Speedometer Hose Coupling Kit – Fits MerCruiser Alpha One Gen 2 (Replaces 815956A1, 22-815956A1)

Speedometer Hose Coupling Kit – Fits MerCruiser Alpha One Gen 2 (Replaces 815956A1, 22-815956A1)

This speedometer hose coupling kit is designed for MerCruiser Alpha One Gen 2 sterndrive models from 1991–1997. It provides a reliable connection for your boat's speedometer system, ensuring accurate water pressure readings are transmitted from the pitot tube to the gauge.

This kit is a direct replacement for the following OEM part numbers: Mercury Marine/Quicksilver 815956A1 and Mercury Marine/Quicksilver 22-815956A1.

• Installation Method: Installs via a direct, screw-in connection.
• Housing Material: Made from durable, marine-grade black plastic.
• Function: Serves as the primary pitot tube connector/adapter for the speedometer hose.

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 Coupler connecting kit with zip tie (815956A1/22-815956A1)

Installation Guide

1. Safety First: Ensure the engine is completely turned off and the boat is secured on a trailer or lift.
2. Locate the Coupling: Identify the existing speedometer hose coupling on the sterndrive unit.
3. Disconnect Hose: Carefully detach the speedometer hose from the old coupling. Note its condition for any signs of wear.
4. Remove Old Coupling: Unscrew and remove the old coupling from the sterndrive.
5. Clean Surface: Clean the connection area on the sterndrive to remove any debris or sealant residue for a clean fit.
6. Install New Coupling: Screw the new coupling into place by hand until it is snug. Avoid overtightening to prevent damage.
7. Attach Hose: Firmly connect the speedometer hose to the new coupling's barb.
8. Secure Connection: Use the included zip tie to secure the hose onto the coupling for added security against leaks or disconnection.
9. Final Check: After installation, double-check that the connection is tight and properly seated before operating the vessel.

Troubleshooting & FAQ

Q: How do I know if this coupling kit will fit my MerCruiser?
A: This kit is specifically designed for MerCruiser Alpha One Gen 2 sterndrive models manufactured between 1991 and 1997. To ensure a correct fit, verify your sterndrive model and year. It is a direct replacement for OEM part numbers 815956A1 and 22-815956A1.

Q: What are the signs that my speedometer coupling has failed?
A: Common symptoms of a failed coupling include an inaccurate or completely non-functional speedometer gauge, even when the pitot tube is clear. You might also notice visible cracks, brittleness, or water leaks around the old coupling.

Q: Is this a genuine Mercury part?
A: This is a high-quality aftermarket part manufactured to meet or exceed original equipment (OEM) specifications. It offers the same fit and function as the genuine part, providing a reliable and cost-effective alternative.

Q: OEM vs. Aftermarket?
A: 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.

Q: How fast do you ship and how much does it cost?
A: 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.

Q: What is your warranty and return policy?
A: 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.