Serpentine Belt – Fits Volvo Penta 4.3L, 5.0L, 5.7L V6 & V8 Engines (Replaces 3817287, 3889124)

Serpentine Belt – Fits Volvo Penta 4.3L, 5.0L, 5.7L V6 & V8 Engines (Replaces 3817287, 3889124)

This serpentine belt is designed for reliable performance in Volvo Penta 4.3L V6 and 5.0L, 5.7L V8 marine engines equipped with serpentine belt systems, covering a range of models including the GL, GXi, and OSi series.

It serves as a direct replacement for Volvo Penta part numbers 3817287 and 3889124, ensuring a precise fit and restoring proper function to your engine's accessory drive system.

• Durable Construction: Made from high-strength, fiber-reinforced rubber for longevity in marine environments.
• Primary Function: Drives critical engine components, including the alternator and water pump.
• Engine Compatibility: Engineered specifically for gasoline-powered Volvo Penta 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

• 1 x Serpentine Belt (Replaces 3889124/3817287)

Installation Guide

1. Safety First: Ensure the engine is off and cool, and disconnect the battery terminals.
2. Release Tension: Locate the belt tensioner. Using the appropriate tool (typically a socket or wrench), rotate the tensioner to release pressure on the belt.
3. Remove Old Belt: While holding the tensioner, carefully slide the old belt off the pulleys. Note the belt's routing path or take a photo for reference.
4. Inspect Pulleys: Before installing the new belt, check that all pulleys are clean and spin freely without any wobble or grinding noises.
5. Route New Belt: Following your engine's diagram, route the new serpentine belt around all pulleys, leaving the tensioner pulley for last.
6. Apply Tension: Rotate the tensioner again, slip the belt over the final pulley, and slowly release the tensioner to tighten the belt. Double-check that the belt is correctly seated in the grooves of every pulley.
7. Final Check: Reconnect the battery, start the engine, and briefly observe the belt to ensure it runs smoothly and quietly.

Troubleshooting & FAQ

How do I confirm this belt fits my specific Volvo Penta engine?
Verify that your engine model is listed in the 'Compatible Engine Models' table. It is also critical to cross-reference the OEM part number—3889124 or 3817287—with your engine's service manual or the number printed on your existing belt.

What are common signs that my serpentine belt needs replacement?
Look for visible cracks, fraying, glazing (a shiny surface), or missing rib material. Squealing or chirping noises from the engine, especially on startup or during sharp turns, are also strong indicators of a worn or failing belt.

How often should I replace my marine serpentine belt?
As a general guideline, inspect the belt at every service interval and plan for replacement every 3-5 years, depending on hours of use and operating conditions. Always follow the specific recommendations in your engine's service manual.

Is this belt the same quality as the original Volvo Penta part?
This is a high-quality aftermarket belt manufactured to meet or exceed OEM specifications. It is constructed from durable, fiber-reinforced rubber to deliver reliable performance in demanding marine environments.

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.