GmcSierra 1500 Sierra 1500 AT4 4WD Crew Cab Short Bed TK10543 4SB LZ0 MQC MY2025 US2025
Coolant capacity
18.4 L (19.4 US qt), approximately, for the entire engine cooling system (pickup)
Duramax supplement pickup row; total engine cooling system and components. The SUV row and the separate charge-air cooling system are excluded.