Transmission Oil Cooler - Ultra-Cool 6 Cylinder Engines

Universal 3/8" Hose | Part Number: #403

Protect your automatic transmission from excessive heat with the Davies Craig Ultra-Cool^® Transmission Oil Cooler. Engineered to reduce transmission fluid temperatures, this universal aluminium tube-and-fin cooler helps prevent overheating, extends transmission life and improves reliability under demanding driving conditions.

Designed for 6-cylinder vehicles manufactured prior to 1990, the Ultra-Cool^® #403 is ideal for daily driving, towing, touring and light commercial applications where additional transmission cooling is required. It can also be used as a medium-duty power steering oil cooler.

Manufactured from lightweight aluminium and 100% pressure tested for durability, every Ultra-Cool^® kit includes everything required for a simple, professional installation.

Features

• Reduces automatic transmission fluid temperatures
• Protects against heat-related transmission damage
• Extends transmission and fluid service life
• Lightweight aluminium tube-and-fin construction
• Universal fit for a wide range of vehicles
• 100% pressure tested for quality and reliability
• Designed for 6-cylinder vehicles manufactured prior to 1990
• Suitable as a medium-duty power steering oil cooler
• Complete installation kit included
• Designed and engineered by Davies Craig

Applications

Recommended for:

• 6-cylinder passenger vehicles (pre-1990)
• Touring vehicles
• Light towing applications
• Performance street vehicles
• Light commercial vehicles
• Medium-duty power steering cooling

Kit Contents

• 1 × Ultra-Cool® Transmission Oil Cooler
• 1 × 1.2m (3/8") Transmission Hose
• 1 × Radiator Connector / Adapter
• 4 × Hose Clamps
• 2 × Quick Fit Mounting Kits (4 Nylon Mounting Ties per Kit)
• Installation Instructions

Specifications

Note: Dimensions and BTU rating should be confirmed against the product specifications before publishing.

Why Install a Transmission Oil Cooler?

Automatic transmissions generate significant heat, particularly during towing, heavy traffic, off-road driving and long highway trips. Excessive transmission temperatures accelerate fluid breakdown and increase wear on internal components, leading to reduced performance and costly repairs.

The Davies Craig Ultra-Cool® Transmission Oil Cooler removes excess heat from the transmission fluid before it returns to the transmission, helping maintain optimum operating temperatures, improving shifting performance and extending transmission life.

SPECIFICATION & RANGE Transmission & Engine Oil Coolers
Part #	Image	Plates	Thickness  mm	Overall		Core		Inlet/Outlet Size	Hose Size	Heat Transfer Rate (BTU/HR)	Fluid Capacity
				Width mm	Height mm	Width mm	Height mm
Power Steering Cooler &  Ultra-Cool Transmission Oil Cooler (Tube & Fin)
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