Marine V-Belt for Volvo Penta and OMC 4.3L, 5.0L and 5.7L Engines – Replaces 3852464
Marine V-Belt for Volvo Penta and OMC 4.3L, 5.0L and 5.7L Engines – Replaces 3852464 is backordered and will ship as soon as it is back in stock.
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Delivery and Shipping
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Marine V-Belt for Volvo Penta and OMC 4.3L, 5.0L and 5.7L Engines –...
Marine V-Belt for Volvo Penta and OMC 4.3L, 5.0L and 5.7L Engines – Replaces 3852464 is backordered and will ship as soon as it is back in stock.
Product Details
This marine V-belt is designed for selected Volvo Penta stern-drive and OMC Cobra stern-drive applications. It is used as a power-steering belt on compatible gasoline engines and is supplied as one individual belt.
The belt is listed for selected Volvo Penta 4.3 GL, 4.3 GS, 4.3 Gi, 5.0 GL BY/PJX/WT/EF and 5.7 GL BY/WT/EF applications. OMC applications include selected 3.8L V6, 4.3L V6, 5.0L V8 and 5.7L V8 engines, including King Cobra configurations. Confirm the exact engine model, year and belt reference before ordering.
- Marine V-belt for compatible stern-drive and out-drive systems.
- Power-steering belt application where specified by the engine configuration.
- Aftermarket replacement for the listed OEM and Sierra references.
- One belt supplied; this is not a multi-piece kit.
Part Number Matrix
Use these references to compare the belt with the part removed from your engine. Part-number matching should be combined with model and application verification.
| Reference Type | Part Number |
|---|---|
| Volvo Penta OEM reference | 3852464 |
| Volvo Penta OEM reference | 315769 |
| OMC OEM reference | 908929 |
| Sierra aftermarket reference | 18-15455 |
Engine & Model Compatibility
The company fitment information identifies the following applications. Fitment can vary by drive package, pulley arrangement and production year, so compare the original belt and the complete engine identification before installation.
| Brand / Drive | Engine or Model | Configuration | Year or Condition | Listed Reference |
|---|---|---|---|---|
| Volvo Penta stern / out-drive | 4.3 GL, 4.3 GS, 4.3 Gi | 4.3L gasoline V6 | Verify exact model and pulley arrangement | 3852464 |
| Volvo Penta stern / out-drive | 5.0 GL BY, PJX, WT and EF | 5.0L gasoline V8 | Verify exact model and pulley arrangement | 3852464 |
| Volvo Penta stern / out-drive | 5.7 GL BY, WT and EF | 5.7L gasoline V8 | Verify exact model and pulley arrangement | 3852464 |
| OMC Cobra stern / out-drive | 3.8L V6 / 229 CID | Gasoline V6 | 1982–1986 listings | 908929 |
| OMC Cobra stern / out-drive | 4.3L V6 / 262 CID | Gasoline V6 | 1982–1989 listings | 908929 |
| OMC Cobra stern / out-drive | 5.0L V8 / 305 CID | Gasoline V8 | 1982–1987 listings | 908929 |
| OMC Cobra stern / out-drive | 5.7L V8 / 350 CID | Gasoline V8 | 1982–1990 listings; includes a 1988 King Cobra listing | 908929 |
| OMC Cobra stern / out-drive | 262, 305, 350 and 454 applications | Gasoline V6/V8 | Confirm exact engine and belt routing | 0778030 listed by company |
Technical Specs
- Product Type
- Marine V-belt / power-steering belt
- Application
- Selected Volvo Penta and OMC Cobra stern-drive or out-drive systems
- Drive Type
- V-belt pulley drive
- Quantity
- One belt
- Aftermarket Reference
- Sierra 18-15455
- OEM References
- 3852464, 315769 and 908929
What’s in the Box
- 1 x Marine V-belt / power-steering belt
Installation Notes
- Disconnect the battery and allow the engine to cool before beginning work.
- Locate the belt and inspect the pulley arrangement, belt routing and tensioning method.
- Loosen the appropriate adjustment bolt or tensioning hardware.
- Remove the old belt from all pulleys without forcing it over the pulley edges.
- Route the replacement belt exactly as shown in the engine or drive service manual.
- Make sure the belt is fully seated in each V-groove and is not twisted.
- Set belt tension to the engine manufacturer's specification. Do not over-tension.
- Tighten the adjustment hardware, reconnect the battery and run the engine briefly.
- Stop the engine and recheck belt alignment, tension and unusual noise before returning the boat to service.
Troubleshooting & FAQ
How do I know if this belt is the right one for my engine?
Compare the belt's reference number and physical profile with the original belt, then verify the complete engine and drive model against the compatibility information. The listed references include Volvo Penta 3852464 and 315769, OMC 908929, and Sierra 18-15455.
What are the signs of a worn power-steering belt?
Squealing, slipping, visible cracking, glazing, fraying, belt dust, reduced steering assistance or a belt that repeatedly loses tension can indicate wear or an alignment problem. Inspect the pulleys and tensioning hardware as well as the belt.
Does this product include a pulley, tensioner or other hardware?
No. This listing is for one replacement marine V-belt only. Pulleys, tensioners and installation hardware are not included.
What should I check before ordering?
Check the engine brand, exact model, drive package, production year where applicable, original belt markings and routing. Do not rely on engine displacement alone because pulley configurations can differ.
Safety & Important Info
- Disconnect the battery before service and keep hands, clothing and tools away from moving pulleys during testing.
- Verify the belt reference, profile and routing against your original component and service manual.
- This is an aftermarket replacement and is not manufactured by Volvo Penta, OMC or Sierra.
- Professional installation is recommended if the correct routing or belt tension cannot be confirmed.
About Sea Sierra
- Marine Replacement Parts — We supply replacement components for inboard and stern-drive applications.
- Application-Focused Cataloging — Product information is organized around engine, drive and reference-number compatibility.
- Practical Support — Confirm the original part number and complete engine identification before ordering or installing.
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