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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Water Pump W/ Dome Drive Gear & Straight Teeth For CAT C15 Engine
AKMI
$420.99Dome Drive Gear Water Pump, Replaces 1610969 * High Quality Water Pump* Dome Drive Gear * With Straight Teeth* Bolt On Gear* Made In USA* Sold Individually* Warranty On Water Pumps Against Defects In Workmanship & Material From Date Of Purchase*** High...$420.99 -
On Sale
Nitrogen Oxide Sensor, Replaces BA036754C For Cummins
INQBRANDS
Now: $78.40Was: $252.8912V Cummins NOX Sensor With 35.03 Inch Lead * High Quality Nitrogen Oxide Sensor* With 35 Inch Lead* 24 Volt* Sold Individually* Warranty On Nitrogen Oxide Sensors Against Defects In Workmanship & Material From Date Of Purchase*** High Quality...Now: $78.40Was: $252.89 -
On Sale
Nitrogen Oxide Sensor, Replaces BA026673A For Cummins
TPHD
Now: $77.78Was: $250.8912V Cummins NOX Sensor With 23.228 Inch Lead * High Quality Nitrogen Oxide Sensor* With 23 Inch Lead* 12 Volt* Sold Individually* Warranty On Nitrogen Oxide Sensors Against Defects In Workmanship & Material From Date Of Purchase*** High Quality...Now: $77.78Was: $250.89 -
On Sale
Nitrogen Oxide Sensor, Replaces BA037338A For Mercedes-Benz, Detroit Diesel
INQBRANDS
Now: $78.40Was: $252.8912V Mercedes NOX Sensor With 16.5 Inch Lead * High Quality Nitrogen Oxide Sensor* With 16 1/2 Inch Lead* 12 Volt* Sold Individually* Warranty On Nitrogen Oxide Sensors Against Defects In Workmanship & Material From Date Of Purchase*** High Quality...Now: $78.40Was: $252.89 -
On Sale
Nitrogen Oxide Sensor, Replaces BA037339A For Mercedes-Benz, Detroit Diesel
INQBRANDS
Now: $77.47Was: $249.8912V Mercedes NOX Sensor With 28.74 Inch Lead * High Quality Nitrogen Oxide Sensor* With 28.74 Inch Lead* 12 Volt* Sold Individually* Warranty On Nitrogen Oxide Sensors Against Defects In Workmanship & Material From Date Of Purchase*** High Quality...Now: $77.47Was: $249.89 -
On Sale
Nitrogen Oxide Sensor, Replaces BA037341A For Mercedes-Benz, Detroit Diesel
INQBRANDS
Now: $78.40Was: $252.8912V Mercedes NOX Sensor With 17.5 Inch Lead * High Quality Nitrogen Oxide Sensor* With 17 1/2 Inch Lead* 12 Volt* Sold Individually* Warranty On Nitrogen Oxide Sensors Against Defects In Workmanship & Material From Date Of Purchase*** High Quality...Now: $78.40Was: $252.89 -
On Sale
Nitrogen Oxide Sensor, Replaces 22303390 For Mack, Volvo
INQBRANDS
Now: $175.62Was: $250.8912V Mack/Volvo NOX Sensor With 23.228 Inch Lead * High Quality Nitrogen Oxide Sensor* With 23 Inch Lead* 12 Volt* Sold Individually* Warranty On Nitrogen Oxide Sensors Against Defects In Workmanship & Material From Date Of Purchase*** High Quality...Now: $175.62Was: $250.89 -
Oil Cooler, Replaces 2237962 For Caterpillar C15
AKMI
$841.99Cat C15 Oil Cooler * High Quality Oil Cooler* Shell And Tube Style * Oil To Water Cooler* Avoids The Risk Of Overheated Oil* Sold Individually* Warranty On Oil Coolers Against Defects In Workmanship & Material From Date Of Purchase*** High Quality...$841.99 -
High Mount Exhaust Manifold For Caterpillar C15
AKMI
$546.99Caterpillar C15 Exhaust Manifold W/ High Mount * High Quality Exhaust Manifold* Includes:- Center Section - End Section * High Mount* Mounting Kit Not Included* For Diesel Engine Trucks * Sold Individually* Warranty On Exhaust Manifolds Against Defects...$546.99 -
Low Mount Exhaust Manifold For Caterpillar C15
AKMI
$546.99Caterpillar C15 Exhaust Manifold W/ Low MountThis is an aftermarket Caterpillar C15 Low Mount Exhaust Manifold. Mounting hardware is not included. * High Quality Exhaust Manifold* Includes- Center Section- End Section * Low Mount* Mounting Kit Not...$546.99 -
Exhaust Manifold Replaces 20738332 For Volvo D13 & Mack MP8 EGR
AKMI
$468.99Volvo & Mack Exhaust ManifoldThis Exhaust Manifold fits in your Aftermarket Volvo D13 and Mack MP8 EGR Diesel Engine Trucks. Find high quality replacement parts at 4 State Trucks! * High Quality Exhaust Manifold* Includes - Center Section- End Section-...$468.99 -
Gasket For Power Steering Reservoir- NMCQ79699, Q79699, FGQ79699
AUTOMANN USA
$3.36Replacement Cover Gasket for Power Steering ReservoirLooking for a gasket for your power steering reservoir? Our reliable gasket ensures a perfect seal, preventing leaks and keeping your power steering system in top shape! * High Quality Gasket Power...$3.36