Paccar Q21-1064 Sensor Outside Air Temperature PAI 730455OEMCROSS REFERENCE: Q21 1064 Q211064 APPLICATION: Paccar Peterbilt Multiple Use Application. DETAILS: Genuine Part BRAND: PAI 730455OEM Paccar Q21 1064 Sensor Outside Air Temperature PAI 730455OEM. Truck repair parts and heavy truck parts. Supports stable temperature input and maintains system response. 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