To ensure reliability, purchase GM part # 12378521 Sealant,Room Temperature Vulcanizing Silicone Cartridge Tb 1217 Acdelco 5.3Oz. 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 Cadillac ATS, Brougham, CTS models. It fits Chevrolet Camaro, Silverado, Tahoe. It also fits GMC Sierra, Suburban, Yukon. This also fits Saturn Outlook, Sky, Vue.
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