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 : 95325 S11830 X11830 CH12782 EF11520 L11520 PL11520 WL10473, Kit Includes: 2x Engine Oil Filter, Kit Variations: K56-100444 K56-100457 K56-100470 K56-100496 K56-100509 K56-100522 K56-100535 K56-100548 K56-100561 K56-100574, Part Reference Numbers : 95325 S11830 X11830 CH12782 EF11520 L11520 PL11520 WL10473