ProTaper 13-Tooth Yamaha Front Sprocket 038381

Race Spec (RS) Front Sprockets are CNC machined and internally broached to precise tolerances from case-hardened, core-refined chromoly steel. Computer engineering ensures precise fitment, optimal weight savings and perfect balance. The result is minimal chain drag, maximum horsepower, and uncompromising strength. A proprietary coating further reduces wear and corrosion, yielding a front sprocket unparalleled in the market

• Specially formulated coating retains strength and wear-resistance
• Internal broaching and precision machined to exact tolerances
• Core refined 655M13 nickel-chrome-molybdenum alloy steel
• Self-cleaning mud grooves prevent dirt build up
• Lightening holes reduce rotating weight

The ProTaper 13-Tooth Yamaha Front Sprocket is designed for precise fitment on select Yamaha YZ85 motorcycles from 2003 through 2012. Its Race Spec (RS) construction uses CNC machining and internal broaching to achieve exact tolerances, helping support smooth chain engagement, reduced chain drag and balanced performance.

Manufactured from case-hardened, core-refined 655M13 nickel-chrome-molybdenum alloy steel, this front sprocket combines strength with reduced rotating weight. A specially formulated coating helps retain wear resistance and strength while reducing corrosion. Lightening holes further reduce rotating weight, and self-cleaning mud grooves help prevent dirt buildup during riding.

Manufacturer part number: 038381. Vendor part number: 606399. Fitment includes 2003, 2004, 2005, 2006, 2007, 2008, 2009, 2010, 2011 and 2012 Yamaha YZ85 models.

Features:

• 13-tooth front sprocket for select Yamaha YZ85 models
• CNC machined and internally broached to precise tolerances
• Constructed from case-hardened, core-refined 655M13 nickel-chrome-molybdenum alloy steel
• Specially formulated coating helps retain strength and wear resistance while reducing corrosion
• Self-cleaning mud grooves help prevent dirt buildup
• Lightening holes reduce rotating weight
• Fits 2003–2012 Yamaha YZ85 motorcycles
• Manufacturer part number: 038381
• Vendor part number: 606399

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:
2002 Yamaha YZ85 Base
2003 Yamaha YZ85 Base
2004 Yamaha YZ85 Base
2005 Yamaha YZ85 Base
2006 Yamaha YZ85 Base
2007 Yamaha YZ85 Base
2008 Yamaha YZ85 Base
2009 Yamaha YZ85 Base
2010 Yamaha YZ85 Base
2011 Yamaha YZ85 Base
2012 Yamaha YZ85 Base
2013 Yamaha YZ85 Base
2014 Yamaha YZ85 Base
2015 Yamaha YZ85 Base
2016 Yamaha YZ85 Base
2017 Yamaha YZ85 Base
2018 Yamaha YZ85 Base
2019 Yamaha YZ85 Base
2020 Yamaha YZ85 Base
2021 Yamaha YZ85 Base
2022 Yamaha YZ85 Base
2023 Yamaha YZ85 Base
2023 Yamaha YZ85 LW Base
2024 Yamaha YZ85 Base
2024 Yamaha YZ85 LW Base
2025 Yamaha YZ85 Base
2025 Yamaha YZ85 LW Base
2026 Yamaha YZ85 Base
2026 Yamaha YZ85 LW Base