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China factory - Guangzhou Pinxin Engine Co., Ltd.

Guangzhou Pinxin Engine Co., Ltd.

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  3. National Standard IV 571-0939 5710939 Injector CAT C4.4 Engine Fuel Injection
China National Standard IV 571-0939 5710939 Injector CAT C4.4 Engine Fuel Injection
China National Standard IV 571-0939 5710939 Injector CAT C4.4 Engine Fuel Injection

  1. China National Standard IV 571-0939 5710939 Injector CAT C4.4 Engine Fuel Injection
  2. China National Standard IV 571-0939 5710939 Injector CAT C4.4 Engine Fuel Injection
  3. China National Standard IV 571-0939 5710939 Injector CAT C4.4 Engine Fuel Injection

National Standard IV 571-0939 5710939 Injector CAT C4.4 Engine Fuel Injection

  1. MOQ： 1pcs
  2. Price： USA$ 250-680
  3. Get Latest Price
Payment Terms T/T,Western Union
Supply Ability 100pcs,1-15 work days
Delivery Time 1-15 work days
Packaging Details Original/Neutral/Customized
Part No 571-0939 5710939
Brand CAT
Model C4.4
Condition New
Quality High Quality
MOQ A piece
Main product Electrical parts, engine parts, hydraulic parts, wearing parts
Payment terms Wire transfer, paypal, AliPay, Western Union, Bank transfer
Mode of transport DHL Express Express UPS
Brand Name CAT
Model Number C4.4
Place of Origin China

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  1. Product Details
  2. Company Details

Product Specification

Payment Terms T/T,Western Union Supply Ability 100pcs,1-15 work days
Delivery Time 1-15 work days Packaging Details Original/Neutral/Customized
Part No 571-0939 5710939 Brand CAT
Model C4.4 Condition New
Quality High Quality MOQ A piece
Main product Electrical parts, engine parts, hydraulic parts, wearing parts Payment terms Wire transfer, paypal, AliPay, Western Union, Bank transfer
Mode of transport DHL Express Express UPS Brand Name CAT
Model Number C4.4 Place of Origin China
High Light CAT C4.4 Engine 5710939 Injector ，571-0939 Fuel Injection Component ，CAT C4.4 Engine Fuel Injection Component

For National Standard IV 571-0939 5710939 Injector CAT C4.4 Engine Parts

 

 

Specification

 

Part No
571-0939 5710939
brand
CAT
Engine model
C4.4
Condition
New
Quality
High Quality
Minimum order quantity
A piece
Main product
Electrical parts, engine parts, hydraulic parts, wearing parts,
Payment terms
Wire transfer, paypal, AliPay, Western Union, Bank transfer
Mode of transport
DHL Express Express UPS

 


Description

 
The 571-0939 Injector is a core fuel injection component developed specifically for CAT C4.4 engines that meet the National Stage IV Motor Vehicle Pollutant Emission Standard. It undertakes the key responsibility of precisely controlling fuel injection quantity, injection timing, and atomization effect. Adopting high-pressure common rail injection technology, this injector integrates a high-precision electromagnetic control valve core and a multi-hole injector nozzle inside, which can uniformly atomize fuel into micron-level particles, ensuring full mixing of fuel and air in the combustion chamber to achieve efficient combustion. Strictly adhering to CAT's original design specifications and National Stage IV environmental protection technical requirements, the product not only adapts to the fuel system control logic of the C4.4 engine through material upgrading and structural optimization, but also effectively reduces nitrogen oxide and particulate matter emissions while improving fuel economy. Whether it is used for maintenance and replacement of C4.4 National Stage IV engines in construction machinery, commercial vehicles or fixed power equipment, it can ensure that the engine meets environmental emission requirements and maintains a stable operating state.

