2787 Severe Duty Thermal Fan Drive Clutch for GM 2004-2012 Colorado/Canyon 3.5 3.7L, 2006-10 H3/H3T, 1996-99 P30/3500 5.7L, 1997-08 W3500/W4500 Forward/NPR, 00-08 Tiltmaster/NPR-HD, 07 08 i-370

Application:Severe Duty Thermal Fan Clutch, APPLY to the fan blade with a pitch of 2 ½” or over2004-2012 for Chevrolet Colorado2004-2012 for GMC Canyon2000-2008 for Chevrolet W3500 Tiltmaster1997-2008 for GMC W3500 Forward1998-2008 for GMC W4500 Forward1996-1999 for GMC P35002006-2010 for Hummer H32009-2010 for Hummer H3T1997-2008 for Isuzu NPR2000-2008 for Isuzu NPR-HD2007-2008 for Isuzu i-370Please enter engine details in Amazon Part Finder to ensure fitment.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.*Severe Duty Fan Clutches have the same relative operation as Heavy Duty fan clutches.*Proper tools were necessary *Professional Installation was Highly Recommended.

• 【OEM Fit & Replace】Compatible for GM. 2004-2012 Colorado/Canyon 3.5 3.7L, 2006-2010 H3/H3T, 1996-1999 P30/3500 5.7L, 1997-08 W3500/W4500 Forward/NPR, 2000-08 Tiltmaster/NPR-HD, 2007 08 i-370. Interchange: 15-40508, 15106619, 25948772, 15735393, 8-25948-772-0. Please Use Amazon Part Finder to Verify Application.
• 【Severe Duty Fan Clutches】Severe Duty clutches will lock up 70-90% of the shaft speed when engaged, [APPLY to the fan blade with a pitch of 2 ½” or over]. If the wrong type of fan clutch is installed, the fan may spin freely, cause poor cooling or too noisy, and result in reduced mileage, or fan clutch failure.
• 【Real OE-Standard】All VIPCAR Fan clutches applied denser & deeper radiating finned design to ensure performance, manufactured by ISO/TS16949 certified OE Supplier, made in accordance with international automotive spare parts production specifications, so as to reduce noise, improve engine economy, and protect the engine from overheating. Real Meet or Exceed OE Standards.
• 【Strict Ex-Factory Tests】Specialized testing not limited to Speed and or Vibration/ Durability/Loading Performance/High-Low Temperature Fatigue /Metallographic Detection Device/Salt Spray Test Machine/Spring Tension & Compression Test/Swing Machine, Rockwell/Brinell/Shore Hardness Tester, Contourgraph Measuring, Torque Testing Online, etc.
• 【Service】All VIPCAR engine water pump provide 12-Month/30,000 Miles Protection Plan. For any pre or after-sale replacements or performance questions or solutions, just email us and we will provide a professional, friendly, and supportive reply within 24 hours, let's hit it