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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Injector Harness Dozer Kit for Cummins Engines
JML KUSTOMS
$16.48Durable and Reliable Injector Harness for Optimal Engine PerformanceEnsure optimal performance and reliability of your Cummins engine with our Injector Harness Dozer Kit. Designed for durability and efficiency, this kit is essential for maintaining your...$16.48 -
Oil Pressure Sensor for Mercedes-Benz - Replaces A0071530828, A0111539228
AUTOMANN USA
$37.38Accurate Oil Pressure Monitoring for Mercedes-Benz EnginesKeep your engine's oil pressure in check with this durable oil pressure sensor, designed specifically for Mercedes-Benz vehicles. It replaces multiple OEM part numbers, ensuring reliable...$37.38 -
Air Brake Pressure Sensor (0-150 PSI) for Kenworth and Peterbilt Trucks - Replaces OE #2CP90-10
AUTOMANN USA
$54.80Ensure Precise Air Pressure Monitoring for Optimal Brake PerformanceMaintain the safety and efficiency of your Kenworth or Peterbilt truck's braking system with this air brake pressure sensor. Designed to provide accurate air pressure readings, this...$54.80 -
Fuel Pressure Sensor for Detroit Diesel DD13 & DD15 Engines - Replaces OE # A0081534828
AUTOMANN USA
$49.16Reliable Fuel Monitoring for Optimal Engine PerformanceMaintain precise fuel pressure regulation with this fuel pressure sensor, designed for Detroit Diesel DD13 and DD15 engines. This sensor helps optimize fuel injection, prevent filter clogging, and...$49.16 -
Front Oil Seal For Diesel Engine - 198636090
RIGMASTER
$31.96RigMaster Front Oil Seal For Caterpillar, Perkins EnginesLooking for a reliable front oil seal? This aftermarket replacement oil seal is sold individually and designed to prevent leaks and maintain optimal performance. As a cost-effective alternative to...$31.96 -
Rear Oil Seal For Diesel Engine - 198636080
RIGMASTER
$92.96RigMaster Rear Oil Seal For Caterpillar, Perkins EnginesNeed a durable rear oil seal? This aftermarket replacement oil seal is sold individually and designed to effectively prevent leaks and ensure optimal performance. As a cost-effective alternative to...$92.96 -
On Sale
2 3/4 Inch Long Diesel Glow Plug - 185366220
RIGMASTER
Now: $56.99Was: $81.42RigMaster Diesel Glow Plug 2 3/4 Inch For Caterpillar, Perkins EnginesLooking for a reliable glow plug? This aftermarket replacement glow plug, measuring 2 3/4 inches in length, is sold individually. Designed as a cost-effective alternative to OEM parts,...Now: $56.99Was: $81.42 -
12 Volt 60 Amp Alternator - 185046470
RIGMASTER
$222.99RigMaster 12 Volt 60 Amp Alternator For Caterpillar, Perkins EnginesLooking for a dependable alternator? This aftermarket replacement alternator is rated at 60 amps and operates at 12 volts. Sold individually, it provides a cost-effective alternative to...$222.99 -
Crankcase Pressure Sensor For Volvo D12/D13 Engines - Replaces OE # 21634017, 21746206
AUTOMANN USA
$41.67Crankcase Pressure Sensor Enables Accurate Monitoring for Optimal Engine PerformanceEnsure optimal engine performance with this crankcase pressure sensor designed for Volvo D12 and D13 engines. It provides real-time monitoring of crankcase pressure,...$41.67 -
Direct Supply Option Fuel Pressure Sensor For Volvo - Replaces OE #0281002937 20792328
AUTOMANN USA
$61.87Replacement DSO pressure sensorEnsure optimal performance with the DSO pressure sensor designed for Volvo engines. This high-pressure fuel rail sensor is a direct OE replacement, ensuring precise fuel pressure regulation for improved fuel economy and...$61.87 -
Turbocharger Boost Sensor For Mack Models - Replaces OE #64MT2101, 20706228
AUTOMANN USA
$52.52Reliable Turbocharger Boost SensorEnsure accurate turbo boost readings with this reliable turbocharger boost sensor. Designed to monitor the boost pressure in your engine's turbo system, it plays a crucial role in maintaining engine performance and...$52.52 -
Cummins Medium Control Air Compressor Outlet Boost Pressure Sensor For Mack - Replaces OE #64MT446A, 25100873
AUTOMANN USA
$52.50Mack CMCAC Outlet Boost Pressure SensorMaintain optimal engine performance with the CMCAC outlet boost pressure sensor. This sensor accurately measures the boost pressure within your turbocharger system, ensuring efficient performance and fuel delivery...$52.50