Alternator V-Belt – Fits Volvo Penta & OMC 3.0L Marine Engines (Replaces 3853536)

Alternator V-Belt – Fits Volvo Penta & OMC 3.0L Marine Engines (Replaces 3853536)

This high-quality aftermarket alternator V-belt is designed for specific Volvo Penta and OMC marine engines. It ensures reliable power transmission from the crankshaft to the alternator, maintaining your engine's charging system. Manufactured to meet or exceed OEM specifications, this belt is a direct replacement for a worn or damaged original.

This belt directly replaces Volvo Penta part number 3853536, OMC part number 3853536, and Sierra Marine part number 18-15118, ensuring a precise fit for the listed compatible engines.

• Durable Construction: Made from high-strength rubber with internal fiber reinforcement for longevity and resistance to heat and oil.
• Engineered for Fit: Designed as an engine-driven belt mounted on a multi-pulley V-groove system for optimal power transfer.
• Quality Certified: Produced in an ISO9002 certified facility to guarantee consistent quality and performance.

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 Alternator V-Belt (3853536)

Installation Guide

Follow these general steps to replace your alternator V-belt. Refer to your engine’s service manual for detailed instructions.

1. Safety First: Disconnect the battery's negative terminal to prevent accidental starts.
2. Locate the Belt: Identify the alternator and the V-belt path around the engine pulleys.
3. Release Tension: Loosen the alternator's pivot and adjusting bolts or use a wrench on the belt tensioner pulley to release tension.
4. Remove Old Belt: Carefully slide the old belt off all pulleys.
5. Verify Fitment: Compare the new belt with the old one to ensure they match in length and width.
6. Install New Belt: Route the new belt around the pulleys according to the diagram in your service manual.
7. Apply Tension: Re-tension the belt by moving the alternator or releasing the tensioner. The belt should have about 1/2 inch of deflection when pressed firmly.
8. Tighten Bolts: Securely tighten the alternator's pivot and adjusting bolts.
9. Final Check: Ensure the belt is properly seated in all pulley grooves.
10. Test: Reconnect the battery, start the engine, and listen for any unusual noises. Check that the alternator is charging correctly.

Troubleshooting & FAQ

How do I confirm this V-belt fits my specific engine?
The best way is to match the part number 3853536 with your old belt or your engine's service manual. You should also verify your engine model and year against the compatibility table provided on this page. This belt is specifically for Volvo Penta 3.0L (GL, GS, and 302 series from 1994-1998) and OMC 3.0L engines.

What are common signs my alternator belt is failing?
Look for visible cracks, fraying, or glazing on the belt's surface. Squealing noises during startup or acceleration, a flickering battery warning light on your dash, or engine overheating can also indicate a worn or loose belt.

How often should an alternator V-belt be replaced?
Replacement intervals vary by engine use and conditions. It's recommended to inspect the belt during every routine service and replace it every 3 to 5 years or as soon as signs of wear appear, whichever comes first.

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.