Turn One Steering - GM Flow Restrictor for Type II Non-OEM PumpHose Connection: GM O Ring Pump Application: Non OEM Type II Pump Material: Black Anodized Aluminum Not all Type II power steering pumps are created equally, and non OEM pumps often use different housing tolerances and dimensions. One difference is the thread pitch of the flow restrictor fitting. This flow restrictor is designed to match the exact threading of these non OEM pumps to ensure the best fit and seal performance. Turn One flow restrictors