Genuine GM Step Rails

Driving a truck or an SUV? There's a good chance it came from the GM factory with step rails. You might also call them side rails. Less often, you might even hear them referred to as running boards. Even the sports car community has their own naming conventions. They call them nerf bars, a term taken from "nerfing," which means bumping into another racer. Many names notwithstanding, what step rails do is provide better surfaces than bare door sills for getting into and out of your vehicle.

Update your SUV or Pickup with Genuine GM Step Rails

If you know the real deal, you probably already know how they mount: just inches from a door sill. Install them lower than that, and entry and exit get even easier. Doing that is especially helpful if you're driving a lifted vehicle. Running boards are slightly different. They mount closer to your ride's rocker panels, if not flush with them. That gives any vehicle even better ground clearance than step rails do. Running boards also usually have flatter and wider profiles, and their treads usually run the length of the boards. Whatever kind you need for your replacement or upgrade project, we've got the best solutions: genuine step rails straight from your OEM. Save time by buying them online today, right here at our auto parts counter.

42385205 - : Passenger Side Roof Inner Side Rail for GM Image

Passenger Side Roof Inner Side Rail

Mexico built. With sunroof. Mexcio built. Provides an attachment point for components to secure cargo to your vehicle's roof This GM...
$35.87
MSRP $54.55
Save $18.68
34.2% Off
60004655 - : Passenger Side Underbody Rear Side Rail for GM Image

Passenger Side Underbody Rear Side Rail

Awd. Helps strengthen and support your vehicle's underbody This GM Genuine Part is designed, engineered, and tested to rigorous...
$79.60
MSRP $120.95
Save $41.35
34.2% Off
26213846 - : Passenger Side Roof Outer Side Rail for GM Image

Passenger Side Roof Outer Side Rail

Without sunroof. Provides an attachment point for components to secure cargo to your vehicle's roof This GM Genuine Part is designed,...
$65.24
MSRP $99.14
Save $33.90
34.2% Off
84081179 - : Driver Side Underbody Side Rail Extension for GM Image

Driver Side Underbody Side Rail Extension

This GM Genuine Part is designed, engineered, and tested to rigorous standards and is backed by General Motors
$70.02
MSRP $106.39
Save $36.37
34.2% Off
84218440 - : Passenger Side Underbody Rear Side Rail for GM Image

Passenger Side Underbody Rear Side Rail

Sportback, 4-link suspension. Helps strengthen and support your vehicle's underbody This GM Genuine Part is designed, engineered, and...
$238.99
84097767 - : Passenger Side Front Top Side Rail for GM Image

Passenger Side Front Top Side Rail

Provides an attachment point for components to secure cargo to your vehicle's roof This GM Genuine Part is designed, engineered, and...
$603.69
MSRP $906.91
Save $303.22
33.4% Off
84686613 - : Driver Side Roof Inner Side Rail for GM Image

Driver Side Roof Inner Side Rail

Provides an attachment point for components to secure cargo to your vehicle's roof This GM Genuine Part is designed, engineered, and...
$69.01
MSRP $104.86
Save $35.85
34.2% Off
95298021 - : Driver Side Roof Outer Side Rail for GM Image

Driver Side Roof Outer Side Rail

Provides an attachment point for components to secure cargo to your vehicle's roof This GM Genuine Part is designed, engineered, and...
$43.16
MSRP $65.64
Save $22.48
34.2% Off
84508250 - : Driver Side Underbody Side Rail Extension for GM Image

Driver Side Underbody Side Rail Extension

Coupe, lower rails. This GM Genuine Part is designed, engineered, and tested to rigorous standards and is backed by General Motors
$37.57
MSRP $57.14
Save $19.57
34.2% Off
25794204 - : Passenger Side Roof Side Rail Reinforcement for GM Image

Passenger Side Roof Side Rail Reinforcement

To 3/4/10. Helps secure and support your vehicle's roof side rail This GM Genuine Part is designed, engineered, and tested to rigorous...
$71.08
MSRP $108.00
Save $36.92
34.2% Off
84242580 - : Passenger Side Underbody Rear Side Rail for GM Image

Passenger Side Underbody Rear Side Rail

Helps strengthen and support your vehicle's underbody This GM Genuine Part is designed, engineered, and tested to rigorous standards...
$575.64
MSRP $864.76
Save $289.12
33.4% Off
84284582 - : Passenger Side Underbody Rear Side Rail for GM Image

Passenger Side Underbody Rear Side Rail

Sportback, 5-link suspension. Tourx. Helps strengthen and support your vehicle's underbody This GM Genuine Part is designed,...
$333.95

No results found for "step rails:, side rails". Here are some helpful search tips:

  • Search by a part name. Example: water pump.
  • Be less specific. Example: brake instead of ceramic brake.
  • Remove information such as make, year or model.
  • Can't find the part you are looking for? Contact us and we'll find it for you!