Derale 31518 Engine Fan Spacer 1.75″ Thick (Female 5/8″ Pilot) Aluminium Kit.

This 1.75″ belt driven fan spacer comes with a clear anodized finish and is designed to fit most domestic 5/8″ or 3/4″ pilot water pumps. Bolt sizes included: 4 of 5/16″-18 & 4 of 5/16″-24. Flange bolt spacing: 1-3/4″ – 2-1/4″. Warning: Fan should have a minimum clearance of 3/4″ from the radiator, belts, hoses or pulleys.