---
product_id: 356770559
title: "Water pump kit 46-70941A3 Replaces Mercury/Mercruiser 4HP 4.5HP 7.5HP 9.8HP Sierra 18-3446"
brand: "ghmarine"
price: "¥9135"
currency: JPY
in_stock: true
reviews_count: 5
category: "G Hmarine"
url: https://www.desertcart.jp/products/356770559-water-pump-kit-46-70941a3-replaces-mercury-mercruiser-4hp-4
store_origin: JP
region: Japan
---

# Complete pump kit with seal & impeller Compatible with 4HP-9.8HP models Precision OEM fit Water pump kit 46-70941A3 Replaces Mercury/Mercruiser 4HP 4.5HP 7.5HP 9.8HP Sierra 18-3446

**Brand:** ghmarine
**Price:** ¥9135
**Availability:** ✅ In Stock

## Summary

> 💦 Power your ride with precision – don’t let a faulty pump slow your adventure!

## Quick Answers

- **What is this?** Water pump kit 46-70941A3 Replaces Mercury/Mercruiser 4HP 4.5HP 7.5HP 9.8HP Sierra 18-3446 by ghmarine
- **How much does it cost?** ¥9135 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.jp](https://www.desertcart.jp/products/356770559-water-pump-kit-46-70941a3-replaces-mercury-mercruiser-4hp-4)

## Best For

- ghmarine enthusiasts

## Why This Product

- Trusted ghmarine brand quality
- Free international shipping included
- Worldwide delivery with tracking
- 15-day hassle-free returns

## Key Features

- • **All-in-One Kit:** Includes housing, cup, impeller, key, and seal kits for hassle-free installation
- • **Trusted by Pros:** Rated 4.4 stars by 231 users who rely on it for reliable watercraft performance
- • **Lightweight & Durable:** Compact 104g design built to withstand marine environments without weighing you down
- • **Versatile Power Range:** Fits multiple horsepower models from 4HP to 9.8HP, covering your boating needs
- • **Seamless OEM Replacement:** Directly replaces Mercury/Mercruiser part #46-70941A3 for flawless compatibility

## Overview

The GHMARINE Water Pump Kit 46-70941A3 is a premium OEM replacement designed for Mercury/Mercruiser 4HP to 9.8HP engines. This lightweight, all-inclusive kit ensures a perfect fit and reliable watercraft cooling, backed by strong customer satisfaction and engineered for durability in marine conditions.

## Description

Fits: Mercury Mariner 4HP SRL#: 5595532 & Up 4.5HP SRL#: 4107220-5595531 4.5HP SRL#: 5595532 & UP 7.5HP SRL#: 4131610-5226934 7.5HP SRL#: 5206550 & Up 9.8HP SRL#: 5206650 & Up Includes: Housing Cup Impeller key Seal kitsReplaces MerCruiser part number#: 46-70941A3

Review: Living in a rural area it's not always easy to find economical parts quickly.
Review: Worked great on my mercury two stroke4hp.

## Features

- Replaces MerCruiser part number: 46-70941A3
- Sierra number:18-3446
- Fits on the following models: 4HP 4.5HP 7.5HP 9.8HP
- Oem Quality Best Price
- Contact us if you are not sure

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B07Q86CX47 |
| Brand | GHmarine |
| Customer Reviews | 4.4 4.4 out of 5 stars (231) |
| Date First Available | 21 May 2019 |
| Item Weight | 104 g |
| Item model number | 46-70941A3 46-46893A6 18-3446 |
| Manufacturer | GHMARINE |
| Manufacturer Part Number | 46-70941A3 |
| OEM Part Number | 12122, 18-3446, 46-46893A6, 46-70941A3 |
| Position | Lower |
| Product Dimensions | 26.67 x 10.16 x 6.35 cm; 104 g |

## Product Details

- **Brand:** GHmarine
- **Item weight:** 104 Grams
- **Material:** Stainless Steel
- **Vehicle service type:** Mercury Mariner Force Outboard 2-Stroke 4-9.8 HP
- **Weight class:** Heavy Weight

## Images

![Water pump kit 46-70941A3 Replaces Mercury/Mercruiser 4HP 4.5HP 7.5HP 9.8HP Sierra 18-3446 - Image 1](https://m.media-amazon.com/images/I/611de0iLyJL.jpg)

## Available Options

This product comes in different **Color** options.

## Customer Reviews

### ⭐⭐⭐⭐⭐ Review
*by A***. on 13 August 2025*

Living in a rural area it's not always easy to find economical parts quickly.

### ⭐⭐⭐⭐⭐ Review
*by T***N on 14 December 2025*

Worked great on my mercury two stroke4hp.

### ⭐⭐⭐⭐ Review
*by L***. on 3 May 2025*

Good kit, two gaskets, a plate and the impeller, but the key provided was not the correct size. It was too thick to fit in the driveshaft and too thick to fit in the impeller.

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**Shop now:** [https://www.desertcart.jp/products/356770559-water-pump-kit-46-70941a3-replaces-mercury-mercruiser-4hp-4](https://www.desertcart.jp/products/356770559-water-pump-kit-46-70941a3-replaces-mercury-mercruiser-4hp-4)

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*Product available on Desertcart Japan*
*Store origin: JP*
*Last updated: 2026-10-01*