CSF 20023 Automatic Transmission Oil Cooler

CSF 20023 Automatic Transmission Oil Cooler

The CSF 20023 automatic transmission oil cooler is a parallel-flow unit built for direct-fit service on select Ford Expedition and Lincoln Navigator applications. It is sized for the factory-style cooling layout and uses tube inlet and outlet connections for straightforward integration with the transmission cooling circuit.

Key Features

• Parallel-flow construction for efficient fluid cooling
• Core dimensions: 21 2/3 in. length, 3 5/7 in. width, and 1 in. thickness
• Tube inlet and tube outlet connections
• Fits select 2007-2017 Ford Expedition and Lincoln Navigator applications
• Cross-references Carlson 19052 for the same application
• Part number: CSF 20023

Product Details

Built as an automatic transmission oil cooler, CSF 20023 helps manage transmission fluid temperature in vehicles that rely on a dedicated cooler in the radiator support area. The parallel-flow core design promotes consistent fluid passage through the cooler, while the compact core profile supports OE-style packaging. This part is listed for 2015-2017 Ford Expedition, 2015-2017 Lincoln Navigator, 2008 Ford Expedition with tow package and build date to 12/4/07, 2008 Lincoln Navigator with tow package and build date to 12/4/07, and 2007 Ford Expedition and Lincoln Navigator with tow package. The CSF 20023 part number is also associated with interchange references 7L1Z7A095B and FO4050122.

What It Helps Address

• Transmission fluid overheating during towing or heavy load use
• Reduced cooling performance from a damaged or restricted cooler
• Fluid temperature spikes in stop-and-go driving
• Leak concerns caused by a worn factory cooler
• Service replacement needs on Expedition and Navigator cooling systems

Installation Notes

Verify the vehicle year, tow package status, and build date before ordering, especially for 2007-2008 applications. Confirm inlet and outlet tube routing against the original cooler and inspect surrounding cooling-system components for wear, contamination, or damage before installation. For best results, flush the transmission cooler lines and replace degraded fluid as part of the repair.

Quality Assurance

CSF manufactures cooling components for automotive service applications, and this cooler is built to match the listed fitment and dimensional requirements for the specified Ford Expedition and Lincoln Navigator models.