New K&N Gold Series oil filter for 1968-83 Datsun 240Z/260Z/280Z/280ZX and 510 68-73. K&N Gold Series oil filters come with metal wrenching nut, strong sidewall canisters for higher burst strengths, PSI relief valves and nitrile rubber anti-drainback valves (where applicable), and rolled threads to help prevent stripping when installing the oil filter.