Exhaust emission control system (air injection) - 5.3 V12 models
air injection - without pulley
Metric tread
Required: 1
air pump - Identify by: imperial thread
XJS to engine no. 8S60753
Required: 1
air pump - Identify by: metric thread
XJS from engine no. 8S60754
Required: 1
air injection
XJS to VIN 139051
Required: 1
diverter valve to air pump
XJS to VIN 139051
Required: 1
Required: 4
Required: 1
If Borg Warner model 12 automatic gearbox is fitted
Required: 1
If General Motors GM400 automatic gearbox is fitted
Required: 1
