• Adjust your oil pressure easily with the Pro-Just pressure relief cap
• Made from billet 6061 aluminum and are counter bored to accept two o-rings
• Kit comes with blue super pump spring
• Adjustment of the oil pressure is done with the engine running
• Turning thumb screw clockwise increases oil pressure, while turning counter-clockwise decreases oil pressure
• Includes detailed instructions

E.R.T. Products
Oil Pump Spring & Relief Cap Kit
Fits Big Twin Single Cam 1973/1999