Injector 0 445 120 461 used for Weichai engine spare parts

Injector 0445120461 for Weichai Engine - High-Precision Common Rail Fuel Injector

High-Quality Injector 0445120461 (Alternative Part No.: 1000035955) is a precision-engineered fuel injection component, specifically designed and calibrated for Weichai diesel engines, especially compatible with Weichai WP7 engines meeting National IV and V emission standards. As a core part of the common rail fuel system, this fuel injector is classified as CRIN 2-16 type, responsible for atomizing fuel into fine particles and delivering it accurately into the engine cylinders at the optimal timing and quantity. It directly affects the engine’s power output, fuel efficiency, and exhaust emissions, making it an essential replacement part for Weichai engine maintenance, repair, and performance optimization.

Product Overview & Compatibility

Injector 0445120461 is a high-precision common rail fuel injector, engineered to match the exact specifications of Weichai diesel engines, with a primary focus on the WP7 series—widely used in heavy-duty trucks, construction machinery, industrial equipment, and marine applications. It is officially cross-referenced with the alternative part number 1000035955 and is compatible with Bosch common rail systems, ensuring a perfect fit and direct replacement without any modifications to the engine’s existing fuel system. Specifically, it is fully适配 with Weichai WP7 series models including WP7C150-15E120, WP7C240-18E120, WP7C268-18E120, WP7C278-21E120, and WP7C300-22.5E120, all of which adopt the electronic control common rail fuel supply method. This injector is fully compatible with Weichai engines that adopt the common rail fuel supply system, particularly those meeting National IV and V emission regulations, solving common issues such as uneven fuel atomization, poor combustion, unstable idling, and excessive exhaust emissions. Additionally, it is equipped with a matching nozzle DLLA 145P 2566, further ensuring consistent performance and compatibility with Weichai WP7 engines.

Core Features & Technical Advantages

• Precision Atomization Technology: Equipped with a high-precision nozzle and advanced electromagnetic control valve, the injector atomizes fuel into ultra-fine particles (particle size ≤ 20μm), ensuring full mixing with air in the cylinders. This promotes complete combustion, reduces fuel waste, and lowers harmful emissions (NOx, particulate matter), fully complying with national emission standards and environmental requirements.

• Accurate Fuel Delivery: Adopting a high-sensitivity electromagnetic control mechanism, it precisely controls the injection timing and fuel quantity, with a delivery error of less than ±1%. This ensures uniform power output of each cylinder, avoids engine surging and vibration, and improves the overall stability of the Weichai engine during idling and heavy-load operation.

• Durable & Corrosion-Resistant Construction: The injector body is made of high-strength stainless steel, and the nozzle is treated with wear-resistant and corrosion-resistant coating, effectively resisting the erosion of high-pressure fuel and high-temperature exhaust gas. The sealed structure prevents fuel leakage and ensures long-term stable operation, with a service life of over 8,000 operating hours, reducing maintenance frequency and costs.

• OEM-Grade Calibration: Each injector is pre-calibrated at the factory according to Weichai engine parameters, matching the original equipment’s performance standards perfectly. It can be directly installed without additional calibration, saving maintenance time and labor costs, and ensuring seamless integration with the engine’s fuel system.

• Wide Adaptability: Designed to withstand harsh working environments (high temperature, high pressure, dust, vibration), it is suitable for various application scenarios of Weichai engines, including long-haul transportation, construction sites, and industrial power generation, maintaining stable performance under extreme conditions.

Technical Specifications

Why Choose This Injector?

For Weichai engine owners, maintenance workshops, and spare parts distributors, Injector 0445120461 offers unparalleled value with its OEM-grade quality, precise compatibility, and reliable performance. It directly addresses the core pain points of engine maintenance: solving poor combustion, reducing fuel consumption by 5-8% compared to worn injectors, and ensuring the engine meets emission standards, avoiding penalties caused by non-compliance.

Unlike generic injectors, this product is specifically calibrated for Weichai WP7 engines (including WP7C150-15E120, WP7C240-18E120, etc.), eliminating the risk of mismatched parameters, nozzle clogging, or premature failure. It is designed with reference to Bosch technical standards, equipped with the matching DLLA 145P 2566 nozzle, and undergoes strict quality testing (including leakage testing, atomization testing, and performance testing) before leaving the factory, ensuring consistent quality and long-term reliability. Additionally, it comes with a 1-year warranty, providing comprehensive after-sales support.

Application Scenarios

Injector 0445120461 is widely used in various fields where Weichai WP7 engines are deployed, including marine applications (for WP7 series marine diesel engines with 110-220kW power) as well as the following scenarios:

• Heavy-duty trucks and commercial vehicles equipped with Weichai WP7 engines

• Construction machinery (excavators, loaders, bulldozers) powered by Weichai engines

• Industrial generators and power units using Weichai diesel engines

• Agricultural machinery and engineering vehicles that meet National IV/V emission standards

Quality Assurance & After-Sales Service

Each Injector 0445120461 undergoes a three-stage strict quality inspection process: raw material testing, production process monitoring, and final performance verification. We adhere to international manufacturing standards and ensure that every unit meets or exceeds Weichai’s original equipment requirements. We provide 24/7 technical support to assist with installation, calibration, and troubleshooting, as well as a 1-year warranty for quality-related issues.

Restore your Weichai engine’s optimal performance with Injector 0445120461. Contact us today for competitive pricing, bulk ordering discounts, or detailed technical specifications. We offer worldwide shipping with fast delivery, ensuring you receive the spare parts you need in a timely manner.