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Tru-Cool MAX, Super Duty Transmission Cooler kits

  • Tru-Cool Max transmission oil cooler has durable brazed aluminum construction and is designed for those applications that bypass the internal tank cooler for extra cooling or due to contamination.
  • Tru-Cool Max can also be installed in series for those applications requiring maximum cooling capacity.
  • WARNING: If vehicle is operated in temperatures below 32F or 0C the cold weather bypass will be required when using Tru-Cool Max coolers.
  • For use with 5/16 & 3/8 transmission cooler lines.
    Tru Cool Heavy Duty transmission cooler kits
    1 1/2" thick Cooler kits
    Ideal for trucks, heavy duty cooling, RV use and towing applications!
    LPD (Low pressure drop) highly efficient transmission fluid cooling technology that combines improved protection against lube system failure with the required levels of optimal heat transfer.

    For use with 5/16" & 3/8" transmission cooler lines.
    Do not use on 1/2" or larger lines used on some Chrysler diesels and Allison transmissions.

    Tru Cool Max

    Cooler Installation Information and Guide

    Tru-cool MAX coolers
    Part # Name Price

    # 4739

    Tru-Cool MAX transmission cooler with external thermal bypass

    Tru-Cool # LPD4739, 40,000 GVW rating, 45,000 BTU rating
    8 1/2 x 22 3/4 x 1 1/4 inch
    3/8 inverter flare (fittings are included for thread to hose barbs) Includes external thermal bypass for cold climates!

    # 708-4739P6

    Tru-Cool Remote External bypass

    Remote cold weather bypass only. No hose or clamps. External thermal bypass for large coolers used in cold climates (32 degree -). Installs in cooler line. Includes bypass only! Use on 5/16" & 3/8" line sizes ONLY!! Opens fully at approx. 180 +-
    Click for a our PDF file installation instructions.

    # 4739-1

    Tru-Cool MAX transmission cooler *No external cold weather thermal bypass

    # LPD47391 Tru-Cool 40,000 GVW rating, 45,000 BTU rating
    8 1/2 x 22 3/4 x 1 1/4 with 3/8 inverter flare (fittings are included for thread to hose barbs)
    *No external thermal bypass*Great choice for southern states where the winters are mild.

    # 4920-1K


    Cooler kit for RIALTA GROUP (Canada Version)

    Package Includes:
    4920-1,Tru-Cool MAX transmission cooler (Mini Max)
    723-4318, Transmission cooler hose(5 foot)
    708-4739, Remote external thermal bypass NOT INCLUDED- order separately as needed

    # 75494

    Transmission Dipstick Kit - Eurovan 1992-2003*Backordered Until Early Sept.*

    This kit includes the dipstick tube, the dipstick, seal ring for the tube base and for some brief installation instructions print the .pdf below.

    Comparison of the original VW transmission dipstick (top) to the ones that I've modified Dipstick Comparison PDF file

    Instructions for installing the transmission dipstick tube. Instructions PDF file
    The installation file is directed at Rialta owners, but can be used on any Eurovan chassis.

    # 708-4921

    ThermoStasis Transmission Oil Thermostat*NOT AVAILABLE*

    The ThermoStasis Transmission Oil Thermostat offers a unique combination of low operating temperature, true aircraft quality construction and compact configuration.
    The operating temperature of 165 F degree (74 C) is ideal for optimizing the performance and longevity of automatic transmissions.
    CNC-machined from aircraft-grade billet aluminum 6061-T6 and black anodized, the transmission oil thermostat has the following advanced features:
  • lowest available oil thermostat operating temperature
  • calibrated thermal motor
  • stainless steel return spring
  • integrated 3/8" hose barbs
  • double radial O-ring seal
  • Viton V90 O-rings
  • 2,750 lbf double shear stainless steel spring pins
  • low bypass design
    Click for a our PDF file installation instructions.
  • $0.00

  • Some late model cooler applications may require additional fittings when installing a cooler kit.
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    Phone / Text 1-850-419-1234