Cummins QSB4.5 QSB6.7 Fuel Injector Assembly 5263262PX 5289266 5367161 Diesel Engine Parts

Product Details

Product Overview

This high-quality fuel injector assembly is engineered specifically for Cummins QSB4.5 and QSB6.7 diesel engines. Designed as a direct replacement for OEM part numbers 5263262PX, 5289266, and 5367161, this injector ensures optimal fuel delivery and combustion efficiency. We are a leading global supplier of heavy-duty diesel engine components, serving markets in North America, South America, Europe, Southeast Asia, the Middle East, and Africa with reliable shipping and fast delivery to major industrial ports.

Key Features & Benefits

• Precision Engineering: Manufactured to meet or exceed OEM specifications for exact fitment and reliable performance.
• Enhanced Fuel Efficiency: Optimized spray pattern ensures complete combustion, reducing fuel consumption and emissions.
• Durable Construction: Built with hardened steel and high-temperature resistant materials to withstand extreme engine conditions.
• Direct OEM Replacement: Plug-and-play installation with no modifications required for compatible Cummins engines.
• Rigorous Testing: Each injector undergoes pressure, flow, and spray pattern testing before shipment to ensure zero defects.

Technical Specifications

OEM Cross-Reference

This fuel injector is a direct cross-reference for the following OEM part numbers:

• Cummins: 5263262PX, 5289266, 5367161
• Alternative Part Numbers: 5263262, 5289266PX, 5367161PX

Always verify your engine’s serial number and current part number to ensure correct fitment.

Compatibility

• Engine Models: Cummins QSB4.5, QSB6.7 (Tier 3 and Tier 4 Final compliant variants)
• Common Applications: Agricultural tractors, construction equipment (excavators, loaders), industrial generators, and marine engines.
• Vehicle Examples: Case IH, New Holland, John Deere, JCB, Caterpillar (when equipped with Cummins QSB engines).

Global Supply & Distribution

• Worldwide Shipping: We ship to over 50 countries via DHL, FedEx, UPS, and sea freight.
• Major Markets: USA, Canada, Germany, UK, Australia, UAE, Saudi Arabia, Singapore, Brazil, and South Africa.
• Fast Delivery: Stock held in regional warehouses for expedited delivery to ports like Houston, Rotterdam, Shanghai, and Dubai.
• Trade Compliance: All products comply with international export regulations and are packed with proper documentation for customs clearance.

Quality Assurance

• Manufacturing Standards: Produced in ISO 9001 certified facilities with strict quality control processes.
• Certifications: Meets SAE J1830 and ISO 8984 standards for diesel fuel injection equipment.
• Testing: 100% flow bench tested for spray pattern, opening pressure, and leakage before packaging.
• Warranty: 12-month warranty against manufacturing defects, with technical support available for installation questions.

FAQ

1. Is this injector a direct replacement for my Cummins QSB6.7 engine?
Yes, this injector (5263262PX/5289266/5367161) is designed as a direct OEM replacement for Cummins QSB6.7 engines. However, always check your engine’s CPL (Control Parts List) number and the existing injector code to confirm compatibility, as some variants may require specific calibration.

2. Do I need to replace the fuel injector seals or washers with this part?
Yes, it is highly recommended to replace the copper washers, O-rings, and fuel return line seals when installing a new injector. This prevents fuel leaks and ensures proper compression. These seals are typically sold separately unless specified otherwise.

3. What is the recommended maintenance interval for these injectors?
For QSB4.5 and QSB6.7 engines in heavy-duty applications, fuel injectors should be inspected every 2,000 to 3,000 operating hours. Replacement is typically recommended at 6,000 to 8,000 hours or when symptoms like rough idling, black smoke, or reduced power occur. Always use high-quality diesel fuel and replace fuel filters regularly to extend injector life.