Hayden Products Features

Transmission Coolers

Features:

Over 14 million transmissions fail every year, 9 out of 10 from overheating. Every 20° drop in operating temperature can double oil and equipment life. Use a transcooler if you:

• Tow boats, trailers or fifth wheels
• Drive in stop-and-go traffic
• Climb steep grades
• Drive in hot weather

Ultra-Cool® Transmission Oil Coolers. The industry's first transmission cooler, the Ultra-Cool® transmission oil cooler is available in six sizes to fit a wide range of applications from sub-compacts to motorhomes.

Features:

• Ultrasonically soldered for reliability
• 100% pressure tested at 150 PSI for quality assurance
• High efficiency turbulators in every tube for maximum heat dissipation
• 3/8” push-on fittings for quick and easy installation

Rapid-Cool® Transmission Oil Coolers. Rapid-Cool®’s unique plate and fin design offers excellent cooling efficiency in a compact, space-efficient design.

Features:

• 33% more efficient than a comparable tube and fin design
• Pre-drilled mounting plates for easy installation
• Four sizes available to fit a wider range of applications
• Internal turbulation for efficient heat transfer
• 3/8” push-on fittings for quick and easy installation

Rapid-Cool ® Heavy-Duty Transmission Oil Coolers. Hayden’s 37mm heavy duty plate / fin coolers are ideal for Transmission and Engine oil cooling applications requiring higher flow range and increased heat transfer capacity in a compact space.

Features:

• Pre-drilled Mounting Brackets for Easy Installation
• 3 Sizes Available to Handle a Wide Range of Applications
• Patented Internal Turbulation for Increased Heat Transfer & Minimal Pressure Drop
• 37° JIC Male Flare (-12) Fittings for Maximum Flow Capacity

High Performance Transmission Oil Coolers. Available in three sizes for medium to heavy duty applications, our high performance cooler is designed to provide outstanding cooling, as well as to complement other high performance accessories.

Features:

• SAE 45 degree fittings for maximum reliability
• All aluminum Lightweight construction
• Electrostatically powder coated to prevent corrosion

Remote Transmission Oil Cooling Systems. Our remote mount cooling systems use the most advanced stator fans to evenly distribute airflow over the cooler surface for maximized cooling. Both units can be remotely mounted away from the radiator. Compatibility with model 3651 adjustable fan control, or can be operated with a manual switch (not included).

Features:

• Anodized brushed aluminum brackets
• Fan and cooler preassembled
• Remote mounting
• Stator fan blade technology

Power Steering Oil Cooler

Our power steering oil cooler removes destructive heat generated within a power steering system, especially in vehicles with large tires such as, motorhomes and off-road vehicles. Installation of a power steering oil cooler will prolong the life of the system’s pump, hoses, and seals.

Ultra-Cool® Engine Oil Coolers - Light Duty

Features:

• Lightweight all aluminum construction
• Ultrasonically soldered for maximum reliability
• Turbulators in every tube for efficient cooling
• Part #462 specially designed for Chevrolet V8 engines

Ultra-Cool® Engine Oil Coolers - Medium Duty.

Features:

• Two-pass thin-line headered design for increased cooling
• 100% hand-brazed construction
• Turbulators in every tube for efficient cooling
• Part #461 specially designed for Chevrolet V8 engines

Swirl Cool® - Heavy Duty

Features:

• Copper header and tube construction
• Inner-swirl® turbulator in every tube for maximum cooling and efficiency
• Vibration absorbing rubber block mounting
• 1-1/2” thick headered design for increased cooling and efficiency
• Minimal pressure loss due to headered design
• Part #1046 designed for Chevrolet V8 engines

Most of today’s vehicles use Idler Pulleys to assist in belt routing and tensioning within the accessory drive system. Air conditioning compressors, alternators, power steering pumps, and water pumps are aided by the function of Idler Pulleys. All Idler Pulleys are of the highest quality and meet or exceed OE specifications.

