Semi-Truck Engine Parts
Explore a diverse range of new semi-truck engine parts at 4 State Trucks. Discover quality OE and aftermarket replacement filters, belts, sensors, flywheel components, and more online to ensure your engine runs smoothly. Elevate your truck's engine with our quality parts today!
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Holson Turbo Replaces OE P3804502 For Cummins N14
AFTERMARKET
$2,073.99Turbo Replaces P3804502 * High Quality Turbocharger* Cast Iron* External Wastegate* Center Housing Cooling Type: Oil* Aluminum Compressor Housing * Mounting Bracket (Not Included)* Sold Individually* Warranty On Turbochargers Against Defects In...$2,073.99 -
CAT Engines Manifold Spacers Stainless Steel
FULL TILT PERFORMANCE
$299.89Manifold Spacers For CAT Engines Stainless Steel Fits C13, C15, ACERT And 3406 B, C And E * Made Of High Quality Stainless Steel* Exhaust Manifold Spacers* For Caterpillar Engines* Premium Bully Dog Product * Sold Individually* Made In USA* Warranty On...$299.89 -
Spicer Half Round End Yoke
OPP - ORIGINAL PARTS PROGRAM
$173.99Differential Pinion Shaft End YokeThe Spicer 6-4-7481-1 Differential End Yoke is a high-quality component designed for use in various driveshaft assemblies. It is crafted from durable materials and features precise engineering for superior performance,...$173.99 -
Fleet Charge Pre-Mixed 50/50 Coolant- 1 Gallon
AFTERMARKET
$13.04Antifreeze Fleet Charge Radiator CoolantRegulate the temperature in heavy duty diesel, gasoline, and natural gas engines with this high quality Fleet Coolant/Antifreeze. It is the original fully formulated supplemental Coolant additive (SCA) Pre-charge...$13.04 -
Air Dog Champ II Air Fuel Separator For CAT Engines 3406E, C13, C15, C16, C18
AFTERMARKET
$498.99Air Dog Champ II Air Fuel Separator Fits CAT EnginesGet your AirDog Champ II spin-on high-pressure fuel air separator at 4 State Trucks! It is designed specifically for CAT engines with secondary filters. This system effectively removes entrained air and...$498.99 -
On Sale
Fixed A/C Blue Orifice Tube For Ford, Sterling
BESTFIT TRUCK PARTS
Now: $0.15Was: $1.03Air Conditioner Orifice Tube for Automotive ReplacementOur BESTfit valves provide the same high-quality, reliable, and durable performance as factory parts. They effectively restore A/C performance by addressing restrictions or failures in components. *...Now: $0.15Was: $1.03 -
Clutch Install Kit For Fuller RT Transmission
OPP - ORIGINAL PARTS PROGRAM
$238.99Clutch Install Kit * High Quality Clutch Install Kit* For Fuller RT Series Transmissions* Includes All The Wear Items And Gaskets * Kit Includes:- S-1659 Input Shaft - 2 Inch- 14750 Retaining Ring - Inner- 16980 Retaining Ring - Outer- 81504 Bearing -...$238.99 -
32 Inch Engine Fan Blade W/ 11 Blades - Replaces 4735-44003-12
OPP - ORIGINAL PARTS PROGRAM
$298.99Engine Cooling 32 Inch Fan Blade With 2.56 Inch Pilot HoleThis Engine Fan Blade with 11 blades is a reliable choice for your engine cooling needs and replaces the factory part. It measures 32 inches in diameter and has a 2.56 inch Pilot hole. It features...$298.99 -
Clutch Brake
OPP - ORIGINAL PARTS PROGRAM
$63.23Clutch Brake * High Quality Clutch Brake* Sold Individually* Warranty On Clutch Brake Against Defects In Workmanship & Material From Date Of Purchase*** High Quality Aftermarket Replacement Part (Not OEM)***This Original Parts Program item is not...$63.23 -
3406 CAT & Detroit Block Heater 1500 Watt With Plug
OPP - ORIGINAL PARTS PROGRAM
$89.99Block Heater With Plug Fits 3406 Cat Detroit Diesel Series * High Quality Block Heater* For Use With CAT / Detroit Diesel Engine * 1500 Watt* 120 Volt* 1 Inch NPT* Sold Individually* Warranty On Block Heaters Against Defects In Workmanship & Material...$89.99 -
1500 Watt Block Heater For Cummins Signature 600 ISX & QSX
OPP - ORIGINAL PARTS PROGRAM
$94.59Block Heater * High Quality Block Heater* 1500 Watt With Plug* Plate Mount* 120 Volt* Fits Cummins Signature 600 ISX QSX * Gasket Not Included* Reuse Old Gasket* Sold Individually* Warranty On Block Heater Against Defects In Workmanship & Material From...$94.59 -
Cover Kit With Screws For Eaton-Fuller RTLO Transmissions - Replaces K2402
OPP - ORIGINAL PARTS PROGRAM
$19.42Cover Kit for Eaton-Fuller RTLO Transmissions * High Quality Cover Kit* With Screws* Replaces OEM # K2402* Sold Individually* Warranty On Cover Kit Against Defects In Workmanship & Material From Date Of Purchase*** High Quality Aftermarket Replacement...$19.42