. Reinstall the gimbal bearing, followed by the complete sterndrive assembly according to manufacturer specifications.
  8. Before operating the vessel, check for any signs of water leaks around the transom assembly.

Troubleshooting & FAQ

How do I know if this seal fits my sterndrive?

This seal is designed for Volvo Penta SX and DP-SM drives (1994–present) and OMC Cobra drives (1986–1993). To confirm fitment, please consult the Part Number Matrix and Engine & Model Compatibility tables on this page. Matching your old part number is the most reliable method.

What are the signs of a failed gimbal bearing oil seal?

Common symptoms include a roaring or grinding noise from the rear of the engine (especially when turning), water found inside the universal joint bellows, or visible rust and corrosion on the gimbal bearing itself upon inspection.

How often should this seal be replaced?

The gimbal bearing oil seal should be replaced whenever you replace the gimbal bearing or service the drive bellows. Proactive replacement during these services is recommended to prevent future water intrusion and bearing failure.

Can I damage the seal during installation?

Yes, improper installation can damage the seal. It is critical to use an appropriate seal driver or socket that matches the seal's outer diameter. Press it in evenly and avoid tilting it, as this can deform the seal and cause leaks. Do not strike the seal directly with a hammer.

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/specifications vs 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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