Universal 12 Volt | Part Number: #698
The Davies Craig Hydra-Cool® 23 Plate Transmission Oil Cooler & 8" Thermatic® Fan Combo is a complete heavy-duty transmission cooling solution designed to keep automatic transmission fluid (ATF) operating at its optimum temperature, even when natural airflow is limited. Combining the premium Hydra-Cool® 23 Plate Plate & Fin Oil Cooler with a high-performance 8" Thermatic® Electric Fan, this kit delivers maximum cooling performance during towing, off-road driving, heavy traffic, motorsport and sustained high-speed driving.
Featuring advanced plate & fin technology, the Hydra-Cool® oil cooler provides superior heat transfer while requiring up to 33% less mounting space than comparable tube & fin coolers. The included 12V Thermatic® Electric Fan ensures consistent airflow through the cooler core, making it ideal for vehicles where airflow is restricted or operating conditions are particularly demanding. Every Hydra-Cool® cooler is manufactured from lightweight aluminium and 100% pressure tested to 150 psi for maximum durability and reliability.
Recommended for:
| Specification | Details |
|---|---|
| Part Number | 698 |
| Cooler Type | Hydra-Cool® Plate & Fin |
| Number of Plates | 23 |
| Fan Size | 8" Thermatic® Electric Fan |
| Fan Voltage | 12V |
| Construction | Aluminium |
| Overall Dimensions | 281 × 229 × 76 mm |
| Core Dimensions | 281 × 200 mm |
| Hose Size | 3/8" (9.5mm) |
| Heat Transfer Capacity | 13,937 BTU/hr |
| Fluid Capacity | 76.7 ml |
| Pressure Tested | 150 psi |
Automatic transmissions generate significant heat during towing, slow-speed off-road driving, heavy traffic and high-performance use. In these situations, airflow through a conventional oil cooler can be limited, reducing cooling efficiency.
The Davies Craig Hydra-Cool® 23 Plate & 8" Thermatic® Fan Combo ensures constant airflow through the oil cooler regardless of vehicle speed, maintaining optimum transmission temperatures even under the harshest operating conditions. This complete cooling package helps extend transmission life, improve shift performance and reduce the risk of costly transmission failures. For automatic fan operation, Davies Craig recommends pairing this kit with the Digital Thermatic® Fan Switch (Part No. 0444/0480 GEN II).
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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 |
 |
Digital Thermatic® / Electric Fan Switches | |||||||||
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PRODUCT SELECTION GUIDE Transmission & Engine Oil Coolers |
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|---|---|---|---|---|
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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 |
