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 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 -
4 Spade Engine Brake Switch Replaces K301-270, D66053216 For Kenworth T300-T450
AUTOMANN USA
$27.14Engine Brake Switch For Kenworth T300 & T450 - Replaces 8956K790 * High Quality Engine Break Switch* 4 Pin* 15/32 Inch - 32* 1.437 Inch Switch Length* 1.400 Inch From Front Plate to Pin* Sold Individually*** High Quality Aftermarket Replacement Part (Not...$27.14 -
Filter Wrench Ratcheting Chain
AUTOMANN USA
$46.91Filter Wrench Racheting Chain * High Quality Ratcheting Chain* Fits 3 Inch Thru 4.5 Inch Diameters* Sold Individually* Warranty On Ratcheting Chain Against Defects In Workmanship & Material From Date Of Purchase***High Quality Aftermarket Replacement...$46.91 -
Ignition Switch W/ 4 Position Lock Tumbler & 4 Screw Terminals For 3/4 Inch to 1 Inch Panel Hole
AFTERMARKET
$16.31Ignition Switch W/ 4 Position Lock Tumbler That Fits 3/4 Inch to 1 Inch Panel Hole * High Quality Ignition Switch* Includes: - (2) Detachable Keys - Hardware For Mounting- Four Screw Terminals* 4 Position Lock Tumbler Park On/Off Starter* Fits 3/4 Inch...$16.31 -
TD Style 1 Stud Sending Unit W/ 1/8 Inch NPTF Standard Threading
ISSPRO
$71.39Sending UnitWe offer top of the line aftermarket Isspro sender units for your big rig. This sending unit is accurate in measuring the amount of fuel in the fuel tank and communicates the fuel level to the fuel gauge on the dashboard. It comes with a...$71.39 -
On Sale
Drive Tip For Signal Generator With .203 Tang
ISSPRO
Now: $4.42Was: $14.27Signal Generator Drive TipAt Elite Truck Accessorieswe offer aftermarket Isspro drive tips for signal generators. This drive tip features a .203 tang and comes with a warranty against defects in materials and workmanship. Isspro is a trusted brand for...Now: $4.42Was: $14.27 -
On Sale
Drive Tip For Signal Generator With .187 Tang
ISSPRO
Now: $3.38Was: $25.99Signal Generator Drive TipAt 4 State Trucks, we offer aftermarket Isspro drive tips for signal generators. This drive tip features a .187 tang and comes with a warranty against defects in materials and workmanship. Isspro is a trusted brand for any and...Now: $3.38Was: $25.99