Western Star Trucks
Looking for Western Star truck parts? At 4 State Trucks, you'll find everything from durable replacements to custom accessories for your rig. Explore and find the perfect parts for your Western Star truck today!
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On Sale
Air For Engines Filter Cartridge - 00-C1140
RIGMASTER
Now: $25.70Was: $36.72RigMaster Air Filter Cartridge C 1140 For Air For EnginesNeed an efficient air filter cartridge for your engine? This aftermarket replacement air filter cartridge is sold individually and designed to provide optimal air filtration. As a cost-effective...Now: $25.70Was: $36.72 -
On Sale
Merritt Light Bracket Panel
MERRITT
Now: $129.49Was: $184.99Merritt Light Bracket Panel - Light Panel - Sold Individually - Aftermarket Replacement Part (Not OEM)Now: $129.49Was: $184.99 -
Merritt Diamond Plate Aluminum Single Radius Fender With 24-Inch Drop
MERRITT
$717.99Durable Diamond Plate Aluminum Fender With a 24-Inch DropUpgrade your truck with this merritt diamond plate aluminum single radius fender, designed for durability and a sleek, rugged look. Featuring a 24-inch drop, this fender provides reliable...$717.99 -
On Sale
Holes for 2-7 Way Merritt Connection Box
MERRITT
Now: $431.89Was: $616.99Merritt Connection Box With Holes for 2-7 Way - Connection Box - 2- 7 Way - Sold Individually - Aftermarket Replacement Part (Not OEM)Now: $431.89Was: $616.99 -
45.5 Inch Stainless Steel Merritt Single Fender
MERRITT
$473.57Premium Stainless Steel 45.5 Inch Single Fender for Enhanced DurabilityUpgrade your truck with the Merritt 45.5-inch stainless steel single fender. This fender is built to last, offering reliable protection against road debris. Made from premium...$473.57 -
Stage 1 Turbocharger Ref 3804502 For Cummins N14 By Switchblade
SWITCHBLADE TURBO
$2,191.99Switchblade Turbo Stage 1Switchblade$2,191.99 -
3 Stage Turbocharger Ref 14969880000 For Caterpillar By Switchblade
SWITCHBLADE TURBO
$2,328.99Switchblade 3 Stage TurboSwitchblade$2,328.99 -
3 Stage Turbocharger Ref 14969880000 For Detroit Engines By Switchblade
SWITCHBLADE TURBO
$2,328.99Switchblade 3 Stage TurboSwitchblade$2,328.99 -
3 Stage Turbocharger Ref 14969880000 By Switchblade
SWITCHBLADE TURBO
$2,328.99Switchblade 3 Stage TurboSwitchblade$2,328.99 -
5 Stage Turbocharger Ref 14969880002 For Caterpillar By Switchblade
SWITCHBLADE TURBO
$2,602.99Switchblade 5 Stage TurboSwitchblade$2,602.99 -
4 Stage Turbocharger For Caterpillar Engine 14969880001 By Switchblade
SWITCHBLADE TURBO
$2,465.99Switchblade 4 Stage Turbo For Caterpillar EngineSwitchblade$2,465.99 -
Stage Four Turbocharger Replaces 1496988001 By Switchblade
SWITCHBLADE TURBO
$2,465.99Switchblade Stage 4 TurboEnhance your vehicle's power with this top-tier turbocharger featuring an 80 mm compressor wheel (inducer) diameter. Proudly made in the USA, it delivers exceptional performance and airflow. Sold individually, this turbo is...$2,465.99