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2015 - 2020 Ford F-150 4 Wheel Drive (Including Raptor SVT). New Updated OEM Ford Automatic Hub Lock Vacuum Line with Check Valve for 4WD Vehicles. Older check valves are notorious for leaking vacuum causing powertrain noises when driving.
When you click on links to various merchants on this site and make a purchase, this can result in this site earning a commission. Affiliate programs and affiliations include, but are not limited to, the eBay Partner Network.