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

Product Details

This high-temperature Exhaust Elbow Gasket ensures a reliable seal for the exhaust system on a wide range of Volvo Penta and OMC engines. It is designed to fit various Volvo Penta V6 and V8 inboard and stern drive models (160 to 430 HP), OMC stern drive models (185 to 350 HP), and OMC inboard models (305 to 454 HP).

This part is a direct replacement for multiple OEM and aftermarket numbers, including Volvo Penta 3850496 and 3863191, OMC 351325 and 909786, and Sierra 18-0943.

• Designed for direct-fit installation, matching OEM specifications.
• Constructed from high-temperature material suitable for marine exhaust applications.
• The package includes two gaskets to complete the installation.

Part Number Matrix

Use this matrix to confirm equivalent references across OEM and aftermarket.

Engine & Model Compatibility

Confirm your engine model/year in the table below.

This gasket fits a wide variety of Volvo Penta V6 and V8 stern drive and inboard engines.

It is also compatible with many OMC stern drive and inboard engines.

Technical Specs

Product Type

Exhaust Elbow Gasket

Installation

Direct fit

Material

High-temperature gasket material

Application

Exhaust system sealing

Dimensions

100 mm × 65 mm (3.94" × 2.56") [approximate]

Weight

142 g (5 oz)

Configuration

Rectangular with rounded corners, 4-bolt pattern

Fitting Type

4-bolt pattern

Operating Temperature

Suitable for marine exhaust applications

Other Technical Attributes

Manufactured to OEM specifications in ISO9002 certified factory

What’s in the Box

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

Installation Notes

1. Ensure the engine is completely cool before beginning work.
2. Disconnect the boat's battery as a safety precaution.
3. Carefully unbolt and remove the exhaust elbow or riser.
4. Remove the old gasket and discard it. Thoroughly clean any remaining gasket material or sealant from both mating surfaces.
5. Position the new gasket correctly, ensuring all bolt holes are aligned.
6. Reinstall the exhaust elbow and tighten the bolts in a crossing pattern to the manufacturer's recommended torque specifications.
7. Reconnect the battery.
8. Start the engine and carefully check for any exhaust or water leaks around the newly sealed joint.

Troubleshooting & FAQ

Safety & Important Info

• Verify images/specifications vs your original part. If anything differs—even if your model appears compatible—do not purchase.
• This is an aftermarket replacement, not an OEM component.
• Professional installation is recommended for safety and performance.

About Sea Sierra

• Pro-Grade Standards — We supply marine parts engineered to OEM-level tolerances and tested for real-world conditions.
• Fast Global Fulfillment — Free standard delivery to most regions in 5–15 days.
• Manufacturer-Direct Value — Fair pricing without compromising on materials or QC.