Bell Housing Installation Gasket Kit – Fits MerCruiser Bravo Sterndrive (Replaces 16755Q1)
This gasket and seal kit is designed for MerCruiser Bravo I, II, and III sterndrive applications. It provides all the necessary seals for a proper and leak-free installation of the bell housing to the gimbal housing.
This kit is a direct replacement for MerCruiser part number 16755Q1 and other equivalents, manufactured to meet or exceed OEM specifications for material and performance.
- Installation Method: Direct replacement
- Compatible Models: All MerCruiser Bravo Sterndrives
- Package Includes: 1 Bell Housing Seal, 8 O-Rings
Part Number Cross-Reference
Use this table to confirm equivalent part numbers across OEM and aftermarket brands.
Brand |
Part Number |
MerCruiser |
16755Q1 |
MerCruiser |
16755 |
MerCruiser |
16755A1 |
Sierra |
18-2615 |
GLM |
39640 |
Mallory |
9-62604 |
Compatible Engine Models
Confirm your engine model/year in the table below. For Mercury owners, here’s a guide to help you identify your engine’s serial/model: Mercury Serial Number Guide. You can also review exploded diagrams to verify part numbers: Mercury Parts Diagrams & Catalog.
Brand |
Model |
OEM Part No. |
MerCruiser |
Bravo I |
16755Q1 |
MerCruiser |
Bravo II |
16755Q1 |
MerCruiser |
Bravo III |
16755Q1 |
MerCruiser |
Bravo XR One |
16755Q1 |
MerCruiser |
Bravo XZ One |
16755Q1 |
MerCruiser |
Bravo XR Three |
16755Q1 |
MerCruiser |
Bravo X One |
16755Q1 |
MerCruiser |
Bravo X Two |
16755Q1 |
MerCruiser |
Bravo X Three |
16755Q1 |
MerCruiser |
Bravo XR Sportmaster |
16755Q1 |
MerCruiser |
Integrated Transom |
16755Q1 |
Technical Specifications
Specification |
Value |
Product Type |
Bell Housing Installation Gasket Kit |
Installation |
Direct replacement |
Dimensions |
108 × 55 × 7 mm (4.25 × 2.17 × 0.28 in) |
Weight |
17.9 g (0.63 oz) |
Other Technical Attributes |
Manufactured to OEM specifications using the exact same material as the originals |
Package Contents
- 1 x Bell Housing Seal
- 8 x O-Rings
Installation Guide
- Ensure the boat is secure and the battery is disconnected. Place the sterndrive in the full trim-down position.
- Remove the rear cover and disconnect the speedometer hose (if equipped).
- Remove the six nuts that secure the sterndrive to the bell housing. Be prepared to support the drive's weight.
- Carefully slide the sterndrive off the bell housing, ensuring the shift shaft doesn't bind.
- Remove the old gasket, O-rings, and oil seal from the bell housing and drive shaft passage.
- Thoroughly clean all mating surfaces, removing any old adhesive or debris.
- Install the new gasket and seals from the kit. Lightly grease the O-rings and shaft splines.
- Carefully align and reinstall the sterndrive, ensuring the drive shaft, water tube, and shift shaft align correctly.
- Tighten the six nuts to the manufacturer's specified torque sequence and value.
- Reconnect the speedometer hose and install the rear cover. Test for proper operation on the water.
Troubleshooting & FAQ
How do I confirm this fits my MerCruiser Bravo drive?
This kit is designed for all MerCruiser Bravo models (I, II, III, X, XR, etc.). To be certain, cross-reference your existing part number with the numbers listed in our Part Number Cross-Reference table, such as MerCruiser 16755Q1.
What are the signs that my bell housing gasket needs replacement?
Common signs include water leaking into the bilge from the transom assembly, water in the gear lube, or visible corrosion around the mating surfaces. A worn seal may be discovered during routine sterndrive removal and inspection.
Is this kit all I need to reinstall my bell housing?
This kit provides all the essential seals and O-rings for the bell housing installation. You will need standard mechanic's tools and potentially a gimbal bearing alignment tool to ensure proper driveshaft alignment upon reinstallation.
OEM vs. Aftermarket?
This listing is an aftermarket replacement 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.
How fast do you ship and how much does it cost?
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.
What is your warranty and return policy?
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 an aftermarket replacement 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.