 

 

Advantage

 

  • National Stage IV Compatibility, Worry-free Emission Compliance:Optimized fuel injection strategy for National Stage IV emission requirements, injection pressure increased to 1800bar. Combined with the 6-hole precision injector nozzle design, the fuel atomization particle size is controlled between 10-20μm, and the combustion efficiency is increased by more than 12%. Nitrogen oxide emissions are reduced by 40% and particulate matter emissions by 60% compared with non-National Stage IV compatible injectors. It fully meets the GB17691-2018 National Stage IV emission standard, helping equipment pass environmental testing smoothly.
  • Excellent Injection Precision, Outstanding Fuel Economy:Equipped with an imported high-precision electromagnetic valve core with a response time of only 0.001s, which can adjust the injection quantity in real time according to different engine working conditions (idle speed, acceleration, high load), with an error controlled within ±1%. On the premise of ensuring power output, the engine's fuel consumption per 100 kilometers is reduced by 5%-8%, which can significantly reduce operating costs in long-term use.
  • Wear-resistant and Corrosion-resistant Material, Adaptable to Harsh Working Conditions:The injector nozzle is made of tungsten-cobalt alloy, reinforced by plasma spraying, with a surface hardness of over HRC65, and the fuel scouring and wear resistance is improved by 50%. The valve body is made of corrosion-resistant stainless steel, which can adapt to low-quality fuel with high sulfur content, effectively resist corrosion and blockage caused by fuel impurities, and extend the service life to more than 3000 hours.
  • Original Factory Protocol Compatibility, Convenient Installation and Debugging:Fully matches the ECU (Electronic Control Unit) communication protocol of CAT C4.4 engine, and can be directly installed and used without modifying the control program. Equipped with a dedicated diagnostic interface, it can quickly complete injection timing calibration and fault detection through CAT's original diagnostic equipment, greatly simplifying the maintenance and debugging process and reducing the technical threshold for maintenance.

 


Performance

 

 
Parameter Category
Specific Indicators
Applicable Engine Model
CAT C4.4 (National Stage IV Standard)
Product Model
571-0939 / 5710939
Injection Method
High-pressure Common Rail
Maximum Injection Pressure
1800bar
Number of Injector Nozzle Holes
6 Holes
Fuel Atomization Particle Size
10-20μm
Solenoid Valve Core Response Time
≤0.001s
Injection Quantity Error
±1%
Working Voltage
12V/24V (Adapts to Engine Electrical System)
Working Temperature Range
-40℃ - 120℃
Injector Nozzle Material
Tungsten-Cobalt Alloy (Plasma Spraying Reinforcement)
Valve Body Material
Corrosion-Resistant Stainless Steel
Recommended Fuel Grade
Diesel (Complies with GB 19147-2016 Standard)
Designed Service Life
≥3000 Hours
Connection Method
Threaded Connection (Matches Original Factory Interface)
Adaptable Emission Standard
National Stage IV Motor Vehicle Pollutant Emission Standard

 

 

FAQ


Q1: When will my goods be shipped?
A: Your goods will be dispatched within 24 hours after payment confirmation.

 

Q2: What is the lead time?
A: We maintain sufficient stock for immediate fulfillment.

 

Q3: What shipping methods do you offer?
A: We ship via sea, air, or express (DHL, FedEx, TNT, UPS, EMS).

 

Q4: What is the delivery time?
A: Stock items take 2 to 5 days; pre-order items take 7 to 15 days. Contact us for specifics.

 

Q5: How can I track my shipment?
A: We will provide you with the tracking number as soon as your order is shipped.

 

 

Packing&Shipping

 

Company Details

Bronze Gleitlager

,

Bronze Sleeve Bushings

 and 

Graphite Plugged Bushings

 from Quality China Factory

  • Business Type:

    Distributor/Wholesaler

  • Year Established:

    2019-07-01

  • Employee Number:

    80~100

  • Ecer Certification：

    Verified Supplier

Guangzhou Pinxin Engine Co., Ltd | Premium Diesel Engine Parts Supplier Guangzhou Pinxin Engine Co., Ltd is a leading manufacturer and supplier of high-quality diesel engine components, specializing in cylinder liners, pistons, engine blocks, crankshafts, fuel injectors, and diesel pumps. As an aut... Guangzhou Pinxin Engine Co., Ltd | Premium Diesel Engine Parts Supplier Guangzhou Pinxin Engine Co., Ltd is a leading manufacturer and supplier of high-quality diesel engine components, specializing in cylinder liners, pistons, engine blocks, crankshafts, fuel injectors, and diesel pumps. As an aut...

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  • Reach Us
  • Guangzhou Pinxin Engine Co., Ltd.
  • No. 106B, Donghuan Road, Zhujun Village, Tianhe District, Guangzhou City
  • https://www.excavators-engineparts.com/

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