Name: Water Pump Repair Kit for Mercury Mariner 40 45 50 HP 4-Stroke 802502A1
Brand: Mercury
SKU: 5001594m
Price: 59.99 GBP
Availability: InStock

Water Pump Repair Kit for Mercury MerCruiser 40 45 50 hp | 802502A1 - 4Boats

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£59.99

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Water Pump Repair Kit 802502A1

For Mercury Mariner 40, 45, 50 HP 4-Stroke Outboards

Maintain optimal engine cooling and prevent overheating with this comprehensive water pump repair kit. Designed specifically for Mercury and Mariner 4-stroke 4-cylinder engines, this kit includes the essential components required to restore your cooling system's efficiency.

RELIABILITY: Engineered using high-grade elastomers and corrosion-resistant stainless steel to meet or exceed original equipment performance.

Key Features

✔ Direct fit for 4-cylinder 4-stroke blocks
✔ High-flow 6-blade neoprene impeller
✔ Includes stainless steel wear plate
✔ Complete gasket and O-ring set

Technical Specs

Impeller Blades:	6
Impeller OD:	78.3 mm
Impeller Height:	24.6 mm
Shaft Diameter:	19.2 mm
Material:	Neoprene / SS

Compatibility / Fitment Guide

Make/System	Model/Application	Serial Range
Mercury / Mariner	40 HP (4-Stroke) 4-Cylinder	0G231123 - 0T598999
Mercury / Mariner	45 HP (4-Stroke) Bodensee	0G231123 & Up
Mercury / Mariner	50 HP (4-Stroke) 4-Cylinder	0G231123 - 0T598999

OEM Cross Reference

Mercury Marine	802502A1, 802502Q1, 821354A2
Sierra Marine	18-3221
Mallory Marine	9-48301
GLM	12053

Questions & Answers

Is this a genuine original part?

This is a premium quality aftermarket replacement kit, precision-engineered to meet or exceed original Mercury Quicksilver standards for cooling performance.

How do I know if it is compatible?

This kit fits the standard 4-stroke 4-cylinder engines within the serial ranges listed above. Please note it is not for "Bigfoot" or Command Thrust models, which require a different kit.

What components are included in this kit?

The kit includes the 6-blade neoprene impeller (replaces 47-19453T), the stainless steel wear plate, upper and lower gaskets, and the required O-rings for a complete internal pump rebuild.

Note: 4boats.co.uk recommends verifying your engine's serial number against the fitment guide to ensure 100% compatibility before purchase.

For the products under £150 the shipping is £6.99.

Free delivery for most items over £150.

Why choose us

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Every order is checked by the 4Boats team. Contact us before ordering if you need help with part numbers, compatibility or availability.

Water Pump Repair Kit for Mercury Mariner 40 45 50 HP 4-Stroke 802502A1