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Heavy-Duty Parts For Truck, Bus, and Off-Road Equipment.

Kenworth, Peterbilt Radiator - Kenworth HK179001, Peterbilt F3112541101111, Northern Radiator 238869, Reach Cooling 42-10749

Save: $64.06
Part
T21849

In Stock

$640.57

Original Price: $704.63

You Save: $64.06

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Product Information
  • SKU
    T21849
  • UPC
    06941278992458
  • Core Material
    Aluminum
  • Core Row Quantity
    2
  • Tank Material
    Plastic
  • Inlet Location
    Top Left
  • Outlet Location
    Bottom Right
  • Core Height
    34.09 in / 866 mm
  • Core Thickness
    1.57 in / 40 mm
  • Core Width
    37.72 in / 958 mm
  • Filler Neck Included
    No
  • Outlet Diameter
    2.52 in / 64 mm
  • Transmission Oil Cooler Included
    No
  • Down Flow Or Cross Flow
    Down Flow
  • Radiator Cap Included
    No
  • Features
    • Our B-type tubes feature central reinforcement to provide greater tolerance to pressure. Stronger tube design means drastically reduced probability of tube failure.
    • Our deep extrusion header provides a stronger tube to header joint which is more resistant to the effects of vibration and thermal tube expansion, virtually eliminating tube to header leaks.
    • Our fin edges are folded for increased stability and heat disbursement properties.
    • Our included "multi-fit" attachments allow one radiator to cover multiple vehicle applications without sacrificing OE fit. This results in wider vehicle coverage with substantially less inventory.
    • Thermal expansion cuts allow for longer life and reduce failure rates by allowing improved core expansion and contraction during normal heat cycles.
    • We design and manufacture all our radiators to meet or even exceed Original Equipment specifications. We take pride in producing the most reliable replacement parts in the market.
    • We use longer header tabs for increased pressure resistance. This reduces the potential for tank to header leaks.
  • Cross References
    BrandPart Number
    TEXAS TRUCK ACRC-42-10749
    1-800-Radiator2401892
    Active Radiator Supply Company650032
    Active Radiator Supply Company650032AT
    Active Radiator Supply Company650032PT
    KenworthHK179001
    Lynol Cooling Systems2205-012
    Northern Radiator238869
    Northern Radiator238900
    OEM437565
    OEMAFA-000553
    OEMAFX000523
    OEMF3112541101121
    OEMF3112541101211
    OEMF3112541101221
    OEMF3112541102111
    OEMF3112541102211
    OEMF3112541102221
    OEMF3112541111111
    OEMF3112541111211
    OEMF3112541111221
    OEMF3112541112111
    OEMF3112541112211
    OEMF3112541121121
    OEMF3112541121211
    OEMF3112541121221
    OEMF3112541122211
    OEMF3112541122221
    OEMF3112541131111
    OEMF3112541131211
    OEMF3112541131221
    OEMF3112541132211
    OEMF3112541201111
    OEMF3112541201231
    OEMF3112541201241
    OEMF3112541202231
    OEMF3112541211231
    OEMF3112541211241
    OEMF3112541221231
    OEMF3112541221241
    OEMF3112541222231
    OEMF3112541231231
    OEMF3112541231241
    OEMF3112541303211
    OEMF3112541304211
    OEMF3112541313211
    OEMF3112541314211
    OEMF3112541314221
    OEMF3112541323211
    OEMF3112541421211
    OEMF3112541422211
    OEMF3112541431211
    OEMF3112541521211
    OEMF3112541522211
    OEMF3112541531211
    OEMF3112541532211
    OEMF3112541601111
    OEMF3112541601121
    OEMF3112541601231
    OEMF3112541601241
    OEMF3112541602231
    OEMF3112541602241
    OEMF3112541611231
    OEMF3112541611241
    OEMF3112541612231
    OEMF3112541612241
    OEMF3112541621231
    OEMF3112541621241
    OEMF3112541622231
    OEMF3112541622241
    OEMF3112541631231
    OEMF3112541B01111
    OEMHK179001
    OEMLT9613
    OEMPET40
    Paccar PartsRAD42-10749TRP
    PeterbiltF3112541101111
    Spectra Premium2001-2517
    Superior Cooling Systems238900
    TRUCKAC+T21849
Product Description
When your Kenworth T680, T880, or Peterbilt 579 needs a radiator replacement, the Reach Cooling 42-10749 delivers a precision aftermarket fit designed to meet or exceed OEM specifications. This radiator directly replaces Kenworth HK179001 and Peterbilt F3112541101111, and cross-references Northern Radiator 238869, Active Radiator Supply Company 650032AT, Spectra Premium 2001-2517, and 1-800-Radiator 2401892. The aluminum core measures 34.09 inches tall by 37.72 inches wide with a 40 mm thickness, and features a two-row down-flow design with a top-left inlet and bottom-right outlet, both 2.52 inches in diameter. Reinforced B-type tubes with central webbing resist pressure fatigue, while deep extrusion headers virtually eliminate tube-to-header leaks caused by vibration and thermal cycling. Folded fin edges improve stability and heat disbursement, and thermal expansion cuts allow the core to breathe through normal heat cycles for extended service life. Multi-fit attachments provide broad vehicle coverage across the 2018-2024 Kenworth T680, 2024-2025 Kenworth T880, and 2018-2024 Peterbilt 579 in engine displacements from 8.9L through 14.9L. If you are sourcing by Kenworth HK179001 or Peterbilt F3112541101111, the Reach Cooling 42-10749 is the confirmed aftermarket replacement that installs correctly and cools reliably.

TruckAC+ is your direct source for Heavy-Duty Parts on Truck, Bus, and Off-Road Equipment applications. We offer brand specific products, backed by a manufacturer’s warranty, competitive pricing, and guaranteed same day shipping. TruckAC+ product offerings include Red Dot A/C and Heat units, OEM Sanden A/C Compressors, Blower Motors, Condensers, Evaporators, Expansion Valves, A/C Fittings, Heater Cores, Receiver Driers, Sensors, Turbochargers, Hydraulic Hose/Fittings, APU Parts and more!

Our website is simple to navigate; you can shop by the OE number and/or product to complete your order within minutes. For assistance with an order, please contact our Customer Service team. Customer Service Representatives are available Monday – Friday 8am - 5pm (CST) by email at customerservice@truckac.com, or phone at 1-844-878-2522.