Kenworth Peterbilt Framed Radiator Assembly (2022-2026) - Complete Drop-In - Replaces PY091001

• Complete Drop-In Assembly: Comes pre-mounted with the heavy-duty reinforcement frame, saving you hours of labor and the frustration of transferring old, fatigued hardware.
• Direct OEM Match: Precision-engineered to directly replace PACCAR OEM number PY091001 and 770057 for a seamless, factory-style installation.
• Vibration & Stress Protection: The included steel frame prevents chassis flex and heavy road vibrations from cracking the aluminum core, maximizing your cooling system's lifespan.
• Maximum Heat Dissipation: Features a massive 42-15/16" x 33-15/16" high-efficiency core to keep your 2022+ Kenworth or Peterbilt running cool.
• 1-Year Warranty: Backed by a comprehensive 1-Year Limited Warranty, giving owner-operators and fleet managers total peace of mind for the long haul.

Get your "Next Gen" PACCAR truck back on the road faster with this premium Kenworth Peterbilt Framed Radiator Assembly by FleetPro Parts & Tires. Specifically engineered for the 2022–2026 Kenworth T680 and Peterbilt 579 models, this unit comes pre-mounted in a heavy-duty steel reinforcement frame. By choosing a complete framed assembly, you eliminate the risk of core damage during hardware transfer and save your mechanic up to three hours of labor. We stock these heavily right here in our Hanover Park, Illinois warehouse to ensure lightning-fast shipping for owner-operators and fleets across the Midwest and nationwide.

Save Labor and Prevent Stress: The Kenworth Peterbilt Framed Radiator Assembly Advantage

This Kenworth Peterbilt Framed Radiator Assembly is the definitive solution for high-torque diesel engines that demand maximum thermal efficiency. The integrated steel frame acts as a structural exoskeleton, absorbing the chassis flex and heavy road vibrations that frequently cause "core-only" replacements to crack prematurely. Note: Its precision-engineered 42-15/16" x 33-15/16" aluminum core provides superior heat transfer, while the 2-1/2" inlet and outlet connections ensure a leak-proof seal with your factory cooling hoses during the demanding 2026 haul season.

At FleetPro, we specialize in high-quality PACCAR cooling components that offer a professional alternative to expensive dealer parts without sacrificing durability. This complete unit is a direct replacement for major OEM part numbers including PY091001 and 770057. Don't waste money on a partial repair; upgrade to a complete framed assembly and experience the reliability your long-haul business depends on.

Vehicle Fitment & Compatibility

This framed radiator assembly is a guaranteed fit for the following 2022-Current applications (Must match OEM number):

• Kenworth T680: 2022, 2023, 2024, 2025, 2026
• Peterbilt 579: 2022, 2023, 2024, 2025, 2026
• Note: Fits "Next Gen" Aerodynamic body styles only.

Direct Replacement & Cross-Reference Numbers:

This assembly serves as a direct exact-fit replacement for the following part numbers:

• PACCAR OEM: PY091001
• Industry Cross-Reference: 770057PT, 770057

Technical Specifications

Core Height 42-15/16" Core Width 33-15/16" Core Depth 1-5/8" (High-Efficiency Row) Inlet / Outlet 2.5" / 2.5" Construction Aluminum Core / Plastic Tanks / Steel Frame Mounting Frame Included (Pre-Assembled) Warranty 1-Year Limited Warranty