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Application:
Severe Duty Thermal Fan Clutch for 6.6T V8 Diesel Engine, APPLY to the fan blade with a pitch of 2 ½” or over
2001-2005 for Chevrolet Silverado 2500 HD
2001-2005 for Chevrolet Silverado 3500
2001-2005 for GMC Sierra 2500 HD
2001-2005 for GMC Sierra 3500
2006-2009 for Chevrolet Express 2500
2006-2009 for Chevrolet Express 3500
2006-2009 for GMC Savana 2500
2006-2009 for GMC Savana 3500
Please enter engine details in Amazon Part Finder(top of this page) to ensure fitment, or just email us we will help you soon.
Tips
*A fan blade with a pitch of 2 ½” or over, will require the use of either a Heavy Duty or a Severe Duty fan clutch
*Heavy Duty fan clutch will lock up 70 to 80 percent when engaged
*Severe Duty fan clutch will lock up 80 to 90 percent when engaged
*Heavy/Severe duty Fan clutches are applied on vehicles with a higher demand for airflow than passenger cars and light trucks
*Increasing the pitch on the fan blade will increase airflow, and the resistance on the fan clutch will also need to be increased.
*Severe Duty Fan Clutches have the same relative operation as Heavy Duty fan clutches.
*Proper tools were necessary to replace fan clutch
*Professional Installation was Highly Recommended.
SMT Machining, LLC
Reviewed in the United States on September 30, 2024
This product states that it locks up the fan clutch at 70%-90% of shaft speed. After installing this fan clutch my engine temps jumped up by 30 degrees compared to my previous Hayden that i was replacing. Both are severe duty fan clutches but this did not help bring down engine temps. It did the complete opposite. I had a feeling it would not work properly as the nut rotated with ease instead of having lots of resistance. Don't waste your money on this. Buy a Hayden or a Murray.
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