---
product_id: 22895393
title: "Water Pump Impeller 369-65021-1 47-16154-3 18-3098 for Mercury Sierra Tohatsu 2HP 2.5HP 3.5HP 4HP 5HP 6HP"
brand: "big-autoparts"
price: "3454 som"
currency: KGS
in_stock: true
reviews_count: 8
category: "Big Autoparts"
url: https://www.desertcart.kg/products/22895393-water-pump-impeller-369-65021-1-47-16154-3-18
store_origin: KG
region: Kyrgyzstan
---

# 33.58mm external diameter fits OEM specs 6 precision blades for optimal water flow Direct OE replacement, easy install Water Pump Impeller 369-65021-1 47-16154-3 18-3098 for Mercury Sierra Tohatsu 2HP 2.5HP 3.5HP 4HP 5HP 6HP

**Brand:** big-autoparts
**Price:** 3454 som
**Availability:** ✅ In Stock

## Summary

> 🚤 Keep your engine cool and cruising—never miss a wave!

## Quick Answers

- **What is this?** Water Pump Impeller 369-65021-1 47-16154-3 18-3098 for Mercury Sierra Tohatsu 2HP 2.5HP 3.5HP 4HP 5HP 6HP by big-autoparts
- **How much does it cost?** 3454 som with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.kg](https://www.desertcart.kg/products/22895393-water-pump-impeller-369-65021-1-47-16154-3-18)

## Best For

- big-autoparts enthusiasts

## Why This Product

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

## Key Features

- • **OEM-Exact Dimensions:** Seamlessly fits Mercury & Tohatsu engines without modification.
- • **Durable Premium Nylon:** Built to last with TS16949-certified materials for long-term reliability.
- • **Trusted Compatibility:** Compatible with 2HP to 6HP Mercury/Mariner 2 & 4-stroke outboards.
- • **Precision 6-Blade Design:** Maximize cooling efficiency with engineered blade geometry.
- • **Plug-and-Play Installation:** Simple hand-tool replacement saves time and hassle.

## Overview

This big-autoparts Water Pump Impeller is a 100% brand new, TS16949-certified direct replacement for Mercury and Tohatsu outboard motors ranging from 2HP to 6HP. Featuring a precision 6-blade design and premium nylon construction, it ensures optimal water flow and durability. Engineered to OEM specifications with a 33.58mm diameter and 14.3mm height, it offers hassle-free installation with simple hand tools, making it the go-to upgrade for millennial boat owners who demand reliability and performance on every adventure.

## Description

Water Pump Impeller Dimensions: Warranty: 2 years No. Blades: 6 Depth /Height/Width :14.22mm Outer /External impeller overall Diameter: 33.78mm Internal shaft insert /Hub Diameter : 10.30mm Net Weight: 7g Material: Impeller(CR), Shaft Sleeve (Nylon) Applications: Mercury/Mariner (4-STROKE) Carb : 2HP ,0R131842 & Up 2.5Hp ,0R131842 & Up 3.5HP ,0R131842 & Up Mercury/Mariner (2-STROKE) 4HP ,0T894439 & Up ,0P401000 & Up 5HP , 0T894439 & Up,0P401000 & Up 4HP ,0G710613 THRU 0T894438,0P017000 THRU 0P400999 5HP, 0P017000 THRU 0P400999,0G710613 THRU 0T894438 Mercury/Mariner 2HP ,0T884302 THRU 0T894576 Mercury/Mariner 3.3HP, 2.5HP,0G710613 THRU 0T894576 Mercury/Mariner 3.3HP, 2.5HP,0P017000 THRU 0P400999 Mercury/Mariner 6HP ,5HP , 4HP,(4-STROKE),0R000001 THRU 0R067089,0P073456 THRU 0P400999 Mercury/Mariner 2HP,2.5HP,3.3HP,0T894577 & Up Mercury/Mariner 2.5HP,3.3HP ,0P401000 & Up Mercury/Mariner 6 5 4(4-STROKE),0R067090 & Up,0P401000 & Up Package Included: Outboard Water Pump Impeller *1pcs To ensure this impeller is suitable for your engine. Please feel free to ask us any questions. We promise to answer you in 24 hours.Please check the size carefully before you order.

