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This document focuses on the b-osCH 120 Series common rail fuel injector model 0445120109, a high-precision OE-grade replacement component exclusively engineered for MERCEDES-Benz diesel engines. Centering on the product’s core advantages and potential operational problems with targeted solutions, the content is presented in 5 detailed Tables, each accompanied by in-depth descriptive text. All information is closely linked to the 0445120109 model, covering basic specific-ations (including common numbers), core performance advantages, potential faults and corresponding solutions, key component materials & structural features, and professional maintenance guidelines. It is designed to help users fully grasp the product’s characteristics, quickly resolve malfunctions, and ensure the stable and efficient operation of MERCEDES-Benz commercial vehicles, heavy-duty trucks, and industrial machinery. As a high-performance variant in b-osCH’s 120 Series, it integrates advanced common-rail technology, optimized for the operating characteristics of MERCEDES-Benz engines, with a focus on precision control, extreme durability, and full compliance with global emission standards.

Table 1: Basic Product Specific-ations & Common Number

This Table outlines the core specific-ations and identific-ation information of the 0445120109 injector, with 0445120109 as its primary common number—critical for global parts procurement, inventory management, and model matching. The listed OEM cross-reference numbers, including A0060179821 and A0060179921, ensure broad compatibility across MERCEDES-Benz’s mid-to-late heavy-duty vehicle platforms, especially the Actros MP5 and Arocs 2020-2022 models, simplifying parts identific-ation for workshops, distributors, and fleet managers. Key parameters such as 2200–2600 bar injection pressure, 0.75kg net weight, and precision-matched nozzle/valve components (DLLA158P1632, F00VC01081) provide accurate compatibility references, enabling direct OE replacement without any engine modific-ations. Fully aligned with MERCEDES-Benz’s original equipment standards, this injector ensures seamless integration with the vehicle’s electronic control system (ECU) and fuel delivery network, maintaining the engine’s original performance level and reliability.

Table 2: Core Product Advantages

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