Product Overview

This high-performance fuel injector assembly is a direct replacement for Caterpillar C4 and C6 diesel engines, specifically designed for the 320D excavator series. Manufactured to OE specifications, this injector (part numbers 320-0690 and 320-0680) ensures optimal fuel atomization and combustion efficiency. We export globally to North America, Europe, Southeast Asia, and the Middle East, providing reliable parts for heavy equipment maintenance and repair.

Key Features & Benefits

• Precision Engineering: Manufactured from high-grade stainless steel for superior corrosion resistance and long service life.
• Enhanced Performance: Delivers precise fuel metering and injection timing, reducing fuel consumption and emissions.
• 100% Tested: Every unit undergoes professional pressure and spray pattern testing to guarantee OE-equivalent performance.
• Direct Fitment: Universal design ensures a seamless installation without modifications, saving downtime.
• Reliable Supply: Ready stock with fast 3-7 day dispatch, backed by a 6-month warranty for peace of mind.

Technical Specifications

OEM Cross-Reference

This injector assembly is a direct replacement for the following OEM part numbers:

• 320-0690 (Alternative: 3200690)
• 320-0680 (Alternative: 3200680)

These numbers are interchangeable and fit the same application. Always verify your existing part number before ordering.

Compatibility

• Engine Models: Caterpillar C4.2, C4.4, C6.4, C6.6 Diesel Engines
• Vehicle Applications: Caterpillar 320D, 320D L, 320D2 Excavators
• Additional Fitment: Compatible with other heavy machinery using the same injector platform, such as certain wheel loaders and generators.

Global Supply & Distribution

We are a leading supplier of diesel engine parts with extensive export experience. Our logistics network ensures fast and reliable delivery to major industrial centers worldwide:

• North America: Fast shipping to ports like Los Angeles, Houston, and New York.
• Europe: Efficient delivery to Rotterdam, Hamburg, and Antwerp.
• Asia-Pacific: Direct routes to Singapore, Dubai, and Shanghai.
• Middle East & Africa: Reliable service to Jebel Ali, Dammam, and Durban.

We support flexible payment terms (T/T, Western Union, PayPal) and offer neutral or custom packaging to meet your requirements.

Quality Assurance

Our fuel injectors are manufactured under strict quality control standards. Each unit is individually tested for:

• Opening pressure accuracy
• Spray pattern consistency
• Leak-free operation

We provide a 6-month warranty against manufacturing defects. Our parts are designed to meet or exceed OE performance, ensuring reliable operation in demanding environments.

FAQ

Q1: Will this injector fit my Caterpillar 320D excavator with a C6.6 engine?
A: Yes, the 320-0690 and 320-0680 injectors are direct replacements for the C4.2, C4.4, C6.4, and C6.6 engines commonly used in 320D series excavators. Always confirm your engine serial number for full compatibility.

Q2: Do I need to replace the injector seal or copper washer during installation?
A: Yes, we strongly recommend using new injector seals, copper washers, and hold-down bolts when installing this unit. This ensures proper compression and prevents fuel leaks. These are sold separately if not included.

Q3: What is the recommended maintenance interval for these injectors?
A: Under normal operating conditions, these injectors should be inspected every 2,000-3,000 hours. Replace them if you notice excessive smoke, rough idling, or a loss of power. Using clean, high-quality diesel fuel will extend their service life.