Product Overview: Scania Fuel Injector 2057401
The Scania fuel injector 2057401 is a critical component in advanced diesel engine systems, engineered to deliver precision fuel metering, optimal combustion efficiency, and exceptional durability under demanding operational conditions. As a remanufactured genuine Scania part, it undergoes rigorous recalibration to meet or exceed original equipment manufacturer (OEM) specifications, ensuring reliability in heavy-duty applications. This comprehensive introduction covers its structural innovations, technical advantages, cross-references, maintenance protocols, and sourcing guidance.
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1. Structural Features and Technical Advantages
The injector’s design incorporates cutting-edge fuel injection technology, focusing on precision, responsiveness, and longevity. Key structural features include:
- Low-Inertia Valve Assembly: The valve core comprises a guided coaxial structure (guide column and sealing column), reducing moving mass and enhancing valve response speed. This minimizes lag during opening/closing cycles and mitigates sticking issues common in conventional injectors .
- Integrated Filtration System: A built-in filter within the limit adjustment tube ensures contaminant-free fuel flow while simplifying assembly. This consolidated design reduces component count, lowers costs, and improves dimensional accuracy during installation .
- Spherical Guide Plate with Radial Spray Holes: Unlike flat plates, the spherical guide plate features radially arranged injection holes, producing finer fuel mist particles (10–15 Sauter Mean Diameter) and uniform atomization. This optimizes spray angle adjustability, stabilizes flow coefficients, and enhances combustion efficiency .
- Axial Flow Channels: The armature’s conical sleeve incorporates axially distributed flow holes, replacing restrictive radial pathways. This reduces fluid resistance, accelerates armature movement, and shortens ineffective injection time, improving dynamic flow stability .
- Soft Magnetic Fuel Inlet Pipe: Constructed from soft magnetic materials, the inlet pipe optimizes magnetic circuit efficiency, enabling faster armature response and higher electromagnetic force for precise actuation .
- Self-Cleaning Spiral Groove: A spiral groove on the valve guide rotates the valve core during operation, creating mutual grinding between the composite conical seal and injection hole. This self-polishing action reduces carbon buildup and wear, extending service life .
Technical Advantages:
- Rapid Response: The low-inertia valve and optimized magnetic circuit reduce activation time, enabling precise injection timing and improved fuel economy.
- Emission Compliance: Superior atomization ensures complete combustion, reducing particulate matter and aligning with Euro VI standards .
- Durability: Robust materials and anti-wear designs withstand high-pressure cycles (e.g., 350 Bar), making the injector suitable for extreme environments .
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2. Application Scenarios and Primary Domains
The Scania 2057401 injector is engineered for heavy-duty diesel engines requiring high-pressure fuel delivery and exceptional reliability. Its applications span:
- Commercial Vehicles: Scania trucks and buses, including RDC13A and DC16A engine models, where fuel efficiency and low emissions are critical .
- Industrial Machinery: Construction equipment (e.g., excavators, loaders), agricultural machinery, and stationary generators operating under variable loads and harsh conditions.
- Marine Propulsion Systems: Auxiliary engines demanding consistent atomization and corrosion resistance.
The injector’s compatibility with high-pressure common rail systems makes it ideal for modern engines adhering to stringent emission regulations .
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3. OEM Cross-Reference Numbers
The Scania 2057401 injector is interchangeable with multiple OEM and remanufactured part numbers, ensuring flexibility in sourcing and replacement. Key cross-references include :
- Scania: 1933612, 2031835, 2036181
- Cummins: 574423, 575176
These numbers are validated by manufacturers and distributors like Turbo Diesel UK, which remanufactures injectors to OEM standards with a 24-month warranty .
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4. Daily Preventive Maintenance Recommendations
Proactive maintenance is essential to prevent injector failure, needle valve sticking, and carbon deposition. Critical practices include:
- Regular Cleaning and Inspection:
- Disassemble the injector periodically and clean components with filtered diesel. Use non-metallic tools (e.g., sharpened wood sticks) to remove carbon from injection holes, avoiding surface damage .
- Inspect the injector tight cap for deformation. Slightly damaged caps can be corrected with a round file, while severely deformed ones require replacement to prevent needle valve distortion .
- Pressure and Sealing Tests:
- Verify injection pressure using calibrated equipment. Check for leaks at connections and inspect the needle valve’s conical surface for wear. Polish minor imperfections with abrasive paste (e.g., aluminum oxide) to restore sealing .
- Post-adjustment, ensure no droplet leakage or linear spraying occurs. A crisp "snapping" sound during injection indicates proper operation .
- Fuel and System Hygiene:
- Use ultra-filtered, precipitated diesel to prevent contaminant ingress. Replace damaged fuel filters and seals promptly .
- Before reinstalling injectors, flush fuel lines by cranking the engine to expel debris .
- Thermal Management:
- Maintain 2–4 mm clearance between the injector and cylinder head, and ensure copper seals are intact to facilitate heat dissipation. Overheating from carbon buildup accelerates injector degradation .
- Installation Precautions:
- Avoid excessive torque when tightening mounting bolts or caps, as uneven pressure can deform the needle valve body, leading to sticking .
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5. 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.
