For Dodge Charger 66-78 Hayden Standard Duty Thermal Engine Cooling Fan Clutch
Product Details
Standard Duty Thermal Engine Cooling Fan Clutch (2706) by Hayden®. Rotation: Standard. Hayden Automotive engineers, manufactures and supplies a wide range of products designed to keep your car, truck or performance vehicle running cool. From fan clutches and electric fans to performance oil and transmission coolers, we’ve got what you need to protect your vehicle from damaging and performance robbing heat. Hayden Automotive - products engineered and built to take the heat, so your vehicle won’t.
Specifications:
- Mounting Hole/Stud Qty: 4
- Bolt Quantity: 4
- Bolt Thread: 5/16-18 Hole
- Clutch Type: B - Non-Thermal and Std Thermal
- Color: Raw Aluminum in Color
- Description: Fan Clutches
- Drawing Type: B
- Duty Rating: Standard
- Electronic Fan Clutch: Non Electronic
- Fan Bolt Circle : 3.250"
- Fan Mount Dia. : 2.62"
- Fan Mount Height : 1.750"
- Material: Aluminum
- Meets or Exceeds OEM Specs: Yes
- Mount Dia. : 2.59"
- Mount Type: Flange
- Mounting Hardware Included: Not Included
- New or Remanufactured: New
- Original Equipment Replacement: Yes
- Overall Dia. : 7.200"
- Overall Height : 3.296875"
- Performance Rated: Yes
- Pilot Depth : 1.03125"
- Pilot Dia. : 0.63"
- Rotation: STD
- Style: Standard Duty
- Type: Thermal
Features:
- Flat plate impeller design with 11.4 sq. in. of working surface
- Turns the fan 60-70% of the shaft speed when engaged
- Turns the fan 20-30% of the shaft speed when disengaged
- Used with lighter pitch fans (1-1/2” of pitch)
- Identified by a smooth steel faceplate and thermal spring assembly on the front side
- Longer service life than a non-thermal fan clutch
A fan clutch is the part of the cooling system that powers up the fan blades. Each time your engine gets too hot, the clutch fully engages the fan. This allows the fan to blow the right amount of air onto your radiator for maximum cooling. Once the operating temperature of the engine goes down or the engine starts operating at a normal temperature, the clutch partially disengages the fan to save more power.
There are two types of fan clutches, non-thermal and thermal. Thermal fan clutches are a little more sophisticated and operate in response to underhood temperatures. A bi-metal thermal spring mounted at the front of the clutch senses the underhood temperature and operates the fan clutch accordingly. When the engine is cold, the fan is disengaged, providing fuel economy and noise reduction. When too much heat is generated, the clutch allows the fan to rotate really fast to cool the engine faster. The 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 clutch body. Thermal fan clutches are available in standard duty, heavy duty, and severe duty options. If your fan spins excessively when the engine is stopped, the A/C performance is poor at idle or low vehicle speeds, or you feel vibration that increases with the engine speed, these are the signs of the failed fan clutch. Replace it with premium product from Hayden.
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