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Transmission Oil Cooler 23 Plate Hydra-Cool (Part #623)
The Hydra-Cool transmission oil cooler is an effective & 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 & 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.
KIT CONTENTS
| DESCRIPTION | UNITS |
| Hydra-Cool 23-plate transmission oil cooler | 1 |
| 3/8” hose (1.4 meters) | 1 |
| Hose clamps | 4 |
| Quick Fit Kits – nylon ties x4 | 2 |
| Instructions | 1 |
RANGE & SPECIFICATIONS
| Part # | Plates | Thickness | Overall | Core | Inlet/Outlet | Hose Size | Heat Transfer | |||
| Width mm | Height mm | Width mm | Height mm | |||||||
| Power Steering Cooler | ||||||||||
| 1009 | Tube | 19 | 237 | 64 | 148 | 64 | 3/8” | 3/8” (9.5mm) | 4,000 | |
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| ||||||||||
| Ultra-Cool Transmission Oil Cooler (Tube & Fin) | ||||||||||
| 401 | Tube | 20 | 326 | 128 | 245 | 128 | 3/8” | 3/8” (9.5mm) | 9,000 | |
| 403 | 20 | 326 | 191 | 246 | 191 | 10,800 | ||||
| 404 | 20 | 395 | 191 | 316 | 191 | 12,000 | ||||
| Hydra-Cool Transmission Oil Cooler (Plate & Fin) | ||||||||||
| 676 | 12 | 20 | 281 | 141 | 281 | 112 | 3/8” | 3/8” (9.5mm) | 11,987 | |
| 677 | 17 | 20 | 281 | 180 | 281 | 152 | 13,394 | |||
| 678 | 21 | 20 | 281 | 213 | 281 | 184 | 13,934 | |||
| 623 | 23 | 20 | 281 | 229 | 247 | 200 | 13,937 | |||
| 679 | 30 | 20 | 281 | 300 | 281 | 265 | 15,710 | |||
| Transmission Oil Cooler & Fan Combo Kits | ||||||||||
| 698 (12V) | 21 | 76 | 281 | 213 | 281 | 184 | 3/8” | 3/8” (9.5mm) | 13,934 | |
| 699 (24V) | ||||||||||
| 693 (12V) | 23 | 76 | 281 | 213 | 247 | 200 | 13,937 | |||
| 694 (24V) | ||||||||||
| 691 (12V) | 30 | 76 | 281 | 300 | 281 | 265 | 15,710 | |||
| 692 (24V) | ||||||||||
| 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 | |||||||||
| 579 | Quick Fit Kits | |||||||||
| 0444, 0445 | Digital Thermatic / Electric Fan Switches | |||||||||
TRANSMISSION OIL COOLER SELECTION
| APPLICATION |
| RECOMMENDED PART | |||||||||||||||
| Vehicle Type | Year of Manufacture | Engine Capacity |
| Medium Duty Part # | Heavy Duty Part # | ||||||||||||
| Sedan / Wagon | Up to 1990* | Up to 2.0 litre |
| 401 | 403 | ||||||||||||
| 2.0 - 4.0 litre |
| 403 | 404 | ||||||||||||||
| 4.0 litre + |
| 404 | 676 or 677 | ||||||||||||||
| Commercial | Up to 1990* | Up to 2.0 litre |
| 401 |
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