Derale Fan Spacer 1-1/2" 1970097 3-1/2 x 10 in Round

3-1/2 x 10 in Round Body

Airflow Vents located in the Chin and Scalp with Rear Exhausts

The flange is sealed at the manifold with an O-ring

including Formula 1

The Pumper system and helmet are not included

Derale Fan Spacer 1-1/2" 1970097 3-1/2 x 10 in RoundDerale Fan Spacer 1 1 2" 31515 Aluminum Fan Spacer Clear Anodized 1 1 2" Thick 5 8" Pilots Male Female 5 16" 18 5 16" 24 Bolts Aluminum construction, Anodized clear finish, 1 1 2" length with 5 8" female pilot, Fine and course 5 16" thread hardware included, Warning: Fan should have a minimum clearance of 3 4" from the radiator, belts, hoses or pulleysDerale has been the leader in performance cooling for decades. Derale prides themselves in