Whipple Dual Alternator / Power On Board kit for '21+ F-150

Converts Whipple kits without the “D” at the end of the PN to the version with the “D”, example: WK-2317-STG2-30 to WK-2317-STG2-30D

Dual alternator kits come with the extra parts required to install a Whipple kit on a dual alternator truck: water neck, heater tube and upper radiator hose.