Timing Belt – Fits Yamaha F25-F40 (Replaces 65W-46241-00-00, 57-57009, REC65W-46241-00)
Timing Belt – Fits Yamaha F25-F40 (Replaces 65W-46241-00-00, 57-57009, REC65W-46241-00) is backordered and will ship as soon as it is back in stock.
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Delivery and Shipping
Delivery and Shipping
Orders are typically processed within 1–2 business days.
U.S. orders usually arrive within 6–15 days, depending on stock location and destination.
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Timing Belt – Fits Yamaha F25-F40 (Replaces 65W-46241-00-00, 57-570...
Timing Belt – Fits Yamaha F25-F40 (Replaces 65W-46241-00-00, 57-57009, REC65W-46241-00) is backordered and will ship as soon as it is back in stock.
Product Details
This replacement Timing Belt is engineered for Yamaha 4-Stroke outboard motors from 25 to 40 HP, including F25 and T25 models (1998–2006), all F30 models, and F40 models (2000–2008). It ensures precise camshaft and crankshaft synchronization for reliable engine performance.
This part is a direct replacement for Yamaha part number 65W-46241-00-00 and EMP part 57-57009.
- Installs as a direct OEM-equivalent replacement.
- V-Belt design built to withstand harsh marine environments.
- Includes one timing belt for a complete service.
Part Number Matrix
Use this matrix to confirm equivalent references across OEM and aftermarket.
| Brand | Part Number |
|---|---|
| Yamaha | 65W-46241-00-00 |
| EMP | 57-57009 |
Engine & Model Compatibility
Confirm your engine model/year in the table below.
This belt fits a range of Yamaha 4-stroke outboards. Please verify your specific model and year before ordering.
| Brand | Model | Rated HP | Stroke | Years | OEM Part No. | Notes |
|---|---|---|---|---|---|---|
| Yamaha | F25 | 25 | 4-Stroke | 1998–2006 | 65W-46241-00-00 | |
| Yamaha | T25 | 25 | 4-Stroke | 1998–2006 | 65W-46241-00-00 | High thrust model |
| Yamaha | F30 | 30 | 4-Stroke | All years | 65W-46241-00-00 | |
| Yamaha | F40 | 40 | 4-Stroke | 2000–2008 | 65W-46241-00-00 |
Technical Specs
- Product Type
- Timing Belt
- Installation
- OEM Direct Replacement
- Housing Material
- Rubber/Composite
- Housing Color
- Black
- Other Technical Attributes
- V-Belt design, withstands harsh marine conditions
What’s in the Box
- 1 x V-Belt (65W-46241-00-00)
Installation Notes
- Disconnect the battery before beginning work.
- Remove the engine cowling and any plastic covers to access the timing belt.
- Carefully align crankshaft and camshaft timing marks as specified in your service manual. Do not proceed if misaligned.
- Loosen the belt tensioner pulley and slide the old belt off the sprockets.
- Install the new belt, ensuring it engages correctly with all sprockets and that timing marks have not moved.
- Apply correct tension using the tensioner assembly per your engine's specifications.
- Manually rotate the crankshaft through two full revolutions and confirm all timing marks are still perfectly aligned.
- Reassemble all covers, reinstall the cowling, and reconnect the battery.
Troubleshooting & FAQ
How do I know if my timing belt needs replacing?
Inspect the belt for visible signs of wear such as cracks, fraying, glazing, missing teeth, or contamination with oil. A high-pitched whining noise from the belt area during operation or a noticeable drop in engine performance can also indicate it's time for a replacement.
What is the typical replacement interval for this belt?
Always consult your Yamaha service manual for the exact maintenance schedule. As a general rule, inspect the belt every 200 hours and plan for replacement every 5 years or 1000 hours, whichever occurs first, to prevent catastrophic engine failure.
Can I install this timing belt myself?
While DIY installation is possible for experienced mechanics with the correct tools, professional installation is strongly recommended. Incorrect timing belt alignment or tension can cause severe, non-warrantable engine damage.
Is this aftermarket belt as reliable as the OEM part?
Yes. This aftermarket belt is engineered to meet or exceed original equipment manufacturer (OEM) specifications for material composition, durability, and fit. It provides a cost-effective and reliable alternative to the OEM part.
OEM vs. Aftermarket?
This listing is an aftermarket replacement (not OEM). Built to OEM-level specifications with comparable materials. Manufactured in an ISO 9002 facility, batch-inspected for consistency.
Shipping speed & cost
We ship worldwide quickly—typical transit 5–15 days. Standard shipping is free; expedited options appear at checkout where available.
Warranty & returns
Covered by a 1-year warranty against manufacturing defects under normal use. If issues arise, contact support with your order details. Returns are accepted within our standard window (unused & in original condition). See our policy page or reach out for instructions.
Safety & Important Info
- Verify images/specifications vs your original part. If anything differs—even if your model appears compatible—do not purchase.
- This is an aftermarket replacement, not an OEM component.
- Professional installation is recommended for safety and performance.
About Sea Sierra
- Pro-Grade Standards — We supply marine parts engineered to OEM-level tolerances and tested for real-world conditions.
- Fast Global Fulfillment — Free standard delivery to most regions in 5–15 days.
- Manufacturer-Direct Value — Fair pricing without compromising on materials or QC.
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