Cummins 6B 3914454 Damper PAI 202021CROSS REFERENCE: 3911422 3914454 3916436 3958258 APPLICATION: Cummins 6B 5. 9 Multiple Use Application. DETAILS: Vibration Damper With Serpentine 8 Grooves Pulley 8. 25in Od Damper W O Timing Notches On The Outer Damper For The Timing Sensor To Read. BRAND: PAI 202021 Cummins 6B 3914454 Damper PAI 202021. Aftermarket truck parts and truck repair parts. Maintains crankshaft balance and supports smooth operation. All components are proudly manufactured