Skip to product information
Usually ships in 2–4 business days.
Gimbal Housing Water Hose Tool Insert for MerCruiser 91-43579 41674T 18-9844
$56.09
Sale price
$56.09
Regular price
Available to Order
This Gimbal Housing Water Hose Tool & Insert is a flushing and winterizing tool compatible with MerCruiser sterndrives and matches OEM Part# 91-43579, 41674T, 18-9844.
Need help finding the right part? Talk with a parts expert today.
Parts Support Hours: Monday–Friday, 8:00 AM–5:00 PM CT
Live Chat: Available 24/7
I needed a forklift part and wasn’t sure which one fit. They asked for the model and serial number, got back to me quickly, and made sure I ordered the right one. Really helpful.
Randy W. — Verified customer
Product Overview
This Gimbal Housing Water Hose Tool & Insert allows you to easily flush your MerCruiser outdrive with fresh water. Designed for boat owners and mechanics, this tool connects directly to the gimbal housing to provide a secure water feed for winterizing or post-use rinsing. The included insert ensures a tight seal for efficient water flow.
Key Features & Performance
- Provides a direct water connection to the gimbal housing for flushing
- Includes both the tool body and sealing insert for a complete kit
- Durable construction resists corrosion from saltwater use
- Quick-connect design attaches in seconds without special tools
- Compatible with standard garden hose fittings
- Helps prolong outdrive life by removing salt and debris
Common Uses
- Flushing outdrive after boating in salt or brackish water
- Winterizing the cooling system with antifreeze
- Testing water pump operation on land
- Connecting a hose for periodic maintenance
Technical Specifications
- Part Number(s): 91-43579, 41674T, 18-9844
Frequently Asked Questions
Q: Is this tool compatible with all MerCruiser models? A: This tool fits most MerCruiser sterndrives with a gimbal housing water hose port; verify your model year and configuration.
Q: Can I use this tool with a standard garden hose? A: Yes, the tool accepts a standard 3/4-inch garden hose thread for easy connection.
Product appearance and specifications may vary slightly by batch. Compatibility may vary by serial number. Verify fitment before purchase.