SKU: 36341433947

Serpentine Belt – Fits Volvo Penta 4.3L, 5.0L, 5.7L V6/V8 Engines (Replaces 21132390)

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Description

Serpentine Belt – Fits Volvo Penta 4.3L, 5.0L, 5.7L V6/V8 Engines (Replaces 21132390)Serpentine Belt Fits Volvo Penta 4. 3L, 5. 0L, 5. 7L V6 V8 Engines (Replaces 21132390) This serpentine belt is designed for reliable performance in Volvo Penta gasoline marine engines. It is a direct fit replacement for the belt that drives the alternator and other critical engine accessories, ensuring proper operation and power delivery. Engineered to meet or exceed OEM specifications, this belt fits a wide range of Volvo Penta 4. 3L V6 and 5. 0L to

Serpentine Belt – Fits Volvo Penta 4.3L, 5.0L, 5.7L V6/V8 Engines (Replaces 21132390)

This serpentine belt is designed for reliable performance in Volvo Penta gasoline marine engines. It is a direct-fit replacement for the belt that drives the alternator and other critical engine accessories, ensuring proper operation and power delivery.

Engineered to meet or exceed OEM specifications, this belt fits a wide range of Volvo Penta 4.3L V6 and 5.0L to 5.7L V8 models, including various GXi, Gi, OSi, and OSXi series inboards and stern drives. It serves as a direct replacement for Volvo Penta part numbers 21132390, 3861034, 3889126, and 3817290.

  • Direct Replacement Installation: Designed for an exact fit, requiring no modifications for installation.
  • Durable Construction: Made from a robust rubber/composite material to withstand the harsh marine environment.
  • Function: Drives essential engine accessories, including the alternator.

Part Number Cross-Reference

Use this table to confirm an equivalent part number for your application.

Brand Part Number
Volvo Penta 21132390
Volvo Penta 3861034
Volvo Penta 3889126
Volvo Penta 3817290

Compatible Engine Models

Confirm your engine model/year in the table below.

Brand Model Rated HP Stroke OEM Part No.
Volvo Penta 4.3GXi-J 4.3L V6 4-Stroke 21132390
Volvo Penta 4.3GXi-JF 4.3L V6 4-Stroke 21132390
Volvo Penta 4.3GXiE-M 4.3L V6 4-Stroke 21132390
Volvo Penta 4.3OSi-J 4.3L V6 4-Stroke 21132390
Volvo Penta 4.3OSi-JF 4.3L V6 4-Stroke 21132390
Volvo Penta 5.0GXi-J 5.0L V8 4-Stroke 21132390
Volvo Penta 5.0GXi-JF 5.0L V8 4-Stroke 21132390
Volvo Penta 5.0GXi-N 5.0L V8 4-Stroke 21132390
Volvo Penta 5.0GXiE-J 5.0L V8 4-Stroke 21132390
Volvo Penta 5.0GXiE-JF 5.0L V8 4-Stroke 21132390
Volvo Penta 5.0GXiE-K 5.0L V8 4-Stroke 21132390
Volvo Penta 5.0GXiE-KF 5.0L V8 4-Stroke 21132390
Volvo Penta 5.0GXiE-M 5.0L V8 4-Stroke 21132390
Volvo Penta 5.0GXiE-MF 5.0L V8 4-Stroke 21132390
Volvo Penta 5.0GXiE-N 5.0L V8 4-Stroke 21132390
Volvo Penta 5.0OSi-J 5.0L V8 4-Stroke 21132390
Volvo Penta 5.0OSi-JF 5.0L V8 4-Stroke 21132390
Volvo Penta 5.0OSiE-J 5.0L V8 4-Stroke 21132390
Volvo Penta 5.0OSiE-JF 5.0L V8 4-Stroke 21132390
Volvo Penta 5.7Gi-300-J 5.7L V8 4-Stroke 21132390
Volvo Penta 5.7Gi-300-JF 5.7L V8 4-Stroke 21132390
Volvo Penta 5.7Gi-300-N 5.7L V8 4-Stroke 21132390
Volvo Penta 5.7GiE-300-J 5.7L V8 4-Stroke 21132390
Volvo Penta 5.7GiE-300-JF 5.7L V8 4-Stroke 21132390
Volvo Penta 5.7GiE-300-K 5.7L V8 4-Stroke 21132390
Volvo Penta 5.7GXi-J 5.7L V8 4-Stroke 21132390
Volvo Penta 5.7GXi-JF 5.7L V8 4-Stroke 21132390
Volvo Penta 5.7GXi-N 5.7L V8 4-Stroke 21132390
Volvo Penta 5.7GXiE-J 5.7L V8 4-Stroke 21132390
Volvo Penta 5.7GXiE-JF 5.7L V8 4-Stroke 21132390
Volvo Penta 5.7OSi-300-J 5.7L V8 4-Stroke 21132390
Volvo Penta 5.7OSi-300-JF 5.7L V8 4-Stroke 21132390
Volvo Penta 5.7OSiE-300-J 5.7L V8 4-Stroke 21132390
Volvo Penta 5.7OSiE-300-JF 5.7L V8 4-Stroke 21132390
Volvo Penta 5.7OSXi-J 5.7L V8 4-Stroke 21132390
Volvo Penta 5.7OSXi-JF 5.7L V8 4-Stroke 21132390
Volvo Penta 5.7OSXiE-J 5.7L V8 4-Stroke 21132390
Volvo Penta 5.7OSXiE-JF 5.7L V8 4-Stroke 21132390

