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  • Davies Craig Transmission Oil Cooler Kit, 23 Plate Hydra-Cool, 3/8" Hose Size, DC-623
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Davies Craig Transmission Oil Cooler Kit, 23 Plate Hydra-Cool, 3/8" Hose Size, DC-623
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Davies Craig Transmission Oil Cooler Kit, 23 Plate Hydra-Cool, 3/8" Hose Size, DC-623

MKG3128
In stock
$165.92 $156.61
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$156.61
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Davies Craig Transmission Oil Cooler Kit, 23 Plate Hydra-Cool, 3/8" Hose Size, DC-623
Description

The Davies Craig Hydra-Cool Transmission Oil Cooler (DC-623) is the smart, economical way to protect your automatic gearbox. Built for 4.2L engines and larger, this cooler uses high-efficiency turbulators and a unique plate & fin design to deliver 33% more cooling efficiency while requiring less space, making it ideal for tight engine bays.

Whether you’re towing heavy loads, hauling gear, or navigating stop-and-go traffic, overheating can cause costly transmission damage. The Hydra-Cool Oil Cooler keeps fluid temperatures in the optimal range, ensuring smoother shifts, longer transmission life, and peace of mind on Kiwi roads.

Compact yet powerful, this cooler is pressure tested at 150psi for durability and comes with pre-drilled mounting plates and push-on fittings for quick installation. It’s the perfect upgrade for everyday drivers, off-roaders, and performance enthusiasts alike.


Features and Benefits

  • 33% More Efficient Cooling – Plate & fin design outperforms tube & fin alternatives.

  • Compact Design – Requires 33% less space, perfect for tight bays.

  • Pressure Tested at 150psi – Ensures durability and reliability.

  • Easy Installation – Pre-drilled plates and push-on fittings simplify setup.

  • Superior Heat Transfer – Internal turbulation maximizes cooling performance.

  • Protects Transmission – Prevents overheating during towing, heavy loads, or city traffic.


Reliable Cooling for Kiwi Conditions

With the Hydra-Cool Transmission Oil Cooler DC-623, you’ll enjoy cooler gearbox temps and longer transmission life. From towing caravans across the North Island to navigating Auckland traffic, this kit keeps your transmission running sweet as.


Technical Specifications

Specification Detail
Core Thickness 20mm
Core Width 247mm
Core Height 200mm
Inlet/Outlet 3/8" (9mm)
Number of Plates 23
Pressure Tested 150psi


What’s Included

  • Cooler Core x1

  • 3/8" Hose x1 (1.4m)

  • Hose Clamps x4

  • Quick Fit Kit Nylon Ties x4

  • Detailed Instructions x1

 

REVIEWS

M.R.

Installed the DC-623 on my Land Cruiser in Hamilton. Towing the caravan is smoother now, gearbox temps stay steady even on long climbs. Easy install and solid build quality.

Mark R.

Hamilton, Waikato

★★★★★
S.K.

Running this cooler on my Patrol in Christchurch. Keeps the transmission cool even when hauling heavy loads. Compact size fits perfectly in a tight bay. Highly recommend.

Steve K.

Christchurch, Canterbury

★★★★★
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