Over 100 million vehicles on the road today use a belt tensioner. Belt tensioners maintain constant tension on the belt to extend both belt and accessory drive bearing life. They offer a full product line covering most domestic and import vehicles. All our belt tensioner assemblies are original equipment quality for long life and easy replacement. Refer to the following application section for the correct belt tensioner assembly or replacement pulley for the tensioner.

Fan Clutch Operation & Troubleshooting

The Fan Clutch is a component of the cooling system that varies the fan speed to meet the cooling needs of the engine. Nearly all rear wheel drive vehicles use Fan Clutches to control fan speed because of their ability to provide high volumes of air and good fuel economy. Despite their popularity, they are one of the least understood cooling components. There are two types of Fan Clutches, the Non-Thermal (also called centrifugal clutches) and the Thermal Fan Clutch.

Non-Thermal Fan Clutch

• Low cost alternative for some standard thermal clutches.
• Always engaged, less fuel savings than a thermal clutch.
• Spins at about 30-60% of the water pump speed.
• Shorter life expectancy.
• Cannot replace a heavy-duty clutch.
• Identified by the smooth, steel faceplate, (without a thermal spring assembly), on the front.

Thermal Fan Clutch

• Varies the fan speed with temperature of the air behind the radiator.
• Engaged (high speed) operation provides maximum cooling.
• Disengaged (low speed) operation provides fuel savings and noise reduction.
• Greater life expectancy than a non-thermal clutch.
• Briefly engaged at cold start-up.
• Engages at about 170° radiator air temperature, (about 30° lower than coolant temperature).

The air temperature coming through the radiator is sensed by the bi-metal thermal spring on the front of the thermal fan clutch. It expands and contracts with the change in air temperature operating a valve inside of the clutch. When cold, the silicone drive fluid is pumped from the working area to the reservoir. When hot, the valve opens allowing fluid from the reservoir to be transferred to the working area thereby increasing the fan speed. The clutch disengages as the air temperature decreases, closing the valve and allowing the silicone fluid to be pumped back into the reservoir.

A thermal fan clutch is engaged on a cold startup because the fluid drains into the working area when the engine is shut off. The fan clutch will slow down shortly after startup as a result of a pumping action produced by a difference in speed between the shaft and the body of the clutch.

Most models are designed to duplicate original equipment performance. Some Chevrolet/GMC truck models are specifically designed to engage at lower temperatures than the original equipment parts that they replace.

Thermal Fan Clutch Design Types

They make three different types of thermal fan clutches; Standard, Heavy and Severe Duty. Each type is engineered to simulate the performance, fit and appearance of the original equipment clutch that it replaces. All fan clutches are for specific applications and should only be applied for which they are cataloged. Use of the wrong fan clutch may result in poor cooling, excess noise, reduced mileage, or fan clutch failure.

Standard Duty Thermal

• Turns fan 60-70% of shaft speed when engaged.
• Disengage to 20-30% of the shaft speed
• Used with lighter pitch fans. (1-1/2” of pitch).
• Flat plate impeller design with 11.4 Sq. In. of working surface.
• Identified by a smooth steel faceplate & thermal spring assembly on the front side.

Heavy-Duty Thermal

• Turns the fan 80-90% of the shaft speed when engaged for increased cooling.
• Turns the fan 20-30% of the shaft speed when disengaged.
• Used with deeper pitch fans. (2 -1/2” of pitch).
• Land and groove design with 26.0 Sq. In. of working area allows higher operating RPM’s.
• Identified by finned aluminum faceplate and thermal spring on the front.

Severe Duty Thermal

• Turns the fan 80-90% of the shaft speed when engaged.
• Turns the fan 20-30% of the shaft speed when disengaged.
• Used with deeper pitch fans. (2 -1/2° of pitch).
• Land and groove design with 70 Sq. In. of working area.
• Larger working surface provides cooler running and longer life expectancy.
• Thicker body and deep finned faceplate dissipate more heat.
• Can be used in place of many heavy-duty clutches.

Fan Truck Drives

Hayden now has available Truck Fan Drives for Ford and General Motors medium-duty trucks and buses.