Automatic Transmission 126,665mi from 2013 Sierra Denali 2500 6.6L 4×4 11702796
SIERRA DENALI 2500 13 AT; 6.6L, 4×4. SIERRA DENALI 3500 13 AT; 6.6L, 4×4. SIERRA 2500 PICKUP 13 AT; 6.6L, 4×4. SIERRA 3500 PICKUP 13 AT; 6.6L, 4×4, w/o power take off. SILVERADO 2500 PICKUP 13 AT; 6.6L, 4×4.