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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BESTfit Blue 1 Inch Inner Diameter Silicone Heater Hose - 25 Feet
BESTFIT TRUCK PARTS
$142.99BESTfit Blue Silicone Heater Hose - 1 Inch X 25 Feet * High Quality Heater Hose* Made Of Silicone* Blue* 1.00 Inch ID * 25 Feet* Cut To Length * Sold Individually* Warranty On Heater Hose Against Defects In Workmanship & Material From Date Of...$142.99 -
BESTfit 3 Piece Exhaust Manifold Kit For Cummins ISX - Replaces 4962571, 3682491, 3682348, 3682548, 3682959 & 3682549
BESTFIT TRUCK PARTS
$369.99BESTfit 3 Piece Exhaust Manifold Kit For Cummins ISX EnginesThe exhaust manifold described is designed for Cummins ISX engines manufactured between 2003 and 2007. It is a 3-piece set, including front, center, and rear sections, and is sold as a kit. This...$369.99 -
BESTfit 3 Piece Exhaust Manifold Kit, Turbo Mount - Medium Angled Center Section For Detroit 60 Series Engine
BESTFIT TRUCK PARTS
$359.99BESTfit Exhaust Manifold Kit With Medium Angled Center Turbo MountThe exhaust manifold provided is a quality aftermarket replacement part designed for Detroit 60 Series engines. It comes as a 3-piece kit, including the front, center, and rear sections,...$359.99 -
BESTfit AC Grilldenser For Peterbilt 359
BESTFIT TRUCK PARTS
$807.99BESTfit AC Grilldenser Fits Peterbilt 359 1979-1986 * High Quality AC Condenser* Measurement - 26.00 Height - 36.750 Inch Width- 1.00 Inch Thick* Number 8 and Number 6 Fittings* Warranty On Condensers Against Defects In Workmanship & Material From Date...$807.99 -
BESTfit Oil Pan Gasket For Caterpillar 3406 Engines
BESTFIT TRUCK PARTS
$28.99BESTfit Oil Pan GasketEnsure a secure seal for your Caterpillar engines 3406A, 3606B, 3406C, and 3406E with our Oil Pan Gasket. Compatible with pan numbers 09-074N919 and 09-077C3236, this gasket is designed to prevent leaks and maintain optimal engine...$28.99 -
BESTfit Complete Caterpillar 3406A, 3406B & 3406C Exhaust Manifold - 3 Piece
BESTFIT TRUCK PARTS
$413.99BESTfit Complete Exhaust Manifold Fits CaterpillarEnhance your Caterpillar 3406A, B, or C engine with our premium aftermarket replacement manifold, meticulously crafted from a combination of cast iron and stainless steel. This three-piece manifold is...$413.99 -
BESTfit Oil Pan Cast Aluminum For Caterpillar 3406 Pre-1985
BESTFIT TRUCK PARTS
$805.99BESTfit Oil Pan For CAT 3406A & 3406BThe "Aluminum Oil Pan" is designed to fit CAT 3406 A or B engines manufactured in June 1986 and earlier. It has a universal fit for both front and rear sump applications and can hold up to 7 gallons of oil. Please...$805.99 -
TPHD 1.875 Inch Oil Filler Cap With Chain For CAT
TPHD
$21.31Oil Filler Cap Fits CATUpgrade your vehicle's fuel system with our quality Cap, complete with a convenient chain for secure closure. This aftermarket replacement part has a diameter of 1.875 inches, ensuring compatibility with various applications. Sold...$21.31 -
BESTfit Size 8 Fuel Check Valve For 12.7L Detroit Diesel Engine
BESTFIT TRUCK PARTS
$61.19BESTfit Size 8 12.7L Detroit Diesel Engine Fuel Check Valve * High Quality Fuel Check Valve* Sold Individually* Warranty On Fuel Check Valves Against Defects In Workmanship & Material From Date Of Purchase.*** High Quality Aftermarket Replacement Part...$61.19 -
APU Shock Pad
RIGMASTER
$17.33RigMaster APU Shock PadNeed a reliable shock pad? This aftermarket replacement shock pad is sold individually and designed to absorb shocks and reduce vibrations. As a cost-effective alternative to OEM parts, it meets industry standards for quality and...$17.33 -
RigMaster Alternator / Fan V-Belt For Caterpillar And Perkins Engine LG200
RIGMASTER
$9.17RigMaster APU Alternator / Fan V-Belt For Caterpillar, Perkins LG200Need a reliable alternator/fan belt? This aftermarket replacement belt is sold individually and designed to provide dependable performance for your alternator and fan systems. As a...$9.17 -
RigMaster Sub-Frame Kit For T46K Units With Or Without Heat
RIGMASTER
$522.99RigMaster APU Sub-Frame Kit For T46K UnitsNeed a sub frame kit for your T46K units? This aftermarket replacement sub frame kit is compatible with both heated and non-heated models and is sold individually. As a cost-effective alternative to OEM parts, it...$522.99