SKU: 33022556538

Exhaust Hose Bellow – Fits Volvo Penta & OMC Cobra 2.3L-8.2L Engines (Replaces 3852741, 3863450)

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Description

Exhaust Hose Bellow – Fits Volvo Penta & OMC Cobra 2.3L-8.2L Engines (Replaces 3852741, 3863450)Exhaust Hose Bellow Fits Volvo Penta & OMC Cobra 2. 3L 8. 2L Engines (Replaces 3852741, 3863450) This exhaust hose bellow is designed for Volvo Penta and OMC Cobra sterndrives, accommodating a wide range of engine sizes from 2. 3L to 8. 2L manufactured between 1986 and 1991. It serves as a crucial connection within the exhaust system, linking the exhaust elbow to the manifold or riser. This component is a direct replacement for OMC part number 3852741

Exhaust Hose Bellow – Fits Volvo Penta & OMC Cobra 2.3L-8.2L Engines (Replaces 3852741, 3863450)

This exhaust hose bellow is designed for Volvo Penta and OMC Cobra sterndrives, accommodating a wide range of engine sizes from 2.3L to 8.2L manufactured between 1986 and 1991. It serves as a crucial connection within the exhaust system, linking the exhaust elbow to the manifold or riser.

This component is a direct replacement for OMC part number 3852741 and Volvo Penta part number 3863450.

  • Installation Method: Direct fit with included hose clamps.
  • Material: Constructed from durable CR (Chloroprene) rubber for longevity.
  • Package Includes: 1 x Exhaust Bellow Hose, 2 x Stainless Steel Hose Clamps.

Part Number Cross-Reference

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

Brand Part Number
OMC 3852741
Volvo Penta 3863450
Sierra 18-2780-1
Sierra 18-27801
GLM 89222
Mallory 9-72800

Compatible Engine Models

Confirm your engine model/year in the table below.

Brand Model Engine Size Stroke Years OEM Part No. Notes
OMC Cobra 2.3L 4-Stroke 1989-1990 3852741 Lower exhaust hose
OMC Cobra 2.5L 4-Stroke 1986 3852741 Lower exhaust hose
OMC Cobra 3.0L 4-Stroke 1986-1991 3852741 Lower exhaust hose
OMC Cobra 4.3L 4-Stroke 1990-1991 3852741 Lower exhaust hose
OMC Cobra 5.0L (Ford) 4-Stroke 1991 3852741 Lower exhaust hose
OMC Cobra 5.7L (GM early) 4-Stroke Early 1986 3852741 Lower exhaust hose
OMC Cobra 5.8L (Ford) 4-Stroke 1991 3852741 Lower exhaust hose
Volvo Penta SX 3.0L-5.8L 4-Stroke 1994-1998 3863450 Cross-reference to OMC

Technical Specifications

Specification Value
Product Type Exhaust Hose Bellow (Lower)
Installation Direct fit between exhaust components
Fuel Type Gasoline engines
Connection Internal Diameter 3.5" to 3.5" (89mm to 89mm)
Housing Material CR (Chloroprene) Rubber
Housing Color Black
Dimensions Length: 4.25"-4.44" (108-113mm), ID: 3.5"-3.625" (89-92mm), OD: ~4.06" (103mm)
Weight 0.53 kg (1.17 lb)
Fitting Type Compression fit with hose clamps
Warranty 1 Year
Other Technical Attributes Lower exhaust hose; connects from exhaust elbow to exhaust manifold or riser

Package Contents

  • 1 x Exhaust Bellow Hose (Replaces 3852741/3863450)
  • 2 x Stainless Steel Hose Clamps

Installation Guide

  1. Safety First: Disconnect the boat's battery and ensure the engine is completely cool before starting.
  2. Access the Area: Gain clear access to the sterndrive's exhaust components. This may require removing drive components or panels.
  3. Locate Old Bellow: Identify the old lower exhaust bellow connecting the exhaust elbow and manifold.
  4. Remove Clamps: Loosen and remove the hose clamps securing the old bellow at both ends.
  5. Remove Old Bellow: Carefully pry or cut the old bellow away from its connection points. Clean the surfaces of any old adhesive or rubber residue.
  6. Position New Bellow: Slide the new exhaust bellow into place, ensuring it is seated correctly on both exhaust components.
  7. Install New Clamps: Place the new stainless steel clamps over each end of the bellow.
  8. Secure Clamps: Tighten the clamps securely to create a watertight seal. Do not overtighten, which could damage the bellow.
  9. Final Check: Once installed, double-check that the bellow is straight and not twisted or pinched.
  10. Reconnect and Test: Reconnect the battery. After reassembly, run the engine with a water supply and check thoroughly for any exhaust or water leaks around the new bellow.

