Davies Craig Transmission Oil Coolers features and benefits:

Arrow Bullet Point 32x32 (22Oct2015).pngGuaranteed up to 80psi Arrow Bullet Point 32x32 (22Oct2015).png100% Australian made
Arrow Bullet Point 32x32 (22Oct2015).pngRace proven performance Arrow Bullet Point 32x32 (22Oct2015).pngHigh corrosion resistance
Arrow Bullet Point 32x32 (22Oct2015).pngHigh heat transfer design Arrow Bullet Point 32x32 (22Oct2015).pngState of the art controlled atmosphere brazing process
Arrow Bullet Point 32x32 (22Oct2015).pngRevolutionary fin pitch and louver angle Arrow Bullet Point 32x32 (22Oct2015).pngLow pressure drop due design configuration


Because of 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:

Arrow Bullet Point 32x32 (22Oct2015).pngTowing

Arrow Bullet Point 32x32 (22Oct2015).pngClimbing

Arrow Bullet Point (22Oct2015).pngStop & go traffic

Arrow Bullet Point 32x32 (22Oct2015).pngCarrying loads

Arrow Bullet Point 32x32 (22Oct2015).pngHot driving conditions

Arrow Bullet Point 32x32 (22Oct2015).pngDriving 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 i 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 vehcles

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.
Fluid Capacity

Part #676 - 80 ml
Part #677 - 100 ml
Part #678 - 120 ml
Part #679 - 160 ml
Part #686 - 100 ml (same 17-plate core as #677)
Part #691 - 160 ml (same 30-Plate core as #679)
Part #698 - 120 ml (same 21-plate core as #678)

Please visit our buy online section to view the Davies Craig TRANMISSION OIL COOLER range.