Alternator V-Belt for Yanmar 6LY Series Engines – Replaces 119593-42280 and 119593-42280E
Alternator V-Belt for Yanmar 6LY Series Engines – Replaces 119593-42280 and 119593-42280E is backordered and will ship as soon as it is back in stock.
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Alternator V-Belt for Yanmar 6LY Series Engines – Replaces 119593-4...
Alternator V-Belt for Yanmar 6LY Series Engines – Replaces 119593-42280 and 119593-42280E is backordered and will ship as soon as it is back in stock.
Product Details
This alternator belt is designed for Yanmar Marine Inboard 6LY-series engines. It is intended for alternator drive applications and provides the belt connection required for the engine charging system.
This single replacement belt is listed for Yanmar references 119593-42280 and 119593-42280E. Confirm the part number and engine model before ordering.
- Product type: Marine alternator belt
- Application: Alternator belt
- Quantity: One belt
- Brand application: Yanmar Marine Inboard
Part Number Matrix
Use the following manufacturer references to compare this replacement belt with the belt specified for your engine.
| Brand | Part Number | Application |
|---|---|---|
| Yanmar | 119593-42280 | Alternator belt reference |
| Yanmar | 119593-42280E | Alternator belt reference |
Engine & Model Compatibility
The company fitment listing identifies this belt for the following Yanmar 6LY models. Model suffixes and belt applications can vary, so compare the part number with your engine documentation before installation.
| Brand | Engine Model | Application | Reference Part Numbers |
|---|---|---|---|
| Yanmar | 6LYA-STP | Alternator belt | 119593-42280; 119593-42280E |
| Yanmar | 6LYA-STE | Alternator belt | 119593-42280; 119593-42280E |
| Yanmar | 6LYA-UTE | Alternator belt | 119593-42280; 119593-42280E |
| Yanmar | 6LY2A-STP | Alternator belt | 119593-42280; 119593-42280E |
| Yanmar | 6LY2A-UTP | Alternator belt | 119593-42280; 119593-42280E |
| Yanmar | 6LY2M-WDT | Alternator belt | 119593-42280; 119593-42280E |
| Yanmar | 6LY2M-WST | Alternator belt | 119593-42280; 119593-42280E |
| Yanmar | 6LYM-UTE | Alternator belt | 119593-42280; 119593-42280E |
| Yanmar | 6LYM-STE | Alternator belt | 119593-42280; 119593-42280E |
| Yanmar | 6LYM-UTEHD | Alternator belt | 119593-42280; 119593-42280E |
| Yanmar | 6LY-STE | Alternator belt | 119593-42280; 119593-42280E |
Technical Specs
- Product Type
- Marine alternator V-belt
- Application
- Alternator belt for Yanmar 6LY-series marine inboard engines
- Quantity
- One belt
- Reference Part Numbers
- 119593-42280 and 119593-42280E
- Engine Family
- Yanmar 6LY series
What’s in the Box
- 1 x alternator belt
Installation Notes
- Turn the engine off and allow it to cool before beginning work.
- Disconnect the battery or follow the engine manufacturer’s safe-isolation procedure to prevent accidental starting.
- Record the existing belt routing around the pulleys before removal.
- Release the belt tension according to the engine service instructions and remove the old belt.
- Inspect the pulleys for damage, contamination, misalignment, or excessive wear before installing the replacement.
- Route the replacement belt through the same pulley path and ensure it is fully seated in each groove.
- Adjust belt tension according to the Yanmar service manual for the specific engine installation. Do not rely on a generic tension value when the manufacturer’s specification is available.
- Tighten the alternator adjustment and pivot fasteners to the manufacturer’s specified torque.
- Reconnect the battery, start the engine, and check that the belt runs smoothly without abnormal noise or visible tracking problems.
- Recheck the installation after the initial run and correct any looseness or misalignment according to the service instructions.
Troubleshooting & FAQ
How do I confirm that this belt fits my Yanmar engine?
Compare your complete engine model and the belt reference in the engine service documentation with the compatibility table above. This listing covers the listed Yanmar 6LY models and references 119593-42280 and 119593-42280E.
What are signs that an alternator belt may need replacement?
Inspect the belt for cracking, fraying, glazing, contamination, abnormal wear, or visible damage. Squealing, belt slip, charging-system problems, or unusual belt tracking can also indicate a belt, pulley, alignment, or tension issue.
How should the new belt be tensioned?
Use the tension procedure and specification in the Yanmar service manual for your exact engine installation. Belt tension that is too low can cause slip, while excessive tension can place unnecessary load on bearings and pulleys.
Is this an OEM Yanmar belt?
This listing is for a replacement marine belt identified for the listed Yanmar applications. It is not represented as a genuine Yanmar-branded component. The Yanmar part numbers shown are reference numbers for fitment identification.
Does this product include a pulley, tensioner, or other hardware?
No. The package contains one alternator belt only. Pulleys, tensioners, fasteners, and other installation components are not included.
How often should the belt be replaced?
Follow the inspection and replacement guidance for your engine. Inspect the belt during routine service and replace it when wear, damage, contamination, or loss of tension is found.
What should I do if the model or part number does not match?
Do not install the belt based only on a similar-looking engine model. Confirm the complete engine model and the required belt reference before ordering or installation.
Safety & Important Information
- Verify the complete engine model and reference part number before purchase.
- Always work with the engine stopped, cooled, and safely isolated from accidental starting.
- Use the engine manufacturer’s service information for belt routing, tension, and fastener torque.
- Professional installation is recommended when the belt drive system or engine access is unfamiliar.
About Sea Sierra
- Marine Parts Support — We supply replacement parts for marine engine service and maintenance applications.
- Fitment-Focused Listings — Product references and application details are provided to help you compare the part with your engine.
- Practical Service Information — Review the engine manufacturer’s documentation for installation specifications and maintenance procedures.
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