Mack 20QE262P1 Check Valve PAI 802641CROSS REFERENCE: 20QE262 20QE262P1 745 228520 745 228520N APPLICATION: Mack Multiple Use Application. DETAILS: Check Valve Includes Valve Body (1) Stop Light Switch (1) Adapter (1)1 4 3 8 NPT BRAND: PAI 802641 Mack 20QE262P1 Check Valve PAI 802641. Replacement truck parts and aftermarket truck parts. Supports one way air flow and ensures consistent pneumatic function. All components are proudly manufactured in the U. S. A. by PAI Industries Inc., an