Caterpillar C4.4 C6.6 1106D-E66TA Fuel Injector Assembly 2645A746 320-0677 for Diesel Engine Parts

Product Details

Product Overview

This high-quality Fuel Injector Assembly is a direct replacement for Caterpillar C4.4 and C6.6 diesel engines, including the 1106D-E66TA model. Manufactured to meet or exceed OEM specifications, this injector (Part Numbers: 2645A746, 320-0677) ensures optimal fuel atomization and combustion efficiency. We supply this critical engine component to the global B2B market, with regular shipments to major industrial centers in North America, Europe, Asia-Pacific, and the Middle East.

Key Features & Benefits

• Precision Engineering: Delivers accurate fuel injection timing and volume for maximum engine performance and fuel economy.
• Superior Durability: Constructed with hardened steel components and advanced wear-resistant coatings to withstand high-pressure injection cycles.
• Direct Fitment: A true bolt-on replacement requiring no modifications, ensuring minimal downtime during installation.
• Strict Quality Control: Every unit is 100% flow-tested and pressure-tested to guarantee consistent, reliable operation.
• Cost-Effective Solution: Offers significant savings compared to OEM dealer pricing without compromising on quality or longevity.

Technical Specifications

OEM Cross-Reference

This fuel injector directly replaces the following original equipment manufacturer (OEM) and aftermarket part numbers:

• Caterpillar: 2645A746, 320-0677
• Cross-Reference: 10R-7224, 10R-7225, C6.6-2645A746

Note: Always verify your engine serial number and injector code before purchase to ensure compatibility.

Compatibility

This injector is specifically designed for use in the following Caterpillar engine platforms and equipment:

• Engine Models: Caterpillar C4.4, C6.6, 1106D-E66TA
• Typical Applications: Excavators (313D, 314D, 315D, 319D, 320D), Bulldozers, Loaders, and Industrial generators.
• Year Range: Primarily 2008-2015 (confirm with engine serial number).

Global Supply & Distribution

We are a dedicated exporter of heavy-duty diesel engine parts. Our logistics network ensures fast and reliable delivery worldwide:

• Shipping Capabilities: Air freight (DHL, FedEx, UPS) and Sea freight (FCL/LCL) available.
• Major Markets Served: United States, Canada, Germany, United Kingdom, Australia, UAE, Saudi Arabia, Singapore, and South Africa.
• Delivery Speed: Stock items ship within 24-48 hours. Express delivery to major ports (e.g., Rotterdam, Dubai, Singapore) in 5-7 days.
• Trade Compliance: We adhere to international export regulations and provide full documentation for customs clearance.

Quality Assurance

• Manufacturing Standard: ISO 9001:2015 certified production facility.
• Testing: Each injector undergoes 100% flow bench testing for spray pattern, opening pressure, and leak-down performance.
• Warranty: 12-month warranty against manufacturing defects in materials and workmanship.

FAQ

Q1: Will this injector fit my Caterpillar C6.6 engine in a 320D excavator?
A: Yes, this injector (2645A746) is a standard fitment for the C6.6 engine used in many 320D series excavators. However, we strongly recommend checking your engine serial number (S/N) and the injector code printed on the old injector to confirm absolute compatibility, as there are variations between early and late models.

Q2: What is the recommended installation procedure for this injector?
A: Installation requires careful attention. Ensure the injector bore is clean and free of carbon deposits. Always replace the copper washer and O-rings. Tighten the injector clamp to the manufacturer’s specified torque (typically around 20-25 Nm). It is critical to perform an injector calibration (coding) using a diagnostic tool after installation to ensure the ECU recognizes the new injector’s trim code for optimal performance.

Q3: How can I tell if my old injector is failing and needs replacement?
A: Common symptoms of a failing injector on the C6.6 include: white or black smoke from the exhaust, rough idling, a noticeable loss of engine power, increased fuel consumption, and engine knocking. If you have a diagnostic tool, you may find fault codes related to cylinder contribution or injector circuit errors. We recommend replacing all injectors in a set for balanced performance, though individual replacement is possible if only one is faulty.