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 Compressor York Style Without Clutch Replaces ET210L-25150 For Freightliner
BESTFIT TRUCK PARTS
$256.99BESTfit AC Compressor Without Clutch * High Quality Compressor* Without Clutch York* Tube-O Fittings LH Suction* Sold Individually* Warranty On AC Compressors Against Defects In Workmanship & Material From Date Of Purchase*** High Quality Aftermarket...$256.99 -
BESTfit Aluminum Oil Pan W/ Front Sump - Replaces 23522282 For Detroit 60 Series
BESTFIT TRUCK PARTS
$1,030.99BESTfit Detroit Series 60 Oil Pan With Front SumpThe Aluminum Oil Pan is designed for Detroit 60 Series 14.0 Liter DDEC4 engines, featuring a front sump configuration for efficient oil management. This aftermarket replacement part includes mounting bolts...$1,030.99 -
BESTfit Water Pump For Cummins L10 & M11 With 3 Bolt Design
BESTFIT TRUCK PARTS
$227.99Cummins L10 & M11 BESTfit Water PumpThe Water Pump is compatible with Cummins L10 and M11 engines with a 3-bolt design from 1991 onwards, as well as IHC 8100 & 2000 models. Sold individually, this aftermarket replacement part ensures reliable performance...$227.99 -
BESTfit AC Compressor For Freightliner, Kenworth & International
BESTFIT TRUCK PARTS
$351.99BESTfit AC Compressor Fits Freightliner, Kenworth & International * High Quality AC Compressor* York Tube-O Style * With Clutch* 8 Groove Pulley* Sold Individually* Warranty On AC Compressor Against Defects In Workmanship & Material From Date Of...$351.99 -
BESTfit AC Compressor Clutch 12 Volt York Style With 1 Wire
BESTFIT TRUCK PARTS
$165.99BESTfit AC Clutch York Style 6 Inch Diameter * High Quality AC Clutch* York Style* 6 Inch Diameter* A1 Groove* 1 Wire* 12 Volt* Key Shaft* 3 Inch MD* Sold Individually* Warranty On AC Clutches Against Defects In Workmanship & Material From Date Of...$165.99 -
BESTfit 125MM AC Compressor Sanden SD7H13 2 Groove Replaces APBN83304101 For Freightliner & Mack
BESTFIT TRUCK PARTS
$203.99BESTfit AC Compressor Fits Freightliner And Mack * High Quality Compressor* 2 Grooves* Sold Individually* Warranty On AC Compressors Against Defects In Workmanship & Material From Date Of Purchase*** High Quality Aftermarket Replacement Part (Not...$203.99 -
BESTfit AC Compressor With 2 Groove Clutch Direct Mount For Freightliner, Kenworth & Peterbilt
BESTFIT TRUCK PARTS
$204.99BESTfit Direct Mount AC Compressor With Clutch Fits Freightliner/Kenworth/Peterbilt * High Quality AC Compressor With Clutch* 2 Grooves* 2 Wire Male Spade Connectors* 12 Volt* Direct Replacement* JD Head* Port Size 0.75 And 0.875* Sold Individually*...$204.99 -
BESTfit 2.5 Inch Flexible Coolant Hose
BESTFIT TRUCK PARTS
$92.81BESTfit Flexible Coolant HoseLooking for a specialty coolant hose? Our coolant hose is designed with a 2.50-inch inside diameter and a 2.82-inch outside diameter, making it suitable for various applications. With a length of 8.50 inches, it's reinforced...$92.81 -
BESTfit Water Pump For Cummins ISX 15L With 12 Groove Pulley
BESTFIT TRUCK PARTS
$225.99BESTfit 12 Groove Pulley Water PumpLooking for a water pump for your Cummins ISX? Our water pump comes with a 12-groove pulley and is brand new, so you don't need to return your old one. It's sold individually and is a replacement part, not made by the...$225.99 -
On Sale
BESTfit Coolant Flex Hose Heavy Duty Silicone 2.5 ID X 36 Inch
BESTFIT TRUCK PARTS
Now: $39.96Was: $443.99BESTfit 2.50 ID X 36 Inch Heavy Duty Silicone Coolant Flex HoseLooking for a good coolant hose? Our silicone coolant hose is strong and flexible. It's 2.50 inches wide inside and 2.92 inches wide outside, and it's 36 inches long. It can bend up to 6...Now: $39.96Was: $443.99 -
On Sale
BESTfit 3.75 Inch X 3 Foot Charge Air Cooler Hose
BESTFIT TRUCK PARTS
Now: $39.00Was: $194.99BESTfit Charge Air Cooler HoseIntroducing the Charge Air Cooler Hose, a crucial component for your vehicle's cooling system. With a diameter of 3.75 inches and a length of 3 feet, this hose is designed to ensure optimal airflow and cooling efficiency...Now: $39.00Was: $194.99 -
BESTfit Coolant Hose 90 Degree
BESTFIT TRUCK PARTS
$76.49BESTfit Coolant Hose 90 DegreeIntroducing the Coolant Hose: a 90-degree elbow designed for durability and performance. With a diameter of 2.5 inches and a length of 10 inches, it features a tighter bend radius than most other elbows, ensuring efficient...$76.49