Upgrade your Jeep Wrangler TJ (1997–2006) with high-quality off-road parts and accessories designed for strength, performance, and rugged style. Whether you’re restoring a classic trail rig or building a capable crawler, Underdog Motorsports has the gear to get your TJ ready for adventure.
Our selection includes lift kits, suspension components, control arms, off-road bumpers, skid plates, wheels, tires, lighting, and recovery gear—all from top-tier brands known for Jeep performance.
Bring your TJ to life with parts built to handle tough terrain while delivering solid ride quality and aggressive looks. Start your Jeep Wrangler TJ build today with help from the off-road experts at Underdog Motorsports
Best Selling ProductsDifferentialsDrivetrainJEEP WRANGLER JKJeep Wrangler JK Off-Road Parts & AccessoriesJEEP WRANGLER TJJeep Wrangler TJ Off-Road Parts & AccessoriesNewest Off-Road Products | Tacoma, 4Runner, Tundra, GX, Bronco
The Detroit Truetrac is a helical-gear style, limited-slip differential that maximizes wheel traction and enhances driving characteristics. Maintenance-free, it features smooth, automatic operation in...
Best Selling ProductsDifferentialsDrivetrainJEEP WRANGLER JKJeep Wrangler JK Off-Road Parts & AccessoriesJEEP WRANGLER TJJeep Wrangler TJ Off-Road Parts & AccessoriesNewest Off-Road Products | Tacoma, 4Runner, Tundra, GX, Bronco
The Detroit Truetrac is a helical-gear style, limited-slip differential that maximizes wheel traction and enhances driving characteristics. Maintenance-free, it features smooth, automatic operation in...
Best Selling ProductsDifferentialsDrivetrainJEEP WRANGLER JKJeep Wrangler JK Off-Road Parts & AccessoriesJEEP WRANGLER TJJeep Wrangler TJ Off-Road Parts & AccessoriesNewest Off-Road Products | Tacoma, 4Runner, Tundra, GX, Bronco
The Detroit Truetrac is a helical-gear style, limited-slip differential that maximizes wheel traction and enhances driving characteristics. Maintenance-free, it features smooth, automatic operation in...
Best Selling ProductsDifferentialsDrivetrainJEEP WRANGLER JKJeep Wrangler JK Off-Road Parts & AccessoriesJEEP WRANGLER TJJeep Wrangler TJ Off-Road Parts & AccessoriesNewest Off-Road Products | Tacoma, 4Runner, Tundra, GX, Bronco
The Detroit Truetrac is a helical-gear style, limited-slip differential that maximizes wheel traction and enhances driving characteristics. Maintenance-free, it features smooth, automatic operation in...
Best Selling ProductsDifferentialsDrivetrainJEEP WRANGLER JKJeep Wrangler JK Off-Road Parts & AccessoriesJEEP WRANGLER TJJeep Wrangler TJ Off-Road Parts & AccessoriesNewest Off-Road Products | Tacoma, 4Runner, Tundra, GX, Bronco
The Detroit Truetrac is a helical-gear style, limited-slip differential that maximizes wheel traction and enhances driving characteristics. Maintenance-free, it features smooth, automatic operation in...
Best Selling ProductsDifferentialsDrivetrainJEEP WRANGLER JKJeep Wrangler JK Off-Road Parts & AccessoriesJEEP WRANGLER TJJeep Wrangler TJ Off-Road Parts & AccessoriesNewest Off-Road Products | Tacoma, 4Runner, Tundra, GX, Bronco
The Eaton ELocker is an electronic, selectable differential designed for drivers that need traction on-demand. At the flip of a dash switch, drivers can...
Best Selling ProductsDifferentialsDrivetrainJEEP WRANGLER JKJeep Wrangler JK Off-Road Parts & AccessoriesJEEP WRANGLER TJJeep Wrangler TJ Off-Road Parts & AccessoriesNewest Off-Road Products | Tacoma, 4Runner, Tundra, GX, Bronco
The Eaton ELocker is an electronic, selectable differential designed for drivers that need traction on-demand. At the flip of a dash switch, drivers can...
Best Selling ProductsDifferentialsDrivetrainJEEP WRANGLER JKJeep Wrangler JK Off-Road Parts & AccessoriesJEEP WRANGLER TJJeep Wrangler TJ Off-Road Parts & AccessoriesNewest Off-Road Products | Tacoma, 4Runner, Tundra, GX, Bronco
The Detroit Locker is a 100% automatic locking differential that provides ultimate traction for mild to extreme vehicle applications. Its unique, bullet-proof design is...
Best Selling ProductsDifferentialsDrivetrainJEEP WRANGLER JKJeep Wrangler JK Off-Road Parts & AccessoriesJEEP WRANGLER TJJeep Wrangler TJ Off-Road Parts & AccessoriesNewest Off-Road Products | Tacoma, 4Runner, Tundra, GX, Bronco
The Detroit Locker is a 100% automatic locking differential that provides ultimate traction for mild to extreme vehicle applications. Its unique, bullet-proof design is...
Best Selling ProductsDifferentialsDrivetrainJEEP WRANGLER JKJeep Wrangler JK Off-Road Parts & AccessoriesJEEP WRANGLER TJJeep Wrangler TJ Off-Road Parts & AccessoriesNewest Off-Road Products | Tacoma, 4Runner, Tundra, GX, Bronco
The Detroit Locker is a 100% automatic locking differential that provides ultimate traction for mild to extreme vehicle applications. Its unique, bullet-proof design is...
