ProTaper 15-Tooth Front Sprocket 038363

Precision-broached and -machined to the strictest standards. Casehardened, chromoly steel. Lightening holes keep sprocket lightweight. Self-cleaning mud grooves prevent dirt build up. Special coating helps retain strength and aids in wear resistance.

• Built from heat-treated, case-hardened steel to handle the demands of high-performance riding
• Trusted by racers and performance riders for its proven strength and reliability
• Precision machined for perfect alignment and smooth, consistent power delivery
• Optimized tooth profile reduces chain wear and maximizes throttle response
• Lightweight design minimizes rotating mass for quicker acceleration

The ProTaper 15-tooth front sprocket is precision-broached and machined from heat-treated, case-hardened chromoly steel for strength and reliable performance in high-performance powersports applications. Lightening holes help reduce rotating mass, while self-cleaning mud grooves help prevent dirt buildup around the sprocket.

A special coating supports wear resistance and helps retain strength. The precision-machined tooth profile is designed for smooth, consistent power delivery, reduced chain wear and responsive acceleration.

This front sprocket fits 2001–2005 Yamaha YFM660R Raptor models and 2004–2008 Yamaha YFZ450 models. Manufacturer part number: 038363. Vendor part number: 038363.

Features:

• 15-tooth front sprocket designed for powersports applications
• Heat-treated, case-hardened chromoly steel construction
• Precision-broached and machined for accurate alignment
• Lightening holes help minimize rotating mass
• Self-cleaning mud grooves help prevent dirt buildup
• Special coating supports strength retention and wear resistance
• Optimized tooth profile helps reduce chain wear and support responsive power delivery
• Fits 2001–2005 Yamaha YFM660R Raptor models
• Fits 2004–2008 Yamaha YFZ450 models

