2003–2009 Toyota 4Runner Off-Road Parts & Accessories
Enhance your 2003–2009 Toyota 4Runner with our selection of premium off-road parts and accessories. Whether you're building for weekend trails or daily driving with extra attitude, we offer everything you need to upgrade performance, ride quality, and durability.
Choose from lift kits, shocks, control arms, bumpers, skid plates, wheels, tires, lighting, and recovery gear, all sourced from top brands known for quality and off-road performance.
At Underdog Motorsports, we specialize in Toyota builds and understand what your 4Runner needs to handle whatever lies ahead. Build with confidence and transform your 4th Gen 4Runner into a capable, head-turning off-road machine.
1996–2002 Toyota 4Runner Off-Road Parts & Accessories2003–2009 Toyota 4Runner Off-Road Parts & Accessories2007–2014 Toyota FJ Cruiser Parts & Accessories | Lift Kits, Wheels, BumpersBest Selling ProductsDifferentialsDrivetrainLEXUS GX470Newest Off-Road Products | Tacoma, 4Runner, Tundra, GX, BroncoToyotaTOYOTA 4RUNNER 03-09TOYOTA 4RUNNER 96-02TOYOTA FJ
Everything about the Yukon Grizzly Locker is hardcore, its casing and gears, its advanced gear tooth design, and its impact on traction and performance....
1996–2002 Toyota 4Runner Off-Road Parts & Accessories2003–2009 Toyota 4Runner Off-Road Parts & Accessories2007–2014 Toyota FJ Cruiser Parts & Accessories | Lift Kits, Wheels, BumpersBest Selling ProductsDifferentialsDrivetrainLEXUS GX470Newest Off-Road Products | Tacoma, 4Runner, Tundra, GX, BroncoToyotaTOYOTA 4RUNNER 03-09TOYOTA 4RUNNER 96-02TOYOTA FJTOYOTA TACOMA 05-15TOYOTA TACOMA 16-22TOYOTA TACOMA 95-04
Yukon Dura Grip is a positraction limited slip differential that provides smooth yet aggressive traction, giving you the confidence and performance you need across...
2003–2009 Toyota 4Runner Off-Road Parts & Accessories2007–2014 Toyota FJ Cruiser Parts & Accessories | Lift Kits, Wheels, BumpersAxlesBest Selling ProductsDrivetrainLEXUS GX470Newest Off-Road Products | Tacoma, 4Runner, Tundra, GX, BroncoToyotaTOYOTA 4RUNNER 03-09TOYOTA FJ
Yukon high-performance axles are built with high-tensile strength 4340 chromoly, use superior production methods that include cold roll formed splines, and feature advanced induction...
1996–2002 Toyota 4Runner Off-Road Parts & Accessories2003–2009 Toyota 4Runner Off-Road Parts & Accessories2007–2014 Toyota FJ Cruiser Parts & Accessories | Lift Kits, Wheels, BumpersBest Selling ProductsDrivetrainLEXUS GX470Newest Off-Road Products | Tacoma, 4Runner, Tundra, GX, BroncoRing and Pinion Install KitsToyotaTOYOTA 4RUNNER 03-09TOYOTA 4RUNNER 96-02TOYOTA FJTOYOTA TACOMA 16-22
Yukon Pinion installation kits are a terrific solution for gear installation on lower mileage vehicles where the carrier bearings & races can be reused....
1996–2002 Toyota 4Runner Off-Road Parts & Accessories2003–2009 Toyota 4Runner Off-Road Parts & Accessories2007–2014 Toyota FJ Cruiser Parts & Accessories | Lift Kits, Wheels, Bumpers2010–2024 Toyota 4Runner Off-Road Parts & AccessoriesBest Selling ProductsDrivetrainLEXUS GX470Newest Off-Road Products | Tacoma, 4Runner, Tundra, GX, BroncoRing and Pinion Install KitsToyotaTOYOTA 4RUNNER 03-09TOYOTA 4RUNNER 96-02TOYOTA FJTOYOTA TACOMA 16-22
Yukon Pinion Installation Kits are a terrific solution for gear installation on lower mileage vehicles where the carrier bearings and races can be reused....
2003–2009 Toyota 4Runner Off-Road Parts & Accessories2007–2014 Toyota FJ Cruiser Parts & Accessories | Lift Kits, Wheels, Bumpers2010–2024 Toyota 4Runner Off-Road Parts & AccessoriesBest Selling ProductsDrivetrainNewest Off-Road Products | Tacoma, 4Runner, Tundra, GX, BroncoRing and Pinion Install KitsToyotaTOYOTA 4RUNNER 03-09TOYOTA 4RUNNER 10-24TOYOTA FJTOYOTA TACOMA 05-15TOYOTA TACOMA 16-22
Yukon Pinion installation kits are a terrific solution for gear installation on lower mileage vehicles where the carrier bearings & races can be reused....
