GMC Sierra HD Seating Capacity Explained


2018 Sierra HD Crew Cab Long Box | 2018 - to present

Start of Production Seats Body Type Doors Body Width
2018 Sierra HD Crew Cab Long Box | 2018 - to present 2018 year 5 Pick-up Truck 4 -

2018 Sierra HD Crew Cab Standard Box | 2018 - to present

Start of Production Seats Body Type Doors Body Width
2018 Sierra HD Crew Cab Standard Box | 2018 - to present 2018 year 5 Pick-up Truck 4 -

2018 Sierra HD Double Cab Long Box | 2018 - to present

Start of Production Seats Body Type Doors Body Width
2018 Sierra HD Double Cab Long Box | 2018 - to present 2018 year 5 Pick-up Truck 4 -

2018 Sierra HD Double Cab Standard Box | 2018 - to present

Start of Production Seats Body Type Doors Body Width
2018 Sierra HD Double Cab Standard Box | 2018 - to present 2018 year 5 Pick-up Truck 4 -

2018 Sierra HD Regular Cab Long Box | 2018 - to present

Start of Production Seats Body Type Doors Body Width
2018 Sierra HD Regular Cab Long Box | 2018 - to present 2018 year 5 Pick-up Truck 4 -
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