PULSER COIL KX/LT/RM/YFB, 21-502

This pulser coil is an ignition component for the Yamaha ATVs listed below. It produces a timing pulse that the ignition system uses to trigger the spark.

Cross-Reference OEM Part Numbers

• Reference numbers: 21-502; 44-421

Vehicle Fitments

• Yamaha YFM250 Bear Tracker: 1999–2002


• Yamaha YFB250FW Timberwolf 4x4: 1994–2000


• Yamaha YFM400F Kodiak 4x4: 1993–1995


• Yamaha YFM350X Warrior: 1992–1995


• Yamaha YFM350ER Moto-4: 1992–1995


• Yamaha YFB250 Timberwolf 2x4: 1992–1993