
Peterbilt 567/579 Parts
Find the best Peterbilt 579 aftermarket and custom parts in the business here at 4 State. The Peterbilt 579 semi truck is a solid and stately big rig designed for the needs of modern American truckers. Like other Peterbilt models, the 579 delivers on durability, reliability, safety, and comfort, so it rides like a dream for miles on end. What sets the Pete 579 model apart is the addition of features like cutting-edge integrated technology in-cab and an aerodynamic design optimized for fuel efficiency. Take your Peterbilt 579 to the next level and show off your personality with help from 4 State Trucks. From bumpers to exhaust to fenders and beyond, we have the best custom parts and aftermarket accessories for your Peterbilt big rig.
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BESTfit AC Compressor 12 Volt Ear Mount With 2 Groove Clutch For Peterbilt & Freightliner
BESTFIT TRUCK PARTS
$189.99BESTfit 12 Volt AC Compressor 5.20 Inch Diameter Ear Mount Type With 2 Grooves Fits Peterbilt/Freightliner * High Quality AC Compressor* 2 Wire Male Spade Connector* 2 Grooves* R134A Refrigerant* 12 Volt* Ear Mount Type* 1.56 Inch Gauge Line* 5.20 Inch...$189.99 -
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 Suspension Air Bag - Replaces W01-358-9644
BESTFIT TRUCK PARTS
$157.99BESTfit Suspension Air BagIntroducing our suspension air bag, boasting impressive load capacities at both 80 and 100 PSI, along with a compact design for your truck's needs. With a CPM of 71 and a design height of 13 inches, this air bag provides...$157.99 -
BESTfit AC Compressor FS6 Assembly Replaces E6HZ-19703A
BESTFIT TRUCK PARTS
$264.99BESTfit AC Compressor Assembly Replaces E6HZ-19703A * High Quality Compressor Assembly* Factory Installed A/C* Sold Individually* Warranty On AC Compressors Against Defects In Workmanship & Material From Date Of Purchase*** High Quality Aftermarket...$264.99 -
BESTfit AC Compressor With Pulley SD7H15HD Style Assembly Replaces F69-1015-151 For Peterbilt & Kenworth
BESTFIT TRUCK PARTS
$190.99BESTfit AC Compressor With Pulley Fits Peterbilt & Kenworth * High Quality AC Compressor* 7 Grooves* 12 Voltage* 0.70 Inch Suction Port* 1.82 Inch Gauge Line* 0.47 Inch Discharge Port* 5.0 Inch Clutch Diameter* Direct Mount 2 Wire Hook Up* Sold...$190.99 -
BESTfit 1/2 Inch Nylon Fiber Reinforced Premium Heater Hose
BESTFIT TRUCK PARTS
$6.39BESTfit Premium Heater Hose Nylon Fiber ReinforcedDo you have a project requiring 1/2 inch heater hose? Elite Truck Accessorieshas what you need including 1/2 inch silicone heater hose with 1-ply nylon fiber reinforcement with a thicker wall for higher...$6.39 -
BESTfit 3/4 Inch Nylon Fiber Reinforced Premium Heater Hose
BESTFIT TRUCK PARTS
$6.39BESTfit Premium Heater Hose Nylon Fiber ReinforcedAre you in the market for heater hose? Let Elite Truck Accessoriesassist you with finding the hose you need including 3/4 inch silicone premium heater hose with 1-ply of nylon fiber reinforcement, thicker...$6.39 -
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 Coolant Flex Hose Heavy Duty Silicone 2.5 ID X 36 Inch
BESTFIT TRUCK PARTS
$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...$443.99 -
48.5 Inch Black Gel-Coat Fiberglass Wide Lip Single Axle Fender
WTI FENDERS
$587.9948.5 X 24.5 X 30.5 Inch Full Radius FenderLooking for a tough fender replacement? Our single radius fender is crafted from composite fiberglass, making it both durable and lightweight at just 32 lbs. With dimensions of 48.5 inches in length, 24.5 inches...$587.99 -
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 Air Bag For Peterbilt Low Air Leaf, Kenworth AG210L, AG400L Suspensions
BESTFIT TRUCK PARTS
$302.99BESTfit Air Bag - Replaces W01-358-8852Introducing the Air Bag, a reliable component for your suspension system. With a rolling lobe design, it offers excellent performance. At 80 PSI, it can handle loads up to 5640 lbs, while at 100 PSI, it supports...$302.99