2003–2009 Toyota 4Runner Off-Road Parts & Accessories2007–2014 Toyota FJ Cruiser Parts & Accessories | Lift Kits, Wheels, Bumpers2010–2024 Toyota 4Runner Off-Road Parts & AccessoriesBest Selling ProductsDrivetrainNewest Off-Road Products | Tacoma, 4Runner, Tundra, GX, BroncoRing and Pinion Install KitsToyotaTOYOTA FJ
Yukon Pinion installation kits are a terrific solution for gear installation on lower mileage vehicles where the carrier bearings & races can be reused....
2003–2009 Toyota 4Runner Off-Road Parts & Accessories2007–2014 Toyota FJ Cruiser Parts & Accessories | Lift Kits, Wheels, BumpersBest Selling ProductsBushing KitsLEXUS GX460LEXUS GX470Newest Off-Road Products | Tacoma, 4Runner, Tundra, GX, BroncoPerformance Suspension Upgrades for Toyota, Jeep & MoreSuspensionToyotaTOYOTA 4RUNNER 03-09TOYOTA FJTOYOTA TACOMA 05-15
Worn front control arm bushings have a huge influence on vehicle stability, steering precision and braking efficiency. Replace worn bushings to as new condition...
1996–2002 Toyota 4Runner Off-Road Parts & Accessories2003–2009 Toyota 4Runner Off-Road Parts & AccessoriesBest Selling ProductsBushing KitsNewest Off-Road Products | Tacoma, 4Runner, Tundra, GX, BroncoPerformance Suspension Upgrades for Toyota, Jeep & MoreSuspensionToyotaTOYOTA 4RUNNER 03-09TOYOTA 4RUNNER 96-02
Shock absorber advances and demands for improved travel and load bearing has placed extra importance and stress on shock absorber bushings. Whiteline's superior formulation...
2003–2009 Toyota 4Runner Off-Road Parts & Accessories2007–2014 Toyota FJ Cruiser Parts & Accessories | Lift Kits, Wheels, Bumpers2010–2024 Toyota 4Runner Off-Road Parts & AccessoriesBest Selling ProductsNewest Off-Road Products | Tacoma, 4Runner, Tundra, GX, BroncoPerformance Suspension Upgrades for Toyota, Jeep & MoreSuspensionSway Bar BushingsToyotaTOYOTA 4RUNNER 03-09TOYOTA 4RUNNER 10-24TOYOTA FJ
Worn or deteriorated link bushings although small can have considerable influence over sway bar performance and more notably vehicle handling behaviour. Whiteline bushings are...
2003–2009 Toyota 4Runner Off-Road Parts & Accessories2007–2014 Toyota FJ Cruiser Parts & Accessories | Lift Kits, Wheels, Bumpers2010–2024 Toyota 4Runner Off-Road Parts & AccessoriesBest Selling ProductsBushing KitsNewest Off-Road Products | Tacoma, 4Runner, Tundra, GX, BroncoPerformance Suspension Upgrades for Toyota, Jeep & MoreSuspensionSway Bar BushingsTOYOTA 4RUNNER 03-09TOYOTA 4RUNNER 10-24TOYOTA FJ
Worn or deteriorated link bushings although small can have considerable influence over sway bar performance and more notably vehicle handling behaviour. Whiteline bushings are...
Relocates license plate. Bolts directly to ultimate and e-series bar. Black powder coated steel bracket. Hardware is included.Installation Instructions Relocates the license plate above...
Required with Safari light bar. Mount kit is customized for each vehicle. Easy no drill installation.This Part Fits: Year Make Model Submodel 2003-2004 Lexus...
2003–2009 Toyota 4Runner Off-Road Parts & Accessories2010–2024 Toyota 4Runner Off-Road Parts & Accessories2025+ Toyota 4Runner Off-Road Parts & AccessoriesBest Selling ProductsNerf Bars & Running BoardsNewest Off-Road Products | Tacoma, 4Runner, Tundra, GX, BroncoRunning BoardsTOYOTA 4RUNNER 03-09TOYOTA 4RUNNER 10-24TOYOTA 4RUNNER 25-TOYOTA LC250 24-TOYOTA TACOMA 05-15TOYOTA TACOMA 16-22TOYOTA tacoma 24-TOYOTA TUNDRA 00-06
Westins Grate Steps Running Boards are engineered to provide maximum traction without sacrificing style. The 6 1/4in. step surface width features an aggressive 1/4in....
