2003 Chevrolet Pickup, Silverado Transmission Cooler search with the Hitch Hunter ™ by etrailer.com (800) 298-8924

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Choose from the following selection of transmission coolers that are rated for use in your vehicle.
If you have any questions you can contact our customer service department.

The key to automatic transmission life is keeping the transmission fluid fresh, clean and cool. When fluid temperature exceeds the optimum operating range of 160 to 200 degrees, it begins to burn, decreasing the life of the fluid and in turn the life of the seals, bearings and all moving parts. Installation of a cooler will extend the life of the transmission and help prevent costly repairs.

Choosing the Right Transmission Cooler

Select the correct transmission cooler by determining where there is enough space to mount it. The diagram on the left numbers the best three positions to mount the transmission cooler in order. Transmission coolers are more efficient when they receive maximum air flow. At Position 1, the transmission cooler is 100% efficient. Position 2, between the air conditioning condenser and radiator, is 75% efficient while Position 3, between the radiator and fan, is only 60% efficient. If positions 2 or 3 are used, a larger transmission cooler will be needed to compensate for the loss of cooling power. If this is the case, choose a transmission cooler that is one or two sizes larger.

Tech Tips: Transmission fluid can not be over cooled, but it is critical in extreme cold conditions to allow the vehicle to warm up before driving.


For The Chevrolet Pickup, Silverado 4.3 thru 4.8 Liter
41010 Light Duty Tube and Fin Cooler	41011 Medium Duty Tube and Fin Cooler	41019 Class I High Performance Cooler	41020 Class II High Performance Cooler	41310 Class III High Performance Cooler
Use Fittings 41411


For The Chevrolet Pickup, Silverado 5.3 thru 8.1 Liter
41013 Heavy Duty Tube and Fin Cooler	41014 Extra Heavy Duty Tube and Fin Cooler	41312 Class V Tube and Fin Cooler	41020 Class II High Performance Cooler	41310 Class III High Performance Cooler	41311 Class III + High Performance Cooler
Use Fittings 41411