Derale HO RAD Dual 12 in Electric Fan - Puller - 4000 CFM - 12V - Curved Blade - 28-1/4 x 17 in - 4 in Thick - Aluminum Shroud H76015FS The backspacing is 1

The backspacing is 1

5" - Chrome SC-SU-0930 at low everyday prices

A MOMO horn is button included and the wheel is pre-drilled in the standard 6-bolt pattern

070 in Thick

Derale HO RAD Dual 12 in Electric Fan - Puller - 4000 CFM - 12V - Curved Blade - 28-1/4 x 17 in - 4 in Thick - Aluminum Shroud H76015FS The backspacing is 1Derale Dual Radiator Fan w Aluminum Shroud Assembly 16838 Dual Electric Fan 13" Diameter Fans w Shroud 28. 250" Width 17. 000" Height 3. 440" Thick Designed for primary cooling Raw aluminum shroud construction can be polished, painted or anodized High Output 300 watt motors 4000 CFM Ultra quiet patented skewed blade design Multiple mounting options Puller (engine side) applications only Air pressure relief vents Kit includes adjustable mounting