Dorman 645-162 Oxygen Sensor Connector
Best price now
$19.62at WalmartObserved at 3:51 PM
19% under what the other stores charge
Compared across 4 stores. Prices are checked against each store and labelled with when.
19% under what the other stores charge
Compared across 4 stores. Prices are checked against each store and labelled with when.
The Dorman 645-162 is a replacement pigtail connector for a four-wire oxygen sensor, sized for 2002–2004 Cadillac Escalade and related GM trucks and SUVs. It is a repair part, not a sensor: you splice it into the harness when the factory plug is cracked, corroded or has broken locking tabs. At $19.62 at Walmart as of November 3, 2026, it sits at the low end for a name-brand pigtail; generic connectors run a few dollars less and OEM repair pigtails cost considerably more.
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Lowest price we've seen: $19.62 on Nov 3 at Walmart. Tracked across 13 stores since Nov 3.
Owners of older GM trucks generally treat Dorman pigtails as a practical fix when the factory connector breaks during sensor service. Complaints center on terminal fit and the work needed to splice it in cleanly.
Make better electrical repairs and accessory installations with this versatile and durable pigtail connector. It allows quick circuit disconnections for service, and is engineered for reliable performance. With over 80,000 products backed by a team of product engineers and experts based in the United States, Dorman is the first choice of automotive professionals, backyard mechanics, and do-it-yourselfers all over North America.