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

$19.86

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

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Product Details

This is a direct-replacement Gimbal Bearing Oil Seal designed to fit a wide range of Volvo Penta and OMC Cobra sterndrives. It is compatible with Volvo Penta SX-C, SX-M, SX-R, SX-S, and DP-SM models from 1994 and newer, as well as OMC Cobra Sterndrive models from 2.3L to 8.2L manufactured between 1986 and 1993. The seal prevents water intrusion, protecting the gimbal bearing from premature failure.

This part provides a direct interchange for several OEM and aftermarket numbers, including OMC 3852548/911795, Volvo Penta 3852548, Sierra 18-8349, and GLM 86560.

Engineered for a precise press-fit installation.
Connects the drive shaft to the gimbal bearing, ensuring a watertight seal.
Protects the gimbal bearing from damaging water and debris intrusion.

Part Number Matrix

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

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

Engine & Model Compatibility

Confirm your engine model/year in the table below.

For Volvo Penta, this seal fits SX and DP-SM outdrives from 1994 and newer.

Brand	Model	Rated HP	Stroke	Years	OEM Part No.
Volvo Penta	SX-C	Various	4-Stroke	1994 and newer	3852548
Volvo Penta	SX-M	Various	4-Stroke	1994 and newer	3852548
Volvo Penta	SX-R	Various	4-Stroke	1994 and newer	3852548
Volvo Penta	SX-S	Various	4-Stroke	1994 and newer	3852548
Volvo Penta	DP-SM	Various	4-Stroke	1994 and newer	3852548

For OMC, this seal is specified for Cobra Sterndrive models from 1986 through 1993 across all engine displacements.

Brand	Model	Rated HP	Stroke	Years	OEM Part No.
OMC	Cobra Sterndrive 2.3L	Various	4-Stroke	1986–1993	911795/3852548
OMC	Cobra Sterndrive 2.5L	Various	4-Stroke	1986–1993	911795/3852548
OMC	Cobra Sterndrive 3.0L	Various	4-Stroke	1986–1993	911795/3852548
OMC	Cobra Sterndrive 3.2L	Various	4-Stroke	1986–1993	911795/3852548
OMC	Cobra Sterndrive 4.3L	Various	4-Stroke	1986–1993	911795/3852548
OMC	Cobra Sterndrive 5.0L	Various	4-Stroke	1986–1993	911795/3852548
OMC	Cobra Sterndrive 5.7L	Various	4-Stroke	1986–1993	911795/3852548
OMC	Cobra Sterndrive 5.8L	Various	4-Stroke	1986–1993	911795/3852548
OMC	Cobra Sterndrive 7.4L	Various	4-Stroke	1986–1993	911795/3852548
OMC	Cobra Sterndrive 7.5L	Various	4-Stroke	1986–1993	911795/3852548
OMC	Cobra Sterndrive 8.2L	Various	4-Stroke	1986–1993	911795/3852548

Technical Specs

Product Type: Gimbal Bearing Oil/Grease Seal
Installation: Direct replacement, requires no modification
Connection: Drive shaft to gimbal bearing
Housing Material: Metal with rubber/synthetic sealing surface
Housing Color: Black/Silver
Dimensions: 1.375" Shaft × 2.187" Bore × 0.500" Width (35mm × 55.6mm × 12.7mm)
Fitting Type: Press fit
Function: Protects gimbal bearing from water intrusion

What’s in the Box

1 x Gimbal Bearing Oil Seal (Replaces 3852548/911795)

Installation Notes

Disconnect the boat's battery and follow all safety precautions.
Remove the sterndrive unit from the gimbal housing according to the manufacturer's service manual.
Pry out the old oil seal from the gimbal housing, taking care not to score the housing surface.
Thoroughly clean the seal mounting surface inside the gimbal housing.
Position the new seal squarely in the bore.
Using a suitable seal driver or large socket, gently and evenly press the new seal into place until it is fully seated.
Inspect the seal to ensure it is flush and not damaged.
Reinstall the gimbal bearing and sterndrive unit, torquing all fasteners to spec.

Troubleshooting & FAQ

How do I confirm this seal fits my specific engine?

Check the compatibility tables on this page. Verify your sterndrive's brand (Volvo Penta or OMC), model, and year range. If your model is listed, this seal is a direct replacement.

What are the signs of a failed gimbal bearing seal?

The most common signs are water found inside the universal joint bellows after removal, rust or corrosion on the universal joints, or a grinding/roaring noise from the gimbal area, which indicates the gimbal bearing itself has failed due to water intrusion.

When should this seal be replaced?

This seal should be replaced whenever the gimbal bearing is replaced. It is also good preventive maintenance to replace the seal if the sterndrive is removed for other service, especially on older vessels.

Is any special sealant needed during installation?

Generally, no additional sealant is required for the outer metal housing of the seal. However, some mechanics apply a light coat of gasket sealer or permatex to the outer edge as a precaution. Always consult your service manual.

What is the difference between this and an OEM part?

This is an aftermarket part built to meet or exceed original equipment manufacturer (OEM) specifications for fit, form, and function. It offers comparable performance and material quality at a better value.

Can I install this myself?

While installation is possible for experienced home mechanics, it requires removing the sterndrive and using a press or seal driver. To ensure a proper, leak-free fit and prevent damage, professional installation is recommended.

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

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Manufacturer-Direct Value — Fair pricing without compromising on materials or QC.

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