Bottom Tank Transmission and Oil Coolers

PosiTech® International has many different types of bottom tank coolers, used in plastic and copper/brass tank design. These are usually transmission or oil coolers which are in the bottom tank of the radiator.

There are four bsic bottom tank cooler design we offer:

  1. Bolt on tanks, in tank square weld in coolers.
  2. Bolt on tanks, large round bundle coolers.
  3. Flat Plate coolers
  4. Concentric, or round barrel, coolers.

If you need a replacement bottom tank cooler, give us a call. Even if you don't see the exact unit you need here, we may be able to custom make a cooler for you, saving our customer the cost of an entire new assembly and allowing you to make money while helping your customer.

bolt on bottom tank coolers

Bottom Tank Radiator Oil Cooler (Concentric Type)
PosiTech® custom manufactures concentric coolers in 1, 2, 3, 4, 5, 6, and 8 barrel designs. Tube sizes available range from 3/4" to 2" with a complete list of fittings available.

Concentric coolers are custom made to your specifications and can usually ship the following day, and in certain circumstances the same day.

Bottom Tank Radiator Oil Cooler (Shell & Tube Bundle Type)
PosiTech® International manufactures bottom tank radiator shell and tube bundle type oil coolers for applications such as Euclid, Mack, and Dart. PosiTech® International has the capacity to manufacture or service almost any style oil cooler. If you have a cooler not mentioned here, call us. We may have it or be able to service yours.

 These coolers usually have round copper, brass or steel housings and come in O.D.'s ranging from 2.25" to 6" and length from 12 " to 56".

Bottom Tank Radiator Oil Cooler (Plate Type)
PosiTech® distributes a complete line of new bottom tank plate coolers. In stock items range from 1 to 22 plates, made with 8 1/2 to 18 inch centers.

Bottom Tank Radiator Oil Cooler (Square Tube Bundle)
PosiTech® International manufactures bottom tank radiator square tube bundles which are welded in the bottom tank. Usually these bundles are 5 x5, 5 x 7 or 7 x 7  steel square tanks and can vary in lengths from 35" to 53". Most often these are used in a Michigan Loader as a transmission or oil cooler.

bottom tank flat plate oil coolers
Euclid bottom tank transmission cooler
Copper tube bundle before installation into bottom tank
concentric, barrel or round bottom tank coolers