Exhaust Elbow Riser Gasket – Fits Volvo Penta V6 & V8 Marine Engines (Replaces 835908, 856039, 857618)

Exhaust Elbow Riser Gasket – Fits Volvo Penta V6 & V8 Marine Engines

This exhaust elbow riser gasket is designed for Volvo Penta V6 (4.3L) and V8 (5.0L, 5.7L, 8.1L) marine engines manufactured between 1979 and 1993. It is specifically for models with center-rise exhaust manifolds and pre-SX drives.

It serves as a direct replacement for multiple OEM and aftermarket part numbers, ensuring a reliable seal between the exhaust manifold and the riser.

• Package Includes: Two gaskets, enough for a complete V6 or V8 engine service.
• Installation Location: Mounts between the exhaust manifold and the exhaust elbow/riser.
• Fuel Compatibility: Designed for gasoline engines.

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 Riser Gaskets (Replaces 835908, 856039, 857618)

Installation Guide

1. Safety First: Ensure the engine is completely cool and disconnect the battery terminals.
2. Drain Coolant: If your system is fresh-water cooled, partially drain the coolant to a level below the exhaust manifolds.
3. Remove Riser Bolts: Carefully loosen and remove the bolts connecting the exhaust riser to the manifold.
4. Separate Components: Gently detach the riser from the manifold. You may need to lightly tap it with a rubber mallet if it is stuck.
5. Clean Surfaces: Remove the old gasket and thoroughly clean any remaining gasket material or corrosion from both mating surfaces. A plastic scraper can prevent gouging.
6. Position New Gasket: Place the new gasket onto the manifold, ensuring it aligns perfectly with the bolt holes and passages.
7. Reassemble: Re-position the exhaust riser and hand-tighten the bolts.
8. Torque Bolts: Tighten the bolts in a crossing pattern to the manufacturer's recommended torque specification to ensure an even seal.
9. Finalize: Reconnect any hoses, refill the coolant if drained, and reconnect the battery.
10. Check for Leaks: Start the engine and carefully inspect for any water or exhaust leaks around the new gasket seal.

Troubleshooting & FAQ

Q: How do I confirm this gasket fits my engine?
A: Verify your engine is a Volvo Penta V6 or V8 model from 1993 or earlier with a center-rise style exhaust manifold and a pre-SX sterndrive. The most reliable method is to cross-reference the part number stamped on your old gasket with the numbers listed in our cross-reference table (e.g., 835908, 856039, 857618).

Q: What are the signs of a failed riser gasket?
A: Common symptoms include visible water leaks or rust streaks from the joint between the riser and manifold, engine overheating, or water intrusion into the engine cylinders, which can cause catastrophic failure.

Q: Does this kit include enough gaskets for my V8 engine?
A: Yes, this package includes two gaskets, which is the required quantity for servicing both exhaust manifolds on a V-style engine (V6 or V8).

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.