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dy731.jpg | Hits: 629 | Posted on: 12/3/15 | View original size (2.55 MB)

This is only being replaced because the original was seized in the Y-pipe, so its threads stripped coming out. Otherwise, I'd have reused it.

MotorCraft DY-731 HEGO
F4UF-9F472AA
Bosch 0258003533
2121133
date code 2M11 = December 2, 2011