To ensure reliability, purchase GM part # 12129023 Retainer,Ecm Wiring Harness Connect(Medium Blue) *Blue)(Use W. Directly from GM, genuine parts are superb with regards to quality, longevity, and fit. Every single part passed stringent quality testing, so you can be sure that it's safe, durable, and built to perform like your original parts. This part fits specific Buick Roadmaster, Skylark models. It fits Cadillac Escalade, Fleetwood. It also fits Chevrolet Camaro, Silverado, Tahoe. This also fits GMC C2500, Sierra, Yukon.
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