SKU: 14534513435

Exhaust Bellows Expander Tool – Fits MerCruiser Alpha One, Gen II, Bravo Series (Replaces 91-45497A1, 8M0096108)

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Description

Exhaust Bellows Expander Tool – Fits MerCruiser Alpha One, Gen II, Bravo Series (Replaces 91-45497A1, 8M0096108)Exhaust Bellows Expander Tool Fits MerCruiser Alpha One, Gen II, Bravo Series (Replaces 91 45497A1, 8M0096108) This specialized tool is designed for stretching and installing exhaust bellows on MerCruiser sterndrive units. It is compatible with Alpha One (Gen I & II), Bravo (One, Two, Three), Blackhawk, MC 1, R, and MR drive units from 1983 and newer. This tool is a direct replacement for Mercury part numbers 91 45497A1 and 8M0096108, as well as

Exhaust Bellows Expander Tool – Fits MerCruiser Alpha One, Gen II, Bravo Series (Replaces 91-45497A1, 8M0096108)

This specialized tool is designed for stretching and installing exhaust bellows on MerCruiser sterndrive units. It is compatible with Alpha One (Gen I & II), Bravo (One, Two, Three), Blackhawk, MC-1, R, and MR drive units from 1983 and newer.

This tool is a direct replacement for Mercury part numbers 91-45497A1 and 8M0096108, as well as aftermarket equivalents a from Sierra (18-9847) and GLM (90360).

  • Installation Method: Manual operation with a scissor-handle and screw lock mechanism.
  • Required Step: The sterndrive (Z-drive) must be removed from the gimbal housing to use this tool correctly.
  • Durable Construction: Made from high-quality steel with a PVC grip for secure handling.

Part Number Cross-Reference

Use this table to confirm equivalent part numbers across OEM and aftermarket brands.

Brand Part Number
Mercury 91-45497A1
Mercury 8M0096108
Sierra 18-9847
GLM 90360

Compatible Engine Models

Confirm your engine model/year in the table below. For Mercury owners, here’s a guide to help you identify your engine’s serial/model: Mercury Serial Number Guide. You can also review exploded diagrams to verify part numbers: Mercury Parts Diagrams & Catalog.

Brand Model Years OEM Part No. Notes
MerCruiser Alpha One 1983-1990 91-45497A1 First Generation
MerCruiser Alpha One Gen II 1991 and up 91-45497A1/8M0096108
MerCruiser Bravo One 1996-2013 91-45497A1/8M0096108
MerCruiser Bravo Two 1996-2013 91-45497A1/8M0096108
MerCruiser Bravo Three 1996-2013 91-45497A1/8M0096108
MerCruiser MC-1 1998-2009 91-45497A1/8M0096108 Integrated rear drive
MerCruiser R Various 91-45497A1/8M0096108
MerCruiser MR Various 91-45497A1/8M0096108
MerCruiser Blackhawk Various 91-45497A1/8M0096108

Technical Specifications

Specification Value
Product Type Exhaust Bellows Installation Tool
Installation Manual Operation
Material High-quality Steel
Handle Material Steel with PVC Grip Cover
Design Scissor-handle with Screw Lock Mechanism
Handle Style Pliers-like with Non-slip Grip
Mechanism Mechanical Expansion/Compression
Required Installation Z-drive Must Be Removed to Use Tool

Package Contents

  • 1 x Exhaust Bellows Expander Tool (Replaces 91-45497A1/8M0096108)

Installation Guide

  1. First, install the new exhaust bellows onto the gimbal housing.
  2. Use this tool to gently stretch the other end of the bellows through the exhaust hole in the bell housing.
  3. Once the bellows is properly seated, tighten the hose clamp to secure it.
  4. Note: The sterndrive (Z-drive) must be completely removed from the boat to access the bellows and use this tool correctly.

Troubleshooting & FAQ

Q: How do I confirm this tool fits my sterndrive?
A: This tool is designed for a wide range of MerCruiser drives, including Alpha One (Gen I & II), Bravo Series, Blackhawk, and others made since 1983. Check the compatible models list and cross-reference your original tool part number with 91-45497A1, 8M0096108, Sierra 18-9847, or GLM 90360.

Q: Do I have to remove the outdrive to use this tool?
A: Yes. The sterndrive unit (Z-drive) must be removed to gain access to the exhaust bellows for replacement. दिस tool cannot be used with the drive installed.

Q: Is this tool the same as the original Mercury 91-45497A1?
A: This is an aftermarket tool designed to perform the same function as the OEM tool. It is built to match the specifications required for successfully stretching and installing the exhaust bellows on compatible MerCruiser drives.

Q: OEM vs. Aftermarket?
A: This listing is an aftermarket replacement part (not an OEM component). We build to OEM specifications using comparable-grade materials. Production is done in an ISO9002-certified facility, and each batch is inspected for consistent performance.

Q: How fast do you ship and how much does it cost?
A: We offer fast global shipping—typically 5–15 days worldwide—and standard shipping is free. Expedited options are available at checkout depending on your location.

Q: What is your warranty and return policy?
A: This product includes a 1-year warranty against manufacturing defects under normal use. If something goes wrong, contact our support team with your order details. Returns are accepted within our standard return window (unused & in original condition); please see our policy page or reach out for instructions.

Important Notes

  • Verify that the product images and specifications match your original part. If discrepancies exist—even if your model is listed—do not proceed with the purchase.
  • This product is an aftermarket replacement part and is not an OEM component.
  • Professional installation is recommended to ensure safety and optimal performance.

Why Choose JLM MARINE?

