Product Overview

This high-precision Common Rail Injector Orifice Plate (Part Number: 4#) is a critical component designed for professional repair and replacement of diesel fuel injection systems. Manufactured in Shandong, China, this orifice plate is compatible with a wide range of Bosch control valve models including 5053, 5220, 5550, 6590, 6311, 6950, 5030, 5950, 7850, 7893, 6490, and 6491. We offer global shipping to major industrial markets in North America, Europe, Southeast Asia, the Middle East, and South America, ensuring fast and reliable delivery for B2B buyers worldwide.

Key Features & Benefits

• Precision Engineering: Manufactured from high-grade steel to exacting tolerances, ensuring optimal fuel metering and injection pressure stability.
• Enhanced Durability: Designed to withstand extreme pressures and temperatures within the common rail system, providing a long service life.
• Direct Replacement: A drop-in replacement part that matches OEM specifications, minimizing downtime during repair.
• Cost-Effective Solution: Offers a reliable alternative to replacing the entire control valve assembly, reducing overall maintenance costs.
• Rigorous Quality Control: Each orifice plate is inspected to ensure consistent flow characteristics and dimensional accuracy.

Technical Specifications

OEM Cross-Reference

This Common Rail Injector Orifice Plate 4# is designed as a direct replacement for the following Bosch control valve models and their associated OEM part numbers:

• Bosch Models: 5053, 5220, 5550, 6590, 6311, 6950, 5030, 5950, 7850, 7893, 6490, 6491
• Alternative Reference: Often used as a service component for injector repair kits. Please verify fitment by matching the physical dimensions and application with your specific control valve model.

Compatibility

This orifice plate is a universal component used in the repair of common rail diesel injectors. It is compatible with a wide range of diesel engines found in trucks, cars, and industrial equipment that utilize Bosch-style control valves.

• Vehicle Applications: Diesel Truck Engines, Passenger Car Diesel Engines, Agricultural & Construction Machinery Engines
• Engine Types: Common Rail Direct Injection (CRDI) Diesel Engines
• Note: Always confirm the specific control valve model (e.g., 5053, 5220) in your injector before purchasing.

Global Supply & Distribution

We are a dedicated supplier of diesel engine components with a robust international logistics network. Our distribution capabilities include:

• Worldwide Shipping: Reliable delivery to over 50 countries via air, sea, and express courier services (DHL, FedEx, UPS, TNT).
• Major Markets Served: North America (USA, Canada, Mexico), Europe (Germany, UK, Netherlands, Poland), Asia-Pacific (Australia, Japan, Singapore, UAE), Middle East (Saudi Arabia, UAE), and South America (Brazil, Argentina).
• Fast Delivery: Efficient processing and shipping from our stock in Shandong, China, to major ports and industrial centers globally.
• Trade Compliance: We provide all necessary export documentation for smooth customs clearance.

Quality Assurance

• Manufacturing Standards: Produced in a facility with strict quality control measures, ensuring each part meets high-performance standards for diesel injection systems.
• Testing: Each batch undergoes dimensional inspection and flow testing to ensure consistent performance.
• Warranty: Backed by a 4-month warranty against manufacturing defects, providing peace of mind for your repair operations.

FAQ

1. How do I know if this Orifice Plate 4# fits my injector?
This part is designed for Bosch control valves with model numbers including 5053, 5220, 5550, 6590, and others listed above. You must verify the model number printed on the control valve body of your injector. This is a precision part; using the incorrect version can affect engine performance.

2. What is the function of this orifice plate in the injector?
The orifice plate controls the flow of fuel into and out of the control chamber within the injector. It precisely meters the fuel volume, which is critical for regulating injection timing, pressure, and fuel quantity. A worn or damaged plate can cause poor starting, rough idling, and reduced power.

3. Can I replace just the orifice plate, or do I need a full repair kit?
You can replace just the orifice plate if it is the only damaged component. However, we recommend inspecting the entire control valve assembly, including the valve plunger and spring. For a comprehensive repair, using this plate alongside a full seal kit is often the best practice to ensure long-term reliability.

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 .