10 Best Transmission Cooler of December 2025

• Size is 3/4 inch x 10 inch x 15-7/8 inch
• SAE 45 degree fittings for maximum reliability
• Electrostatically powder coated to prevent corrosion
• All aluminum lightweight construction
• Fits up to class "A" motorhomes towing up to 10,000 pounds

Hayden Automotive

• Size is 3/4 inch x 11 inch x 11-5/8 inch
• Class "A" motor homes, large travel trailers, 5th wheel trailers
• GVWR up to 30,000 pounds, towing up to 10,000 pounds
• Patented internal turbulation increases heat transfer with minimal pressure drop
• Pre-drilled mounting brackets for easy installation

Hayden Automotive

• Feature: Usable to cool down engine oil, transmission fluid. The 4 pass design tube-fin cooler can prevents heat related transmission failures. Helping to reduce transmission fluid temperature and extends life of transmission and improves transmission performance. This is a cheap and simple type of transmission cooler. This kit included an Insta-dapt adapter fitting for adapting the cooler line to the radiator which fits most vehicles with 5/16" ID transmission cooler lines.
• Majority of transmission problems are caused by transmission overheating. Heat kills automatic transmissions, reduce lifespan, especially in big powered street vehicles. Adding an external transmission cooler to your vehicle is the most effective ways to prevent overheating and help the transmission work efficiently. This style cooler does not work well with an overdrive transmission.
• Tube & fin style transmission cooler is made of lightweight aluminum alloy T-6061. Hose test pressure: 145psi. Hose working temperature: 140℉ to 176℉. Kit include: 1pc transmission cooler, 1pc 5/16"(8mm)ID hose (Length:5ft), 4pcs hose clamps, 1pcs insta-dapt radiator adapter, 4pcs mounting rods, 4pcs mounting clips, 4pcs foam pads.This kit comes with a complete transmission cooler hardware kit to easily install onto vehicles with 5/16" transmission cooler hose.
• Universal transmission cooler kit for most vehicle as long as the connector is suitable and have enough installation space. Choose a reasonable spot to install for maximum efficiency. It is typically recommended to mount it in a location that gets a significant amount of airflow. Based on this, the best place to mount a cooler would be in front of the air conditioning condenser. Please measure the size before purchase to ensure it can be installed.
• Tube and fin style transmission cooler has a tube that allows the transmission fluid to flow to the thin fins that disperse the heat and cool it. The air flowing over the fins which create a heat sink effect in return. The cooler core will flow in either direction, there is no specified inlet or outlet port. We provide 3-month after-sales service for the cooler, any problem you have, you can contact us by amazon message.

EVIL ENERGY

• Replacement 16 pass tube and fin style cooler core for -8AN Electra-Cool remote oil and transmission coolers

Derale

• Embossed turbulators inserted in each tube agitate fluid for maximum heat transfer
• Extruded plastic cooling fin guards
• Improves transmission performance
• Sturdy furnace-brazed aluminum construction
• Kit dimensions: Width: 11", Height: 12", Depth: 7/8"

Derale

• Ideal for any heavy-duty, supercharged, or turbocharged vehicle
• Overall size: 7.5” x 12.8” x 2.36” / Inlet & outlet: 0.34” / Rows: 2
• Includes 8" slim electric fan for maximum cooling
• Includes mounting equipment for universal installation
• Mishimoto lifetime warranty
• Construction: Aluminum tube and fin
• Inlet - .34", Outlet - .34"
• Rows - 2 kit includes: Transmission cooler, nipple end size: 3/8, push-on - 8" electric fan
• CFM: 1100, RPM: 2800, Amps: 4

Mishimoto

• Size is 3/4 inch x 11 inch x 9-1/2 inch
• Pick-up trucks and vans, class "C" motor homes , travel trailers to 24 feet
• GVWR up to 24,000 pounds, towing up to 5,000 pounds
• Patented internal turbulation increases heat transfer with minimal pressure drop
• Pre-drilled mounting brackets for easy installation

Hayden Automotive

• Rigid stacked-plate design is resistant to damage, and much better at cooling than ordinary 'fin and tube' coolers
• Constructed from black finished lightweight aluminum alloy for maximum corrosion resistance
• 11" x 7-1/4" x 3/4" model is rated at 13.000 BTU, and pressure tested to 200 PSI
• Includes installation kit
• Backed by the manufacturer with a 1 year limited warranty

B&M

• Mounts anywhere space permits. Designed for transmission, power steering and fuel cooling.
• Electric fan supplies optimum airflow
• Dramatically extends engine and transmission life
• 16 pass tube and fin cooler
• Fit type: Vehicle Specific

Derale

• Size is 3/4 inch x 7-1/2 inch x 12-1/2 inch
• Mid-size and full-size cars, pick-ups
• GVWR up to 18,000 pounds, towing up to 3,500 pounds
• Ultrasonically soldered for durability
• 100 percentage pressure tested

Hayden Automotive