---
product_id: 146701646
title: "Boating Accessories New Marine Mercruiser Tappered Tool Replaces Mercury 91-43579 Sierra 18-9844"
brand: "sierra"
price: "$83.99"
currency: USD
in_stock: true
reviews_count: 8
url: https://www.desertcart.us/products/146701646-boating-accessories-new-marine-mercruiser-tappered-tool-replaces-mercury-91
store_origin: US
region: United States of America
---

# Boating Accessories New Marine Mercruiser Tappered Tool Replaces Mercury 91-43579 Sierra 18-9844

**Brand:** sierra
**Price:** $83.99
**Availability:** ✅ In Stock

## Quick Answers

- **What is this?** Boating Accessories New Marine Mercruiser Tappered Tool Replaces Mercury 91-43579 Sierra 18-9844 by sierra
- **How much does it cost?** $83.99 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.us](https://www.desertcart.us/products/146701646-boating-accessories-new-marine-mercruiser-tappered-tool-replaces-mercury-91)

## Best For

- sierra enthusiasts

## Why This Product

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

## Description

Sierra products are engineered to meet today’s high horsepower engine demands and stand up in the harsh marine environment. All Sierra products meet or exceed the original equipment part it replaces. Sierra supplies many OEM engine manufacturers and boat builders hundreds of quality parts every day

## Features

- reliable
- built to perform
- Sierra quality products are backed by our industry leading .
- ›See more product details

## Images

![Boating Accessories New Marine Mercruiser Tappered Tool Replaces Mercury 91-43579 Sierra 18-9844 - Image 1](https://images-na.ssl-images-amazon.com/images/I/41CZPugTiQL.jpg)
![Boating Accessories New Marine Mercruiser Tappered Tool Replaces Mercury 91-43579 Sierra 18-9844 - Image 2](https://images-na.ssl-images-amazon.com/images/I/11gtibk%2BfJL.jpg)
![Boating Accessories New Marine Mercruiser Tappered Tool Replaces Mercury 91-43579 Sierra 18-9844 - Image 3](https://images-na.ssl-images-amazon.com/images/I/41CZPugTiQL.jpg)

## Customer Reviews

### ⭐⭐ 







  
  
    Mercruiser Raw Water Hose Ring Tool
  

*by R***F on Reviewed in the United States on August 11, 2017*

Not quite a good fit.  I had to grind down some to get the 'tabs' to fit into the hose ring.  Even then, not a good fit.  Disappointed yet all I had.  Prior one was plastic and broke.  This was metal and would not break but would not push into the hose rings as needed deep enough to get a good fit.  I purchased three different hose ring pairs (faster delivery, as this was a slow delivery item), including Mercruiser item and still had the issue of fit.

### ⭐ 







  
  
    Junk
  

*by D***N on Reviewed in the United States on October 6, 2018*

Doesn’t fit, useless for what it is intended. Notches do not fit into slots as they are intended. Not worth $30, not worth $6

### ⭐⭐⭐⭐ 







  
  
    Works but pricy
  

*by J***S on Reviewed in the United States on March 18, 2021*

Worked well just expensive.

---

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**Shop now:** [https://www.desertcart.us/products/146701646-boating-accessories-new-marine-mercruiser-tappered-tool-replaces-mercury-91](https://www.desertcart.us/products/146701646-boating-accessories-new-marine-mercruiser-tappered-tool-replaces-mercury-91)

---

*Product available on Desertcart United States of America*
*Store origin: US*
*Last updated: 2026-05-24*