---
product_id: 523993495
title: "Exhaust Bellows Expander Tool 91-45497A1 Fit for Mercruiser Alpha Gen One 1 & Two 2 Bravo 1, 2, 3 Blackhawk, MC-1 & R-MR, Replaces for 91-8M0096108, 90360, 18-9847"
brand: "yoursme"
price: "A$76"
currency: AUD
in_stock: true
reviews_count: 8
category: "Yoursme"
url: https://www.desertcart.com.au/products/523993495-exhaust-bellows-expander-tool-91-45497a1-fit-for-mercruiser-alpha
store_origin: AU
region: Australia
---

# Installation done in minutes with 3-step ease Precision-fit for Mercruiser Gen I & II + Bravo 1-3 Durable steel build with impact & aging resistance Exhaust Bellows Expander Tool 91-45497A1 Fit for Mercruiser Alpha Gen One 1 & Two 2 Bravo 1, 2, 3 Blackhawk, MC-1 & R-MR, Replaces for 91-8M0096108, 90360, 18-9847

**Brand:** yoursme
**Price:** A$76
**Availability:** ✅ In Stock

## Summary

> 🛠️ Expand your efficiency—install like a pro, every time!

## Quick Answers

- **What is this?** Exhaust Bellows Expander Tool 91-45497A1 Fit for Mercruiser Alpha Gen One 1 & Two 2 Bravo 1, 2, 3 Blackhawk, MC-1 & R-MR, Replaces for 91-8M0096108, 90360, 18-9847 by yoursme
- **How much does it cost?** A$76 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.com.au](https://www.desertcart.com.au/products/523993495-exhaust-bellows-expander-tool-91-45497a1-fit-for-mercruiser-alpha)

## Best For

- yoursme enthusiasts

## Why This Product

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

## Key Features

- • **Built to Last:** Crafted from superior steel with a non-slip PVC handle for maximum durability and grip
- • **Ergonomic Design:** Tong-like grip handle enhances control, reducing installation fatigue for pros on the go
- • **Swift Installation:** Complete exhaust bellows expansion in just three simple steps—no fuss, no delays
- • **Precision Replacement:** Direct substitute for multiple OEM part numbers ensuring perfect fit and function
- • **Seamless Compatibility:** Fits Mercruiser Alpha Gen I & II, Bravo 1-3, Blackhawk, MC-1 & R-MR drives effortlessly

## Overview

The Exhaust Bellows Expander Tool 91-45497A1 is a heavy-duty, precision-engineered tool designed specifically for Mercruiser Alpha Gen I & II, Bravo 1-3, and related drives. Made from impact-resistant steel with a non-slip handle, it enables quick, reliable exhaust bellows installation in just three steps, replacing multiple OEM parts for seamless compatibility and long-lasting performance.

## Description

Buy Exhaust Bellows Expander Tool 91-45497A1 Fit for Mercruiser Alpha Gen One 1 & Two 2 Bravo 1, 2, 3 Blackhawk, MC-1 & R-MR, Replaces for 91-8M0096108, 90360, 18-9847: Exhaust Tools - desertcart.com ✓ FREE DELIVERY possible on eligible purchases

Review: Mercruiser Misery - If you are contemplating buying these, then you should do it. They do exactly what they say they do. Don’t forget to buy the adhesive or the boot will come off. They aren’t fancy, but they work well.
Review: Made things alot easier - Made it alot easier with installing the bellows.

## Features

- Professional Exhaust Bellows Expander Tool -- Fit for Mercruiser Alpha One Gen I & Gen II, and for Bravo 1, 2 & 3 Drives, also works for Mercruiser Blackhawk, MC-1 & R-MR.
- Replacement -- Replaces for MerCruiser: 91-45497A1, replaces for 90360, replaces for Mercury 45497A1, and replaces for Sierra 18-9847. Also substitute for 46-8M0096108, 8M0096108, 91-8M0096108, 79811.
- Powerful Functions -- This bellows expander tool is specifically designed to stretch the exhaust bellows for Mercruiser Outdrives. Completion of your installation work in minutes.
- Upgrade Manufacturing -- Made of superior steel, sturdy and durable, impact-resistant, aging resistance, with black non-slip PVC handle protactive cover, Tong like grip for convenient use. Ensure an unparalleled long lifespan.
- Easy to Use -- Install in just three steps. 1. install the exhaust bellows on the gimbal housing; 2. stretch the exhaust bellows through the exhaust hole in the bell housing; 3. tighten the hose clamp. (NOTE: The stern drive must be removed to use this tool.)

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B0BMVPJR2N |
| Best Sellers Rank | #154,106 in Automotive ( See Top 100 in Automotive ) #32 in Engine Exhaust Tools |
| Brand | Yoursme |
| Customer Reviews | 4.5 4.5 out of 5 stars (74) |
| Date First Available | November 18, 2022 |
| Exterior | Machined |
| Item Weight | 1.46 pounds |
| Item model number | YSM-91-45497A1 |
| Manufacturer | Yoursme |
| Manufacturer Part Number | YSM-91-45497A1 |
| Model | Exhaust Bellows Expander Tool |
| Product Dimensions | 14.57 x 4.49 x 1.85 inches |

## Images

![Exhaust Bellows Expander Tool 91-45497A1 Fit for Mercruiser Alpha Gen One 1 & Two 2 Bravo 1, 2, 3 Blackhawk, MC-1 & R-MR, Replaces for 91-8M0096108, 90360, 18-9847 - Image 1](https://m.media-amazon.com/images/I/51sELFYlLTL.jpg)

## Customer Reviews

### ⭐⭐⭐⭐⭐ Mercruiser Misery
*by B***. on September 14, 2024*

If you are contemplating buying these, then you should do it. They do exactly what they say they do. Don’t forget to buy the adhesive or the boot will come off. They aren’t fancy, but they work well.

### ⭐⭐⭐⭐⭐ Made things alot easier
*by A***N on January 2, 2026*

Made it alot easier with installing the bellows.

### ⭐⭐⭐⭐ Wish it worked on both exhaust and u-joint bellows
*by S***. on December 6, 2023*

It worked fine on exhaust bellows but too small for u-joint bellows so I went with Mercruiser open ended exhaust bellow that doesn’t fasten to outdrive assembly and returned it.

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*Product available on Desertcart Australia*
*Store origin: AU*
*Last updated: 2026-02-28*