Radiator cap - 28 lb psi super high pressure race cap<br>Z19202 radiator cap - 28 lb psi super high pressure race cap<br>Zoom share<br><br>28 lb (psi) high pressure race cap <br><br>Regular style cap for 3/4" deep fill necks<br><br>Engineered by northern strictly for high pressure cooling systems.<br><br>We calibrate our cap springs to open at the exact pressure stated, preventing your expensive race engine from overheating<br><br>*measurements are for reference only and may vary slightly with application<br><br>*matching existing psi is critical in selecting your radiator cap<br><br>For 20 lb (psi) cap see 227909<br><br>For 24 lb (psi) cap see 227911<br><br>Filler neck width: 2.2"<br>Filler neck depth: .75"<br>Psi (lbs): 28<br>For coolant reservoir systems: yes<br>Overall height: 1.14"<br>Overall diameter: 2.3"<br>Notes: upper seal