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 Flywheel Housing For Paccar MX13 Diesel Engine Trucks
BESTFIT TRUCK PARTS
$1,294.99BESTfit Paccar MX13 Flywheel HousingEnhance the performance of your aftermarket Paccar MX13 diesel engine truck with our Flywheel Housing. Specifically designed to fit SAE #1 specifications, this component ensures a seamless fit and reliable. Sold...$1,294.99 -
BESTfit Water Pump For Paccar MX13 Diesel Engine Trucks
BESTFIT TRUCK PARTS
$319.99BESTfit Paccar MX13 Water PumpUpgrade your vehicle's cooling system with our Water Pump, a reliable aftermarket replacement part designed to meet your automotive needs. Sold individually for your convenience, this water pump ensures optimal performance...$319.99 -
BESTfit Exhaust Manifold Kit, End Section For Paccar MX13 Diesel Engine Trucks
BESTFIT TRUCK PARTS
$477.99BESTfit Exhaust Manifold Kit To Replace End SectionEnhance your vehicle's exhaust system with our Exhaust Manifold Kit, featuring a center section and two end sections for comprehensive installation. Crafted as an aftermarket replacement part, each...$477.99 -
BESTfit Flywheel For Paccar MX13
BESTFIT TRUCK PARTS
$749.99BESTfit Aftermarket Paccar MX13 Flywheel W/ 12 Mounting Holes, 3 Dowel Pin Holes, 10 Inch Bore Opening, Ring GearUpgrade your engine's performance with our Flywheel, boasting a 10-inch bore opening, 12 mounting holes, and 3 dowel pin holes for seamless...$749.99 -
BESTfit Aluminum Rear Sump Engine Oil Pan W/ Drain Plugs & Side Ports
BESTFIT TRUCK PARTS
$976.99BESTfit Sump Engine Oil Pan W/ 10 Mounting BoltsUpgrade your engine's oil management with our Sump Engine Oil Pan, crafted from durable aluminum with a sleek gray finish. This comprehensive kit includes drain plugs measuring 0.75 x 14.00 inches, side...$976.99 -
BESTfit Exhaust Manifold Kit, 3 Piece Late Style Big Cam / Small Cam Engines For Cummins NT855
BESTFIT TRUCK PARTS
$413.99BESTfit Exhaust Manifold Kit W/ Front Center & Rear SectionsUpgrade your exhaust system with our Exhaust Manifold Kit, designed to replace the 2-piece style manifold. This comprehensive kit includes front, center, and rear manifold sections along with a...$413.99 -
BESTfit Blue Hump Hose, 4 Inch I.D. x 8 Inch Length
BESTFIT TRUCK PARTS
$41.81BESTfit Blue Hump Hose For Charge Air Cooler Connections * High Quality Hump Hose* Blue* 4 Inch Id X 8 Inch Length* For Charge Air Cooler Connections* Made In USA* Sold Individually* Warranty On Hump Hoses Against Defects In Workmanship & Material From...$41.81 -
On Sale
BESTfit AC Compressor W/ 8 Groove 119MM Clutch, Single Male Packard Plug - Replaces A6110032-001, 4028, 4420
BESTFIT TRUCK PARTS
Now: $33.30Was: $221.99BESTfit AC Compressor W/ 8 Groove 119MM Clutch * High Quality A/C Compressor* With 8 Groove 119 MM Clutch * Multifit Application With A Single Male Packard Plug * With Single Male Bullet Connector * Sold Individually * Warranty On A/C Compressor...Now: $33.30Was: $221.99 -
BESTfit Sanden Style Ear Mount AC Compressor W/ 8 Groove 119MM Pulley
BESTFIT TRUCK PARTS
$182.99BESTfit AC Compressor Sanden Style Ear Mount W/ 8 Groove 119MM Pulley This high-quality A/C compressor features an ear mount and a Sanden-style design. It comes equipped with an 8-groove 119mm pulley for efficient operation. * High Quality A/C...$182.99 -
BESTfit Exhaust Manifold Replaces 23516107 For Detroit Series 60 12.7L EGR
BESTFIT TRUCK PARTS
$534.99BESTfit Exhaust Manifold Fits Detroit Series 60 12.7LUpgrade your Detroit Series 60 engine with our Exhaust Manifold designed specifically for the 12.7L EGR model. Crafted for precision fitment and optimal performance, this aftermarket replacement part...$534.99 -
BESTfit Steel Oil Pan Replaces 3944258, 3974294 & 3948611 For Cummins ISL Engines
BESTFIT TRUCK PARTS
$189.99BESTfit Steel Oil Pan Fits Cummins ISL EnginesUpgrade your Cummins ISL engine with our Steel Oil Pan. Crafted to exact specifications, this aftermarket replacement part ensures reliable performance and durability. Engineered for a precise fit, it...$189.99 -
BESTfit 20 Inch OD Flywheel W/ 113 Teeth For CAT 3306, 3406B, 3406E Engines
BESTFIT TRUCK PARTS
$402.99BESTfit Flat Flywheel W/ 10 Inch Opening, 12 Bolt Holes, 1 Dowel Pin Hole For 15 Inch ClutchEnhance your vehicle's performance with our aftermarket Flywheel. Featuring a robust construction, this flywheel boasts a diameter of 20 inches, a 15-inch clutch,...$402.99