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.
Best Selling ProductsBump Stops|Suspension|Suspension / Steering / BrakesJeep 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 Bump Stop Kits add additional protection to your suspension over the factory bump stops, which can deform during hard compression and suspension movement....
Best Selling ProductsBump Stops|Suspension|Suspension / Steering / BrakesJeep 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 Bump Stop Kits add additional protection to your suspension over the factory bump stops, which can deform during hard compression and suspension movement....
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, BroncoSteering Drag Link|Steering|Suspension / Steering / Brakes
The TeraFlex JK/JKU Heavy-Duty Forged Drag Link Flip Kit is designed for extreme conditions that typically cause factory steering components to bend and fail,...
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, BroncoSteering Drag Link|Steering|Suspension / Steering / Brakes
The TeraFlex JK/JKU Heavy-Duty Forged Drag Link Kit is designed for extreme conditions that typically cause factory steering components to bend and fail.Fits: JK...
Best Selling ProductsDisc Brake Upgrade Kit|Brakes|Suspension / Steering / BrakesJeep 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
The TeraFlex JK/JKU Rear Performance Slotted Big Rotor Kit is an affordable upgrade for JK Wrangler and JKU Wrangler Unlimited models requiring increased braking...
Best Selling ProductsDisc Brake Upgrade Kit|Brakes|Suspension / Steering / BrakesJeep 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
The TeraFlex JK/JKU Rear Performance Big Rotor Kit is an affordable upgrade for JK Wrangler and JKU Wrangler Unlimited models requiring increased braking performance...
Best Selling ProductsCV Joint Bolt|Axle|Differential|Drivetrain & DifferentialsJeep 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
The TeraFlex JK/JKU Rzeppa High-Angle Factory Replacement CV Joint Kit replaces worn or damaged factory Rzeppa CV joint and driveshaft without resorting to an...
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, BroncoSuspension Control Arm|Suspension|Suspension / Steering / Brakes
TeraFlex JK/JKU Alpine Flexarm adjustable control arms provide maximum adjustability, dependability, and performance while retaining factory control arm mounting locations on JK Wrangler and...
Best Selling ProductsJeep Off-Road Parts & AccessoriesJeep Off-Road Parts & AccessoriesJEEP WRANGLER JKJeep Wrangler JK Off-Road Parts & AccessoriesJEEP WRANGLER JLJeep Wrangler JL Off-Road Parts & AccessoriesJeep Wrangler Off-Road Parts & AccessoriesNewest Off-Road Products | Tacoma, 4Runner, Tundra, GX, BroncoSuspension Control Arm|Suspension|Suspension / Steering / Brakes
TeraFlex JL/JLU/JK/JKU Alpine Flexarm adjustable control arms provide maximum adjustability, dependability, and performance while retaining factory control arm mounting locations on JL/JLU/JK/JKU models with...
Best Selling ProductsJeep Off-Road Parts & AccessoriesJeep Off-Road Parts & AccessoriesJEEP WRANGLER JKJeep Wrangler JK Off-Road Parts & AccessoriesJEEP WRANGLER JLJeep Wrangler JL Off-Road Parts & AccessoriesJeep Wrangler Off-Road Parts & AccessoriesNewest Off-Road Products | Tacoma, 4Runner, Tundra, GX, BroncoSuspension Control Arm|Suspension|Suspension / Steering / Brakes
TeraFlex JL/JLU/JK/JKU Alpine Flexarm adjustable control arms provide maximum adjustability, dependability, and performance while retaining factory control arm mounting locations on JL/JLU/JK/JKU models with...
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, BroncoSuspension Control Arm|Suspension|Suspension / Steering / Brakes
TeraFlex JK/JKU Alpine Flexarm adjustable control arms provide maximum adjustability, dependability, and performance while retaining factory control arm mounting locations on JK Wrangler and...
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, BroncoSuspension Control Arm|Suspension|Suspension / Steering / Brakes
TeraFlex JK/JKU Alpine Flexarm adjustable control arms provide maximum adjustability, dependability, and performance while retaining factory control arm mounting locations on JK Wrangler and...
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, BroncoSuspension Control Arm|Suspension|Suspension / Steering / Brakes
TeraFlex JK/JKU Alpine Long Flexarm adjustable control arms and Alpine Long Flexarm Brackets (not included - P/N 1957000) provides maintenance-free performance with complete alignment...
