Mercury – Quicksilver Water Pump Base Repair Kit | Cooling System Component | Marine Composite | 57234T1

Overview

A strong cooling system keeps your sterndrive running cool and reliable. The Mercury Marine 57234T1 Quicksilver Water Pump Base Repair Kit gives you the parts you need to restore that performance on MerCruiser MC-1 and R drives. This three-piece OEM kit includes a new molded pump base, gasket, and o-ring — all made from durable, marine-grade materials designed to handle pressure, heat, and vibration. It’s a simple, dependable fix to keep your cooling system flowing efficiently and your engine protected from overheating.

Key Features

• Purpose: Rebuilds and seals the water pump base to maintain steady cooling flow.
• Material: Made from reinforced marine composite for excellent strength and corrosion resistance.
• Contents: Includes pump base, o-ring, and gasket for a complete repair.
• Performance: Restores proper water pressure and circulation to prevent overheating.
• Durability: Designed to withstand constant water exposure, heat, and marine vibration.
• Ease of Use: Installs easily using standard tools and factory alignment points.

Engine & Boat Compatibility

• MerCruiser MC-1 drives
• MerCruiser R drives

Performance & Real-World Benefits

The 57234T1 kit rebuilds the foundation of your cooling system. Over time, heat and corrosion can cause the pump base to warp or crack, leading to leaks and weak water flow. This kit restores a tight seal and proper alignment, allowing your impeller to perform at its best.

Once installed, you’ll notice steadier engine temperatures and consistent water flow, even during long runs. It’s a quick, affordable way to prevent overheating and extend the life of your sterndrive.

Why Choose Mercury OEM

The Quicksilver 57234T1 is a genuine Mercury Marine replacement kit, built to fit perfectly and perform reliably. Aftermarket parts can vary in shape or material, which can cause leaks or poor alignment.

Mercury’s OEM kits are engineered and tested under real marine conditions for durability and exact fit. You get factory-level performance, dependable sealing, and long-term protection for your cooling system — all from the brand trusted by MerCruiser owners worldwide.

FAQ

Q1: What drives does this repair kit fit?
It fits MerCruiser MC-1 and R drives.

Q2: What’s included in the kit?
The kit includes a molded pump base, gasket, and o-ring — everything needed for replacement.

Q3: What materials are used?
Marine-grade composite materials that resist heat, corrosion, and vibration.

Q4: When should I replace the pump base?
If you see cracks, leaks, or low water pressure, it’s time to replace it — typically during regular impeller service.

Q5: Why OEM over aftermarket?
OEM kits are precision-made, fit correctly the first time, and last longer under marine operating conditions.