Air Freight Prohibited: false
Not Carb Approved: false
Ltl Freight Required: false
Prop 65: Unknown
Part Type: powersports
Epa: N/A
Carb Acknowledgement Required: false
Regular Stock: t
Units Per Sku: 1
Fitment:
1998 Yamaha WR400F Base
1998 Yamaha YZ400F Base
1999 Kawasaki KX250 Base
1999 Yamaha WR400F Base
1999 Yamaha YZ400F Base
2000 Kawasaki KX250 Base
2000 Yamaha WR400F Base
2000 Yamaha YZ250 Base
2000 Yamaha YZ426F Base
2001 Kawasaki KX250 Base
2001 Yamaha WR426F Base
2001 Yamaha YFM660R Raptor Base
2001 Yamaha YZ250 Base
2001 Yamaha YZ426F Base
2002 Kawasaki KX250 Base
2002 Yamaha WR426F Base
2002 Yamaha YFM660R Raptor Base
2002 Yamaha YZ250 Base
2002 Yamaha YZ426F Base
2003 Kawasaki KLX300R Base
2003 Kawasaki KX250 Base
2003 Yamaha WR450F Base
2003 Yamaha YFM660R Raptor Base
2003 Yamaha YZ250 Base
2003 Yamaha YZ450F Base
2004 Kawasaki KLX300R Base
2004 Kawasaki KX250 Base
2004 Yamaha WR450F Base
2004 Yamaha YFM660R Raptor Base
2004 Yamaha YFZ450 Base
2004 Yamaha YZ250 Base
2004 Yamaha YZ450F Base
2005 Kawasaki KLX300R Base
2005 Kawasaki KX250 Base
2005 Yamaha WR450F Base
2005 Yamaha YFM660R Raptor Base
2005 Yamaha YFZ450 Base
2005 Yamaha YZ250 Base
2005 Yamaha YZ450F Base
2006 Kawasaki KLX300R Base
2006 Kawasaki KX250 Base
2006 Yamaha WR450F Base
2006 Yamaha YFZ450 Base
2006 Yamaha YZ250 Base
2006 Yamaha YZ450F Base
2007 Kawasaki KLE650 Versys Base
2007 Kawasaki KLX300R Base
2007 Kawasaki KX250 Base
2007 Yamaha WR450F Base
2007 Yamaha YFZ450 Base
2007 Yamaha YZ250 Base
2007 Yamaha YZ450F Base
2008 Kawasaki KLE650 Versys Base
2008 Yamaha WR450F Base
2008 Yamaha YFZ450 Base
2008 Yamaha YZ250 Base
2008 Yamaha YZ450F Base
2009 Kawasaki KLE650 Versys Base
2009 Yamaha WR450F Base
2009 Yamaha YFZ450 Base
2009 Yamaha YZ250 Base
2009 Yamaha YZ450F Base
2010 Kawasaki KLE650 Versys Base
2010 Yamaha YZ250 Base
2010 Yamaha YZ450F Base
2011 Kawasaki KLE650 Versys Base
2011 Yamaha WR450F Base
2011 Yamaha YZ250 Base
2011 Yamaha YZ450F Base
2012 Kawasaki KLE650 Versys Base
2012 Yamaha WR450F Base
2012 Yamaha YFZ450 Base
2012 Yamaha YZ250 Base
2012 Yamaha YZ450F Base
2013 Kawasaki KLE650 Versys Base
2013 Yamaha WR450F Base
2013 Yamaha YFZ450 Base
2013 Yamaha YZ250 Base
2013 Yamaha YZ450F Base
2014 Kawasaki KLE650 Versys Base
2014 Yamaha WR450F Base
2014 Yamaha YZ250 Base
2014 Yamaha YZ450F Base
2015 Kawasaki KLE650 Versys Base
2015 Kawasaki KLE650 Versys ABS Base
2015 Yamaha WR450F Base
2015 Yamaha YZ250 Base
2015 Yamaha YZ450F Base
2016 Kawasaki KLE650 Versys Base
2016 Kawasaki KLE650 Versys ABS Base
2016 Yamaha WR450F Base
2016 Yamaha YZ250 Base
2016 Yamaha YZ250X Base
2016 Yamaha YZ450F Base
2016 Yamaha YZ450FX Base
2017 Kawasaki EN650 Vulcan S Base
2017 Kawasaki KLE650 Versys Base
2017 Kawasaki KLE650 Versys ABS Base
2017 Yamaha WR450F Base
2017 Yamaha YZ250 Base
2017 Yamaha YZ250X Base
2017 Yamaha YZ450F Base
2017 Yamaha YZ450FX Base
2018 Kawasaki EN650 Vulcan S Base
2018 Kawasaki KLE650 Versys Base
2018 Kawasaki KLE650 Versys ABS Base
2018 Yamaha WR450F Base
2018 Yamaha YZ250 Base
2018 Yamaha YZ250X Base
2018 Yamaha YZ450F Base
2018 Yamaha YZ450FX Base
2019 Kawasaki EN650 Vulcan S Base
2019 Kawasaki KLE650 Versys Base
2019 Kawasaki KLE650 Versys ABS Base
2019 Yamaha WR450F Base
2019 Yamaha YZ250 Base
2019 Yamaha YZ250X Base
2019 Yamaha YZ450F Base
2019 Yamaha YZ450FX Base
2020 Kawasaki EN650 Vulcan S Base
2020 Kawasaki KLE650 Versys Base
2020 Kawasaki KLE650 Versys ABS Base
2020 Yamaha WR450F Base
2020 Yamaha YZ250 Base
2020 Yamaha YZ250X Base
2020 Yamaha YZ450F Base
2020 Yamaha YZ450FX Base
2021 Kawasaki EN650 Vulcan S Base
2021 Kawasaki KLE650 Versys ABS Base
2021 Yamaha WR450F Base
2021 Yamaha YZ250 Base
2021 Yamaha YZ250X Base
2021 Yamaha YZ450F Base
2021 Yamaha YZ450F Monster Energy Yamaha Racing Edition Base
2021 Yamaha YZ450FX Base
2022 Kawasaki EN650 Vulcan S Base
2022 Kawasaki KLE650 Versys ABS Base
2022 Yamaha WR450F Base
2022 Yamaha YZ250 Base
2022 Yamaha YZ250 Monster Energy Yamaha Racing Edition Base
2022 Yamaha YZ250X Base
2022 Yamaha YZ450F Base
2022 Yamaha YZ450F Monster Energy Yamaha Racing Edition Base
2022 Yamaha YZ450FX Base
2023 Kawasaki EN650 Vulcan S Base
2023 Yamaha WR450F Base
2023 Yamaha YZ250 Base
2023 Yamaha YZ250 Monster Energy Yamaha Racing Edition Base
2023 Yamaha YZ250X Base
2023 Yamaha YZ450F Base
2023 Yamaha YZ450F Monster Energy Yamaha Racing Edition Base
2023 Yamaha YZ450FX Base
2024 Kawasaki EN650 Vulcan S Base
2024 Yamaha WR450F Base
2024 Yamaha YZ250 Base
2024 Yamaha YZ250 50th Anniversary Edition Base
2024 Yamaha YZ250X Base
2024 Yamaha YZ450F Base
2024 Yamaha YZ450F 50th Anniversary Edition Base
2024 Yamaha YZ450FX Base
2025 Kawasaki EN650 Vulcan S Base
2025 Kawasaki EX650 Ninja 650 Base
2025 Yamaha WR450F Base
2025 Yamaha YZ250 Base
2025 Yamaha YZ250 Monster Energy Yamaha Racing Edition Base
2025 Yamaha YZ250X Base
2025 Yamaha YZ450F Base
2025 Yamaha YZ450F Monster Energy Yamaha Racing Edition Base
2025 Yamaha YZ450FX Base
2026 Yamaha YZ250 Base
2026 Yamaha YZ250 70th Anniversary Edition Base
2026 Yamaha YZ250X Base
2026 Yamaha YZ450F Base
2026 Yamaha YZ450F 70th Anniversary Edition Base
2026 Yamaha YZ450FX Base