Universal 3/8" Hose | Part Number: #677
The Davies Craig Hydra-Cool® 17 Plate Transmission Oil Cooler is a premium cooling solution engineered to keep automatic transmission fluid (ATF) at its optimum operating temperature. Featuring advanced plate & fin technology, the Hydra-Cool® design delivers superior heat transfer while requiring up to 33% less space than a comparable tube & fin cooler, making it ideal where mounting space is limited.
Designed for performance vehicles, 4WDs, towing, commercial fleets and motorsport applications, the Hydra-Cool® 17 Plate Oil Cooler efficiently dissipates excess heat to protect your transmission from premature wear and costly repairs. High-efficiency internal turbulators maximise heat transfer while maintaining low pressure drop for optimum cooling performance. Every Hydra-Cool® Oil Cooler is manufactured from lightweight aluminium and 100% pressure tested to 150 psi to ensure long-term reliability.
Recommended for:
| Specification | Details |
|---|---|
| Part Number | 677 |
| Cooler Type | Hydra-Cool® Plate & Fin |
| Number of Plates | 17 |
| Construction | Aluminium |
| Overall Dimensions | 281 × 180 × 20 mm |
| Core Dimensions | 281 × 152 mm |
| Hose Size | 3/8" (9.5 mm) |
| Heat Transfer Capacity | 13,394 BTU/hr |
| Fluid Capacity | 56.7 ml |
| Pressure Tested | 150 psi |
Specifications sourced from the Davies Craig product range.
Heat is one of the leading causes of automatic transmission failure. Heavy towing, stop-start traffic, off-road driving, steep climbs and performance driving all increase transmission fluid temperatures, reducing fluid performance and accelerating wear on internal transmission components.
The Davies Craig Hydra-Cool® 17 Plate Transmission Oil Cooler removes excess heat before the fluid returns to the transmission, helping maintain optimum operating temperatures, improve shift quality and significantly extend transmission and transmission fluid life. Its premium plate & fin construction provides greater cooling efficiency in a more compact package, making it the ideal upgrade where maximum performance and limited installation space are important.
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SPECIFICATION & RANGE Transmission & Engine Oil Coolers |
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| Part # | Image | Plates | Thickness mm |
Overall | Core | Inlet/Outlet Size |
Hose Size | Heat Transfer Rate (BTU/HR) |
Fluid Capacity |
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| Width mm | Height mm | Width mm | Height mm | ||||||||
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Power Steering Cooler & Ultra-Cool Transmission Oil Cooler (Tube & Fin) |
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| 1009 |  |
Tube & Fin |
19 | 237 | 64 | 148 | 64 | 3/8” 9.5mm |
3/8” (9.5mm) 1.2m |
4,000 | 43ml |
| 401 |  |
20 | 326 | 128 | 245 | 128 | 9,000 | 122ml | |||
| 403 |  |
20 | 326 | 191 | 246 | 191 | 10,800 | 207ml | |||
| 404 |  |
20 | 395 | 191 | 316 | 191 | 12,000 | 248ml | |||
| Hydra-Cool Transmission Oil Cooler (Plate & Fin) | |||||||||||
| 676 |  |
12 | 20 | 281 | 141 | 281 | 112 | 3/8” 9.5mm |
3/8” (9.5mm) 1.4m |
11,987 | 81ml |
| 677 |  |
17 | 20 | 281 | 180 | 281 | 152 | 13,394 | 115ml | ||
| 678 |  |
23 | 20 | 281 | 229 | 281 | 200 | 13,937 | 158ml | ||
| 679 |  |
30 | 20 | 281 | 300 | 281 | 265 | 15,710 | 201ml | ||
| Transmission Oil Cooler & Fan Combo Kits | |||||||||||
| 698 (12V) |
|
