Free Shipping on Most Orders Over $149* • Backed by 65K+ Enthusiasts
HardRock4x4

2020–2026 T1XX-HD

Electronics & Gauges for GMC Sierra 2500 HD

2 verified fitment parts from top brands

GBE Pedal Monster Kits
Fits Your Rig

Banks Power

GBE Pedal Monster Kits

$319.00$354.44

You save $35.44

GBE Derringer Tuner
Fits Your Rig
Out of Stock

Banks Power

GBE Derringer Tuner

$490.00$544.44

You save $54.44

More for your Sierra 2500 HD

Bumpers & ArmorSuspension & Lift KitsWheels & TiresLightingTops & CoversInteriorExterior AccessoriesFenders & BodyWinches & RecoveryExhaust & PerformanceRoof Racks & StorageDrivetrain & AxlesBrakesAir Intake

Guaranteed Fitment

Verified Year/Make/Model data

Free Shipping

On orders over $124.99

65K+ Community

Trusted by real enthusiasts

Ships Fast

Direct from 4 US warehouses