Mack 4QB514A Throttle Control Electronic PAI 2672CROSS REFERENCE: 25174978 4QB52M 4QB59 4QB55 4QB514 4QB514A APPLICATION: Mack Multiple Use Application BRAND: PAI 2672 Mack 4QB514A Throttle Control Electronic PAI 2672 intended for USA truck parts and heavy truck parts. Provides stable electronic signal supporting safe truck operation. All components are proudly manufactured in the U. S. A. by PAI Industries Inc., an ISO9001 certified company with over 50 years of experience in the heavy duty truck