2003–2009 Toyota 4Runner Off-Road Parts & Accessories2010–2024 Toyota 4Runner Off-Road Parts & Accessories2025+ Toyota 4Runner Off-Road Parts & AccessoriesBest Selling ProductsFord broncoNerf Bars & Running BoardsNewest Off-Road Products | Tacoma, 4Runner, Tundra, GX, BroncoRunning BoardsTOYOTA 4RUNNER 03-09TOYOTA 4RUNNER 10-24TOYOTA TACOMA 05-15TOYOTA TACOMA 16-22TOYOTA TACOMA 95-04TOYOTA TUNDRA 00-06
Sure-Grip Running Boards; Brite Aluminum; 72 in. Length; Does Not Include Mount Kit; Vehicle Specific Mount Kit Must Be Purchased Separately; Vehicle Specific Mount...
2003–2009 Toyota 4Runner Off-Road Parts & Accessories2010–2024 Toyota 4Runner Off-Road Parts & Accessories2025+ Toyota 4Runner Off-Road Parts & AccessoriesBest Selling ProductsFord broncoNerf Bars & Running BoardsNewest Off-Road Products | Tacoma, 4Runner, Tundra, GX, BroncoRunning BoardsTOYOTA 4RUNNER 03-09TOYOTA 4RUNNER 10-24TOYOTA TACOMA 05-15TOYOTA TACOMA 16-22TOYOTA TACOMA 95-04TOYOTA TUNDRA 00-06
Sure-Grip Running Boards; Black Aluminum; 72 in. Length; Does Not Include Mount Kit; Vehicle Specific Mount Kit Must Be Purchased Separately; Vehicle Specific Mount...
2003–2009 Toyota 4Runner Off-Road Parts & Accessories2010–2024 Toyota 4Runner Off-Road Parts & Accessories2025+ Toyota 4Runner Off-Road Parts & AccessoriesBest Selling ProductsFord broncoNerf Bars & Running BoardsNewest Off-Road Products | Tacoma, 4Runner, Tundra, GX, BroncoRunning BoardsTOYOTA 4RUNNER 03-09TOYOTA 4RUNNER 10-24TOYOTA TACOMA 05-15TOYOTA TACOMA 16-22TOYOTA TACOMA 95-04TOYOTA TUNDRA 00-06
Sure-Grip Running Boards; Brushed Aluminum; 72 in. Length; Does Not Include Mount Kit; Vehicle Specific Mount Kit Must Be Purchased Separately;This Part Fits: Year...
2003–2009 Toyota 4Runner Off-Road Parts & AccessoriesAir Intake SystemsBest Selling ProductsCold Air IntakesNewest Off-Road Products | Tacoma, 4Runner, Tundra, GX, BroncoToyotaTOYOTA 4RUNNER 03-09
Volant Performance Air Intake Systems are designed for one thing, Performance. By optimizing airflow and utilizing free-flowing filters, Volant Performance Intakes outflow stock systems...
2003–2009 Toyota 4Runner Off-Road Parts & AccessoriesAir Intake SystemsBest Selling ProductsCold Air IntakesNewest Off-Road Products | Tacoma, 4Runner, Tundra, GX, BroncoToyotaTOYOTA 4RUNNER 03-09
Volant Performance Air Intake Systems are designed for one thing, Performance. By optimizing airflow and utilizing free-flowing filters, Volant Performance Intakes outflow stock systems...
2003–2009 Toyota 4Runner Off-Road Parts & AccessoriesBest Selling ProductsHeadlightsLightsNewest Off-Road Products | Tacoma, 4Runner, Tundra, GX, BroncoToyotaTOYOTA 4RUNNER 03-09
Spyder Auto's custom lights can make your vehicle look better and increase your safety. The artistic designers at Spyder create one-of-a-kind masterpieces using lights...
2003–2009 Toyota 4Runner Off-Road Parts & Accessories2007–2014 Toyota FJ Cruiser Parts & Accessories | Lift Kits, Wheels, Bumpers2010–2024 Toyota 4Runner Off-Road Parts & AccessoriesBest Selling ProductsControl ArmsLEXUS GX460LEXUS GX470Newest Off-Road Products | Tacoma, 4Runner, Tundra, GX, BroncoPerformance Suspension Upgrades for Toyota, Jeep & MoreSuspensionTOYOTA 4RUNNER 03-09TOYOTA 4RUNNER 10-24TOYOTA FJ
SPC Performance's adjustable upper control arms are loaded with the features you need. Improve suspension travel, handling, and tire wear while you center your...
Improve droop travel, drivability and tire wear as well as adjusting tire position in your wheel well with SPC's adjustable front upper control arms...
Rhino-Rack 05-19 Nissan Frontier 4 Door Pick Up Pioneer Platform (60in x 54in) w/SX LegsThis Part Fits: Year Make Model Submodel 2013-2019 Nissan Frontier...
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