23 | 76 | 281 | 229 | 281 | 200 | 3/8” 9.5mm |
3/8” (9.5mm) 1.4m |
13,937 | 158ml |
| 699 (24V) | |||||||||||
| 691 (12V) | 30 | 76 | 281 | 300 | 281 | 265 | 15,710 | 201ml | |||
| 692 (24V) | |||||||||||
| Universal Engine/Transmission Oil Cooler | |||||||||||
| 602 |  |
14 | 32 | 258 | 224.5 | 258 | 185.5 | AN10 ORB | N/A | 21,000 | 500ml |
| 605 |  |
19 | 50 | 330 | 166 | 285 | 142 | 37,000 | 440ml | ||
| 610 |  |
30 | 50 | 330 | 249 | 285 | 226 | 50,000 | 690ml | ||
| 616 |  |
14 | 32 | 258 | 224.5 | 258 | 185.5 | M16 | N/A | 21,000 | 500ml |
| Universal Engine/Transmission Oil Cooler & Fan Combo Kits | |||||||||||
| 600 (12V) |  |
14 | 87 | 258 | 224.5 | 258 | 185.5 | AN10 ORB | N/A | 21,000 | 500ml |
| 608 (12V) |  |
30 | 106 | 330 | 249 | 285 | 226 | 50,000 | 690ml | ||
| 614 (12V) |  |
14 | 87 | 258 | 224.5 | 258 | 185.5 | M16 | N/A | 21,000 | 500ml |
| 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 | |||||||||
| 1007 |  |
Transmission Temperature Sensor Adapter Kit - suits 3/8” Hose and 1/4” NPT Sensor | |||||||||
| 1008 |  |
AN10 ORB to 3/8" Push on Hose Barb Fitting | |||||||||
| 1010 |  |
Transmission Oil Cooler Fitting Kit (AN10 ORB to 3/8" Hose) | |||||||||
| 579 |  |
Quick Fit Kits (Mounting Kit) | |||||||||
| 0444 0445 0500 |
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Digital Thermatic® / Electric Fan Switches | |||||||||
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PRODUCT SELECTION GUIDE Transmission & Engine Oil Coolers |
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Vehicle Type |
APPLICATION |
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| Standard Duty / No Towing | Medium Duty/Light Towing | Heavy Duty/Heavy Towing | Super heavy Duty Transmission cooler or Engine oil cooler | |
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Part Number |
Part Number |
Part Number |
Part Number |
|
| 4 Cyl. Up to 1990* |
#401 or #676 |
#403 or #676 |
#404 or #677 |
#602 |
| 6 Cyl. Up to 1990* |
#403 or #676 |
#404 or #677 |
#678 or #679 |
#602 |
| 8 Cyl. Up to 1990* |
#404 or #677 |
#678 | #679 |
#602 or #605 |
| Small Car | #676 | #677 | #678 |
#602 or #605 |
| Sedan / Wagon | #677 | #678 | #679 |
#602 or #605 or #610 |
| 4WDs & SUV | #678 | #679 | #602 |
#605 or #610 |
| Commercial | #678 | #679 |
#602 or #605 |
#610 |
| Cooler and Fan combo recommended for low-speed driving/towing and off-road applications | ||||
| Small Car |
#698 (12V) #699 (24V) |
#698 (12V) #699 (24V) |
#698 (12V) #699 (24V) |
#600 (12V) or #614 (12V) or #608 (12V) |
| Sedan / Wagon |
#698 (12V) #699 (24V) |
#698 (12V) #699 (24V) |
#691 (12V) #692 (24V) |
#600 (12V) or #614 (12V) or #608 (12V) |
| 4WDs & SUV |
#698 (12V) #699 (24V) |
#691 (12V) #692 (24V) |
#600 (12V) #692 (24V) |
#600 (12V) or #614 (12V) or #608 (12V) |
| Commercial |
#698 (12V) #699 (24V) |
#691 (12V) #692 (24V) |
#600 (12V) #692 (24V) |
#608 (12V) |
| Oil Cooler Accessories recommended for specific Transmissions | ||||
| GM-Holden Transmission | Select cooler as above plus #1005 | Select cooler as above plus #1005 | Select cooler as above plus #1005 | Select cooler as above plus #1005 |
| 6R80 Transmission | Select cooler as above plus #1006 | Select cooler as above plus #1006 | Select cooler as above plus #1006 | Select Part # as above plus #1006 |
| Power Steering Oil Cooler | ||||
| Vehicle | Standard Duty | Medium Duty | Heavy Duty | Super heavy Duty |
| All Vehicles | #1009 | #401 | #403 | #404 |
