Build your Jeep Wrangler JK (2007–2018) into a capable, trail-dominating machine with high-performance off-road parts and accessories from Underdog Motorsports. Whether you’re crawling rocks, hitting the dunes, or setting up for overland adventures, we’ve got the gear to get it done right.
Explore our wide selection of lift kits, shocks, bumpers, skid plates, wheels, tires, lighting, winches, and recovery gear—all from top brands trusted by Jeep owners worldwide.
From weekend warriors to daily drivers, we’ve got the right upgrades to improve performance, durability, and off-road capability. Let Underdog Motorsports help you turn your JK into the rig you’ve always wanted.
Axle Sleeve Kit|Axle Truss|Axle|Differential|Drivetrain & DifferentialsBest Selling ProductsJeep Off-Road Parts & AccessoriesJeep Off-Road Parts & AccessoriesJEEP WRANGLER JKJeep Wrangler JK Off-Road Parts & AccessoriesJeep Wrangler Off-Road Parts & AccessoriesNewest Off-Road Products | Tacoma, 4Runner, Tundra, GX, Bronco
TeraFlex JK: Front Axle Inner Sleeve and/or Inner Knuckle Gusset Kits reinforce the weak axle tubing and/or knuckles on JK Wrangler/Unlimited Dana 30 or...
Best Selling ProductsJeep Off-Road Parts & AccessoriesJeep Off-Road Parts & AccessoriesJEEP WRANGLER JKJeep Wrangler JK Off-Road Parts & AccessoriesJeep Wrangler Off-Road Parts & AccessoriesNewest Off-Road Products | Tacoma, 4Runner, Tundra, GX, BroncoShock Absorber Kit|Shock Absorber|Shocks|Suspension|Suspension / Steering / Brakes
Designed specifically for the Jeep Wrangler, TeraFlex 9550 VSS (Vehicle Specific Shocks) Shock Absorbers are engineered, valved, and tuned for extreme off-road performance while...
Best Selling ProductsJeep Off-Road Parts & AccessoriesJeep Off-Road Parts & AccessoriesJEEP WRANGLER JKJeep Wrangler JK Off-Road Parts & AccessoriesJeep Wrangler Off-Road Parts & AccessoriesNewest Off-Road Products | Tacoma, 4Runner, Tundra, GX, BroncoShock Absorber Kit|Shock Absorber|Shocks|Suspension|Suspension / Steering / Brakes
Designed specifically for the Jeep Wrangler, TeraFlex 9550 VSS (Vehicle Specific Shocks) Shock Absorbers are engineered, valved, and tuned for extreme off-road performance while...
Best Selling ProductsJeep Off-Road Parts & AccessoriesJeep Off-Road Parts & AccessoriesJEEP WRANGLER JKJeep Wrangler JK Off-Road Parts & AccessoriesJeep Wrangler Off-Road Parts & AccessoriesNewest Off-Road Products | Tacoma, 4Runner, Tundra, GX, BroncoShock Absorber Kit|Shock Absorber|Shocks|Suspension|Suspension / Steering / Brakes
Designed specifically for the Jeep Wrangler, TeraFlex 9550 VSS (Vehicle Specific Shocks) Shock Absorbers are engineered, valved, and tuned for extreme off-road performance while...
Best Selling ProductsJeep Off-Road Parts & AccessoriesJeep Off-Road Parts & AccessoriesJEEP WRANGLER JKJeep Wrangler JK Off-Road Parts & AccessoriesJeep Wrangler Off-Road Parts & AccessoriesNewest Off-Road Products | Tacoma, 4Runner, Tundra, GX, BroncoShock Absorber|Shocks|Suspension|Suspension / Steering / Brakes
Designed specifically for the Jeep Wrangler, TeraFlex 9550 VSS (Vehicle Specific Shocks) Shock Absorbers are engineered, valved, and tuned for extreme off-road performance while...
Best Selling ProductsJeep Off-Road Parts & AccessoriesJeep Off-Road Parts & AccessoriesJEEP WRANGLER JKJeep Wrangler JK Off-Road Parts & AccessoriesJeep Wrangler Off-Road Parts & AccessoriesNewest Off-Road Products | Tacoma, 4Runner, Tundra, GX, BroncoShock Absorber|Shocks|Suspension|Suspension / Steering / Brakes
Designed specifically for the Jeep Wrangler, TeraFlex 9550 VSS (Vehicle Specific Shocks) Shock Absorbers are engineered, valved, and tuned for extreme off-road performance while...
Best Selling ProductsJeep Off-Road Parts & AccessoriesJeep Off-Road Parts & AccessoriesJEEP WRANGLER JKJeep Wrangler JK Off-Road Parts & AccessoriesJeep Wrangler Off-Road Parts & AccessoriesNewest Off-Road Products | Tacoma, 4Runner, Tundra, GX, BroncoShock Absorber|Shocks|Suspension|Suspension / Steering / Brakes
Designed specifically for the Jeep Wrangler, TeraFlex 9550 VSS (Vehicle Specific Shocks) Shock Absorbers are engineered, valved, and tuned for extreme off-road performance while...
