BOSCH Replacement Wideband O2 Sensor for Holley Terminator X or X-Max
Replaces Holley part number 554-155.
This is a replacement Bosch LSU 4.9 wideband oxygen sensor for the Holley Terminator X and Terminator X-Max EFI systems. It is exactly the same sensor that comes with those systems originally and that is sold under Holley part number 554-155. Also fits Sniper EFI.
NOTE: Does NOT fit Dominator, Avenger, Terminator (non-x) or HP EFI systems. Those systems use an LSU 4.2 sensor.
