The national cost for transmission oil cooler line replacement is between $72 and $263 with an average of $148

Save 10-40% on your vehicle maintenance and repair. We can guarantee that any service you book through us will cost you less than any retail price you can find.​

In Ashburn, people who book through CarAdvise save $34 on average for Transmission Oil Cooler Line Replacement. Lock in this price now.

hours mins secs
hours mins secs

Trusted by the Nation’s top shops and brands

National average cost of a Transmission Oil Cooler Line Replacement
for popular vehicles:

What is a transmission oil cooler line and how does it work?

A transmission oil cooler line is a tube that carries automatic transmission fluid (ATF) from the transmission housing to an oil cooler located at the front of the vehicle. Acting as a type of radiator, the transmission cooler helps to regulate the temperature of the ATF and extend the life of your transmission. This is especially helpful when a transmission needs to work extra to tow a trailer or haul a heavy load. Some transmission coolers come as a standalone unit, usually mounted ahead of the A/C condenser. Others are included as a secondary component of the radiator. Either way, the transmission cooler lines move ATF to and from the transmission cooler.

How do I know if a transmission oil cooler line needs to be replaced?

Transmission oil cooler lines are typically made of aluminum, frequently with sections made of rubber. A transmission oil cooler line may need to be replaced if any of the following happens

Automatic transmission fluid level drops

Cooler line is leaking

Cracks or severe corrosion form in a line

A line is collapsed or kinked


Sign up for our newsletter to get the latest news and deals straight to your inbox

There are 50 shops within 20 miles of your location.


How is this service performed

How is a Transmission Oil Cooler Line Replacement done?

In order to replace a transmission cooler line on many makes and models, a mechanic will need to safely lift and support the vehicle off of the ground. Metal skid plates and plastic panels may need to be removed for access. The line is usually routed around a number of other components. Sometimes, it is necessary to set back other parts to get them out of the way. Once the cooler line is accessible, the mechanic will take the following general steps

  • Disconnect the line from both the transmission and the oil cooler
  • Detach any mounts attached to the line
  • Work the old line out from the path where it is routed
  • Carefully route the new line so as to prevent kinking or other damage
  • Connect the ends of the line to the transmission and the cooler
  • Reattach any mounts and replace any parts that were removed or set back
  • Top off the transmission fluid and cycle through the transmission Note


We help you search, schedule, and save on your car’s maintenance and repair.

With CarAdvise, you can save 10-40% on your vehicle maintenance and repair.

Partner with trusted auto repair shops like Firestone, Pep Boys and Jiffylube offering CarAdvise at over 26,000 shops nationwide:

Trusted by over 1 Million users

When you book with CarAdvise, get access to our ASE trained techs to answer any questions you have about your repair.

We help you save money

We guarantee that any service you book through us will cost you less than any retail price you can find.

We guarantee our work

12 Month, 12,000 Mile Warranty on every service booked through CarAdvise.