Davies Craig offer a wide range of Transmission oil coolers, please select from their Hydra-Cool range or a Combo pack if you want to add a fan. Due to the tremendous heat generated in an automatic transmission, an auxiliary transmission oil cooler is an economical way to help protect against costly transmission repairs.

Automatic transmission fluid (ATF) cools, lubricates and cleans internal transmission components. When transmission temperatures exceed 93°c (200°f), the ability of ATF to perform is greatly diminished. Subsequently, the life span of the fluid, seal and moving parts are significantly reduced. Higher internal temperatures also increase the wear rate of the friction and clutch plates.

Excessive transmission heat is caused by the following driving conditions:

Towing

Stop & go traffic

Hot driving conditions

Climbing

Carrying loads

Driving in sand or snow


Davies Craig transmission oil coolers can reduce the ATF's temperature by as much as 33°c (60°f). A reduction of just 1°c (20°f) can double the life of an automatic transmission, the fluid and all internal parts.

Two types of transmission coolers:

  • Ultra-Cool® tube and fin style - recommended for vehicles manufactured prior to 1990
  • Hydra-Cool® plate and fin style - suitable for all vehicles

The Ultra-Cool® finned-tube contemporary style oil cooler core is designed in the traditional and classical style heat exchange assembly. These cores are proposed for installation to the earlier automatic transmissions produced and sold prior to 1990. Their simple design and surface area will assist extract damaging heat from the transmission in order to keep the ATF at a manageable temperature and the transmission operating smoothly.

The Hydra-Cool® transmission oil cooler is an effective and economical way to keep the transmission at its optimum operating temperature. High efficiency turbulators in each tube direct the fluid for superior heat transfer. Hydra-cool's® unique plate and fin design allows for effective cooling, yet requires 33% less space. The hydra-cool's® compact design is perfect for applications where available mounting space is limited.

All Davies Craig transmission oil coolers are 100% pressure tested to ensure the reliability and durability of the product. Both ultra-cool ®` and hydra-cool® come complete with the necessary accessories and instructions for quick and easy installation.

*All coolers come complete with a mounting kit, flexible hose and hose clamps.

Part # Plates Thickness mm Overall Width mm Overall Height mm Core Width mm Core Height mm Inlet/Outlet Size Hose Size Heat Transfer Rate (BTU/HR)
Power Steering Cooler
1009 Tube & Fin 19 237 64 148 64 3/8" 9.5mm 3/8" (9.5mm) 1.2m 4000
Ultra-Cool Transmission Oil Cooler (Tube & Fin)
0401 Tube & Fin 20 326 128 245 128 3/8” 9.5mm 3/8” (9.5mm) 1.2m 9000
0403 Tube & Fin 20 326 191 246 191 3/8” 9.5mm 3/8” (9.5mm) 1.2m 10800
0404 Tube & Fin 20 395 191 316 191 3/8” 9.5mm 3/8” (9.5mm) 1.2m 12000
Hydra-Cool Transmission Oil Cooler (Plate & Fin)
0676 12 20 281 141 281 112 3/8” 9.5mm 3/8” (9.5mm) 1.4m 11987
0677 17 20 281 180 281 152 3/8” 9.5mm 3/8” (9.5mm) 1.4m 13394
0678 21 20 281 213 281 184 3/8” 9.5mm 3/8” (9.5mm) 1.4m 13934
0679 30  20 281 300 281  265 3/8” 9.5mm 3/8” (9.5mm) 1.4m 15710
Transmission Oil Cooler & Fan Combo Kits
0698 12V 21 76 281 213 281 184 3/8” 9.5mm 3/8” (9.5mm) 1.4m 13934
0699 24V 21 76 281 213 281 184 3/8” 9.5mm 3/8” (9.5mm) 1.4m 13934
0693 12V 23 76 281 213 247 200 3/8” 9.5mm 3/8” (9.5mm) 1.4m 13937
0694 24V 23 76 281 213 247 200 3/8” 9.5mm 3/8” (9.5mm) 1.4m 13937
0691 12V 30 76 281 300 281 265 3/8” 9.5mm 3/8” (9.5mm) 1.4m 15710
0692 24V 30 76 281 300 281 265 3/8” 9.5mm 3/8” (9.5mm) 1.4m 15710
Accessories
1005 5/16" (8mm) Adaptor Kit - Transmission Oil Cooler to suit GM transmissions
1006 Transmission Oil Cooler Fitting Kit (6R80) Suits Ford Ranger and Mazda BT50
0579 Quick Fit Kits
0444/0445/0500 Digital Thermatic / Electric Fan Switches

Transmission Oil Cooler Selection Guide

Vehicle Type Year Of Manufacture Engine Capacity Medium Duty Part No. Heavy Duty Part No.
Car - Saloon / Estate / Coupe Up To 1990 * Up to 2.0 Litre 401 403
Car - Saloon / Estate / Coupe Up To 1990 * 2.0 - 4.0 Litre 403 404
Car - Saloon / Estate / Coupe Up To 1990 * 4.0+ Litre 404 676 or 677
Car - Saloon / Estate / Coupe 1990 to Present Up to 2.0 Litre 676 677
Car - Saloon / Estate / Coupe 1990 to Present 2.0 - 4.0 Litre 677 Core Only:678 or 679
Core & Fan:698, 693 or 691
Car - Saloon / Estate / Coupe 1990 to Present 4.0+ Litre Core Only:678 or 679
Core & Fan:698, 693 or 691
Commercial Van
Commercial Van Up To 1990 * Up to 2.0 Litre 401 403
Commercial Van Up To 1990 * 2.0 - 4.0 Litre 404 676 or 677
Commercial Van Up To 1990 * 4.0+ Litre Core Only:678 or 679
Core & Fan:698, 693 or 691
Light Commercial (12V Circuit, Automatic Trans.)
Commercial Van 1990 to Present Up to 2.0 Litre 676 677 or 678
Commercial Van 1990 to Present 2.0 - 4.0 Litre 677 Core Only:678 or 679
Core & Fan:698, 693 or 691
Commercial Van 1990 to Present 4.0+ Litre Core Only:678 or 679
Core & Fan:698, 693 or 691
Light Commercial (24V Circuit, Automatic Trans.)
Commercial Van 1990 to Present Up to 2.0 Litre 699, 694 or 692
Commercial Van 1990 to Present 2.0 - 4.0 Litre 699, 694 or 692 692
Commercial Van 1990 to Present 4.0+ Litre 692 692
V8's & 4WD
V8's & 4WD Up To 1990 * Up to 2.0 Litre 676 677
V8's & 4WD Up To 1990 * 2.0 - 4.0 Litre Core Only:678 or 679
Core & Fan:698, 693 or 691
V8's & 4WD Up To 1990 * 4.0+ Litre Core Only:678 or 679
Core & Fan:698, 693 or 691
Ford EA-ED
Ford EA-ED All Models 6 cyl. 677 677
Ford EA-ED All Models V8's 678 678
Accessories
1005 5/16" (8mm) Adaptor Kit - Transmission Oil Cooler to suit GM transmissions
1006 Transmission Oil Cooler Fitting Kit (6R80) Suits Ford Ranger and Mazda BT50
0579 Quick Fit Kits
0444 / 0445 / 0500 Digital Thermatic / Electric Fan Switches