Technical Specifications

Product Type Serpentine Belt
Installation Direct OEM Replacement
Belt Type V-Belt
Length 1130mm (44.5")
Thickness/Width 20mm (0.79")
Material Rubber/Composite
Color Black
Belt Profile Serpentine/Ribbed
Other Technical Attributes Drives alternator and accessories on Volvo Penta marine engines

Package Contents

  • 1 x Serpentine V-Belt (Replaces 21132390, 3861034, 3889126, 3817290)

Installation Guide

  1. Safety First: Ensure the engine is off and cool, and disconnect the battery terminals.
  2. Locate Tensioner: Identify the automatic belt tensioner pulley.
  3. Document Path: Take a clear photo or draw a diagram of the belt's routing around the pulleys.
  4. Release Tension: Use a properly sized wrench or breaker bar on the tensioner to release the belt tension.
  5. Remove Old Belt: Carefully slip the old belt off the pulleys.
  6. Inspect Pulleys: Check all pulleys for wobble, signs of wear, or damage before installing the new belt.
  7. Install New Belt: Following your diagram, route the new belt around all pulleys, leaving the tensioner for last.
  8. Apply Tension: Release the tensioner slowly to apply pressure to the new belt, making sure it is properly seated in every pulley groove.
  9. Final Check: Reconnect the battery, start the engine, and listen for any unusual noises while visually confirming the belt is running true.

Troubleshooting & FAQ

How do I know if this belt fits my Volvo Penta engine?

This belt is designed for specific Volvo Penta 4.3L, 5.0L, and 5.7L V6/V8 engines in the GXi, Gi, OSi, and OSXi series. Please check our "Compatible Engine Models" table and cross-reference your exact model number. It is also critical to confirm that your current belt's part number matches one of the direct replacements: 21132390, 3861034, 3889126, or 3817290.

What are the signs my serpentine belt needs replacement?

Common signs of a failing belt include visible cracks, fraying, missing ribs, or a glazed, shiny appearance on the belt surface. You may also hear loud squealing or chirping sounds from the engine bay or experience problems with accessories like a weak alternator or overheating.

What is the difference between a serpentine belt and a timing belt?

This product is a serpentine belt, also known as a V-belt or accessory drive belt. Its job is to power engine accessories like the alternator and water circulation pump. It is different from a timing belt, which synchronizes the engine's internal crankshaft and camshafts. M-istaking one for the other can cause serious engine damage, so always verify the correct part for your needs.

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.
Shipping Notes
  • Free Standard Shipping on $100+ Orders to the USA.
  • Except Preorder products are shipped in 48 hours.
  • Delivery to the USA:
  1. Standard Shipping : 3-10 business days
  • If time is of the essence, please consider selecting expedited delivery for faster service.
Exchange/Return Notes
  • We offer a 30-day return/exchange service after receiving.
  • Final sale items are not eligible for returns or exchanges.
  • To process your return/exchange, please contact us at [email protected]
  • Please click here for more details>>> Return & Exchange Policy
SKU: 36341433947

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Reviewed in the United States on April 18, 2026
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Andrew
Waukegan, US
★★★★★ 5
Good Charging Station!
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I’ve been using the Anker Nano 7-in-1 charging station for a few weeks now and overall I’m happy with it. I wanted something that could replace multiple chargers on my desk, and this does exactly that. Being able to plug in a laptop, phone, and a few other devices at the same time without swapping cords has been really convenient. The USB-C ports provide fast charging, including enough power for a laptop, which was important to me. Everything charges reliably and the unit doesn’t get excessively warm during normal use. The build quality feels solid, which is what I’ve come to expect from Anker products. It also doesn’t take up much space, so it works well on a desk or nightstand. One thing to be aware of is that when multiple devices are plugged in, charging speeds can vary depending on what’s connected. It hasn’t been a problem for me, but it’s worth noting. Also, it’s a bit heavier than a basic power strip, so it’s better suited for stationary use rather than travel. Overall, this is a well-made charging station that helps keep things organized and cuts down on cable clutter. If you have several devices to charge and want a cleaner setup, this is a good option. Pros: Charges multiple devices at once Fast USB-C charging, including laptops Solid build quality Helps reduce cable clutter Cons: Charging speed varies with multiple devices Slightly bulky for travel TL;DR: A reliable and convenient charging station that does what it’s supposed to do.
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Reviewed in the United States on January 28, 2026
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Josh McDermott
Lake Worth, US
★★★★★ 4
Good quality and works perfectly but could use more features.
Color: Black
Overall, it's great, I love the ability to clean up my desk and charge all of my stuff, it really makes it SO much cleaner. However, I feel like it could use more features. The fake screen is 4.5" on 2", however, the actual embedded screen is under 1"/1". Also, the USB-C numbering system seems to be off, but I recognize this is all super picky. I really wish they had used the face area to put a clock or a larger screen. The charge speed is great, but I haven't tried charging my laptop or anything heavy off of it. Overall, if you don't care about the minor gripes ,then it's perfect.
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Reviewed in the United States on December 28, 2025
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TBarron
New York, US
★★★★★ 5
Perfect charging port for the minimalist look
Color: White
This charging station is amazing. I needed something minimal to go on my desk and I was so tired of having cords everywhere. The fact that there are two retractable usb c ports is an absolute game changer. Love the look overall and charging capabilities are endless. Love that there are extra outlets as well as an addition usb c and a port. Great value for the money and definitely look out for deals. This thing is perfect. May have to buy another one for the bedroom nightstand.
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Reviewed in the United States on May 24, 2026
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Fadi
Los Angeles, US
★★★★★ 5
Worth every penny
Color: Black
Amazing product. Looks sleek on my desk and very minimal design I love. Two retractable usbc cables and additional ports on the side are nice. They thought this product through. Worth the price great value for money spent.
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