  • Quality Assured: As a trusted manufacturer for over 20 years, we supply top marine brands globally.
  • Fast Global Shipping: Free delivery worldwide in 5–15 days.
  • Direct from Manufacturer: Competitive pricing without compromising quality.
Shipping Notes
  • Free Standard Shipping on $100+ Orders to the USA.
  • Except Preorder products are shipped in 48 hours.
  • Delivery to the USA:
  1. Standard Shipping : 3-10 business days
  • If time is of the essence, please consider selecting expedited delivery for faster service.
Exchange/Return Notes
  • We offer a 30-day return/exchange service after receiving.
  • Final sale items are not eligible for returns or exchanges.
  • To process your return/exchange, please contact us at [email protected]
  • Please click here for more details>>> Return & Exchange Policy
SKU: 14534513435

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4.7 ★★★★★
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A
Atherney Family Farm
Chelsea, US
★★★★★ 5
Nice elegant suit for any occasion.
Color: Light Blue, Size: 12, Color: Light Blue, Size: 12
The suit set is very nice, the fabric material is durable and soft. Overall stitching is tight with nice surging of the hems and great construction on the shoulders. Buttons and button wholes are well done. I'm going to iron in the creases on the front of the pants because they weren't folded properly for shipping. The material does hold on to wrinkles so don't be afraid of your iron to get a super sharp look. The color is a soft baby blue that stands out in a crowd of black suits. With the option of an elastic tie or clip on bowtie this is everything you need to make him look presentable for a variety of occasions. My only complaint about this suit kit is the dress shirt is stiff and thin. I found some loose threads that I don't trust to not get played with. I'll probably trade it out for something with a little more cotton. As far as cost goes mid range, but definitely worth the cost. I might consider something with a vest if it's a super formal event, but I'm very happy with how this suit comes together.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on April 18, 2026
M
Martin V.
Massapequa, US
★★★★★ 5
Modern luxury with summer fabric that performs above its price!
Color: Beige, Size: 14, Color: Beige, Size: 14
Wow! My son wore it for Easter Sunday and this suit fits the bill! The linen material is spot on--not too heavy and not too light especially since the weather is warming up now. The jacket is quality made--the design is modern executive, the stitches are strong no flaws to note. The pants are tad bit longer but that's okay, build quality is also great. The white shirt is decent and matches well with the rest of the set. The bow tie and tie itself is a great complimentary to the set, though optional to wear. The whole set just has that quality you would really look for in the price range you would want to pay. Overall, best value for for the, wear right outside the bag, maybe a light ironing otherwise it's perfect! I highly recommend it, no complaints here very happy with this suit!
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Reviewed in the United States on April 5, 2026
A
Ariel B.
Pawtucket, US
★★★★★ 4
Heavy linen character, but a beautifully tailored suit!
Color: Beige, Size: 4, Color: Beige, Size: 4
This is a really nice linen suit! The jacket is beautifully made and well-tailored, with a fun speckled texture that has lots of pretty color variation (we ordered the beige). When I placed it side by side with a similar linen suit from another brand, the difference in the linen texture was really noticeable — this had a much stronger linen character that stands out! It has three useful pockets on the outside of the jacket, which is great for little hands. The only downside is that one of the inside pockets is just for show (faux), which was a bit surprising and somewhat disappointing for my little guy. The pants have pockets too, but they aren’t very deep — perfect for small treasures, but not much more. The pants are made from a lighter, thinner single-layer linen compared to the fully lined, double-layer jacket, which makes sense for comfort and easy movement. The pants didn’t come with a front crease ironed in, so you’ll want to press one yourself. The linen did pick up some creases from being folded in the package, but it doesn’t seem quite as wrinkly as some other linen fabrics I’ve tried. Still, like most linen clothes, especially for boys, the pants will need occasional ironing to keep them looking neat and crisp, especially after a day of play and general wear. The structured, lined jacket stays looking smoother and more put-together with less effort. It also came with a bow tie, a neck tie, and a tuxedo-style white shirt as extras. The ties aren’t great quality — they’d work fine for quick photos but probably won’t hold up to much actual wear. The formal white shirt feels a bit funny paired with the casual linen suit, but I don’t mind at all. We already have white shirts that we prefer, so we’ll use those instead. For us, the extras are really just bonus items we won’t plan on using. Overall, it’s a handsome little suit that’s perfect for special occasions like weddings, family photos, or holiday events. My kid looked adorable in it! The stronger linen texture on the jacket gives it a premium feel that I really like. Just be ready for a bit of extra care with the pants to keep everything sharp.
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Reviewed in the United States on April 8, 2026
C
chzgr8er
West Palm Beach, US
★★★★★ 5
Great suit set
Color: Light Grey, Size: 4
It is incredibly attractive and includes everything a young child needs for a special occasion. The material is a 75% polyester and 25% linen blend, and the outer fabric feels remarkably smooth. Its unstructured design allows for an attractive, natural drape, and the blend conveniently allows for machine washing at home. As is typical with linen-based materials, the fabric can be naturally stiff and prone to wrinkling, so I recommend ironing or steaming it before use. The lightweight feel makes it an excellent choice for the spring, summer, and fall months. Overall, this suit offers exceptional value for the price.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on April 12, 2026
J
Verified Purchase
Joseph
Battle Creek, US
★★★★★ 5
A good First Communion suit
Size: 6, Color: White, Size: 6, Color: White
This suit looks and feels really nice even though it’s not 100% linen. My son is an average size 7 year old, but I got a size 6 so that the fit would be nice and snug and not loose and baggy. It was the right choice. Comes with a bow tie which is nice, a tie (which is very cheap and poorly made) and a pocket square.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on April 29, 2026

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