Review: works as intended on my 2004 Mercury 6HP 4 stroke outboard - works great! bought an extra my 2004 Mercury 6HP 4 stroke outboard
Review: Looks like OEM part - Excellent Impeller for the money. Consider buying an Impeller Kit if you haven’t changed the gaskets in a few years.

## Features

- Water motor impeller have 6 blades.Height:14.30mm,External Impeller Overall Diameter:33.58mm,Internal Shaft Insert Diameter:10.25mm.
- This aftermarket impeller replaces Mercury outboard motor part #47-16154-3,Tohatsu outboard motor part 369-65021-1, impeller 18-3098.
- Water pump impeller are 100% brand new and don't used or rebuilt.
- Similar in design to stock OEM units and require only simple hand tools for installation.Direct replacement,OE level quality and durability.
- Water pump impeller 100% compatible with OE parts and passed TS16949 certified.Fits for Mercury/Mariner (4-STROKE) Carb 2HP 2.5HP 3HP,Mercury/Mariner (2-STROKE) 4HP 5HP,6HP.

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B0118YZWLS |
| Best Sellers Rank | #516,999 in Automotive ( See Top 100 in Automotive ) #1,689 in Automotive Replacement Engine Water Pumps |
| Brand Name | big-autoparts |
| Compatible with Vehicle Type | Boat |
| Customer Reviews | 4.5 out of 5 stars 384 Reviews |
| Manufacturer | Big-Autoparts |
| Manufacturer Part Number | 47-16154-3 369-65021-1 18-3098 |
| Material Type | premium nylon |
| Model Number | 47-16154-3 369-65021-1 18-3098 |
| Part Interchange Info | 47-16154-3 369-65021-1 18-3098 |

## Product Details

- **Brand:** big-autoparts
- **Material:** premium nylon
- **Vehicle Service Type:** Boat
- **Manufacturer:** Big-Autoparts
- **OEM Part Number:** 47-16154-3 369-65021-1 18-3098
- **Automotive Fit Type:** Vehicle Specific Fit

## Images

![Water Pump Impeller 369-65021-1 47-16154-3 18-3098 for Mercury Sierra Tohatsu 2HP 2.5HP 3.5HP 4HP 5HP 6HP - Image 1](https://m.media-amazon.com/images/I/519qaoXTTaL.jpg)

## Questions & Answers

**Q: I need a impeller to fit 2015 colman 5hp**
A: It worked on a 2-horse Nissan and a 6-horse Tohatsu for me. Tohatsu made both engines. I don't know who manufactured the Colman.

**Q: will this fit a 1956 Johnson 7 1/2hp outboard motor ?**
A: Probably not, this fits smaller Mercury and Tohatsu engines......you need to get ghe serial number off your engine, go to Marine Engine site, plug in the number and it will give you the correct part number.

**Q: did this product come with the o ring?**
A: No.  Just the impeller.  It is a real Westerbeke part, good quality.  Lasts about 400 hours in Onan 11.5KW marine generator.  At 500 hours, need to go fishing for missing vanes in the heat exchanger.

**Q: Need help finding a 1978 evinrude 115 exhaust manifold gasket**
A: Try Sea Way marine

## Customer Reviews

### ⭐⭐⭐⭐⭐ works as intended on my 2004 Mercury 6HP 4 stroke outboard
*by P***S on July 17, 2025*

works great! bought an extra my 2004 Mercury 6HP 4 stroke outboard

### ⭐⭐⭐⭐⭐ Looks like OEM part
*by M***C on May 24, 2025*

Excellent Impeller for the money. Consider buying an Impeller Kit if you haven’t changed the gaskets in a few years.

### ⭐⭐⭐⭐⭐ It fits my 2 hp Nissant
*by K***R on November 15, 2021*

It was a very good price and it fit my engine. Now if I can get the engine back together I will be able to tell how well it works. The difficulty in reassembly has nothing to do with the impeller.

## Frequently Bought Together

- big-autoparts Water Pump Impeller 369-65021-1 47-16154-3 18-3098 for Mercury Sierra Tohatsu 2HP 2.5HP 3.5HP 4HP 5HP 6HP
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*Product available on Desertcart Kyrgyzstan*
*Store origin: KG*
*Last updated: 2026-01-30*