
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 For Detroit EGR 12.7L 60 Series Engine - Replaces 23531257 & 23532542
BESTFIT TRUCK PARTS
$404.99BESTfit Water Pump For Detroit EGR 12.7L 60 Series EngineThe Water Pump listed is designed for Detroit EGR 12.7 L 60 Series engines and is sold individually. As an aftermarket replacement part (not OEM), it's essential to verify OE numbers before...$404.99 -
BESTfit Circular EGR Cooler For Cummins IL-G Engine - Replaces 5347234, 5318560 & 4376312
BESTFIT TRUCK PARTS
$800.99BESTfit Circular EGR Cooler For Cummins IL-G EngineThe Circular EGR Cooler listed is designed for Cummins IL-G engines and is sold as a kit. As an aftermarket replacement part (not OEM), it's crucial to verify OE numbers before purchasing to ensure...$800.99 -
BESTfit EGR Cooler For Detroit 60 Series Engine - Replaces 23538835, 23535288 & 23535180
BESTFIT TRUCK PARTS
$1,058.99BESTfit EGR Cooler For Detroit 60 Series EngineThe EGR Cooler is designed for Detroit Series S60 engines and is sold individually as an aftermarket replacement part, not bearing any OEM branding. Before purchasing, it's essential to verify OE numbers to...$1,058.99 -
BESTfit Oil Pan Isolator Seal Gasket For Caterpillar C15 & Late 3406E Engines
BESTFIT TRUCK PARTS
$115.99BESTfit Diesel CAT C15 & Late 3406E Oil Pan GasketThe Oil Pan Gasket/Isolation Seal is a one-piece rubber component designed for Caterpillar C15 and late 3406E engines. Sold individually as an aftermarket replacement part, it's important to verify OE...$115.99 -
BESTfit 3 Piece Exhaust Manifold Kit For Cummins NT855 Late Style, Small Cam, Big Cam, I, II, III, IV & Nt88
BESTFIT TRUCK PARTS
$399.99BESTfit Exhaust Manifold - Replaces 3801915, 3053137, 3053138 & 3052859The NT855 Exhaust Manifold kit offers comprehensive coverage, including front, center, and rear sections, along with a mounting kit for convenient installation. Designed without...$399.99 -
BESTfit AC Compressor W/ Clutch Direct Mount For Dennis Eagle 7H15
BESTFIT TRUCK PARTS
$207.99BESTfit 10 Groove AC Compressor W/ Single Wire Diode With KCA Head * High Quality AC Compressor* Direct Mount* 10 Groove 125MM Clutch* Single Wire With Diode With KCA Head* Sold Individually* Warranty On AC Compressors Against Defects In Workmanship &...$207.99 -
BESTfit 4 Inch ID X 6 Inch 4-Ply Heavy Duty Silicone Charge Air Cooler Hose
BESTFIT TRUCK PARTS
$54.05BESTfit 4 X 6 Inch Silicone Charge Air Cooler Hose -65 Degree to 500 DegreeThe Charge Air Cooler is a robust component designed for reliable performance. With a 4-inch inner diameter and 6-inch length, this blue silicone hose is specifically crafted for...$54.05 -
BESTfit Charge Air Cooler 25.5 X 24 Inch For Peterbilt 359
BESTFIT TRUCK PARTS
$1,277.99Charge Air Cooler 25.5 X 24 Inch Fits Peterbilt 359 * High Quality Charge Air Cooler* 25.50 Height* 24.00 Width* 2.25 Thick* 4.50 Inlet* 4.50 Outlet* Sold Individually* Warranty On AC Condensers Against Defects In Workmanship & Material From Date Of...$1,277.99 -
BESTfit AC Expansion Valve Replaces 3S011516 For Peterbilt 389
BESTFIT TRUCK PARTS
$17.33BESTfit AC Expansion Valve Fits Peterbilt 389 * High Quality AC Expansion Valve* A/C Expansion Valve* Sold Individually* Warranty On AC Expansion Valve Against Defects In Workmanship & Material From Date Of Purchase***High Quality Aftermarket Replacement...$17.33 -
BESTfit Evaporator Replaces 400049 & NA1015 For Peterbilt 359
BESTFIT TRUCK PARTS
$305.99BESTfit 10 X 7.625 Inch Evaporator Fits Peterbilt 359 1977-1987This BESTfit AC Evaporator Coil fits 1967 through 1987 Peterbilt 359 models. It is built to keep the inside of your cab or sleeper at its desired comfort level. With a number 8 o-ring fitting...$305.99 -
BESTfit 12V AC Compressor W/ Single Wire Ear Mount And Single Groove Clutch
BESTFIT TRUCK PARTS
$236.99BESTfit Single Wire Ear Mount AC Compressor W/ Single Groove Clutch * High Quality AC Compressor* Single Wire Ear Mount* With 1 Groove Clutch * 12V* Sold Individually* Warranty On AC Compressors Against Defects In Workmanship & Material From Date Of...$236.99 -
BESTfit 11.9L Oil Pan Replaces 4975061 & 4975062 For Cummins ISX Front & Rear Sump
BESTFIT TRUCK PARTS
$488.99BESTfit 11.9L Oil Pan Fits Cummins ISXThe 11.9L Oil Pan is tailored to fit Cummins ISX 11.9L engines, offering a universal fit suitable for both front and rear sump applications. Compatible with various truck makes and models, this oil pan ensures...$488.99