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, BroncoSuspension Control Arm|Suspension|Suspension / Steering / Brakes
TeraFlex JK/JKU Alpine Long Flexarm adjustable control arms and Alpine Long Flexarm Brackets (not included - P/N 1957000) provides maintenance-free performance with complete alignment...
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, BroncoSuspension Control Arm|Suspension|Suspension / Steering / Brakes
TeraFlex JK/JKU Alpine Long Flexarm adjustable control arms and Alpine Long Flexarm Brackets (not included - P/N 1957000) provides maintenance-free performance with complete alignment...
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, BroncoSuspension Control Arm|Suspension|Suspension / Steering / Brakes
TeraFlex JK/JKU Alpine Long Flexarm adjustable control arms and Alpine Long Flexarm Brackets (not included - P/N 1957000) provides maintenance-free performance with complete alignment...
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, BroncoSuspension Control Arm|Suspension|Suspension / Steering / Brakes
The TeraFlex JK/JKU: 8-Arm Alpine Long Flexarm Kit and Alpine Long Flexarm Bracket Kit provides maintenance-free performance with complete alignment adjustability for JK Wrangler...
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, BroncoSuspension Control Arm|Suspension|Suspension / Steering / Brakes
The TeraFlex JK/JKU: 8-Arm Alpine Long Flexarm Kit and Alpine Long Flexarm Bracket Kit (not included - P/N 1957000) provides maintenance-free performance with complete...
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, BroncoSuspension Control Arm|Suspension|Suspension / Steering / Brakes
TeraFlex JK/JKU Sport Flexarm preset control arms provide maintenance-free and dependable performance on JK Wrangler and JKU Wrangler Unlimited models with 2.5-3 inch lifts....
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, BroncoSuspension Control Arm|Suspension|Suspension / Steering / Brakes
TeraFlex JK/JKU Sport Flexarm preset control arms provide maintenance-free and dependable performance on JK Wrangler and JKU Wrangler Unlimited models with 2.5-3 inch lifts....
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, BroncoSuspension Control Arm|Suspension|Suspension / Steering / Brakes
TeraFlex JK/JKU Sport Flexarm preset control arms provide maintenance-free and dependable performance on JK Wrangler and JKU Wrangler Unlimited models with 2.5-3 inch lifts....
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, BroncoSuspension Control Arm|Suspension|Suspension / Steering / Brakes
TeraFlex JK/JKU Sport Flexarm preset control arms provide maintenance-free and dependable performance on JK Wrangler and JKU Wrangler Unlimited models with 2.5-3 inch lifts....
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, BroncoSuspension Control Arm|Suspension|Suspension / Steering / Brakes
TeraFlex JK/JKU Sport Flexarm preset control arms provide maintenance-free and dependable performance on JK Wrangler and JKU Wrangler Unlimited models with 2.5-3 inch lifts....
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, BroncoSuspension Control Arm|Suspension|Suspension / Steering / Brakes
TeraFlex JK/JKU Sport Flexarm preset control arms provide maintenance-free and dependable performance on JK Wrangler and JKU Wrangler Unlimited models with 2.5-3 inch lifts....
Axle Shafts|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
Replace your weak stock front axle shafts with a set of heavy-duty TeraFlex Axle Shafts! These axle shafts are constructed from high-strength dual-heat treated...
Axle Shafts|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
Replace your weak stock front axle shafts with a set of heavy-duty TeraFlex Axle Shafts! These axle shafts are constructed from high-strength dual-heat treated...
Axle Shafts|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
Replace your weak stock front axle shafts with a set of heavy-duty TeraFlex Axle Shafts! These axle shafts are constructed from high-strength dual-heat treated...
Axle Shafts|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
Replace your weak stock front axle shafts with a set of heavy-duty TeraFlex Axle Shafts! These axle shafts are constructed from high-strength dual-heat treated...
Axle Shafts|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
Replace your weak stock front axle shafts with a set of heavy-duty TeraFlex Axle Shafts! These axle shafts are constructed from high-strength dual-heat treated...
Axle Shafts|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
Replace your weak stock front axle shafts with a set of heavy-duty TeraFlex Axle Shafts! These axle shafts are constructed from high-strength dual-heat treated...
Axle Shafts|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
Replace your weak stock front axle shafts with a set of heavy-duty TeraFlex Axle Shafts! These axle shafts are constructed from high-strength dual-heat treated...
Axle Shafts|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
Replace your weak stock front axle shafts with a set of heavy-duty TeraFlex Axle Shafts! These axle shafts are constructed from high-strength dual-heat treated...
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