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.

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Passenger Side Front Compartment Upper Side Rail

This GM Genuine Part is designed, engineered, and tested to rigorous standards and is backed by General Motors
$335.85
MSRP $484.79
Save $148.94
30.7% Off
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Passenger Side Underbody Rear Side Rail Reinforcement

Helps secure and support your vehicle's underbody rail This GM Genuine Part is designed, engineered, and tested to rigorous standards...
$12.12
MSRP $17.50
Save $5.38
30.7% Off
42554488 - : Driver Side Front Compartment Upper Side Rail for GM Image

Driver Side Front Compartment Upper Side Rail

This GM Genuine Part is designed, engineered, and tested to rigorous standards and is backed by General Motors
$323.75
MSRP $467.32
Save $143.57
30.7% Off
39098471 - : Passenger Side Roof Side Rail Outer Extension for GM Image

Passenger Side Roof Side Rail Outer Extension

Sportback. Provides an attachment point for components to secure cargo to your vehicle's roof This GM Genuine Part is designed,...
$9.65
84607894 - : Passenger Side Front Compartment Upper Side Rail for GM Image

Passenger Side Front Compartment Upper Side Rail

This GM Genuine Part is designed, engineered, and tested to rigorous standards and is backed by General Motors
$420.90
MSRP $607.56
Save $186.66
30.7% Off
23145233 - : Passenger Side Roof Side Rail Center Bracket for GM Image

Passenger Side Roof Side Rail Center Bracket

Extended cab side & rear panels. Helps align and secure your vehicle's roof side rail This GM Genuine Part is designed, engineered, and...
$15.66
MSRP $22.61
Save $6.95
30.7% Off
84595924 - : Driver Side Front Compartment Upper Side Rail for GM Image

Driver Side Front Compartment Upper Side Rail

This GM Genuine Part is designed, engineered, and tested to rigorous standards and is backed by General Motors
$234.68
MSRP $338.76
Save $104.08
30.7% Off
95368734 - : Driver Side Underbody Rear Side Rail Extension for GM Image

Driver Side Underbody Rear Side Rail Extension

This GM Genuine Part is designed, engineered, and tested to rigorous standards and is backed by General Motors
$75.66
MSRP $104.66
Save $29.00
27.7% Off
23255644 - : Passenger Side Engine Compartment Side Rail Bracket for GM Image

Passenger Side Engine Compartment Side Rail Bracket

Front. This GM Genuine Part is designed, engineered, and tested to rigorous standards and is backed by General Motors
$16.77
MSRP $24.20
Save $7.43
30.7% Off
84393440 - : Passenger Side Front Compartment Upper Side Rail for GM Image

Passenger Side Front Compartment Upper Side Rail

This GM Genuine Part is designed, engineered, and tested to rigorous standards and is backed by General Motors
$328.30
MSRP $473.90
Save $145.60
30.7% Off
84526613 - : Driver Side Front Compartment Upper Side Rail for GM Image

Driver Side Front Compartment Upper Side Rail

This GM Genuine Part is designed, engineered, and tested to rigorous standards and is backed by General Motors
$244.18
MSRP $352.47
Save $108.29
30.7% Off
23497935 - : Driver Side Underbody Rear Side Rail Extension for GM Image

Driver Side Underbody Rear Side Rail Extension

Outer. This GM Genuine Part is designed, engineered, and tested to rigorous standards and is backed by General Motors
$20.42
MSRP $29.48
Save $9.06
30.7% Off

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