Product Overview

This high-quality common rail fuel injector, part number 320-0677 (OEM reference 2645A746), is a direct replacement for Caterpillar C6.6 and C4.4 diesel engines. Precision-engineered for optimal fuel atomization and combustion efficiency, this injector is a critical component for maintaining the power and reliability of your heavy equipment. We serve a global network of B2B clients, including dealerships, fleet operators, and maintenance workshops across North America, Europe, the Middle East, and Asia-Pacific, ensuring fast and reliable shipping to industrial hubs worldwide.

Key Features & Benefits

• 100% Professional Testing: Every injector undergoes rigorous bench testing for flow rate, pressure, and spray pattern to ensure OEM-spec performance.
• Direct Fitment: Engineered to exact OEM dimensions for a seamless, plug-and-play installation with no modifications required.
• Durable Construction: Manufactured from high-grade steel alloys to withstand extreme combustion pressures and temperatures, ensuring a long service life.
• Fuel Efficiency: Optimized nozzle design ensures complete fuel atomization, reducing fuel consumption and exhaust emissions.
• Reliable Start-Up: Maintains precise injection timing for smooth engine starts even in cold weather conditions.

Technical Specifications

OEM Cross-Reference

This injector is a direct replacement for the following original equipment manufacturer part numbers:

• 320-0677 (Caterpillar)
• 3200677 (Caterpillar)
• 2645A746 (Perkins / Caterpillar)

Note: Always verify your engine’s serial number and existing injector part number to confirm compatibility.

Compatibility

This injector is specifically designed for use in Caterpillar and Perkins industrial engines. Compatible models include:

• Engine Models: Caterpillar C6.6, Caterpillar C4.4, Perkins 1106
• Machine Applications:
  • Excavators: 320D, 320D L, 320D GC, 323D L
  • Skid Steer Loaders: 914G, 914G2
  • Paving Equipment: CS-44, CP-44
  • Other: 420E Backhoe Loader

Global Supply & Distribution

As a dedicated supplier to the global heavy equipment aftermarket, we ensure your orders reach you quickly and efficiently.

• Shipping Capabilities: Express (DHL, FedEx, TNT), Air Freight, and Sea Freight available.
• Major Markets Served:
  • North America: USA, Canada, Mexico – Fast delivery to ports like Los Angeles, Houston, and Vancouver.
  • Europe: Germany, UK, Netherlands, France – Stock available for rapid dispatch to Rotterdam and Hamburg.
  • Asia-Pacific: Australia, Singapore, Japan – Direct shipping to Sydney, Singapore, and Tokyo.
  • Middle East & Africa: UAE, Saudi Arabia, South Africa – Regular shipments to Jebel Ali and Durban.
• Delivery Time: Standard orders dispatched within 3-7 business days.
• Payment Options: T/T (Bank Transfer), Western Union, PayPal, and secure credit card processing.

Quality Assurance

We prioritize reliability and performance. Our manufacturing and quality control processes are designed to meet the demands of professional B2B operations.

• Testing: Each injector is 100% tested for opening pressure, spray pattern, and leak tightness before shipment.
• Standards: Production follows strict ISO quality management protocols to ensure consistency.
• Warranty: Backed by a comprehensive 6-month warranty against manufacturing defects.
• Origin: Manufactured in Shandong, China, under strict quality control supervision.

FAQ

1. Is the 320-0677 injector a direct replacement for the original Caterpillar part?

Yes, this injector is manufactured to meet or exceed the original specifications of the Caterpillar 320-0677 and Perkins 2645A746 parts. It is a direct bolt-on replacement and does not require any modifications to the fuel rail or engine harness. We recommend clearing any fault codes after installation.

2. What are the common symptoms of a failing injector on a C6.6 engine?

Common symptoms include rough idling, excessive black or white smoke from the exhaust, a noticeable drop in engine power, increased fuel consumption, and difficulty starting the engine. If you experience any of these issues, we recommend testing the injectors for proper spray pattern and back leakage.

3. Do you provide installation instructions or torque specifications?

While installation should be performed by a qualified diesel technician, the standard procedure involves removing the fuel rail, cleaning the injector bore, installing a new copper washer, and tightening the retaining clamp to the manufacturer’s specified torque (typically around 30 Nm for C6.6 engines). We recommend consulting the Caterpillar service manual for your specific machine model for exact procedures.

Our advantages

1.An authorized wholesaler of Isuzu genuine parts, Hino genuine parts, Mitsubishi genuine parts and Mahle parts.

2. We are not only supply genuine parts, but also high quality OEM parts, which are made in China or made in Japan.

3. More than 10 years of experience in machinery parts, professional supply of diesel engine parts.

4. Fast delivery, the fastest can be shipped in one day ,more than 500,000 of different types parts in stock.

5. Scientific ERP system, easy and fast to locate the parts that customer needs.

6. Professional technician checks the parts before delivery, to make sure the parts are correct, usable and defect-free.

Exhibition

Packing&Shipping

1.  Our shipment is by air/sea/express (DHL/FEDEX/TNT/UPS/EMS).

2.  Once we get confirmation of payment, we will ship products in 2 days.

3.  Our packaging is standard export wooden box or others as your requirement.

4. We’ll check and test the products before shipping , and givethe pictures to our customers to confirm.

FAQ

Q1. What is your company major products?

A: Our main products are Liner kit, Piston, Rings, Liner, Gasket kit, Bearing, Injection pump, Nozzle, Water pump, Oil pump,Crankshaft, Turbocharger,Filter, etc.

Q2.What is the MOQ?

A: Normally we can supply any quantity if we have in stock.

Q3. What is your payment term ?

A: We accept Western Union, T/T, Paypal.

Q4. What is the packing ?

A: Carton or wooden case , If you want to put your logo on the packing , We will do it after get your authorization letter.

Q5. When can you deliver products after payment ?

A: By Express ,usually might take 3-4 days ;By Air , Usually take 7-9 days ; By Sea ,usually take 1-2 months .

Q6. What can you do to complete order perfectly ?

A: In the beginning , We will communicate with clients in details to understand what they need .

Before packing , We will check the products and send photos to clients .After confirmation ,

We will packing products well to avoid damage . Once we get tracking number ,

We will send it to customer and keep contact in with clients .