Serpentine Belt – Fits Volvo Penta 4.3L, 5.0L & 5.7L Inboard Engines (Replaces 3586326)

Serpentine Belt – Fits Volvo Penta 4.3L, 5.0L & 5.7L Inboard Engines (Replaces 3586326)

This serpentine belt is designed for a range of Volvo Penta 4.3L, 5.0L, and 5.7L GI, GXi, and OSi inboard gasoline engines, typically from the 2000s to 2010s. It ensures reliable operation of engine-driven accessories like the alternator and water pump.

This part is a direct replacement for Volvo Penta part number 3586326 and aftermarket numbers 3889124 and 3817287, providing a precise fit and function.

• Drives the alternator and water pump system on compatible engines.
• Engineered for gasoline inboard applications.
• Package includes one high-durability serpentine belt.

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

• 1 x Serpentine Belt (Replaces 3586326)

Installation Guide

Follow these steps for a standard serpentine belt replacement. Always refer to your engine's service manual for model-specific instructions.

1. Safety First: Ensure the engine is off and cool. Disconnect the negative battery terminal.
2. Locate Tensioner: Identify the automatic belt tensioner pulley. It's a spring-loaded or hydraulic pulley that keeps the belt tight.
3. Release Tension: Use a long-handled ratchet or serpentine belt tool to rotate the tensioner, releasing pressure on the belt.
4. Remove Old Belt: While holding the tensioner, carefully slip the old belt off the pulleys. Note the belt's routing path beforehand—taking a photo can be helpful.
5. Route New Belt: Following the correct diagram for your engine, route the new belt around all pulleys, leaving the tensioner or an idler pulley for last.
6. Check Alignment: Make sure the belt's ribbed side is properly seated in the grooves of each pulley.
7. Apply Tension: Slowly release the tensioner to let it apply pressure to the new belt. The belt should be snug.
8. Final Check: Reconnect the battery, start the engine, and visually inspect the belt to ensure it is running smoothly on all pulleys without slipping or squealing.

Troubleshooting & FAQ

How do I confirm this belt fits my Volvo Penta engine?
Verify your engine model (e.g., 5.7GXi-F, 4.3OSi-E) against the "Compatible Engine Models" table on this page. This belt is a direct replacement for Volvo Penta OEM part number 3586326. Cross-referencing this number with your service manual is the best way to ensure compatibility.

What are the signs my serpentine belt is failing and needs replacement?
Common signs of a worn belt include visible cracks, fraying, missing chunks, or a glazed, shiny surface. You may also hear loud squealing or chirping sounds from the engine bay, especially on startup or when turning the wheel. Failing accessories, such as an alternator that isn't charging the battery or a water pump causing overheating, are also critical indicators.

How often should this serpentine belt be replaced?
Preventative replacement is recommended. While there is no universal interval, a general guideline is to inspect the belt annually for wear and tear and consider replacing it every 3-5 years, depending on hours of use and operating conditions (saltwater vs. freshwater). Always consult your engine’s service manual for the manufacturer's specific recommendations.

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.