Dark Gray is recommended for Work Truck (WT) models.
Fits "New Body Style" only. To confirm fitment, measure back door - should be approx. 42" wide.
Fits "New Body Style" only. To confirm fitment, measure back door - should be approx. 42" wide.
Dark Gray is recommended for Work Truck (WT) models.
Dark Gray is recommended for Work Truck (WT) models.
Browse our selection of quality underseat storage box parts designed specifically for your GMC Sierra. We carry options across multiple trim levels, body styles, and engine configurations to ensure a perfect fit.
AT4 · AT4 CarbonPro · All Terrain · Base · Denali · Regular · SLE · SLT
Crew Cab Pickup · Standard Cab Pickup
V8 5.3L · V8 6.2L
Automatic
