Quick answer
Most Sierra 1500 owners start with floor liners, a tonneau cover and side steps, then add a leveling kit and shocks, a toolbox and an exhaust. The Sierra 1500 shares its platform with the Chevy Silverado 1500, so many bed, cab and suspension parts are shared, but front-end parts are usually GMC-specific.
Know your Sierra 1500
- Model year: parts change between generations and refreshes, so shop by your exact year.
- Cab: Regular Cab, Double Cab or Crew Cab.
- Bed length: covers, bed mats and toolboxes are matched to bed length.
- Trim: AT4 and AT4X off-road trims and some upper trims with adaptive or air suspension can need different suspension parts; check each kit's fitment.
Select your Sierra in the vehicle bar, or start at all GMC Sierra 1500 parts.
1. Tonneau cover
Shop Sierra 1500 tonneau covers by bed length. Not sure which style? Read tonneau cover vs truck cap.
2. Floor liners
Shop Sierra 1500 floor liners; front and rear fit depends on cab and seating.
3. Running boards and side steps
Shop Sierra 1500 steps by cab style.
4. Leveling kits, lifts and shocks
Shop Sierra 1500 lift and leveling kits and Sierra 1500 shocks. Read leveling kit vs lift kit.
5. Bed, exhaust and brakes
Also see our Silverado 1500 guide and Sierra HD guide.
Not sure what fits? Contact us with your year, cab and bed and we'll help confirm fitment before you order. More guides: Truck Buying Guides.
Frequently asked questions
Do Silverado 1500 parts fit a Sierra 1500?
Many bed, cab, interior and suspension parts are shared, but grilles, bumpers, headlights and some trim parts differ. Check each product's fitment for the Sierra.
Can I level a Sierra 1500 with air suspension?
Standard spacer kits are made for trucks with conventional suspension. Trucks with air or adaptive suspension need parts made for that setup; check the kit's fitment.