V-Belt – Fits Mercury/Mercruiser 3.0L & 1.7L Diesel (Replaces 862054Q)
This aftermarket engine V-belt is designed for Mercury/Mercruiser 3.0L 4-stroke gasoline engines (1999 and up) and CMD 1.7L diesel engines. It functions as a direct replacement for the original OEM belt used for power steering and alternator applications, ensuring reliable performance.
This component is a direct replacement for the following OEM part numbers: Mercury/Mercruiser 862054Q, 57-862054Q, 8M2017519; Volvo Penta 958310, 966914; and Chrysler 1401622.
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Material: Constructed from durable rubber with reinforced fibers for longevity.
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Application: Suitable for power steering and alternator systems.
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Included: This package contains one V-Belt.
Part Number Cross-Reference
Use this table to confirm equivalent part numbers across OEM and aftermarket brands.
Brand |
Part Number |
Mercury/Mercruiser |
862054Q |
Mercury/Mercruiser |
57-862054Q |
Mercury/Mercruiser |
8M2017519 |
Volvo Penta |
958310 |
Volvo Penta |
966914 |
Chrysler |
1401622 |
Compatible Engine Models
Confirm your engine model/year in the table below. For Mercury owners, here’s a guide to help you identify your engine’s serial/model: Mercury Serial Number Guide. You can also review exploded diagrams to verify part numbers: Mercury Parts Diagrams & Catalog.
Confirm your engine model/year in the table below.
Mercury/Mercruiser
Brand |
Model |
Rated HP |
Stroke |
Years |
OEM Part No. |
Notes |
Mercury/Mercruiser |
3.0L GM 181 I/L4 |
135-140 |
4-Stroke |
1999 and up |
57-862054Q |
Fits engines 1A002000 THRU 1A020543, 1A020544 & Up |
Mercury/Mercruiser |
3.0L MPI EC |
135-140 |
4-Stroke |
2006 and up |
57-862054Q |
Fits engines 1A072812 & Up |
Mercury/Mercruiser |
3.0L TKS Plus |
135 |
4-Stroke |
2005 and up |
57-862054Q |
Fits engines 1G404114 & Up |
Mercruiser |
CMD 1.7 MI 120 I/L4 |
120 |
4-Stroke |
2003 and up |
57-862054Q |
Diesel model, fits engines 88109041 & up |
Mercruiser |
CMD 1.7 MS 120 I/L4 |
120 |
4-Stroke |
2003 and up |
57-862054Q |
Diesel model, fits engines 8810800 & up |
Volvo Penta
Brand |
Model |
Rated HP |
Stroke |
OEM Part No. |
Notes |
Volvo Penta |
Various 3.0L |
130-140 |
4-Stroke |
958310/966914 |
Application details limited in sources |
Technical Specifications
Specification |
Value |
Product Type |
V-Belt |
Installation |
Engine Accessory Belt |
Material |
Rubber with Reinforced Fibers |
Application |
Power Steering/Alternator |
Dimensions |
39.5 inches length (1003.3 mm) |
Color |
Black |
Type |
V-Groove Belt |
Warranty |
1 Year |
Package Contents
Installation Guide
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Safety First: Disconnect the boat's battery before beginning work to prevent accidental starts or electrical shorts.
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Locate the Belt System: Identify the belt, pulleys, and the belt tensioner in the engine bay.
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Release Tension: Use a suitable wrench or breaker bar on the tensioner pulley to release the tension on the old belt.
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Remove Old Belt: Carefully slide the old belt off the pulleys. Note the routing path.
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Install New Belt: Route the new V-belt around the pulleys, following the diagram in your engine manual or the path of the old belt.
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Apply Tension: Slowly release the tensioner to apply the correct tension to the new belt. Ensure it is seated properly in all pulley grooves.
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Final Check: Reconnect the battery. Start the engine and listen for any unusual noises. Check that the belt is running smoothly.
Troubleshooting & FAQ
How do I know if this belt fits my Mercruiser 3.0L engine?
This belt fits Mercruiser 3.0L engines from 1999 and up. To be certain, please check the serial number ranges provided in the "Compatible Engine Models" table or cross-reference your existing belt's part number with the numbers listed (e.g., 862054Q, 57-862054Q).
What are the signs that my V-belt needs replacing?
Common signs of a failing V-belt include visible cracks, fraying, or glazing on the belt surface. You might also hear squealing noises from the engine bay, especially on startup or when turning the steering wheel, indicating the belt is slipping.
Is this a genuine Mercruiser OEM belt?
This is a high-quality aftermarket belt designed to meet or exceed OEM specifications. It replaces OEM part number 862054Q but is not an original Mercury/Mercruiser component.
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?
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Quality Assured: As a trusted manufacturer for over 20 years, we supply top marine brands globally.
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Fast Global Shipping: Free delivery worldwide in 5–15 days.
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Direct from Manufacturer: Competitive pricing without compromising quality.