Mercury – Quicksilver Sea Water Pump Impeller | Cooling System Part | Engine-Mounted 2-Piece Pump | 59362Q01

Overview

Your MerCruiser’s cooling system depends on a steady flow of water, and the Mercury Marine 59362Q01 Quicksilver Sea Water Pump Impeller makes sure that happens. Designed for MerCruiser engines with engine-mounted, two-piece plastic sea water pumps, this impeller is flexible, durable, and built for real-world boating. Its bonded center hub keeps the blades from tearing loose, so water flow stays strong and consistent. Whether you’re idling through the marina or running wide open, it keeps your engine cool and protected.

Key Features

• Purpose: Circulates water through your engine to prevent overheating.
• Material: Made from marine-grade elastomer that stays flexible in hot and cold conditions.
• Design: Bonded insert keeps the vanes secure and prevents separation under stress.
• Performance: Maintains steady pressure and flow through the entire cooling cycle.
• Durability: Handles heat, vibration, and water exposure without cracking or hardening.
• Ease of Service: Drops right into two-piece, engine-mounted sea water pump housings.

Engine & Boat Compatibility

• MerCruiser engines equipped with engine-mounted, two-piece plastic sea water pumps

Performance & Real-World Benefits

The 59362Q01 impeller is built to move water efficiently and quietly. Each flexible vane is engineered to hold its shape as it spins, keeping cooling flow constant even at low RPMs. That means more even temperatures, better protection for the engine block, and fewer overheating worries.

If your old impeller is showing cracks or stiffness, swapping it for a new OEM replacement is quick, inexpensive insurance. It restores pressure, improves flow, and helps keep your MerCruiser running cool through long days on the water.

Why Choose Mercury OEM

The Quicksilver 59362Q01 is an authentic Mercury Marine part, precision-molded for perfect fit and performance. Aftermarket versions might look similar but often use stiffer rubber or less precise molding, which can cause leaks or early wear.

Mercury impellers are tested for flexibility, balance, and endurance under marine heat and pressure. Choosing OEM means you’re using the same quality component your engine was built with — one that delivers dependable cooling trip after trip.

FAQ

Q1: What engines does this impeller fit?
It fits MerCruiser engines that use engine-mounted, two-piece plastic sea water pumps.

Q2: What’s the impeller made from?
A marine-grade flexible rubber that resists cracking and stays pliable under heat.

Q3: How often should I replace it?
Check it every season and replace it about every 200 hours or sooner if signs of wear appear.

Q4: What’s special about the bonded insert design?
It keeps the vanes attached to the hub, so water flow remains consistent and reliable.

Q5: Why OEM instead of aftermarket?
OEM ensures perfect fit, correct water flow, and materials built for real marine use.