Feature●Notched tooth insert 1.5 x 58 mm, 12.5 mm (1/2 inch) drive●Allows you to renew the diesel pre-chamber●Suitable for Mercedes engines from 1989●To be used as OEM 603589000900, 603589010900●Fits 601, 602, 602.91, 603, 604, 605, 606, 661, 662 series enginesDescriptionclass="celwidget" data-feature-name="aplus" data-csa-c-type="widget" data-csa-c-content-id="aplus" data-csa-c-slot-id="aplus_feature_div" data-csa-c-asin="" data-csa-c-is-in-initial-active-row="false" data-csa-c-id="bss8or-eclmum-68pxwh-t9ee08" data-cel-widget="aplus_feature_div">