Peterbilt Truck Engine Parts
Elevate your big rig's performance with 4 State Trucks' premium Peterbilt semi truck engine parts. Boost your Peterbilt's heart with high-flow air filters and efficient fuel injectors, designed for both independent truckers and large fleets. Trust 4 State Trucks for top-quality Peterbilt semi truck engine parts that enhance reliability and power, ensuring your semi conquers every mile with confidence. Whether you're seeking routine replacements or performance upgrades, our components keep your Peterbilt semi truck running strong, making each haul smoother and more dependable.
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BESTfit Water Pump With Housing For Cummins ISX 15 Engines - Replaces 3687590
BESTFIT TRUCK PARTS
$383.99BESTfit Cummins ISX Engine Water Pump With HousingRestore optimal coolant flow in your engine with our Heavy Duty Water Pump, complete with housing for hassle-free installation. This aftermarket replacement part ensures reliable performance and...$383.99 -
BESTfit Replacement Turbocharger For Cummins B-Series Applications - Replaces 3538883, 3802882, 4033671
BESTFIT TRUCK PARTS
$369.99BESTfit Cummins B-Series Replacement TurbochargerExperience enhanced engine performance with our Heavy Duty Turbocharger designed for durability and reliability. Engineered to withstand temperatures up to 950 degrees, this turbocharger features a turbine...$369.99 -
BESTfit Water Pump For CAT 3406B, 3406C Engines - Replaces 7C4957 / 1354926
BESTFIT TRUCK PARTS
$444.99BESTfit Water Pump Fits Caterpillar 3406B, 3406C Engines With 74 Tooth 7.875 Inch Flat Gear - Replaces 1354926, 7C4957, 7C7019, OR8217Upgrade your engine's cooling system with our Water Pump, engineered for superior performance and reliability. Featuring...$444.99 -
BESTfit AC Compressor Sanden Sd5H14Hd Style W/ 1 Groove 122MM Clutch, Ear Mount For Peterbilt 378
BESTFIT TRUCK PARTS
$555.99BESTfit Sanden SD5H14HD Style AC Compressor With 1 Groove 122MM Clutch * High Quality A/C Compresser* Sd5H14Hd Style* 1 Groove* 122Mm* Clutch Ear Mount* Sold Individually* Warranty On A/C Compresser Against Defects In Workmanship & Material From Date Of...$555.99 -
BESTfit Valve Side Camshaft For Cummins ISX With Single Camshafts - Replaces 3685964, 4298629
BESTFIT TRUCK PARTS
$929.99Looking to replace your injector side camshaft? Our aftermarket replacement part is tailored for ISX model engines with a dual camshaft setup, specifically serving as an injector camshaft. With no core required, this camshaft is sold individually and...$929.99 -
BESTfit Injector Side Camshaft For Cummins ISX With Dual Camshafts - Replaces 3682142, 4101432
BESTFIT TRUCK PARTS
$1,131.99BESTfit Camshaft For Dual Camshaft Cummins ISX Engine - Injector SideLooking to replace your injector side camshaft? Our aftermarket replacement part is tailored for ISX model engines with a dual camshaft setup, specifically serving as an injector...$1,131.99 -
BESTfit Valve Side Camshaft For Cummins ISX With Dual Camshafts - Replaces 3680779, 4059170, 4059331, 4298626
BESTFIT TRUCK PARTS
$799.99BESTfit Camshaft For Dual Camshaft Cummins ISX Engine - Valve SideLooking for a replacement camshaft? Our aftermarket replacement part is precisely what you need. Designed as a dual camshaft for valve side applications in aftermarket Cummins ISX engines,...$799.99 -
BESTfit O-Ring Kit With Gaskets, Sealing Washers - 2 Of Each Size Seal
BESTFIT TRUCK PARTS
$22.43BESTfit O-Ring, Gasket & Seal Kit * High Quality O-Ring Kit * 2 Of Each Size Seal* Refrigerant Type: R12/R134A* Sold Individually* Warranty On O-Ring Kit Against Defects In Workmanship & Material From Date Of Purchase*** High Quality Aftermarket...$22.43 -
BESTfit Pressure Switch Pigtail Wire Harness W/ 2 Wire Weatherpak Connector
BESTFIT TRUCK PARTS
$32.63BESTfit 2 Wire Pigtail Pressure Switch Fits Peterbilt * High Quality Pressure Switch * 2 W Pigtail * 2 Wire Weatherpack Connector * Sold Individually* Warranty On Pressure Switch Against Defects In Workmanship & Material From Date Of Purchase*** High...$32.63 -
BESTfit AC Refrigerant PAG 100 Oil - 8 Oz.
AFTERMARKET
$14.27BESTfit 100 Viscosity PAG Oil For A/C * High Quality Oil* 8 Oz * Sold Individually* Warranty On Oil Against Defects In Workmanship & Material From Date Of Purchase*** High Quality Aftermarket Replacement Part (Not OEM)***width="1293" height="300" />$14.27 -
BESTfit 70 Amp 12V 4 Terminal Carrier Relay With Diode Protection - Replaces 10-00328-00
BESTFIT TRUCK PARTS
$27.53BESTfit 12V SPDT 70 Amp 4 Terminal Carrier Relay * High Quality Relay* Volts: 12V* Type: Spdt N.O.* Amps/Cfm/Btus: 70 Amp* Notes: 4 Terminal 2 Large 2 Small* Diode Protection: W/Diode* Sold Individually* Warranty On Relay Against Defects In Workmanship &...$27.53 -
BESTfit AC Compressor Sanden Style Single Groove 158MM Clutch With Single Wire Ear Mount
BESTFIT TRUCK PARTS
$217.99BESTfit Sanden Style AC Compressor With Single Groove 158MM Clutch & Single Wire Ear Mount * High Quality A/C Compressor* Single Groove 158MM Clutch * Single Wire Ear Mount* Sold Individually* Warranty On A/C Compressor Against Defects In Workmanship &...$217.99