Where to buy
Engines using 4021
1Generator sets using 4021
3Waukesha Enginator VGF18GSIDWaukesha VGF36GSIDWaukesha Enginator VGF24GSID
Service part / kit · Jacket water heater. with disconnect relay, wired to AC junction box, 2500 watt, 120 vac, 50/60 hz, 1 ph. Mounted · qty 1 — part number 4021. Used by the engines and generator sets below.