Best Selling ProductsJeep Off-Road Parts & AccessoriesJeep Off-Road Parts & AccessoriesJEEP WRANGLER JKJeep Wrangler JK Off-Road Parts & AccessoriesJeep Wrangler Off-Road Parts & AccessoriesNewest Off-Road Products | Tacoma, 4Runner, Tundra, GX, BroncoShock Absorber|Shocks|Suspension|Suspension / Steering / Brakes
Designed specifically for the Jeep Wrangler, TeraFlex 9550 VSS (Vehicle Specific Shocks) Shock Absorbers are engineered, valved, and tuned for extreme off-road performance while...
Best Selling ProductsJeep Off-Road Parts & AccessoriesJeep Off-Road Parts & AccessoriesJEEP WRANGLER JKJeep Wrangler JK Off-Road Parts & AccessoriesJeep Wrangler Off-Road Parts & AccessoriesNewest Off-Road Products | Tacoma, 4Runner, Tundra, GX, BroncoShock Absorber|Shocks|Suspension|Suspension / Steering / Brakes
Designed specifically for the Jeep Wrangler, TeraFlex 9550 VSS (Vehicle Specific Shocks) Shock Absorbers are engineered, valved, and tuned for extreme off-road performance while...
Best Selling ProductsJeep Off-Road Parts & AccessoriesJeep Off-Road Parts & AccessoriesJEEP WRANGLER JKJeep Wrangler JK Off-Road Parts & AccessoriesJeep Wrangler Off-Road Parts & AccessoriesNewest Off-Road Products | Tacoma, 4Runner, Tundra, GX, BroncoShock Absorber|Shocks|Suspension|Suspension / Steering / Brakes
Designed specifically for the Jeep Wrangler, TeraFlex 9550 VSS (Vehicle Specific Shocks) Shock Absorbers are engineered, valved, and tuned for extreme off-road performance while...
Best Selling ProductsJeep Off-Road Parts & AccessoriesJeep Off-Road Parts & AccessoriesJEEP WRANGLER JKJeep Wrangler JK Off-Road Parts & AccessoriesJeep Wrangler Off-Road Parts & AccessoriesNewest Off-Road Products | Tacoma, 4Runner, Tundra, GX, BroncoTrack Bar Bracket|Track Bar|Track Bar / Drop Brackets|Suspension|Suspension / Steering / Brakes
The TeraFlex JK: Front Track Bar Drop Bracket and Frame Brace Kit addresses many front-end issues prevalent with lifted JK Wrangler/Unlimited models. Highly recommended...
Best Selling ProductsJeep Off-Road Parts & AccessoriesJeep Off-Road Parts & AccessoriesJEEP WRANGLER JKJeep Wrangler JK Off-Road Parts & AccessoriesJeep Wrangler Off-Road Parts & AccessoriesNewest Off-Road Products | Tacoma, 4Runner, Tundra, GX, BroncoTrack Bar Bracket|Track Bar|Track Bar / Drop Brackets|Suspension|Suspension / Steering / Brakes
The TeraFlex JK: Rear Track Bar Axle Bracket corrects vehicle roll center, restores factory handling, and reduces body roll in lifted JK Wrangler/Unlimited models....
Best Selling ProductsJeep Off-Road Parts & AccessoriesJeep Off-Road Parts & AccessoriesJEEP WRANGLER JKJeep Wrangler JK Off-Road Parts & AccessoriesJeep Wrangler Off-Road Parts & AccessoriesNewest Off-Road Products | Tacoma, 4Runner, Tundra, GX, BroncoTrack Bar Bracket|Track Bar|Track Bar / Drop Brackets|Suspension|Suspension / Steering / Brakes
The TeraFlex JK: Rear Track Bar Axle Bracket corrects vehicle roll center, restores factory handling, and reduces body roll in lifted JK Wrangler models....
Best Selling ProductsJeep Off-Road Parts & AccessoriesJeep Off-Road Parts & AccessoriesJEEP WRANGLER JKJeep Wrangler JK Off-Road Parts & AccessoriesJeep Wrangler Off-Road Parts & AccessoriesNewest Off-Road Products | Tacoma, 4Runner, Tundra, GX, BroncoTrack Bar Bracket|Track Bar|Track Bar / Drop Brackets|Suspension|Suspension / Steering / Brakes
The TeraFlex JK 2.5 inch Performance Spacer Lift Rear Track Bar Frame Bracket Kit restores the track bar to its natural position without binding...
Best Selling ProductsJeep Off-Road Parts & AccessoriesJeep Off-Road Parts & AccessoriesJEEP WRANGLER JKJeep Wrangler JK Off-Road Parts & AccessoriesJeep Wrangler Off-Road Parts & AccessoriesNewest Off-Road Products | Tacoma, 4Runner, Tundra, GX, BroncoTrack Bar Bracket|Track Bar|Track Bar / Drop Brackets|Suspension|Suspension / Steering / Brakes
The TeraFlex JK: Front Track Bar Drop Bracket Kit lowers the Front Track Bar mounting point to correct steering geometry for superior highway drivability....
