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 Electric Fan Clutch For Mack CH, GU7, FE-PTO, MP7, MP8, Volvo VHD, D11, D13
BESTFIT TRUCK PARTS
$1,803.99BESTfit Electric Fan Clutch Fits Mack & Volvo * High Quality Fan Clutch* 5 Pin* 11.00 Inch* 6.515 Inch Width* Sold Individually* Warranty On Fan Clutchs Against Defects In Workmanship & Material From Date Of Purchase*** High Quality...$1,803.99 -
BESTfit AC Compressor SD7H15HD W/ 6 Groove Clutch
BESTFIT TRUCK PARTS
$221.99BESTfit AC Compressor W/ 6 Groove Clutch * High Quality AC Compressor* 6 Groove 125MM Clutch* Single Wire* OEM Number Inch S 5513025, 6513025, 7513025, 82016157, 2004328, And 4328 C2298Sr* Sold Individually* Warranty On AC Compressors Against Defects In...$221.99 -
BESTfit Flywheel Replaces 530GB3170M For Mack E7 & E-Tech Engines
BESTFIT TRUCK PARTS
$373.99BESTfit Flywheel With 10 Inch Center Opening, Timing Marks & 6 Bolt HolesThe described flywheel is designed for Mack E7 E-Tech applications. It features a flat design suitable for a 15-inch, 9-spring clutch, with a Size SAE #1 configuration and a 10-inch...$373.99 -
BESTfit Flywheel For Caterpillar 3176, C10, C12 & C13 Engines - Replaces 4P8515
BESTFIT TRUCK PARTS
$501.99BESTfit Flywheel With 10 Inch Center Opening & 8 Bolt HolesThe described flywheel is intended for use with Caterpillar 3176, C10, C12, and C13 engines. It features a flat design suitable for a 15-inch clutch, with a Size SAE #1 configuration and a...$501.99 -
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 Front Sump Steel Oil Pan - Replaces 3800906, 3803688, 3803849 & More For Cummins L10, M11 & ISM Engines
BESTFIT TRUCK PARTS
$701.99BESTfit Front Sump Steel Oil Pan W/ 22 Bolt HolesThe Oil Pan is specifically designed for Cummins L10, M11, and ISM engines with a front sump configuration. Constructed from stamped steel, this oil pan comes with an included oil pan mounting gasket for...$701.99 -
BESTfit Oil Pan Replaces 3892965, 3895628, 3895630 & More For Cummins L10, M11 & ISM Engines
BESTFIT TRUCK PARTS
$399.99BESTfit Rear Sump Steel Oil PanThe oil pan described is designed for rear sump applications in Cummins L10, M11, and ISM engines. It features a stamped steel construction and comes with an internal oil pick-up tube and an oil pan mounting gasket. Sold...$399.99 -
BESTfit Camshaft For Cummins N14 Celect Plus - Replaces 3411327 & 4024849
BESTFIT TRUCK PARTS
$711.99BESTfit Camshaft For Cummins N14 Celect PlusThe camshaft offered is compatible with Cummins N14 Celect Plus engines and is sold individually as an aftermarket replacement part. It replaces OE numbers 3411327 and 4024849. Before purchasing, it's...$711.99 -
BESTfit Flywheel For Cummins ISX Engine With 15 Inch Clutch - Replaces 3680921, 3680922 & 3680348
BESTFIT TRUCK PARTS
$325.99BESTfit Flywheel With 10 Inch Center Opening & 12 Bolt HolesThe offered flywheel is designed for Cummins ISX engines, featuring a flat design suitable for 15-inch clutches. It conforms to SAE #1 size standards with a 10-inch center opening and 12 bolt...$325.99 -
BESTfit 3 Piece Exhaust Manifold Kit For Cummins IX Pre-EGR - Replaces 3680650, 3680199 & 3680200
BESTFIT TRUCK PARTS
$359.993 Piece Exhaust Manifold Kit For Cummins IX Pre-EGRThe exhaust manifold offered is a three-piece aftermarket replacement intended for Cummins IX engines manufactured before the implementation of EGR systems. Featuring a slip-fit design, this kit...$359.99 -
BESTfit 3 Piece Exhaust Manifold Kit For Cummins N14 Engine - Replaces 3078322, 3078323 & 3078324
BESTFIT TRUCK PARTS
$399.99BESTfit 3 Piece Exhaust Manifold Kit For Cummins N14 1995 & NewerThe exhaust manifold provided is a three-piece aftermarket replacement designed for Cummins N14 engines manufactured from 1995 onwards. This kit consists of the front, center, and rear...$399.99 -
BESTfit 3 Piece Exhaust Manifold Kit, Turbo Mount - High / Flat Center Section For Detroit 60 Series Engine
BESTFIT TRUCK PARTS
$465.99BESTfit Exhaust Manifold Kit With High & Flat Center Turbo MountThe exhaust manifold listed is specifically designed for Detroit 60 Series engines. It comes as a 3-piece aftermarket kit, comprising the front, center, and rear sections. Notably, this kit...$465.99