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GM 25740120
Transmission Cooler

2003-2004 Cadillac CTS

Customer Questions & Expert Answers (5)
GM 25740120 Transmission Cooler
  • Part Description
    Cooler, Transmission Fluid Auxiliary
  • Manufacturer
    General Motors
  • Manufacturer's Notes
    This part is discontinued.
Make sure this part fits

  • 25740120 Transmission Cooler is Ref No. 1 in the diagram below

    2003 Cadillac CTS Transmission Cooler Diagram for 25740120
    The diagram listed above is for your reference. View diagram for your vehicle

  • Vehicle Fitment

    Year Make Model Trim Engine
    2003-2004 Cadillac CTSBase, Luxury, Luxury Sport6 Cyl 3.2 L GAS
    Warning: California's Proposition 65

  • Customer Questions & Expert Answers

    Q:
    Can you help me check if this 25740120 is the right part for my car? Posted by ChevyPartsGiant Specialist
    A:
    Please Select Your Vehicle model to see if part number 25740120 is suitable before ordering.
    Posted by ChevyPartsGiant Specialist
    Q:
    How to replace the auxiliary transmission oil cooler on Cadillac CTS? Posted by Customer
    A:
    To replace the Auxiliary Automatic Transmission (AT) Oil Cooler, the following is done: detach the front air deflector, and then disconnect the auxiliary transmission oil cooler inlet and its outlet line. Next, you will have to remove the auxiliary transmission oil cooler mounting bolts and remove the auxiliary transmission oil cooler. To install, start by installing the auxiliary transmission oil coolers, making sure to observe the Fastener Notice in Service Precautions. Next, mount and tighten the auxiliary transmission oil cooler mounting bolts to a 6.5 Nm (58 inch lbs.). Then make a connection to the auxiliary transmission oil cooler outlet line and inlet line and reinstall a front air deflector. Finally, check on the fluid transmission level and examine the auxiliary transmission oil cooler for leaks.
    Posted by ChevyPartsGiant Specialist
    Q:
    How to replace the oil cooler and oil cooler cover on Cadillac CTS? Posted by Customer
    A:
    You need to start by removing the Intake Manifold together with the water crossover before replacing the Oil Cooler and Oil Cooler cover. The first step is to detach the inlet fitting together with the outlet fitting from the Engine Oil Cooler while keeping records of the 4 seals' initial positions. Begin by taking off the Engine Oil Cooler lines running through the engine followed by the removal of Engine Oil Cooler inlet and outlet nuts and Engine Oil Cooler cover bolts. Remove the Engine Oil Cooler cover and the cooler itself to clean the mating surfaces of the cylinder block while inspecting the Oil Cooler design. Begin by installing the Engine Oil Cooler inlet/outlet o-ring seals before applying a 2 mm (0.08 inch) bead of gm p/n 12378521 (Canadian P/N 88901148) to the groove around the Engine Oil Cooler cover. Thread adhesive gm p/n 12345382 (Canadian P/N 109534382) should be applied to Engine Oil Cooler cover bolts prior to position its installation onto the engine. Start by affixing the Engine Oil Cooler cover bolts to their respective locations and tighten them to 20 nm (15 ft. Lbs.) using a sequence method. Install the Engine Oil Cooler inlet and outlet nuts while applying 30 nm (22 ft. Lbs.) of torque force. Use 4 new seals when installing the Oil Cooler inlet and outlet fittings to the Engine Oil Cooler. Both fittings need to be tightened to 30 nm (22 ft. Lbs.). You should first connect the Oil Cooler lines to the engine before completing installation with the water crossover and the Intake Manifold.
    Posted by ChevyPartsGiant Specialist
    Q:
    How to Service and Repair the Transmission Oil Cooler on Cadillac CTS? Posted by Customer
    A:
    Begin the Auxiliary Automatic Transmission (AT) Transmission Oil Cooler replacement by removing the front air deflector followed by disconnecting the inlet and outlet lines. Start by removing the auxiliary transmission oil cooler mounting bolts before taking out the auxiliary transmission oil cooler. When installing the auxiliary transmission oil cooler begin by installing the auxiliary transmission oil cooler mounting bolts then torque them to 6.5 Nm (58 inch lbs.). Reinstall the front air deflector after you connect the auxiliary transmission oil cooler outlet line to its respective inlet line. Check the transmission fluid level and look for any signs of leakage on the auxiliary transmission oil cooler.
    Posted by ChevyPartsGiant Specialist
    Q:
    What should be done after removing the engine oil cooler cover for the 2003 Cadillac CTS? Posted by Customer
    A:
    Remove the engine oil cooler from the engine and clean the cylinder block mating surfaces as well as the oil cooler itself.
    Posted by ChevyPartsGiant Specialist
    See expert answers on similar Oil Cooler
    If you have any questions about this product, please don't hesitate to ask us. We will be happy to help you!

OEM GM Transmission Cooler 25740120 Designed for Proper Fit and Performance

Original OEM GM parts deliver superior quality and meet all performance standards needed for optimal automotive operation. The authentic part identified by 25740120 Transmission Cooler is available in the market under the name GM Oil Cooler, Transmission Oil Cooler. This genuine product has a full warranty coverage from the manufacturer available at all authorized GM dealers throughout the United States. This part 25740120 Transmission Cooler fits certain Cadillac CTS models.
The original GM component designated by manufacturer part number 25740120 maintains top performance when functioning as the Cooler, Transmission Fluid Auxiliary unit. The component 25740120 is constructed from durable material and its dimensions span 18.9 x 18.4 x 18.4 inches while weighing 7.40 Pounds. The Direct Replacement component is ready in New condition to ensure full compatibility with your vehicle system. This component receives the designation of Cooler, Transmission Oil Cooler. The part 25740120 has available replacement options. GM manufacturer provides a warranty that ensures reliable operation of this product. The Shipping Policy and Return Policy pages outline complete details regarding shipping procedures and return processes.
If you want to save money in the long run on maintenance and repairs, you should choose OEM products because they're of the top level of durability. Are you on the quest of finding GM parts, our site is worth a visit. We stock an endless selection of high-quality GM components including things like ignition coils all the way through to fan shrouds and all at prices that can not be matched. You have nothing to worry about because all our OEM parts are covered with a manufacturer warranty, which guarantees superior quality and value.