XT5 17-19 (3.6L, VIN S, 8th digit, opt LGX). XT5 20 3.6L, (VIN S, 8th digit, opt LGX), w/o heavy duty cooling. XT5 21-24 3.6L (VIN S, 8th digit, opt LGX), w/o heavy duty cooling. ACADIA 17 VIN Z (11th digit), 3.6L, (VIN S, 8th digit, opt LGX), w/o heavy duty cooling.