Troubleshooting & FAQ

Q: How do I confirm this exhaust bellow fits my engine?

A: The best way is to check your original part number against our cross-reference list, which includes OMC 3852741 and Volvo Penta 3863450. Also, compare your engine model and year with our compatibility table. Visually matching the dimensions and shape to your old part is also a reliable confirmation method.

Q: What are common signs that my exhaust bellow is failing and needs replacement?

A: Common signs of a failing exhaust bellow include visible cracks, splits, or perishing of the rubber. You may also notice water leaking into the bilge area, unusual exhaust noise, or exhaust fumes escaping into the engine compartment. Regular inspection is recommended.

Q: How often should this part be replaced?

A: Exhaust bellows are a regular maintenance item and should be inspected annually for signs of wear, cracking, or brittleness. Replacement intervals can vary based on usage (freshwater vs. saltwater) and storage conditions, but it is common to replace them every 3-5 years or as needed.

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: 33022556538

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This chair was relatively easy to put together. After unboxing and laying out all of the parts, my husband and I built it in 22 minutes. We noticed how the instructions have you put the tilt mechanism bracket on after putting the back and arms on. Another chair we built was the opposite, which made attaching it to the base actually easier. That way just made more sense. This way, you put the back and seat together using the arms, then you attach the tilt mechanism to the bottom of the seat, but the seat is at an angle when you do this. Then you lift the whole chair and place it down onto the legs. I'm glad there were two of us to do that part. We also noticed one of the holes for screwing in the arm bracket was not lined in metal like the rest of them were. It still worked, though. It does rock a bit back and forth. The height adjusting rod also locks the chair in place for when you don't want the chair to lean back. There is a knob underneath that allows you to loosen or tighten how much it moves when you lean back or rock. The material is faux leather. It looks like real leather and feels pretty good. This makes it easy to clean. The arms can be raised level with the back of the chair to make it easy to slide out of the side of the chair. Overall this chair has a pretty classic look to it and is comfortable to sit in. It even has some lumbar support. The way the back of the chair and the seat of the chair connect together leaves a little bit of a gap. Nothing major, but you could lose coins or keys through the gaps between the cushions. If you have a cat, this would be a great way for them to poke their paws through and say hello.
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Reviewed in the United States on May 20, 2026
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Barshonk
Bozeman, US
★★★★★ 5
Very good chair, comfortable and high quality.
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I had my doubts, yet after a couple months I really love this chair. Its a very good quality. Comfortable and sturdy. It allows for me to lean back too, which is a big plus! It looks really great and I am glad I purchased this chair. If you are looking, then just buy it because it is as good as it looks in the pictures.
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Reviewed in the United States on May 4, 2026
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Oasis Of Tranquility
Draper, US
★★★★★ 5
Very nice work chair
Color: Khaki, Color: Khaki
I am happy, it’s easy to assemble, comfortable, height adjustable, good quality and nice looking. I would recommend it.
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Reviewed in the United States on June 5, 2026
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Kindle Customer
Pawtucket, US
★★★★★ 5
Perfect for my studio
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Naught this chair for my bedroom home recording studio. Honestly, I bought it mostly for the look. I just thought it would look great with what I was trying to v to do in the studio. I was very pleasantly surprised to find that’s its much more comfortable than I had assumed. It was easy to assemble. The provided assembly instructions were clear and easy to follow. It took me less than 20 minutes to build it. The build quality is solid. I’m a tall well build dude that weights more than 210 lbs and it takes my weight very well. Great little chair. I recommend it.
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oaday
Natrona Heights, US
★★★★★ 5
Very happy customer!
Color: Cream White, Color: Cream White
This chair is what you are looking for!!! No serious friends, this chair is everything and so incredibly comfortable! I’m so happy with this purchase. The wood accents I believe are actual wood and the PU leather is gorgeous and seriously looks like real leather. The size is perfect for my frame too. I’m a size medium bottom girly and the curve and level of cushion on the seat is so well executed. The rollability of the rollers are fantastic too, not super loud on our wooden floors and a really smooth glide. Im on the search for a rug to go under my desk but man the patience I used to wait to find this chair truly was worth it. A total lesson on patience and biting when you find the right thing. I think it’s pretty sturdy too. But I’ll report back in a few months. At the moment nothing leads me to be suspicious of a less than long life for this chair.
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