Axle Housing|Axle|Differential|Drivetrain & DifferentialsBest Selling ProductsJeep Off-Road Parts & AccessoriesJeep Off-Road Parts & AccessoriesJEEP WRANGLER JKJeep Wrangler JK Off-Road Parts & AccessoriesJeep Wrangler Off-Road Parts & AccessoriesNewest Off-Road Products | Tacoma, 4Runner, Tundra, GX, Bronco
TeraFlex JK Front Tera44 Replacement Axle Housings include a heavy-duty housing with axle tubes, bracketry, and forged inner knuckles. Pre-installed inner seals and upper...
Axle Housing|Axle|Differential|Drivetrain & DifferentialsBest Selling ProductsJeep Off-Road Parts & AccessoriesJeep Off-Road Parts & AccessoriesJEEP WRANGLER JKJeep Wrangler JK Off-Road Parts & AccessoriesJeep Wrangler Off-Road Parts & AccessoriesNewest Off-Road Products | Tacoma, 4Runner, Tundra, GX, Bronco
TeraFlex JK Front Tera44 Replacement Axle Housings include a heavy-duty housing with axle tubes, bracketry, and forged inner knuckles. Pre-installed inner seals and upper...
Best Selling ProductsJeep Off-Road Parts & AccessoriesJeep Off-Road Parts & AccessoriesJEEP WRANGLER JKJeep Wrangler JK Off-Road Parts & AccessoriesJeep Wrangler Off-Road Parts & AccessoriesNewest Off-Road Products | Tacoma, 4Runner, Tundra, GX, BroncoRocker Guards|Armor|Bumpers & Armor|Exterior Parts & Car Care
The TeraFlex JKU 4-Door Aluminum Rock Slider Kit protects the lower side of your JKU Wrangler Unlimited.Fits: JKU Wrangler Unlimited (4-door) Includes: Aluminum rock...
Best Selling ProductsJeep Off-Road Parts & AccessoriesJeep Off-Road Parts & AccessoriesJEEP WRANGLER JKJeep Wrangler JK Off-Road Parts & AccessoriesJeep Wrangler Off-Road Parts & AccessoriesLift Kits|Suspension|Suspension / Steering / BrakesNewest Off-Road Products | Tacoma, 4Runner, Tundra, GX, Bronco
TeraFlex Alpine CT (Cross-Trail) Suspension Systems build on our Sport ST (Street and Trail) Suspension Systems. The TeraFlex 3 inch Alpine CT3 Outback Overland...
Best Selling ProductsJeep Off-Road Parts & AccessoriesJeep Off-Road Parts & AccessoriesJEEP WRANGLER JKJeep Wrangler JK Off-Road Parts & AccessoriesJeep Wrangler Off-Road Parts & AccessoriesLift Kits|Suspension|Suspension / Steering / BrakesNewest Off-Road Products | Tacoma, 4Runner, Tundra, GX, Bronco
TeraFlex Alpine CT (Cross-Trail) Suspension Systems build on our Sport ST (Street and Trail) Suspension Systems. The TeraFlex 3 inch Alpine CT3 Outback Overland...
Best Selling ProductsJeep Off-Road Parts & AccessoriesJeep Off-Road Parts & AccessoriesJEEP WRANGLER JKJeep Wrangler JK Off-Road Parts & AccessoriesJeep Wrangler Off-Road Parts & AccessoriesLift Kits|Suspension|Suspension / Steering / BrakesNewest Off-Road Products | Tacoma, 4Runner, Tundra, GX, Bronco
Engineered with drivability in mind, the ultra-simple TeraFlex JK 4dr: 2.5 inch Coil Spring Lift Kit comes with the basic components required to fit...
Best Selling ProductsJeep Off-Road Parts & AccessoriesJeep Off-Road Parts & AccessoriesJEEP WRANGLER JKJeep Wrangler JK Off-Road Parts & AccessoriesJeep Wrangler Off-Road Parts & AccessoriesLift Kits|Suspension|Suspension / Steering / BrakesNewest Off-Road Products | Tacoma, 4Runner, Tundra, GX, Bronco
TeraFlex Alpine CT (Cross-Trail) Suspension Systems build on our Sport ST (Street and Trail) Suspension Systems. The TeraFlex 4 inch Alpine CT4 Prerunner Long...
Best Selling ProductsJeep Off-Road Parts & AccessoriesJeep Off-Road Parts & AccessoriesJEEP WRANGLER JKJeep Wrangler JK Off-Road Parts & AccessoriesJeep Wrangler Off-Road Parts & AccessoriesLift Kits|Suspension|Suspension / Steering / BrakesNewest Off-Road Products | Tacoma, 4Runner, Tundra, GX, Bronco
Engineered with drivability in mind, the ultra-simple TeraFlex JK 2dr: 2.5 inch Coil Spring Lift Kit comes with the basic components required to fit...
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