The Mercury Stretch-Belt Installation Tool – 91-8M0146862 turns a knuckle-busting job into a two-minute task. Designed for late-model Verado, V-6, and V-8 outboards that use single-use “stretch” alternator belts, this low-profile jig hooks over the flywheel and guides the belt onto the pulley as you bump the starter—no pry bars, no torn cords, and no risk of nicking that pricey belt.

Forged, zinc-plated steel shrugs off salt and the odd drop on the shop floor, while a molded hand pad gives you solid grip even with oily gloves. The tool’s stepped throat matches Mercury’s 5- and 6-rib pulleys, so alignment is perfect every time.

Why it belongs in your onboard toolkit

• Model-specific fit: engineered for 175-300 hp V-6 & V-8 FourStroke and 300 hp Verado blocks.

• Protects new belts: smooth radius prevents kinks or edge fray during install.

• One-hand operation: lets you keep the other hand on the ignition key for precise bumping.

• Built to last: corrosion-resistant finish and welded handle survive years of annual services.

Snap the tool in place, roll the belt on, and get back to the water instead of wrestling under the cowl.