Truck Box for 2026 GMC Sierra 1500
No.
Part # / Description / Price
Price
2
Driver Side Truck Bed Panel 
GM
GM Positions: Left
Notes: PARTS: Part included with box assembly.
Description: 6.6 ft box. Side panel. Made of durable material
Defines the inner and outer side of the truck's bed, creating a cargo area
This GM Genuine Part is designed, engineered, and tested to rigorous standards and is backed by General Motors
.
Collision parts are designed to help promote proper and safe repair
MSRP $1,139.82
$748.44
MSRP $1,139.82
$748.44
2
Passenger Side Pickup Box Outer Panel GM
GM Positions: Right
Notes: PARTS: Part included with box assembly.
Description: 6.6 ft box. Side panel. Made of durable material
Defines the inner and outer side of the truck's bed, creating a cargo area
This GM Genuine Part is designed, engineered, and tested to rigorous standards and is backed by General Motors
.
Collision parts are designed to help promote proper and safe repair
MSRP $1,139.82
$748.44
MSRP $1,139.82
$748.44
2
Passenger Side Pickup Box Outer Panel GM
GM Positions: Rear right
Description: 8 ft box. Made of durable material
Defines the inner and outer side of the truck's bed, creating a cargo area
This GM Genuine Part is designed, engineered, and tested to rigorous standards and is backed by General Motors
.
Collision parts are designed to help promote proper and safe repair
MSRP $1,139.82
$748.44
MSRP $1,139.82
$748.44
2
$910.71
3
Driver Side Pickup Box Outer Side Panel GM
GM Positions: Left
Notes: PARTS: Part included with side panel.
Description: 6.6 ft box. Outer panel. Made of durable material
Defines the inner and outer side of the truck's bed, creating a cargo area
This GM Genuine Part is designed, engineered, and tested to rigorous standards and is backed by General Motors
.
Collision parts are designed to help promote proper and safe repair
MSRP $1,276.47
$838.17
MSRP $1,276.47
$838.17
3
Passenger Side Pickup Box Outer Side Panel GM
GM Positions: Right
Notes: PARTS: Part included with side panel.
Description: 6.6 ft box. Outer panel. Made of durable material
Defines the inner and outer side of the truck's bed, creating a cargo area
This GM Genuine Part is designed, engineered, and tested to rigorous standards and is backed by General Motors
.
Collision parts are designed to help promote proper and safe repair
MSRP $1,276.47
$838.17
MSRP $1,276.47
$838.17
3
Outer Panel GM
GM Positions: Rear left outer
Description: Without carbon composite box.
MSRP $1,276.47
$838.17
MSRP $1,276.47
$838.17
3
Outer Panel GM
GM Positions: Rear right outer
Description: Without carbon composite box.
MSRP $1,276.47
$838.17
MSRP $1,276.47
$838.17
3
Driver Side Pickup Box Outer Side Panel GM
GM Positions: Rear left outer
Description: 8 ft box. Made of durable material
Defines the inner and outer side of the truck's bed, creating a cargo area
This GM Genuine Part is designed, engineered, and tested to rigorous standards and is backed by General Motors
.
Collision parts are designed to help promote proper and safe repair
MSRP $1,257.62
$825.78
MSRP $1,257.62
$825.78
3
Passenger Side Pickup Box Outer Side Panel GM
GM Positions: Rear right outer
Description: 8 ft box. Made of durable material
Defines the inner and outer side of the truck's bed, creating a cargo area
This GM Genuine Part is designed, engineered, and tested to rigorous standards and is backed by General Motors
.
Collision parts are designed to help promote proper and safe repair
MSRP $1,257.62
$825.78
MSRP $1,257.62
$825.78
4
Anchor Plate GM
GM Positions: Right
Notes: PARTS: Part included with side panel.
Description: Without carbon composite box. 6.9 ft box. 8 ft box, dual rear wheels. 8 ft box, single rear wheels. Colorado, side panel. Canyon, side panel. Pickup.
MSRP $20.43
$14.77
MSRP $20.43
$14.77
5
Driver Side Pickup Box Rear Stake Pocket Bracket GM
GM Positions: Left
Notes: PARTS: Part included with side panel.
Description: 6.9 ft box. 8 ft box, single rear wheels. Helps align and secure truck bed panel
This GM Genuine Part is designed, engineered, and tested to rigorous standards and is backed by General Motors
Collision parts are designed to help promote proper and safe repair
MSRP $20.88
$15.10
MSRP $20.88
$15.10
5
Passenger Side Pickup Box Rear Stake Pocket Bracket GM
GM Positions: Right
Notes: PARTS: Part included with side panel.
