How to replace the auxiliary transmission oil cooler on Cadillac CTS?

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.

OEM Cadillac CTS Transmission Oil Cooler

Trans Oil Cooler

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3 Transmission Oil Coolers found

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Cadillac CTS Transmission Cooler
Part Number: 25829909
$173.38 MSRP: $256.85
You Save: $83.47 (33%)
Ships in 1-2 Business Days
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Product Specifications
- Other Name: Cooler Assembly-Transmission Fluid Auxiliary; Oil Cooler; Cooler, Transmission Oil Cooler
- Warranty: This genuine part is guaranteed by GM's factory warranty.
Fits the following Vehicles:
- 2008-2015 Cadillac CTS | Base, Luxury, Performance, Premium, V | 6 Cyl 3.0 L GAS, 6 Cyl 3.6 L FLEX, 6 Cyl 3.6 L GAS, 8 Cyl 6.2 L GAS
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Cadillac CTS Transmission Cooler
Part Number: 23385931
$281.64 MSRP: $420.99
You Save: $139.35 (34%)
Ships in 1-3 Business Days
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Product Specifications
- Other Name: Cooler Assembly-Transmission Fluid Auxiliary; Oil Cooler; Cooler; Cooler, Transmission Oil Cooler
- Replaces: 23270127
- Warranty: This genuine part is guaranteed by GM's factory warranty.
Fits the following Vehicles:
- 2016-2019 Cadillac CTS | V | 8 Cyl 6.2 L GAS
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Cadillac CTS Transmission Cooler
Part Number: 25740120
Product Specifications
- Other Name: Cooler, Transmission Fluid Auxiliary; Cooler, Transmission Oil Cooler
- Warranty: This genuine part is guaranteed by GM's factory warranty.
Fits the following Vehicles:
- 2003-2004 Cadillac CTS | Base, Luxury, Luxury Sport | 6 Cyl 3.2 L GAS

Cadillac CTS Transmission Oil Cooler

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Cadillac CTS Transmission Oil Cooler Parts Questions & Experts Answers

Transmission Cooler
25740120
Q: How to replace the auxiliary transmission oil cooler on Cadillac CTS?
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.