Thumb Throttle Assembly Compatible with TRX250R TRX300 TRX350 TRX400EX TRX420 TRX450R

Thumb Throttle Assy compatible with TRX250R, TRX300, TRX350, TRX400EX, TRX420, and TRX450R.Replaces OEM part numbers including 53142-HC0-77 and H53143HM7305.Fits models with 21.5mm throttle tube diameter, including TRX250 1997–2001, TRX250EX/X 2001–2009, TRX250TE/TM 2002–2009, TRX250TE 2011, TRX250X 2009, TRX300/FW 1988–2000 (22.2mm version), TRX300EX/X 2004–2009, TRX350FE/TM 2003–2006, TRX400EX 2003–2004, TRX400FW 2003, TRX420FA/FPA/FPE/FPM 2009–2010, TRX420FE/FM/TE/TM 2007–2010, TRX450R 2004–2005, TRX450S/ES 1998–2001, TRX500FA 2001–2004, TRX500TM 2005–2006, and TRX700XX 2008–2009.Also compatible with various TRX200, TRX250X, TRX300, TRX300FW, TRX350D, TRX400FW, TRX450ES, and TRX500FGA models from 1988 through 2014 for handlebar-mounted thumb throttle assembly replacement.

• Model Compatibility: Fits TRX250R, TRX300, TRX350, TRX400EX, TRX420, and TRX450R models as a direct replacement for the thumb throttle assembly.
• Functionality: Restores throttle control by replicating the form, fit, and function of the factory-installed thumb throttle assembly.
• Installation: Designed to mount in the same location and interface with existing handlebar controls without modification to the vehicle’s throttle system.
• Component Type: Replacement thumb throttle assembly intended solely for use as a functional substitute for the ’s thumb-operated throttle mechanism.
• Application Scope: Intended for the listed ATV models and serves only to reestablish standard throttle actuation as originally configured.