Lower Exhaust Hose – Fits OMC Cobra & Volvo Penta 2.3L, 4.3L, 5.0L, 5.7L, 5.8L, 7.4L, 8.2L (Replaces 3852742, 913592, 778066)

Lower Exhaust Hose – Fits OMC Cobra & Volvo Penta 2.3L-8.2L Engines

This lower exhaust hose is a direct-fit replacement for a wide range of OMC Sterndrive and Volvo Penta engines. It is designed to connect the upper exhaust pipe to the exhaust manifold, ensuring a secure, leak-free seal for the exhaust system.

Engine compatibility includes OMC Sterndrive models from 1986–1998 (2.3L to 8.2L) and various Volvo Penta SX and other sterndrive models (3.0L to 8.2L). It directly replaces multiple OEM and aftermarket part numbers, including OMC 3852742, 913592, and Volvo Penta 3852742.

• Installation: Direct slip-on fit between the upper exhaust pipe and manifold.
• Material: Constructed from durable, heat-resistant rubber for longevity.
• Included Hardware: Comes with a stainless steel clamp for a complete installation.

Part Number Cross-Reference

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

Compatible Engine Models

Confirm your engine model/year in the table below.

OMC Sterndrive Engines

Volvo Penta Engines

Technical Specifications

Package Contents

• 1 x Lower Exhaust Hose/Bellow
• 1 x Stainless Steel Clamp

Installation Guide

1. Safety First: Disconnect the boat's battery and ensure the engine is cool before starting.
2. Access the Area: Open the engine compartment to gain clear access to the exhaust system components.
3. Locate the Hose: Identify the lower exhaust hose connecting the upper exhaust pipe and the exhaust manifold.
4. Remove Old Clamps: Loosen and remove the clamps on both ends of the old exhaust hose.
5. Remove Old Hose: Carefully twist and pull the old hose off the pipe and manifold. Note its orientation.
6. Install New Hose: Slide the new exhaust hose into place, ensuring it is properly seated on both connection points.
7. Secure New Clamps: Position the new stainless steel clamps over the hose ends and tighten them securely.
8. Final Check: Once installed, reconnect the battery and run the engine, checking carefully for any signs of exhaust leaks around the new hose.

Troubleshooting & FAQ

Q: How do I confirm this hose fits my engine?
A: The best method is to compare your existing part number to those listed in our cross-reference table. You should also check the compatible engine model tables on this page to ensure your specific model and year are listed.

Q: What are the signs that my lower exhaust hose needs replacement?
A: Common signs of a failing exhaust hose include visible cracks, brittleness, or splits in the rubber. You may also notice an unusual exhaust smell in the engine bay or hear an audible exhaust leak when the engine is running.

Q: Is this hose resistant to heat and fuel?
A: Yes, this hose is made from high-grade, heat-resistant rubber designed to withstand the high temperatures of the engine's exhaust system and exposure to a marine environment.

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.