Part #(s): 12621644 ; 12641640 FITS THE FOLLOWING MAKES / MODELS:
EXPRESS 2500 VAN 10 6.6L, VIN L (8th digit, opt LGH)
EXPRESS 2500 VAN 11-16 6.6L, upper
EXPRESS 3500 VAN 10 6.6L, VIN L (8th digit, opt LGH)
EXPRESS 3500 VAN 11-16 6.6L
SAVANA 2500 VAN 10 6.6L, VIN L (8th digit, opt LGH)
SAVANA 2500 VAN 11-16 6.6L
SAVANA 3500 VAN 10 6.6L, VIN L (8th digit, opt LGH)
SAVANA 3500 VAN 11-16 6.6L
SIERRA 2500 PICKUP 11-16 6.6L
SIERRA 3500 PICKUP 11-16 6.6L
SIERRA DENALI 2500 11-16 6.6L
SIERRA DENALI 3500 11-16 6.6L
SILVERADO 2500 PICKUP 11-16 6.6L
SILVERADO 3500 PICKUP 11-16 6.6L