Exhaust Elbow Gasket – Fits Volvo Penta & OMC Stern Drive/Inboard (Replaces 3863191, 3850496)

Exhaust Elbow Gasket – Fits Volvo Penta & OMC Stern Drive/Inboard (Replaces 3863191, 3850496)

This exhaust elbow gasket is designed for a wide range of Volvo Penta and OMC engines. It fits various Volvo Penta V6 and V8 inboard and stern drive models from 160 to 430 HP. It is also compatible with OMC stern drive models from 185 to 350 HP and OMC inboard models from 305 to 454 HP.

This gasket is a direct replacement for multiple part numbers, including Volvo Penta 3850496 and 3863191; OMC Stern Drive 351325, 3850496, 909786, and 913783; Sierra 18-0943, 18-0943-1, and 18-0943-2; GLM 33810; Mallory 9-61452; Barr OMC 909786; and OSCO 9863-G.

• Package Contents: Includes 2 x Exhaust Elbow Gaskets.
• Installation: Direct fit replacement for hassle-free installation.
• Material: Constructed from high-temperature gasket material for reliable sealing in marine exhaust applications.

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.

Technical Specifications

Package Contents

• 2 x Exhaust Elbow Gasket (Replaces 3850496, 3863191)

Installation Guide

1. Ensure the engine is completely cool before beginning work.
2. Disconnect the battery to prevent accidental starting.
3. Carefully remove any hoses or components obstructing access to the exhaust elbow.
4. Unscrew the four bolts holding the exhaust elbow in place and remove the elbow.
5. Thoroughly clean both mating surfaces, removing all old gasket material and debris. A clean, smooth surface is critical for a proper seal.
6. Position the new gasket correctly over the bolt holes.
7. Reinstall the exhaust elbow and tighten the bolts in a crisscross pattern to the manufacturer's recommended torque specifications.
8. Reconnect all hoses and components that were removed.
9. Reconnect the battery.
10. Start the engine and carefully check for any exhaust leaks around the new gasket.

Troubleshooting & FAQ

How do I know if this gasket fits my specific Volvo Penta or OMC engine?
This gasket is designed for a broad range of Volvo Penta V6/V8 models (160-430 HP) and OMC stern drive/inboard engines. Please consult the "Compatible Engine Models" and "Part Number Cross-Reference" tables on this page to confirm a match with your engine's model or existing part number.

What are the signs that my exhaust elbow gasket has failed?
Common signs of a failing gasket include visible water leaks around the exhaust elbow/riser connection, steam from the engine compartment, an overheating engine, or water entering the engine cylinders (which can cause severe damage).

How many gaskets are included in one package?
Each package contains a set of two gaskets, as listed in the "Package Contents" section.

OEM vs. Aftermarket?
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.

How fast do you ship and how much does it cost?
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.

What is your warranty and return policy?
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.