Product Introduction: DENSO Automotive Fuel Injector (Part Number: 295050-0490)
Executive Summary
The DENSO 295050-0490 fuel injector is a precision-engineered component within DENSO's advanced common-rail diesel injection system portfolio. Designed to meet stringent global emissions standards and enhance engine performance, this injector exemplifies DENSO's commitment to innovation in fuel efficiency, durability, and emission reduction. While specific public technical data for the 295050-0490 model is limited, this document provides a comprehensive overview based on DENSO's established engineering principles and industry standards for high-pressure common-rail systems. It covers structural features, technical advantages, application scenarios, OEM cross-referencing guidance, and preventive maintenance recommendations to serve as a reliable resource for engineers, technicians, and industry professionals.
Structural Features and Technical Advantages
The DENSO 295050-0490 fuel injector incorporates cutting-edge structural features that ensure high performance under demanding conditions. Drawing from DENSO's expertise in precision engineering, it employs a precision multi-hole nozzle optimized for superior fuel atomization, enabling optimal air-fuel mixing and combustion efficiency. The injector's high-response solenoid valve achieves rapid actuation, allowing multiple injection events per cycle (e.g., pilot, main, and post injections) to reduce combustion noise and emissions. Its robust internal construction includes hardened components like the armature, ball valve, and control piston, which withstand extreme pressures common in modern diesel systems. A hydraulic servo system leverages fuel pressure to ensure swift needle movement and tight sealing, while an optimized magnetic circuit minimizes energy loss and heat generation. Critical internal adjustments are finely calibrated to directly influence fuel delivery, particularly for pre-injection and full-load points. The technical advantages of the 295050-0490 are rooted in its structural design. It delivers enhanced fuel economy and power output through high-pressure injection and milligram-level fuel metering accuracy, which promotes complete combustion. This also enables significant emission reduction, helping engines comply with modern environmental standards by optimizing fuel burn and minimizing particulate matter (PM) and nitrogen oxides (NOx). The injector's durability and reliability are enhanced through hardened materials, minimized internal leakage, and resistance to wear/corrosion, even in high-stress environments. Additionally, its adaptability allows seamless integration with advanced emission control systems like exhaust gas recirculation (EGR) and diesel particulate filters (DPF), making it suitable for diverse engine configurations.
Application Scenarios and Primary Application Fields
The DENSO 295050-0490 injector is designed for diesel engines in heavy-duty commercial vehicles and industrial machinery. Its primary application is in heavy-duty trucks, where it ensures reliable performance under high-mileage operations and extreme load conditions. The injector is also suited for industrial and construction equipment, including excavators and generators, where its resistance to vibration, contamination, and high-pressure fluctuations is critical. To confirm specific compatibility with engine models, consulting official DENSO application guides or vehicle service manuals is strongly recommended.
OEM Cross-Reference Part Numbers
Cross-referencing part numbers is essential for identifying correct replacements. The primary identifier is the DENSO Original Part Number: 295050-0490. DENSO injectors typically cross-reference to multiple OEM part numbers. For example, an analogous DENSO injector model, 295050-0920, corresponds to the Toyota OEM part number 23670-E0450 . This illustrates the typical practice where a single DENSO part number cross-references to OEM part numbers. For professional diagnostics, testing equipment may use templates labeled with DENSO injector numbering patterns. However, verifying cross-references via official DENSO catalogs, OEM databases, or trusted automotive platforms is crucial to avoid performance issues or engine damage.
Recommendations for Daily Preventive Maintenance
Proper maintenance is critical for ensuring the longevity and optimal performance of the DENSO 295050-0490 injector. Key recommendations include using high-quality diesel fuel meeting regional standards to prevent nozzle deposits and internal wear. Regular fuel filter replacement every 15,000–30,000 km (or as specified) is essential to avoid contaminant ingress, as abrasive particles can damage precision components under high pressure. Periodic fuel system cleaning with certified detergents helps dissolve deposits, while professional ultrasonic cleaning is recommended for severe fouling. Electrical checks, such as verifying the injector's coil resistance, can identify faults early. During servicing, maintain extreme cleanliness to prevent contamination when opening the fuel system, and inspect for leaks, cracked seals, or worn wiring. Address symptoms like rough idling, power loss, or excessive smoke promptly to avoid further damage. For comprehensive care, schedule professional inspections periodically, including injector calibration and pressure testing using DENSO-approved tools. To prevent needle valve sticking, disassemble and clean injectors periodically with non-abrasive tools to remove carbon deposits from nozzle holes. Furthermore, as part of a systematic maintenance approach, it is beneficial to keep detailed records of all maintenance activities, as this data can be invaluable for troubleshooting and predicting future service needs.
Fuel Injector Supplier
Rsolid is a professional diesel fuel injector manufacturer provides high quality and durable diesel fuel injector replacements for different brands of engines or produce fuel injector according to your request. The company is positioned as a specialized and excellent supplier in the foreign trade of automotive components, including high-quality fuel injectors. With years of experience in the international market, Rsolid has established itself as a reliable partner for global clients seeking authentic Denso products and comprehensive, value-added services. The company operates with a strong commitment to quality assurance, often backed by international certifications common in the automotive parts industry,ensuring that all parts, undergo rigorous testing for flow rate, pressure endurance, and leak integrity before being offered for sale. Rsolid's business model would typically include maintaining a diverse and comprehensive inventory of both OEM and premium aftermarket parts, with cross-compatible options to cater to a wide range of applications and global clientele, from individual workshops to large fleet operators. If you are looking for diesel fuel injector or OEM engine fuel injector, feel free to contact us.
Conclusion
The DENSO 295050-0490 fuel injector embodies precision engineering, delivering exceptional fuel efficiency, emission reduction, and durability for heavy-duty diesel applications. While specific data for this model is limited, its design aligns with DENSO's legacy of innovation in common-rail technology, contributing to cleaner and more efficient combustion in commercial and industrial sectors. Adherence to a rigorous preventive maintenance regimen—emphasizing fuel quality, filter changes, and professional servicing—is paramount for long-term reliability.
