Fits Peterbilt 579 - Years: 2022+ Truck
High Quality OE Style Radiator with Plastic Tanks / Aluminum Core
CORE HEIGHT: 42 15/16", CORE WIDTH: 33 15/16", DEPTH: 1 5/8", INLET: 2 1/2", OUTLET: 2 1/2"
OEM Part Numbers: PY091001, 770057PT, 770057
Comes with Peterbilt Logo, 2x22" Windshield Wipers, License Plate Frame, 2x Trailer Tail Lights, KOZAK Reflective Vest
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Keep your 2022 or newer Peterbilt 579 running cool and strong with this high-quality aftermarket radiator, part number PY091001. Designed as a direct OE-style replacement, this radiator features a durable aluminum core paired with robust plastic tanks, delivering reliable cooling performance that meets or exceeds original equipment standards. Whether you're hauling cross-country or managing a busy fleet, a properly functioning cooling system is critical — and this unit is built to handle the demands of long-haul trucking day in and day out.
Fitment is precise and straightforward for the 2022 and newer Peterbilt 579, making it an ideal choice for truck owners, fleet managers, and professional body shops looking for a dependable replacement without the dealership price tag. The core dimensions measure 42 15/16" in height and 33 15/16" in width, with a 1 5/8" depth and 2 1/2" inlet and outlet connections, ensuring a factory-accurate fit right out of the box. Compatible OEM part numbers include PY091001, 770057PT, and 770057, so you can cross-reference with confidence before ordering.
Installation is designed to be as straightforward as possible, with the aluminum core and plastic tank construction keeping the unit lightweight without sacrificing structural integrity. The OE-style design means existing hardware, hoses, and mounting points align properly, reducing labor time and getting your truck back on the road faster. This radiator also comes with the Peterbilt logo and includes bonus accessories like 2x 22" windshield wipers, a license plate frame, 2x trailer tail lights, and a KOZAK reflective safety vest — added value you won't find just anywhere.
At Kozak Parts, customer satisfaction and fast turnaround are top priorities. This radiator ships quickly from our Seattle, WA warehouse, so you're not stuck waiting around for critical parts. Order with confidence knowing you're getting a quality cooling solution at a competitive price, backed by a team that understands the trucking industry.