Gimbal Exhaust Seal Pipe – Fits Mercury MerCruiser Alpha & Bravo (Replaces 41802)
Gimbal Exhaust Seal Pipe – Fits Mercury MerCruiser Alpha & Bravo (Replaces 41802) is backordered and will ship as soon as it is back in stock.
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Gimbal Exhaust Seal Pipe – Fits Mercury MerCruiser Alpha & Bravo (Replaces 41802) is backordered and will ship as soon as it is back in stock.
Product Details
This Gimbal Exhaust Seal Pipe – Fits Mercury MerCruiser Alpha & Bravo (Replaces 41802) is designed for MerCruiser Alpha One (Gen 1 & 2) and Bravo sterndrives manufactured from 1983 and onward. It creates a secure seal between the Y-pipe and the gimbal housing, preventing exhaust and water leaks.
It is a direct replacement for Mercury Marine 41802, GLM 86217, and SEI Marine 9F-116-07.
- Installs between the exhaust Y-pipe and the gimbal housing.
- Engineered from durable rubber to withstand the marine environment.
- Includes one seal as pictured.
Part Number Matrix
Use this matrix to confirm equivalent references across OEM and aftermarket.
| Brand | Part Number |
|---|---|
| Mercury Marine | 41802 |
| GLM | 86217 |
| SEI Marine | 9F-116-07 |
Engine & Model Compatibility
Confirm your engine model/year in the table below.
For Mercury MerCruiser owners, this part fits a wide range of Alpha and Bravo drive configurations, as well as specific engine models detailed below.
| Brand | Model | Rated HP | Stroke | Years | OEM Part No. | Notes |
|---|---|---|---|---|---|---|
| Mercury MerCruiser | Alpha One (Gen. I) | 4-Stroke | 1983–1990 | 41802 | Sterndrive & Transom Assembly | |
| Mercury MerCruiser | Alpha One (Gen. II) | 4-Stroke | 1991–1995 | 41802 | ||
| Mercury MerCruiser | Alpha One (Gen. II) | 4-Stroke | 1996–1997 | 41802 | ||
| Mercury MerCruiser | Alpha One (Gen. II) | 4-Stroke | 1998 and Up | 41802 | ||
| Mercury MerCruiser | Bravo One | 4-Stroke | Various | 41802 | ||
| Mercury MerCruiser | Bravo Two | 4-Stroke | Various | 41802 | ||
| Mercury MerCruiser | Bravo Three | 4-Stroke | Various | 41802 | ||
| Mercury MerCruiser | Bravo X One, Two, Three | 4-Stroke | Various | 41802 | ||
| Mercury MerCruiser | Bravo XR One | 4-Stroke | Various | 41802 | ||
| Mercury MerCruiser | Bravo XR Three | 4-Stroke | Various | 41802 | ||
| Mercury MerCruiser | Bravo XR Sportmaster | 4-Stroke | Various | 41802 | ||
| Mercury MerCruiser | Bravo XZ One | 4-Stroke | Various | 41802 | ||
| Mercury MerCruiser | Blackhawk | 4-Stroke | 1994–1995 | 41802 | ||
| Mercury MerCruiser | Hi Performance Transom | 4-Stroke | Various | 41802 | ||
| Mercury MerCruiser | Integrated Transom | 4-Stroke | Various | 41802 |
| Brand | Model | Rated HP | Stroke | Years | OEM Part No. | Notes |
|---|---|---|---|---|---|---|
| Mercury MerCruiser | 4.3L Carb Alpha/Bravo | 4.3L | 4-Stroke | Various | 41802 | |
| Mercury MerCruiser | 4.3L MPI Alpha/Bravo | 4.3L | 4-Stroke | Various | 41802 | |
| Mercury MerCruiser | 4.3L EFI (GEN+) TBI GM 262 V-6 | 4.3L | 4-Stroke | Various | 41802 | |
| Mercury MerCruiser | 5.0L Carb Alpha/Bravo | 5.0L | 4-Stroke | Various | 41802 | |
| Mercury MerCruiser | 5.0L MPI Alpha/Bravo | 5.0L | 4-Stroke | Various | 41802 | |
| Mercury MerCruiser | 5.7L Carb Alpha/Bravo | 5.7L | 4-Stroke | Various | 41802 | |
| Mercury MerCruiser | 350 MAG MPI Alpha/Bravo | 350 MAG | 4-Stroke | Various | 41802 | |
| Mercury MerCruiser | 350 MAG MPI Horizon Alpha/Bravo | 350 MAG | 4-Stroke | Various | 41802 | |
| Mercury MerCruiser | 377 MAG MPI Bravo | 377 MAG | 4-Stroke | Various | 41802 | |
| Mercury MerCruiser | MX 6.2L MPI Bravo | 6.2L | 4-Stroke | Various | 41802 | |
| Mercury MerCruiser | MX 6.2L MPI Horizon Bravo | 6.2L | 4-Stroke | Various | 41802 | |
| Mercury MerCruiser | 496 MAG (Base & H.O. Models) | 496 MAG | 4-Stroke | Various | 41802 | |
| Mercury MerCruiser | 8.2L MAG (Base & H.O. Models) | 8.2L | 4-Stroke | Various | 41802 | |
| Mercury MerCruiser | CMD 1.7 MI/MS 120 I/L4 | 120 | 4-Stroke | Various | 41802 | |
| Mercury MerCruiser | 350 MPI Alpha | 350 | 4-Stroke | Various | 41802 |
Technical Specs
- Product Type
- Exhaust Seal / O-Ring
- Installation
- Seals Y-pipe to Gimbal Housing
- Housing Material
- Rubber
What’s in the Box
- 1 x Seal (41802)
Installation Notes
This seal is installed where the exhaust Y-pipe passes through the gimbal housing on the transom assembly. Proper seating is critical to prevent exhaust and water leaks into the bilge. Ensure the surfaces are clean and free of old material before installing the new seal. Professional installation is recommended, especially if you are unfamiliar with sterndrive service procedures.
Troubleshooting & FAQ
How do I know if this exhaust seal needs replacing?
Signs of a failed gimbal exhaust seal include water leaking into the bilge area, especially when the engine is running, an unusually loud exhaust note, or visible exhaust fumes inside the engine compartment. Corrosion or damage to the exhaust Y-pipe or gimbal housing can also indicate a leak.
Will this fit my specific Alpha One drive?
This seal fits Alpha One Generation I (1983-1990) and Generation II (1991 and up) drives. Please consult the compatibility table to confirm your drive and engine model are listed before ordering.
How often should this seal be replaced?
There is no fixed service interval, but the seal should be inspected whenever the sterndrive is removed for service and replaced as a preventative measure or if any signs of wear, hardening, or cracking are present.
Is any special tool required for installation?
While no highly specialized tools are required, installation requires removing the sterndrive from the transom assembly. This process involves standard marine mechanic tools and knowledge of sterndrive systems. Refer to your official service manual for detailed instructions.
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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