Fan Clutch, AISIN Pink Hub; Tacoma ’05 – ’15, 4Runner ’03 – ’09, Tundra ’05 – ’10, FJ Cruiser ’07 – ’09 – RL1291-STOCK

The automotive fan clutch is a vital cooling mechanism that provides fan speed control in proportion to engine revolutions per minute. Engineered to Toyota’s exacting original equipment specifications, AISIN fan clutches quickly adjust to temperature changes, providing efficiency and control while maintaining optimal cooling performance without compromising engine efficiency. AISIN fan clutches are always matched as original equipment. AISIN is a leader in the development and production of high-quality original equipment matched components and systems for your Toyota 2005 – 2015 Tacoma, 2003 – 2009 4Runner, 2005 – 2010 Tundra, and 2007 – 2009 FJ Cruiser.

Now that we own a second-generation Tacoma, we will be modifying and testing the AISIN fan clutch, just as we offer for the 80-Series Land Cruiser. Our modified OEM AISIN fan clutch engages at 95 degrees, compared to the higher temperature engagement. We change the CST Fluid formula and adjust the temperature springs to achieve a long-term solution with a higher “lock up” rate. This is also known as the “Blue Hub Fan Clutch Mod“. This modification is very popular because it correctly matches the fan engagement to the water pump rotation dynamics. Read our “Elevation Doesn’t Care! Keeping Land Cruisers Cool!“