Power Steering Serpentine Belt 57-865615Q03 for MerCruiser 4.3 5.0 5.7 6.2 6.3L Alpha Bravo
Power Steering Serpentine Belt 57-865615Q03 for MerCruiser 4.3 5.0 5.7 6.2 6.3L Alpha Bravo
Product Overview
Power-steering serpentine belt for MerCruiser and Quicksilver 4.3L to 6.3L Alpha and Bravo sterndrive engines from 1997-2023. It replaces 57-865615Q03, 57-865615003, 57-862087, 57-862087A1 and 57-8638763, plus Sierra 18-15100. This belt is longer than the non-power-steering version and fits only engines factory-equipped with a power-steering pump. A worn belt shows up as a chirp at idle, glazing or cracks across the ribs, or a steering assist that fades when the belt slips. Replace the belt when the ribs are cracked or the tensioner reaches the end of its travel.
Specifications & Attributes
| Specification | Detail |
|---|---|
| Condition | New / New with tags |
| Type | Serpentine Belt |
| Application | Engines with power steering only |
| Engine | MerCruiser and Quicksilver 4.3L-6.3L |
| Drive | Alpha and Bravo sterndrives |
| Years | Carb and MPI 1997-2023 |
| Quantity | 1 serpentine belt |
| Packaging Size | 20 x 25 x 5 cm (7.9 x 9.8 x 2.0 in) |
OEM Cross Reference
| Brand | OEM Part Numbers |
|---|---|
| MerCruiser | 57-865615Q03, 57-865615003, 57-862087, 57-862087A1, 57-8638763 |
| Sierra | 18-15100 |
Compatible Engines
| Brand | Engine | Serial Range |
|---|---|---|
| MerCruiser | 4.3L V-6 | As listed by engine serial |
| MerCruiser | 5.0L / 5.7L Carb | 0L015751 to 0M599999; 0M600000 to 0W650000 |
| MerCruiser | 5.0L / 5.7L MPI | 0M300000 to 0W650000; 0W650000 to 1A299999; 1A300000 to 1A623185 |
| MerCruiser | 6.2L MPI | 0M300000 to 0W650000; 0W650000 to 1A299999; 1A300000 to 1A623185 |
| MerCruiser | 383 6.3L V-8 | 1G400000 and up |
| Quicksilver | 5.7L 350, 6.3L 383 Bravo | As listed |
What's Included
| Component | Qty |
|---|---|
| Serpentine Belt | 1 |
Condition & Warranty
| Item | Detail |
|---|---|
| Condition | New / New with tags |
| Warranty | Standard |
| Packaging | Sealed retail packaging |
Before You Buy
- This belt fits engines WITH a power-steering pump only — do not order for a non-PS engine
- Confirm your engine serial number against the ranges above
- Photograph the belt routing before removing the old belt
- Check the tensioner and idler pulleys for play while the belt is off
- 30-Day Easy Returns
- Free Worldwide Shipping
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Boat Owners' Review
Before You Buy
Frequently Asked Questions
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We offer a 14-day hassle-free return on all products. Items must be unused and in original packaging. Every XRmarine part is also covered by our 1-year warranty against manufacturing defects. If something is not right, email us at info@xrmarineparts.com — replacement or full refund, your choice.
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