Radiator for Select Kenworth T680 & Peterbilt 579 Models

Manufactured using premium-quality materials to provide reliable cooling performance, durability, and long service life for heavy-duty trucking applications. This OE-style replacement radiator is specifically engineered for select Kenworth T680 and Peterbilt 579 models utilizing the F3112541101211 cooling system configuration.

Constructed with heavy-duty plastic tanks and a high-efficiency aluminum core, this radiator is designed to withstand demanding highway, fleet, and commercial operating conditions while maintaining proper engine cooling performance. Designed as a direct OE-style replacement for damaged, leaking, or aging factory cooling units while offering a cost-effective alternative to OEM dealer pricing.

This radiator configuration is commonly used on newer-generation aerodynamic PACCAR platforms equipped with PACCAR MX-13, MX-11, and select Cummins X15 engine applications.

Product Specifications

• Application: Select Kenworth T680 & Peterbilt 579 Models
• OE Reference: F3112541101211
• Construction: Plastic Tank / Aluminum Core
• Flow Type: Crossflow
• Inlet Location: Upper Left
• Outlet Location: Lower Right
• Inlet Diameter: Approx. 2 1/2"
• Outlet Diameter: Approx. 2 1/2"
• Core Height: Approx. 34 1/8"
• Core Width: Approx. 38 7/8"
• Core Thickness: Approx. 1 5/8" – 2 1/16"
• Oil Cooler Setup: External / Separate Oil Cooler Configuration
• Frame: Without Frame
• Type: OE-Style Replacement Radiator
• Condition: Brand New
• Engine Compatibility: PACCAR MX-13 / MX-11 & Select Cummins X15 Applications
• Manufacturer Warranty: 18-Month

OE & Cross Reference Numbers

PACCAR / Kenworth / Peterbilt OE Numbers

• F3112541101211
• F3112541102211
• F3112541111211
• F3112541111221
• F3112541121211
• F3112541201231
• F3112541531211
• F3112541602231
• F3112541611231
• F3112541612231
• HK179001
• 437565
• 650032

Aftermarket Cross Reference Numbers

• 2001-2517
• 650032AT
• 437565P
• 437565PF
• SC-238900
• SC-238901
• SC-238853
• SC-238869

Important Fitment Note:
PACCAR utilized multiple cooling system configurations across Kenworth and Peterbilt models. Please verify OE part number, radiator dimensions, frame configuration, inlet/outlet orientation, and vehicle VIN prior to purchase to ensure correct fitment.