Manufacturer Part#5GH-83973-01-00,Replacement Part# 5GH-83973-00-00 Fitment:Fit for Yamaha ATV ▶ Big Bear 400 YFM400 2000-2001 ▶ Grizzly 400 YFM400 2000 ▶ Kodiak 400 YFM400 2000-2001 Function: 1. switch engine run off,2.switch headlight hi lo off, 3.switch engine start 4.switch choke lever Easy install, same as OEM connector, plug and play. Service:If there is any product problem within 1 year, please contact us to solve it for you.We provide product service. Manufacturer Part# 5GH-83973-01-00 Replacement Part# 5GH-83973-00-00The Handlebar Switch fit for Yamaha ATV vehicles as follows: ▶Big Bear 400 YFM400 2000-20012000 BIG BEAR 400 2WD - YFM400M2000 BIG BEAR 400 2WD - YFM400MC2000 BIG BEAR 400 4WD - YFM400FM2000 BIG BEAR 400 4WD - YFM400FMC2000 BIG BEAR 400 BUCKMASTER - YFM400FHM2001 BIG BEAR 400 4WD - YFM40FN▶Grizzly 400 YFM400 2000 ▶Kodiak 400 YFM400 2000-20012000 KODIAK 400 2WD - YFM400AM2000 KODIAK 400 2WD - YFM400AMC2000 KODIAK 400 4WD - YFM400FAM2000 KODIAK 400 4WD - YFM400FAMC2001 KODIAK 400 2WD - YFM400AN2001 KODIAK 400 4WD_HUNTER - YFM400FAHN2001 KODIAK 400 4WD_HUNTER - YFM400FAN