Efficient filter media offers increased dirt-collecting capability and ability to capture more engine-harming particles, Advanced engine protection, Premium gasket included, Anti-drain back valve holds a reserve of oil in the filter to help protect the engine during start-ups, Built for both synthetic and conventional oils, Part Reference Numbers : 84512 S5830 X5830 CH10066 LF631 L15830 57512, Kit Includes: 2x Engine Oil Filter, Kit Variations: K56-100047 K56-100086 K56-100156 K56-100179 K56-100219 K56-100259 K56-100299 K56-100339 K56-100379 K56-100419, Part Reference Numbers : 84512 S5830 X5830 CH10066 LF631 L15830 57512