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 12V Electric Heater Valve Replaces MA1685 For Peterbilt, Kenworth
BESTFIT TRUCK PARTS
$234.99BESTfit Electric Operated Heater Valve With 5/8 Inch Outlet Fits PACCAR * High Quality Electric Heater Valve* 12 Volts* 5/8 Inch * New Style Valve Effective 2014* Sold Individually* Warranty On Electric Heater Valves Against Defects In Workmanship...$234.99 -
BESTfit High Pressure Switch 300 PSI Open, 200 PSI Close - Replaces 404141
BESTFIT TRUCK PARTS
$47.93BESTfit High Pressure Switch With Wire Harness & Female 1/4 Inch Thread * High Quality High Pressure Switch* Application: Multi Fit Applications* Description: High Pressure Switch -Nc* Wire Type: With Harness* Type Of Operation: N.C...$47.93 -
BESTfit Binary Switch With 2 Terminals, High 270/120, Low 15/40 - Replaces RD5-4640-0
BESTFIT TRUCK PARTS
$63.03BESTfit Female Binary Switch For Red Dot Applications With 2 Terminals * High Quality Binary Switch* Manufacturer: Red Dot* Application: Red Dot - Multi Applications* Description: Binary Switch: Female* Type Of Operation: High= 270/120 Low=15/40*...$63.03 -
BESTfit 12V Low Pressure Switch With Wire Harness - Replaces RD5-6395-1
BESTFIT TRUCK PARTS
$61.19BESTfit Low Pressure Switch With 1/4 Inch Female Thread * High Quality Low Pressure Switch* 12 Volts* Low Pressure Switch* With Harness* Type Of Operation: - Close-35 PSI - Open-15 PSI* Refrigerant Type R12/R134A* Sold Individually* Warranty On...$61.19 -
BESTfit Sanden 4405 AC Compressor With 119MM 10 Groove Clutch, Serpentine Belt, Vertical Port
BESTFIT TRUCK PARTS
$438.99BESTfit 12V 10 Groove AC Compressor With Vertical Port, 7 Cylinders, W/ Diode Protection & Long Key Shaft * High Quality AC Compressor And Clutch* 12 Volts* 10 Groove* 119 MM Clutch Diameter* Serpentine Belt Type* 7 Cyle Cylinders* Fitting Style: Male...$438.99 -
BESTfit York Style AC Compressor With 6.125 Inch Diameter 8 Groove Clutch - Replaces ET210L-25246C
BESTFIT TRUCK PARTS
$641.99BESTfit 12V 8 Groove AC Compressor With Tube-O Head, Serpentine Belt, 2 Cylinders & Keyed ShaftThe BESTfit 12V 8 Groove AC Compressor is a high-quality and reliable component that will keep your air conditioning system running smoothly. This compressor...$641.99 -
BESTfit York Style AC Compressor With 6 Inch Diameter Clutch, 2 Grooves, Two 1/2 Inch Belts
BESTFIT TRUCK PARTS
$531.99BESTfit 12V AC Compressor With 2 Cylinders, Tube-O Head, LH Suction Port & Keyed Shaft * High Quality AC Compressor And Clutch* 12 Volts* 2 Groove* 6 Inch Clutch Diameter* (2) 1/2 Inch Belt Type* 2 Cycle Cylinders* Tube-O 1 X 14 Fitting Style* Tube-O...$531.99 -
BESTfit Sanden 4627 AC Compressor With 125MM 2 Groove Clutch, Two 1/2 Inch Belts, Long Key Shaft
BESTFIT TRUCK PARTS
$366.99BESTfit 12V 2 Groove AC Compressor With 7 Cylinders, Vertical Port & JD Head Type * High Quality AC Compressor And Clutch* 12 Volts* 2 Groove* 125 MM Clutch Diameter* (2) 1/2 Inch Belt Type* 7 Cyle Cylinders* Fitting Style: Male Insert O-Ring #8 And #10*...$366.99 -
BESTfit Sanden 4626 AC Compressor With 132MM 2 Groove Clutch, Two 1/2 Inch Belts
BESTFIT TRUCK PARTS
$386.99BESTfit 12V 2 Groove AC Compressor With 7 Cylinders, Vertical Port & Long Key Shaft * High Quality AC Compressor And Clutch* 12 Volts* 2 Groove* 132 MM Clutch Diameter* (2) 1/2 Inch Belt Type* 7 Cyle Cylinders* Fitting Style: Male Insert O-Ring #8 And...$386.99 -
BESTfit York Style AC Compressor With 2 Groove Clutch, Two 1/2 Inch Belts, Tube-O Head Type
BESTFIT TRUCK PARTS
$555.99BESTfit 12V 2 Groove AC Compressor With 2 Cylinders, Keyed Shaft, Diode Protection & LH Suction Port * High Quality AC Compressor And Clutch* 12 Volts* 2 Groove* 6 Inch Clutch Diameter* (2) 1/2 Inch Belt Type* 2 Cycle Cylinders* Tube-O 1 X 14 Fitting...$555.99 -
BESTfit Sanden 4646 AC Compressor With 132MM 2 Groove Clutch, Two 1/2 Inch Belts, Long Key Shaft
BESTFIT TRUCK PARTS
$380.99BESTfit 12V 2 Groove AC Compressor With 7 Cylinders, Horizontal Port & Diode Protection * High Quality AC Compressor And Clutch* 12 Volts* 2 Groove* 132 MM Clutch Diameter* (2) 1/2 Inch Belt Type* 7 Cyle Cylinders* Tube-O 1 X 14 Fitting Style* MDA Head...$380.99 -
BESTfit Sanden 4666 AC Compressor With 119MM 8 Groove Clutch, Horizontal Port, Long Key Shaft
BESTFIT TRUCK PARTS
$381.99BESTfit 12V AC Compressor With 1 Wire Male Bullet, Serpentine Belt, 7 Cylinders * High Quality AC Compressor And Clutch* 12 Volts* 8 Groove* 119 MM Clutch Diameter* Serpentine Belt Type* 7 Cyle Cylinders* Fitting Style: Male Insert O-Ring #8 And #10* KC...$381.99