Upgrade your vehicle's oil system with our genuine GM Oil Filler Tube Seal, meticulously designed, engineered, and tested to meet rigorous GM standards. This durable, blue rubber seal, part number 12701726, ensures a perfect fit for your Chevrolet, Buick, GMC, or Cadillac vehicle, maintaining optimal oil flow and preventing leaks. Backed by a 12-month GM parts warranty, this essential component is a direct replacement for your original equipment, ensuring your engine's performance and longevity.