Case Saver. The Turner Performance Products Case Saver is machined from aircraft-grade 6061 billet aluminum for added strength and protection for your engine. Anodized finish for style and a factory finish. Hardware included where applicable. Note: Image for reference only, style will vary by fitment. Note: Replaces Kawasaki O.E.M. P/N 12053-0129, 12053-0011.