Description
Replacement Oxygen Sensor Part #3591 For ProFlo1 EFIBosch 3-Wire And 18mm Bung. Narrow-Band.The Edelbrock #3591 is a Replacement Narrow-Band Oxygen Sensor For ProFlo1 (#3500 Series) EFI Systems. It is a Bosch 3-WireHeated Sensor. It includes Replacement O2 Sensor and Weld-In Bung.





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