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

Name: Water Pump Repair Kit for Mercury Mariner 40 45 50 HP 4-Stroke 802502A1
Price: 59.99 GBP
Rating: 5 (1 reviews)

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.

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