Best Selling ProductsDifferentialsDrivetrainJEEP WRANGLER JKJeep Wrangler JK Off-Road Parts & AccessoriesJEEP WRANGLER TJJeep Wrangler TJ Off-Road Parts & AccessoriesNewest Off-Road Products | Tacoma, 4Runner, Tundra, GX, Bronco
The Detroit Locker is a 100% automatic locking differential that provides ultimate traction for mild to extreme vehicle applications. Its unique, bullet-proof design is...
Best Selling ProductsDifferentialsDrivetrainJEEP WRANGLER JKJeep Wrangler JK Off-Road Parts & AccessoriesJEEP WRANGLER TJJeep Wrangler TJ Off-Road Parts & AccessoriesNewest Off-Road Products | Tacoma, 4Runner, Tundra, GX, Bronco
The Detroit Locker is a 100% automatic locking differential that provides ultimate traction for mild to extreme vehicle applications. Its unique, bullet-proof design is...
The TJ replacement antenna is a stainless steel mast with e-coated black finish. OEM style grommet, cable and foam insulating cover. Includes new base...
Best Selling ProductsJeep Wrangler JK Off-Road Parts & AccessoriesJeep Wrangler TJ Off-Road Parts & AccessoriesLight Accessories and WiringLightsNewest Off-Road Products | Tacoma, 4Runner, Tundra, GX, Bronco
Bushwacker LED Marker Lights are high quality replacement marker lights for any universal application. Available in 3 wire arrangement for multiple wiring options. LED...
Best Selling ProductsExhaust, Mufflers & TipsJeep Off-Road Parts & AccessoriesJEEP WRANGLER TJJeep Wrangler TJ Off-Road Parts & AccessoriesMufflerNewest Off-Road Products | Tacoma, 4Runner, Tundra, GX, Bronco
Straight-through flow path. Exclusive expansion chamber dissipates annoying mid-range drone. Flows up to 201% better than stock. Authoritative, but never overpowering, exhaust sound. Polished-stainless...
Best Selling ProductsExhaust, Mufflers & TipsJeep Off-Road Parts & AccessoriesJEEP WRANGLER TJJeep Wrangler TJ Off-Road Parts & AccessoriesMufflerNewest Off-Road Products | Tacoma, 4Runner, Tundra, GX, Bronco
Straight-through flow path. Exclusive expansion chamber dissipates annoying mid-range drone. Flows up to 201% better than stock. Authoritative, but never overpowering, exhaust sound. Polished-stainless...
Best Selling ProductsExhaust, Mufflers & TipsJeep Off-Road Parts & AccessoriesJEEP WRANGLER TJJeep Wrangler TJ Off-Road Parts & AccessoriesMufflerNewest Off-Road Products | Tacoma, 4Runner, Tundra, GX, Bronco
Straight-through flow path. Exclusive expansion chamber dissipates annoying mid-range drone. Flows up to 201% better than stock. Authoritative, but never overpowering, exhaust sound. Polished-stainless...
Best Selling ProductsJeep Off-Road Parts & AccessoriesJEEP WRANGLER TJJeep Wrangler TJ Off-Road Parts & AccessoriesNewest Off-Road Products | Tacoma, 4Runner, Tundra, GX, BroncoPerformance PackagesProgrammers & Chips
Gain up to +29 hp/40 lb-ft. Chrome or Cerakote Black tip. Includes TorqueTubes exhaust manifold. The ultimate engineered power system: adds exhaust manifold to...
Best Selling ProductsJeep Off-Road Parts & AccessoriesJEEP WRANGLER TJJeep Wrangler TJ Off-Road Parts & AccessoriesNewest Off-Road Products | Tacoma, 4Runner, Tundra, GX, BroncoPerformance PackagesProgrammers & Chips
Gain up to +29 hp/40 lb-ft. Chrome or Cerakote Black tip. Includes TorqueTubes exhaust manifold. The ultimate engineered power system: adds exhaust manifold to...
Best Selling ProductsJeep Off-Road Parts & AccessoriesJEEP WRANGLER TJJeep Wrangler TJ Off-Road Parts & AccessoriesNewest Off-Road Products | Tacoma, 4Runner, Tundra, GX, BroncoPerformance PackagesProgrammers & Chips
Gain up to +29 hp/40 lb-ft. Chrome or Cerakote Black tip. Includes TorqueTubes exhaust manifold. The ultimate engineered power system: adds exhaust manifold to...
Best Selling ProductsJeep Off-Road Parts & AccessoriesJEEP WRANGLER TJJeep Wrangler TJ Off-Road Parts & AccessoriesNewest Off-Road Products | Tacoma, 4Runner, Tundra, GX, BroncoPerformance PackagesProgrammers & Chips
Gain up to +29 hp/40 lb-ft. Chrome or Cerakote Black tip. Includes TorqueTubes exhaust manifold. The ultimate engineered power system: adds exhaust manifold to...
Best Selling ProductsJeep Off-Road Parts & AccessoriesJEEP WRANGLER TJJeep Wrangler TJ Off-Road Parts & AccessoriesNewest Off-Road Products | Tacoma, 4Runner, Tundra, GX, BroncoPerformance PackagesProgrammers & Chips
Gain up to +29 hp/40 lb-ft. Chrome or Cerakote Black tip. Includes TorqueTubes exhaust manifold. The ultimate engineered power system: adds exhaust manifold to...
Best Selling ProductsJeep Off-Road Parts & AccessoriesJEEP WRANGLER TJJeep Wrangler TJ Off-Road Parts & AccessoriesNewest Off-Road Products | Tacoma, 4Runner, Tundra, GX, BroncoPerformance PackagesProgrammers & Chips
Gain up to +29 hp/40 lb-ft. Chrome or Cerakote Black tip. Includes TorqueTubes exhaust manifold. The ultimate engineered power system: adds exhaust manifold to...
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