Quicksilver Lower Shift Cable Kit for MerCruiser Alpha One/MC‑I Sterndrives — 8M0176525, Complete Replacement with Seals

Quicksilver 8M0176525 is a complete lower shift cable replacement kit engineered to restore smooth, reliable shifting for select MerCruiser MC‑I, R, MR, Alpha One and Alpha One Gen II sterndrives.

If your boat’s lower shift cable is worn, corroded, or failed, this Quicksilver kit supplies the direct‑fit components needed to return dependable gear selection. Designed for MerCruiser sterndrives from 1978 onward, the kit includes the cable plus essential seals and connectors so you can carry out a straightforward replacement with basic tools. The cable features a layered construction that resists weather exposure and operates down to subzero temperatures.

Will this kit fit my MerCruiser sterndrive?

This lower shift cable kit is intended for select MerCruiser MC‑I, R, MR, Alpha One and Alpha One Gen II sterndrives built 1978 and newer. Confirm compatibility by checking your existing part number or matching the shift cable routing and fittings.

• Direct replacement for many Alpha One and MC‑I models
• Previous part number: 865436A03 for cross‑reference
• Check year and model of your sterndrive before ordering

How difficult is installation and what tools are required?

Installation is straightforward for mechanically inclined DIYers and marine technicians because the kit supplies all the small parts you’ll need. The old cable is removed and the new cable installed in reverse order using common hand tools; no special equipment is necessary.

• Typical tools: wrenches, screwdrivers, pliers
• Includes o‑rings, gaskets, connectors and bellows for full reassembly
• No soldering or cable splicing — replace rather than repair

What performance and durability can I expect?

The Quicksilver cable uses a layered construction designed to provide smooth actuation and long service life in marine environments. It’s built to perform reliably in wet, salty conditions and remains functional down to below 0°F, helping reduce shift hesitation in cold weather.

• Layered technology for consistent, low‑friction movement
• Weather and cold‑resistant materials for extended life
• Manufactured to meet Mercury Marine OEM specifications

Which parts are included in the kit and why are they important?

The kit bundles the lower shift cable plus all necessary sealing and connecting parts so you don’t need to hunt for separate components. Proper gaskets and bellows protect the cable entry and steering cavity from water intrusion while connectors ensure a secure mechanical link to the gear selector.

• Cable — main replacement component for shifting
• O‑rings and gaskets — prevent leaks and corrosion at joints
• Connectors and bellows — secure attachment and environmental protection

Who is this for? This Quicksilver 8M0176525 lower shift cable kit is aimed at boat owners, marine mechanics, and yacht maintenance teams who need a reliable, OEM‑grade replacement for select MerCruiser sterndrives. It’s especially suited for operators who want a complete parts set for a clean, long‑lasting installation and for anyone maintaining older MerCruiser models where the original cable has reached the end of its service life.