New OEM Genuine Nissan cylinder head bolt washer for 1968-83 Datsun 240Z, 260Z, 280Z, 280ZX and 510. Will fit all "L" series 4-cylinder and 6-cylinder engines.
These head bolt washers are extra thick and hardened so they will not deform when torqued. One washer. Ten washers required for 4-cyl and 14 required for 6-cyl.