Description: 6.9 ft box. 8 ft box, dual rear wheels. 8 ft box, single rear wheels. 5.8 ft box. Helps align and secure truck bed panel
This GM Genuine Part is designed, engineered, and tested to rigorous standards and is backed by General Motors
Collision parts are designed to help promote proper and safe repair
MSRP $20.88
$15.10
MSRP $20.88
$15.10
6
Upper Bracket GM
GM Positions: Right
Notes: PARTS: Part included with side panel.
Description: 6.9 ft box. 8 ft box, single rear wheels. With carbon composite box.
$32.28
$32.28
7
Driver Side Truck Bed Panel GM
GM Positions: Left
Notes: PARTS: Part included with side panel.
Description: 6.6 ft box. 5.8 FT BOX. without carbon box. This GM Genuine Part is designed, engineered, and tested to rigorous standards and is backed by General Motors
MSRP $206.72
$136.36
MSRP $206.72
$136.36
7
Passenger Side Truck Bed Panel GM
GM Positions: Right
Notes: PARTS: Part included with side panel.
Description: 6.6 ft box. 5.8 FT BOX. without carbon box. This GM Genuine Part is designed, engineered, and tested to rigorous standards and is backed by General Motors
MSRP $206.72
$136.36
MSRP $206.72
$136.36
9
Driver Side Pickup Box Side Panel Front Filler GM
GM Positions: Left
Notes: PARTS: Part included with side panel.
Description: 6.6 ft box. 5.8 FT BOX. without carbon box. This GM Genuine Part is designed, engineered, and tested to rigorous standards and is backed by General Motors
MSRP $28.85
$20.86
MSRP $28.85
$20.86
9
Truck Bed Panel Reinforcement GM
GM Positions: Right
Notes: PARTS: Part included with side panel.
Description: 5.8 ft box. 6.6 ft box. Without carbon composite box.
MSRP $28.85
$20.86
MSRP $28.85
$20.86
11
Driver Side Truck Bed Wheel Housing Center Panel GM
GM Positions: Left
Notes: PARTS: Part included with side panel.
Description: 5.8 FT BOX. center without carbon box. 6.6 ft box, center. Shields vehicle from airborne debris thrown by the tires
This GM Genuine Part is designed, engineered, and tested to rigorous standards and is backed by General Motors
Collision parts are designed to help promote proper and safe repair
MSRP $130.44
$87.22
MSRP $130.44
$87.22
11
Passenger Side Truck Bed Wheel Housing Center Panel GM
GM Positions: Right
Notes: PARTS: Part included with side panel.
Description: 5.8 FT BOX. center without carbon box. 6.6 ft box, center. Shields vehicle from airborne debris thrown by the tires
This GM Genuine Part is designed, engineered, and tested to rigorous standards and is backed by General Motors
Collision parts are designed to help promote proper and safe repair
MSRP $126.36
$84.49
MSRP $126.36
$84.49
14
Pickup Box Platform Rear Cross Sill GM
GM Notes: PARTS: Part included with box assembly.
Description: 5.8 ft box. 6.6 ft box. Helps secure and strengthen truck bed floor
This GM Genuine Part is designed, engineered, and tested to rigorous standards and is backed by General Motors
.
Collision parts are designed to help promote proper and safe repair
MSRP $231.47
$152.69
MSRP $231.47
$152.69
14
Pickup Box Platform Rear Cross Sill GM
GM Positions: Rear
Description: 8 ft box. Helps secure and strengthen truck bed floor
This GM Genuine Part is designed, engineered, and tested to rigorous standards and is backed by General Motors
.
Collision parts are designed to help promote proper and safe repair
MSRP $185.90
$122.63
MSRP $185.90
$122.63
15
Accessory Power Receptacle without Cover GM
GM Positions: Front
Description: This GM Genuine Part is designed, engineered, and tested to rigorous standards and is backed by General Motors
Original equipment parts are designed to work with your GM vehicle safety systems -- aftermarket replacement parts may not meet the same OE safety regulations, depending on the part type
MSRP $13.05
$9.40
MSRP $13.05
$9.40
15
Blank Cover GM
GM Description: 2022-26 redesign,pro, 120 Volt. 2024-26 wt, custom. 2019-22 2023-26, wt, custom, custom tb.
$29.91
$29.91
15
Jet Black Pickup Box Accessory Power Receptacle GM
GM Description: 8 ft box, dual rear wheels, 110v. 5.8 ft box. 110v. This GM Genuine Part is designed, engineered, and tested to rigorous standards and is backed by General Motors
MSRP $108.36
$72.46
MSRP $108.36
$72.46