Rear Floor & Rails for 2025 GMC Yukon XL
No.
Part # / Description / Price
Price
2
Rear Driver Side Floor Panel Filler 
GM
GM Positions: Left
Description: Helps define the appearance of your vehicle's rear body 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 $59.59
$41.82
MSRP $59.59
$41.82
3
Underbody Rear Cross Sill GM
GM Description: Helps support and strengthen your vehicle's floor 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 $60.08
$42.16
MSRP $60.08
$42.16
4
Underbody Rear Cross Sill GM
GM Description: Helps support and strengthen your vehicle's floor 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 $52.41
$36.78
MSRP $52.41
$36.78
5
Driver Side Underbody Rear Side Rail Outrigger GM
GM Positions: Left
Description: This GM Genuine Part is designed, engineered, and tested to rigorous standards and is backed by General Motors
MSRP $31.16
$22.34
MSRP $31.16
$22.34
5
Passenger Side Underbody Rear Side Rail Outrigger GM
GM Positions: Right
Description: This GM Genuine Part is designed, engineered, and tested to rigorous standards and is backed by General Motors
MSRP $31.16
$22.34
MSRP $31.16
$22.34
6
Rear Compartment Floor Panel Rear Rail GM
GM Description: Helps strengthen and support your vehicle's underbody
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
$36.08
$36.08
7
Driver Side Underbody Rear Side Rail GM
GM Positions: Left
Description: Helps strengthen and support your vehicle's underbody
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 $68.74
$48.24
MSRP $68.74
$48.24
7
Passenger Side Underbody Rear Side Rail GM
GM Positions: Right
Description: Helps strengthen and support your vehicle's underbody
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 $140.15
$96.67
MSRP $140.15
$96.67
8
Driver Side Underbody Rear Side Rail Extension GM
GM Positions: Left
Notes: PARTS: Part included with lower rail.
Description: This GM Genuine Part is designed, engineered, and tested to rigorous standards and is backed by General Motors
MSRP $20.37
$14.60
MSRP $20.37
$14.60
8
Passenger Side Underbody Rear Side Rail Extension GM
GM Positions: Right
Notes: PARTS: Part included with lower rail.
Description: This GM Genuine Part is designed, engineered, and tested to rigorous standards and is backed by General Motors
MSRP $20.37
$14.60
MSRP $20.37
$14.60
9
Underbody Number 5 Cross Sill Reinforcement GM
GM Description: This GM Genuine Part is designed, engineered, and tested to rigorous standards and is backed by General Motors
MSRP $30.68
$21.99
MSRP $30.68
$21.99
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