High Quality, select high-quality steel, high strength after heat treatment, CNC machined pinion bearing nut tool, Easy to use, direct installation, precise machining to ensure accuracy. Fit for Honda ATC250 Big Red 1985-1987; TRX250 1985-1987, TRX300 Fourtrax 1988-2000 2x4 & 4x4 (Front and Rear), for TRX350 1986-1989 (front), TRX350 Rancher 2000-2007 (front); 2014-2018 Honda TRX 420 Rancher, for Honda 2015-2016 Honda TRX 500 Rubicon; 2012-2016 Honda TRX 500 Foreman. Replaces for OEM part numbers 07916-MB00001 and 07916-MB00002. Black Oxide Coating for a longer rust-free shelf life. Compatible with Honda： ATC250 Big Red 1985-1987; TRX250 1985-1987 ; TRX300 Fourtrax 1988-2000 2x4 & 4x4 (Front and Rear) TRX350 1986-1989 (front) ; TRX350 Rancher 2000-2007 (front); 2014-2018 Honda TRX 420 Rancher Honda 2015-2016 Honda TRX 500 Rubicon; 2012-2016 Honda TRX 500 Foreman.