---
product_id: 18846436
title: "SEI MARINE PRODUCTS- Compatible with Mercury Mariner Water Pump Kit 46-9297085 3.9 4 4.5 6 7.5 8 9.8 9.9 HP Impeller ID .438"
brand: "sei marine products"
price: "€ 147.90"
currency: EUR
in_stock: true
reviews_count: 7
category: "Sei Marine Products"
url: https://www.desertcart.gr/products/18846436-sei-marine-products-compatible-with-mercury-mariner-water-pump-kit
store_origin: GR
region: Greece
---

# Impeller ID .438 inches for precise water flow Direct OE# 46-9297085 replacement Fits 3.9-9.9 HP Mercury/Mariner engines SEI MARINE PRODUCTS- Compatible with Mercury Mariner Water Pump Kit 46-9297085 3.9 4 4.5 6 7.5 8 9.8 9.9 HP Impeller ID .438

**Brand:** sei marine products
**Price:** € 147.90
**Availability:** ✅ In Stock

## Summary

> 💦 Keep your engine cool and cruising—don’t let a worn impeller slow your adventure!

## Quick Answers

- **What is this?** SEI MARINE PRODUCTS- Compatible with Mercury Mariner Water Pump Kit 46-9297085 3.9 4 4.5 6 7.5 8 9.8 9.9 HP Impeller ID .438 by sei marine products
- **How much does it cost?** € 147.90 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.gr](https://www.desertcart.gr/products/18846436-sei-marine-products-compatible-with-mercury-mariner-water-pump-kit)

## Best For

- sei marine products enthusiasts

## Why This Product

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

## Key Features

- • **Trusted by Boaters:** Rated 4.1 stars by marine enthusiasts who demand dependable water pump performance on every trip.
- • **Lightweight Durability:** At just 2 pounds, this kit balances robust construction with easy handling and installation.
- • **Seamless Compatibility:** Engineered to fit a wide range of Mercury and Mariner 3.9-9.9 HP outboards for hassle-free upgrades.
- • **OE Standard Replacement:** Directly replaces OE# 46-9297085, guaranteeing a perfect fit and reliable operation without guesswork.
- • **Precision Impeller Design:** With a .438 inch inside diameter, it ensures optimal water circulation to keep your engine cool and performing.

## Overview

The SEI Marine Products Water Pump Kit is a precision-engineered replacement for Mercury and Mariner outboard engines ranging from 3.9 to 9.9 HP. Featuring a .438 inch impeller inside diameter and direct OE# 46-9297085 compatibility, it ensures reliable water flow and engine cooling. Lightweight and highly rated by users, this kit is essential for maintaining peak marine engine performance.

## Description

This water pump kit replaces OE#: 46-9297085 and fits 3.9-9.9 HP Mercury and Mariner outboard lower units. The impeller inside diameter is .438 inches. Please confirm this is correct because some engines use a .438 inside diameter impeller.

Review: Worked great - Fit good
Review: Kinda works - Pumps water at speed but not at idle.

## Features

- This water pump kit replaces OE#: 46-9297085 and fits 3.9-9.9 HP Mercury and Mariner outboard lower units.

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B00I53W19M |
| Best Sellers Rank | #4,111,884 in Automotive ( See Top 100 in Automotive ) #15,838 in Automotive Replacement Engine Water Pumps |
| Brand | SEI Marine Products |
| Brand Name | SEI Marine Products |
| Compatible with Vehicle Type | marine-personal-craft |
| Customer Reviews | 4.1 out of 5 stars 27 Reviews |
| Item Weight | 2 Pounds |
| Manufacturer | SEI MARINE PRODUCTS |
| Manufacturer Part Number | 96-260-01BK |
| Vehicle Service Type | marine-personal-craft |

## Images

![SEI MARINE PRODUCTS- Compatible with Mercury Mariner Water Pump Kit 46-9297085 3.9 4 4.5 6 7.5 8 9.8 9.9 HP Impeller ID .438 - Image 1](https://m.media-amazon.com/images/I/51fKsdzLk8L.jpg)
![SEI MARINE PRODUCTS- Compatible with Mercury Mariner Water Pump Kit 46-9297085 3.9 4 4.5 6 7.5 8 9.8 9.9 HP Impeller ID .438 - Image 2](https://m.media-amazon.com/images/I/51x+DKjD8nL.jpg)

## Customer Reviews

### ⭐⭐⭐⭐⭐ Worked great
*by R***B on March 19, 2025*

Fit good

### ⭐⭐⭐ Kinda works
*by M***A on April 8, 2025*

Pumps water at speed but not at idle.

### ⭐⭐⭐⭐⭐ Five Stars
*by A***R on March 9, 2018*

The best price that I could find and it bolted up and preformed perfectly!

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---

*Product available on Desertcart Greece*
*Store origin: GR*
*Last updated: 2026-07-27*