Oil Seal – Fits MerCruiser Bravo 1, 2, 3 Drives (Replaces 26-807006, 26-18816, GLM 86730, OMC 0509335)

$15.95

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Oil Seal – Fits MerCruiser Bravo 1, 2, 3 Drives (Replaces 26-807006, 26-18816, GLM 86730, OMC 0509335) is backordered and will ship as soon as it is back in stock.

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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 is a high-quality aftermarket Oil Seal – Fits MerCruiser Bravo 1, 2, 3 Drives designed for MerCruiser Bravo One, Bravo Two, Bravo Three, Bravo XR, Bravo XZ, and Blackhawk stern drives from 1988 and newer. It ensures a reliable seal for the drive shaft housing, preventing oil leaks and water intrusion.

This part serves as a direct replacement for MerCruiser part numbers 26-807006 and 26-18816, GLM 86730, and OMC 0509335.

Installs in the Bravo Drive Yoke Assembly.
Constructed from durable rubber and metal to withstand the marine environment.
Package includes two seals for a complete service.

Part Number Matrix

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

Brand	Part Number
MerCruiser	26-807006
MerCruiser	26-18816
GLM	86730
OMC	0509335
Aftermarket	AM26-807006

Engine & Model Compatibility

Confirm your engine model/year in the table below.

For MerCruiser applications, also check the specific serial number ranges for the most accurate fitment confirmation.

Model	Years	OEM Part No.	Notes
Bravo I	1988 & Up	26-807006, 26-18816	Drive Shaft Housing
Bravo II	1988 & Up	26-807006, 26-18816	Drive Shaft Housing
Bravo III	1988 & Up	26-807006, 26-18816	Drive Shaft Housing
Bravo XR	1988 & Up	26-807006, 26-18816	Drive Shaft Housing
Bravo XZ	1988 & Up	26-807006, 26-18816	Drive Shaft Housing
Blackhawk	1994–1995	26-807006, 26-18816	All models

Model	Serial Number Range	OEM Part No.	Notes
Bravo	0F730000 THRU 0M100000	26-807006, 26-18816	Drive Shaft Housing
Bravo One	0M100001 THRU 0W249999	26-807006, 26-18816	Drive Shaft Housing
Bravo One	0W250000 & Up	26-807006, 26-18816	Drive Shaft Housing
Bravo Two	0F730000 THRU 0M100000	26-807006, 26-18816	Drive Shaft Housing
Bravo Two	0M100001 THRU 0W249999	26-807006, 26-18816	Drive Shaft Housing
Bravo Two	0W250000 & Up	26-807006, 26-18816	Drive Shaft Housing
Bravo Three	0F730000 THRU 0M100000	26-807006, 26-18816	Drive Shaft Housing
Bravo Three	0M100001 THRU 0W249999	26-807006, 26-18816	Drive Shaft Housing
Bravo Three	0W250000 & Up	26-807006, 26-18816	Drive Shaft Housing
Bravo X One	0M100001 THRU 0W249999	26-807006, 26-18816	Drive Shaft Housing
Bravo X One	0W250000 & Up	26-807006, 26-18816	Drive Shaft Housing
Bravo X Three	0M100001 THRU 0W249999	26-807006, 26-18816	Drive Shaft Housing
Bravo X Three	0W250000 & Up	26-807006, 26-18816	Drive Shaft Housing
Bravo X Two	0M100001 THRU 0W249999	26-807006, 26-18816	Drive Shaft Housing
Bravo X Two	0W250000 & Up	26-807006, 26-18816	Drive Shaft Housing
Bravo XR One	0L914990 THRU 0W239999	26-807006, 26-18816	Drive Shaft Housing
Bravo XR Sportmaster	0M052945 THRU 0M906877	26-807006, 26-18816	Drive Shaft Housing
Bravo XZ One	0L914990 THRU 0M999999	26-807006, 26-18816	Drive Shaft Housing
Integrated Transom	ALL THRU 0M052767	26-807006, 26-18816

Technical Specs

Product Type: Drive Shaft Housing Oil Seal
Installation: Bravo Drive Yoke Assembly
Dimensions: Shaft: 1.6875 in (42.86 mm), Outer: 2.2500 in (57.15 mm)
Weight: 0.09 lb (0.041 kg)
Package Dimensions: 2.24 × 2.24 × 0.63 in (56.9 × 56.9 × 16 mm)
Material: Rubber/Metal
Housing Color: Black
Application: For sealing drive shaft housing on Bravo drives

What’s in the Box

2 x Oil Seal (Replaces 26-807006)

Installation Notes

Ensure the engine is off and the drive is in a safe, stable position for service.
Remove the Bravo drive yoke assembly according to the manufacturer's service manual.
Carefully extract the old oil seal(s), taking note of their orientation. Avoid scratching the housing surface.
Thoroughly clean the seal housing and shaft to remove any old sealant, grease, or debris.
Lightly lubricate the new oil seal's inner and outer surfaces with appropriate marine grease.
Using a suitable seal driver or socket, press the new seal into the housing until it is fully and evenly seated.
Reinstall the yoke assembly and all related components, torquing fasteners to the specified values.
After reassembly, check for leaks before returning the vessel to service.

Troubleshooting & FAQ

How do I know if this oil seal will fit my Bravo drive?

This seal fits most MerCruiser Bravo drives from 1988 and newer. Verify compatibility by checking your model and year against the tables provided, or by matching your existing part number to the references in the 'Part Number Matrix'. The serial number range table offers the most precise fitment validation.

What are the signs of a failing drive shaft oil seal?

Common signs include visible oil leaking from the drive yoke area, a milky or emulsified appearance in your drive oil (indicating water intrusion), or a consistently low drive oil level.

Can I install just one seal if the package contains two?

The package includes two seals because some specific drive yoke assemblies require two seals for a complete and proper installation. Always consult your service manual to determine if one or two seals are needed for your specific model. It is best practice to replace them as a set if required.

What is the recommended replacement interval for this seal?

There is no fixed interval, but oil seals should be inspected during regular annual service or anytime the drive unit is removed. It's recommended to replace them proactively every few years or immediately if any signs of wear, hardening, or leakage are detected.

Is any special tool required for installation?

While not strictly necessary, using a proper seal driver tool is highly recommended to ensure the seal is pressed in evenly without damage. Using an appropriately sized socket can also work. Avoid using a hammer directly on the seal.

What is the difference between part number 26-807006 and 26-18816?

Part number 26-18816 is a superseded (older) part number for 26-807006. They are functionally identical and interchangeable. This aftermarket seal replaces both.

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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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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