Bosch F00RJ02561 Common Rail Injector Control Valve Set

The F00RJ02561 control valve assembly is a critical component within Bosch common rail diesel injectors. It electronically regulates high-pressure fuel delivery timing and quantity by controlling the servo valve orifice. Constructed from high-speed tool steel or 1.4404 (316L-grade) stainless steel with FKM seals, the component withstands rail pressures up to 1800-2000 bar. The valve features nano-polished seating surfaces (Ra 0.1µm) and torque-optimized M14x1.5 threads (DIN 13-1) to ensure sealing integrity and response precision under cyclic thermal loads. Primary application covers Bosch injector series 0445120xxx including 0445120128, 0445120131, 0445120196, 0445120203, 0445120368, 0445120441, 0445120442, 0445120578, and 0445120653. These injectors equip MAN D20/D26 engines, Iveco Tector/Cursor engines (Eurocargo, Stralis), and Yangchai YC4D/Weichai WP4 series engines used in construction machinery and heavy-duty trucks. Cross-references include MAN OE 51.10101.7310 and Liebherr OE 10117168.