Bell Housing Gimbal Water Hose Tool & Insert Kit – Fits MerCruiser Bravo 1, 2, 3 Drives (Replaces 91-43579, 41674T)

Bell Housing Gimbal Water Hose Tool & Insert Kit – Fits MerCruiser Bravo Drives

This specialized installation tool kit is designed for MerCruiser Bravo series sterndrive cooling systems. It includes a tapered insert tool and inserts for properly installing water inlet hoses on all Bravo drive models, ensuring a secure and leak-free fit.

This kit provides direct replacements for Mercury/MerCruiser part numbers 91-43579 / 8M0067547 (tool) and 41674T / 41674 (inserts), as well as Sierra 18-9844 (tool).

• Complete Kit: Includes one tapered installation tool and two conical inserts.
• Application: Specifically for installing the water inlet hose in the gimbal housing on MerCruiser Bravo sterndrives.
• Professional Grade: Ensures proper seating of the inserts to prevent water leaks and cooling system issues.

Part Number Cross-Reference

Use this table to confirm equivalent part numbers across OEM and aftermarket brands.

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.

Technical Specifications

Package Contents

• 1 x Tapered Insert Tool (Replaces 91-43579 / 8M0067547 / Sierra 18-9844)
• 2 x Insert Tool (Replaces 41674T / 41674)

Installation Guide

1. Ensure the sterndrive is trimmed up for access to the gimbal housing.
2. Remove the old water inlet hose and its retainers if they are still in place.
3. Clean the hose port in the gimbal housing thoroughly.
4. Place a new conical insert onto the tapered end of the installation tool.
5. Align the new water hose with the housing port.
6. Insert the tool and retainer into the hose and press firmly until the retainer seats squarely in the gimbal housing.
7. Carefully withdraw the tool, leaving the insert and hose securely installed.
8. Verify the hose is properly seated and free of kinks.

Troubleshooting & FAQ

How do I confirm this tool fits my engine?
This kit is designed specifically for MerCruiser Bravo sterndrives, including Bravo 1, 2, 3, and various X/XR models. Please review the "Compatible Engine Models" list and cross-reference your OEM part numbers (91-43579 for the tool, 41674T for the inserts) to ensure a match.

What is this tool actually used for?
This tool is essential for correctly installing the conical retainers used on the water inlet hose in the gimbal housing. Using it ensures the retainers are seated properly, preventing water leaks that can lead to overheating or water ingress into the bellows.

Are the inserts difficult to install?
The tool is designed to make installation straightforward. By placing the insert on the tapered tool, you can apply even pressure to push it into place without damaging the insert or the hose. Professional installation is still recommended if you are unfamiliar with the procedure.

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?

• Quality Assured: As a trusted manufacturer for over 20 years, we supply top marine brands globally.
• Fast Global Shipping: Free delivery worldwide in 5–15 days.
• Direct from Manufacturer: Competitive pricing without compromising quality.