Edelbrock 3591 EFI 02 SENSOR and BUNG

Description

Replacement Oxygen Sensor Part #3591 For ProFlo1 EFI, Bosch 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-Wire, Heated Sensor. It includes Replacement O2 Sensor and Weld-In Bung.

Direct Replacements

Use To Guide Carburetor Adjustment And Jetting