Joint d'ajustement de calibrage de l'injecteur Bosch B13 pour rail commun, diamètre intérieur 2.3 mm, diamètre extérieur 4.2 mm, 10 épaisseurs, 50 pièces/caisse, F00RJ02757 F00RJ04733

Bosch B13 Common Rail Injector Adjustment Washer, specifications inner diameter Ø2.3mm, outer diameter Ø4.2mm, thickness range 1.38-1.56mm, 50 pieces per box containing 10 different thicknesses. Suitable for Bosch part numbers F00RJ02757 and F00RJ04733. Used to adjust the initial pre-tension of the solenoid spring of the built-in (cylinder head mounted) injector, ensuring precise working pressure of the common rail fuel system, improving diesel engine performance and fuel efficiency. High precision steel washer, tolerance ±0.01mm, is the core consumable for diesel engine injector maintenance and calibration, widely used in the maintenance of Bosch CRI/CRIN series injectors.