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Title: Excellent Replacement Part!!
Review: After several "run-arounds" with aftermarket O2 sensors (even Bosch!) and about a month of an intermittent Check Engine light, I finally purchased this AC Delco sensor and cured my problem! I simply used the part # stamped on the old sensor, matched it up here and got an Original GM Replacement part. It's been well over 6 months, and NO Check Engine light! Plus, it was cheaper than the aftermarket sensors! Always use OEM sensors!
