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My sisters '94 chevy was getting progressively worse. Rough running, stalling, and finally no start. Her "friend",who is a local diesel mechanic said it would be about $2000 for a new computer. I did some research, found this site, ordered the part and...
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I have a 2001 chevy van with a 6.5 turbo diesel, and I love the fuel mileage etc. but got tired of down time. Walt from S&S Diesel is the best! After five, yes five warranted fuel pumps from GM I figured something else was wrong. Then I found S&S Diesel....
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6.5TD C/K Trucks  >  Cooling System Upgrades & Components  >  Severe Duty Fan Clutch 99.5-02

Special Severe Duty Fan Clutch, all 6.5's 99.5 thru 2005 on all C/K trucks and Vans with a 6.5 Diesel

Severe Duty Fan Clutch 99.5-02

Severe Duty Fan Clutch 99.5-02

Model: ssd-9405 $207.00 $189.99
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We have had many requests to sell just the special clutch used in our ssd-022 Fan Upgrade kit, so here it is!

This clutch engages earlier then stock and is a Heavy Duty Clutch MADE IN USA. It is designed to adapt the Duramax HD fan blade to a 99-1/2 thru 2002 6.5 diesel "screw-on" type water pump shaft in C/K trucks and vans with serpentine belt CCW drive.

MAY ALSO BE USED AS A REPLACEMENT WITH OUR SSD-8663 WHEN USED ON 99.5+ VEHICLES.


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.

Our Special Clutches are specifically designed to engage at lower temperatures than the original equipment parts that they replace.

NOTE: Designed only for the vehicle and application specified above. Use on any other vehicle or application is at your own risk.

Severe Duty Fan Clutch 99.5-02

 

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