King D16A1/H22A4/F23A Performance Main Bearings (0.25 mm)

King Performance Main Bearings deliver precision engineering for D16A1, H22A4, and F23A engines. These 0.25mm undersized bearings feature advanced metallurgy and tight tolerances to ensure optimal oil film strength and reduced wear. Engineered for high-RPM applications, they provide superior load capacity and thermal stability. Ideal for street performance, turbo builds, and racing applications where reliability matters. Trust King's proven track record in bearing technology for your engine rebuild or upgrade.