1966 GMC 3000 Series Radiator Caps
- Proform®Officially Licensed GM Black Engine Coolant Radiator CapGMC 3000 Series 4.6L 1966, Officially Licensed GM Black Engine Coolant Radiator Cap by Proform®. Pressure: 13 psi. Material: Billet Aluminum. Finish: Black Anodized. To keep your engine cool and improve your vehicle's performance, this...$35.95