Product Summary

33-34 Chevy, 1939 Chevy, Single Pass Radiator Style

    Key Specs

    MFG. Part #Z-503-1
    Radiator StyleSingle Pass
    Radiator Flow DirectionDownflow
    Material TypeCopper/Brass

    Need To Know

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    Walker Z-Series radiators feature a 4-row, high-flow copper core which is ideal for use with Big Blocks, blowers, and high compression engines. Built for a direct fit with heavy gauge steel side brackets and mounting holes pre-stamped. Includes a built-in oil cooler for automatic transmissions.

    • Works with original, reproduction steel, or fiberglass grille shells
    • Copper core w/ 1-piece brass tanks
    • Vertical tubes every 1/4" and 12 fins per inch of height
    • Heavy duty 12 Ga. steel side brackets w/ pre-drilled holes
    • Use a 15-18 lb. radiator cap
    • Brass drain cock
    • Simple bolt-in install w/ no modifications to grille or grille shell

    Chevy Chassis W/ Chevy Engine Application Chart (GIF)

    Learn more about how radiators work and selecting the proper radiator for your vehicle by reading our tech article. Radiator Cooling Performance.   

    Item Details

    Overall tank measurements for this radiator are 26.5" tall and 17" wide.



    This item is in closeout status and as such, no manufacturer warranty is applicable or extended with its purchase.


    MFG. Part #Z-503-1
    BrandWalker Radiator Works
    Radiator StyleSingle Pass
    Radiator Flow DirectionDownflow
    Material TypeCopper/Brass
    Inlet LocationUpper driver side
    Outlet LocationLower passenger side
    Row Quantity4
    Overall Width Range17.00" to 17.99"
    Overall Width17.13"
    Overall Height Range26.00" to 26.99"
    Overall Height26.50"
    Overall Thickness4.19"
    Core Width Range16.00" to 16.99"
    Core Width16.875"
    Core Height Range22.00" to 22.99"
    Core Height22.00"
    Core Thickness2.75"
    Cooling FanNot Included
    Transmission CoolerYes
    Shroud IncludedNo
    Filler Neck Height.88"
    Inlet Size1.50
    Fan IncludedNo
    Notes1/8" NPT fittings for transmission cooler. 1/4" NPT fitting for drain. 1.25" wide mounting feet on both sides.
    Sold in QuantityEach