Product Overview

This premium fuel injector is a direct replacement for Caterpillar C6.4 and C6.6 engines, specifically designed for the popular Cat 320D excavator and other heavy equipment applications. Manufactured to meet or exceed OEM specifications, this injector ensures optimal fuel atomization, improved combustion efficiency, and reduced emissions. As a trusted supplier based in Shandong, China, we serve a global B2B clientele, shipping to major markets across North America, Europe, Asia-Pacific, the Middle East, and South America. Our injectors are rigorously tested to guarantee 100% professional performance, making them a reliable choice for fleet maintenance and repair shops worldwide.

Key Features & Benefits

• Precision Engineering: Manufactured from high-grade steel with exacting tolerances for a perfect fit and long service life.
• Enhanced Performance: Restores engine power, improves fuel economy, and reduces smoke emissions compared to worn or failed injectors.
• 100% Tested: Every unit undergoes professional flow, spray pattern, and pressure testing to ensure reliable operation out of the box.
• Cost-Effective Solution: A high-quality aftermarket replacement at a competitive price point, ideal for maintenance budgets.
• Universal Fitment: Designed as a direct drop-in replacement for the specified OEM part numbers.

Technical Specifications

OEM Cross-Reference

This fuel injector is an exact cross-reference for the following OEM and aftermarket part numbers. It is designed to match the form, fit, and function of the original Caterpillar components.

• Primary OEM Numbers: 2645A747, 320-0680
• Compatible Cross References: 2645A743, 320-0670, 2645A749, 320-0690, 326-4756
• Additional Reference: 32F61-00062

Compatibility

This injector is specifically engineered for the following engine and vehicle applications:

• Engine Models: Caterpillar C6.4, Caterpillar C6.6
• Vehicle/Equipment Models: Caterpillar 320D Excavator, 320D L Excavator, and other equipment utilizing these engine platforms.
• Note: Please verify your engine serial number and existing part number to ensure compatibility.

Global Supply & Distribution

We are a dedicated global supplier of heavy-duty engine components. Our logistics network enables us to offer fast and reliable shipping to customers worldwide.

• Worldwide Shipping: We ship to all continents, including North America, Europe, Asia, Africa, and Oceania.
• Major Ports & Hubs: Expedited delivery to major ports (e.g., Houston, Rotterdam, Shanghai, Dubai, Singapore) and industrial centers.
• Flexible Ordering: Low minimum order quantity (MOQ: 1 Pcs) for sample testing, with bulk discounts available for fleet and wholesale orders.
• Payment Options: We accept T/T, Western Union, and PayPal for your convenience.

Quality Assurance

Quality is the cornerstone of our production process. We ensure every injector meets strict standards before it reaches your workshop.

• Manufacturing Standard: Produced in ISO-certified facilities using advanced machining and assembly processes.
• Testing: Each injector undergoes a 100% professional test, including flow rate, spray pattern, and pressure calibration.
• Warranty: All units come with a standard 6-month warranty against manufacturing defects.

FAQ

Q1: Is this injector a direct fit for my Cat 320D with a C6.6 engine?
A: Yes, this injector (2645A747/320-0680) is a direct replacement for the Caterpillar C6.6 engine found in the 320D excavator series. We recommend removing your old injector and confirming the part number stamped on it for a 100% match.

Q2: Do I need to replace the injector seals or copper washers when installing this?
A: Absolutely. It is a critical best practice to always replace the copper washer, O-rings, and hold-down bolt (if applicable) when installing a new injector. Failure to do so can lead to combustion gas leakage and poor performance.

Q3: What is the recommended maintenance interval for these injectors?
A: While injector life varies based on fuel quality and operating conditions, they are designed for long service life. For optimal engine health in heavy-duty applications like excavators, we recommend inspecting injectors every 2,000 to 3,000 operating hours or as part of a major engine overhaul.

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 .