Timing Belt for Yamaha Mercury F40 F50 F60 FT50 FT60 T50 T60 – Replaces 62Y-46241-00
This aftermarket timing belt is designed to fit Yamaha 4-stroke outboard engines in the F40, F50, F60, FT50, FT60, T50, and T60 series manufactured between 1995 and 2010. It also fits select Mercury/Mariner 40hp and 50hp 4-cylinder engines equipped with a belt tensioner (serial numbers 0G231123 through 0P094499).
Direct replacement for Yamaha 62Y-46241-00 and Mercury 825109. Engineered to meet OEM specifications for reliable engine timing and performance.
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Replacement Interval: Every 1000 hours or 5 years of operation
- Essential maintenance component for 4-stroke Yamaha and Mercury outboards
- Manufactured to OEM specifications in an ISO9002-certified facility
Part Number Cross-Reference
Use this table to confirm equivalent part numbers across OEM and aftermarket brands.
| Brand |
Part Number |
| Yamaha |
62Y-46241-00 |
| Mercury |
825109 |
Compatible Engine Models
Confirm your engine model/year in the table below. For Yamaha owners, here's a guide to help you identify your engine's serial/model: Yamaha Serial Number Guide. You can also review exploded diagrams to verify part numbers: Yamaha Parts Diagrams & Catalog.
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.
| Brand |
Model |
Rated HP |
Stroke |
Years |
Notes |
| Yamaha |
F40 |
40 |
4-Stroke |
2002 |
60K |
| Yamaha |
F40 |
40 |
4-Stroke |
1999-2002 |
66W |
| Yamaha |
F50 |
50 |
4-Stroke |
2003-2010 |
60A |
| Yamaha |
FT50 |
50 |
4-Stroke |
2003-2007 |
61S |
| Yamaha |
F50 |
50 |
4-Stroke |
1995-2007 |
62Y |
| Yamaha |
FT50/T50 |
50 |
4-Stroke |
1996-2002 |
64J |
| Yamaha |
FT60/T60 |
60 |
4-Stroke |
2003-2006 |
68S |
| Yamaha |
F60 |
60 |
4-Stroke |
2002-2007 |
69W |
| Mercury/Mariner |
40hp 4-cyl |
40 |
4-Stroke |
— |
Serial numbers: 0G231123 > 0P094499 (equipped with belt tensioner) |
| Mercury/Mariner |
50hp 4-cyl |
50 |
4-Stroke |
— |
Serial numbers: 0G231123 > 0P094499 (equipped with belt tensioner) |
Technical Specifications
| Specification |
Value |
| OEM Number |
62Y-46241-00 |
| Part Type |
Timing Belt (Cambelt) |
| Application |
Yamaha & Mercury 4-Stroke Outboards |
| Replacement Interval |
Every 1000 hours or 5 years |
Package Contents
Installation Guide
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Disconnect the battery and ensure the engine is cool before beginning work.
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Remove the engine cowling to access the timing belt cover. Refer to your service manual for specific fastener locations.
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Rotate the crankshaft to align the timing marks on the camshaft and crankshaft sprockets to top dead center (TDC).
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Release the belt tensioner and carefully remove the old timing belt. Inspect the tensioner and sprockets for wear.
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Install the new timing belt onto the crankshaft sprocket first, then loop it around the camshaft sprocket(s) and tensioner, following the OEM routing diagram.
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Re-engage the belt tensioner to apply proper tension. Verify all timing marks remain aligned.
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Rotate the crankshaft by hand two full revolutions and recheck timing marks to confirm correct installation.
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Reinstall the timing belt cover and engine cowling. Reconnect the battery and perform a test run to ensure smooth operation.
Troubleshooting & FAQ
Q: How do I confirm this timing belt fits my engine?
A: Cross-reference your engine model and serial number with the compatibility table above. Yamaha models F40/F50/F60/FT50/FT60/T50/T60 from 1995–2010 and Mercury 40/50hp 4-cyl engines (serial 0G231123–0P094499 with belt tensioner) are confirmed fits. Always verify your OEM part number matches 62Y-46241-00 or Mercury 825109.
Q: How often should I replace the timing belt?
A: Yamaha recommends replacement every 1000 operating hours or 5 years, whichever comes first. Failure to replace on schedule may result in engine damage or poor performance.
Q: What are the signs that my timing belt needs replacement?
A: Visible cracking, fraying, or glazing on the belt surface, unusual engine noise, rough idling, or difficulty starting. If you notice any of these symptoms, inspect and replace the belt immediately.
Q: Will this aftermarket belt perform the same as the OEM Yamaha part?
A: Yes. This belt is manufactured to OEM specifications using comparable-grade materials in an ISO9002-certified facility. It is designed to deliver the same durability and performance as the original Yamaha timing belt.
Q: Can I install this timing belt myself?
A: Installation requires mechanical knowledge, proper tools, and alignment of timing marks. If you are not experienced with timing belt replacement, professional installation is strongly recommended to avoid engine damage.
Q: What's the difference between OEM and aftermarket timing belts?
A: 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.
Q: How fast do you ship and how much does it cost?
A: 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.
Q: What is your warranty and return policy?
A: 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.