Mercury – Quicksilver 8150264 Cotter Pin | Stainless Steel | Propeller Retention | 8150264

Overview

It’s the kind of part you don’t think about — until you lose it. The Quicksilver 8150264 Cotter Pin might be small, but it does an important job: keeping your propeller locked in place so every bit of power goes to the water, not to wasted motion.

Made from marine-grade stainless steel, this pin stands up to torque, vibration, and saltwater without bending or rusting. It’s simple, strong, and built exactly to Mercury’s specs. You slip it in, bend the ends, and it just works — season after season.

Key Features

• Purpose: Keeps the prop nut tight and your propeller secured under heavy load.
• Material: Hardened stainless steel for lasting strength and corrosion resistance.
• Testing: Proven to exceed Mercury Marine torque and stress standards.
• Marine Ready: Holds up against constant vibration, high RPM, and salt exposure.
• Fit & Quality: Made to OEM tolerances for proper alignment and long service life.

Engine & Boat Compatibility

• Mercury and Mariner outboards using cotter-pin prop retention systems
• Common on fishing boats, pontoons, and runabouts across multiple horsepower classes

Performance & Practical Benefits

A cotter pin doesn’t get much credit, but it’s what keeps your prop from walking off the shaft. The 8150264 is cut from tough stainless steel that won’t twist out of shape or seize from corrosion. It’s the kind of part you can trust after a long day on the water — tight, clean, and doing its job quietly in the background.

Because it’s an OEM fit, installation takes seconds and there’s no guesswork. Once in place, it stays put, giving you confidence to run hard without worrying about a loose prop nut. It’s one of those simple bits of maintenance that saves a lot of trouble later.

Why Buy OEM

Mercury doesn’t cut corners on small parts. Their cotter pins are tested under real marine loads — vibration, heat, and salt — to make sure they last. Aftermarket pins might look similar, but cheaper metals can bend, shear, or corrode faster.

Using an OEM pin means you’re using the same hardware Mercury installs on new engines. It fits right, locks tight, and won’t give you surprises when you’re miles from shore.

FAQ

Q1: What’s the job of this cotter pin?
A: It locks the prop nut so it can’t back off under torque or vibration.

Q2: What’s it made from?
A: Strong stainless steel that resists corrosion in both saltwater and freshwater.

Q3: Can I reuse it?
A: It’s best to replace it anytime you remove the prop — bending weakens the metal over time.

Q4: Does it fit all Mercury outboards?
A: It fits most Mercury and Mariner models that use a cotter-pin retention setup. Check your service manual to confirm.

Q5: Why choose Quicksilver OEM?
A: It’s the same part Mercury installs at the factory — proven fit, proven strength, and no guesswork.