If you have a 4301, 4302, 4303, 4309, 4316, 4330, 4331, 4333, 4333, 4370, 4371, 4372, 4373, 4374, 4381, 4392 then your Kit Part Number is MK431 which contains:

• M3081   Contact Point Kit  ($75)
• K3215   Carbon Brush
• K3984   Capacitor Kit  ($200)
• M917   IC Spring
• M3827   4 Cyl Rotor Gear ($400)
• M2556   Cotter Pin

Thanks to Rex Niver for this information.

Aircraft Spruce #08-15951 (without magneto base gasket)

CHAMPION 500 HOUR INSPECTION KIT MK431  $318.00