Oxygen Sensor #3591 With 3-Wire & 18mm Bung

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Replacement Oxygen Sensor Part #3591 For ProFlo1 EFI, Bosch 3-Wire And 18mm Bung. Narrow-Band.
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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.


Manufacturer Edelbrock
Application Universal
UPC 00085347035915
Quantity Sold Individually
Thread Diameter 18.0 mm
Connector Gender Female
Connector Shape Oval
Wire Quantity 3
Wire Gauge Measurement 20 ga.
Wiring Harness Length 9
Thread Size Metric
Overall Length 14.5 in
Sensor Type Heated
Availability Note Available to Order
Warranty 12 Months
Hazardous Materials Warning WARNING: This product can expose you to Lead, which is known to the State of California to cause cancer or birth defects or other reproductive harm. For more information, visit
Mounting Type Threaded
Universal Or Specific Fit Specific