National Standard IV 571-0939 5710939 Injector CAT C4.4 Engine Fuel Injection Component
Price:
USA$ 250-680
MOQ:
1pcs
Delivery Time:
1-15 work days
Brand:
CAT
Product Description
For National Standard IV 571-0939 5710939 Injector CAT C4.4 Engine Parts
Specification
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Part No
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571-0939 5710939
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brand
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CAT
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Engine model
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C4.4
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Condition
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New
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Quality
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High Quality
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Minimum order quantity
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A piece
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Main product
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Electrical parts, engine parts, hydraulic parts, wearing parts,
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Payment terms
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Wire transfer, paypal, AliPay, Western Union, Bank transfer
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Mode of transport
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DHL Express Express UPS
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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
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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.
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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.
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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.
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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
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Parameter Category
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Specific Indicators
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Applicable Engine Model
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CAT C4.4 (National Stage IV Standard)
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Product Model
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571-0939 / 5710939
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Injection Method
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High-pressure Common Rail
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Maximum Injection Pressure
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1800bar
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Number of Injector Nozzle Holes
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6 Holes
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Fuel Atomization Particle Size
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10-20μm
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Solenoid Valve Core Response Time
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≤0.001s
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Injection Quantity Error
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±1%
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Working Voltage
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12V/24V (Adapts to Engine Electrical System)
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Working Temperature Range
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-40℃ - 120℃
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Injector Nozzle Material
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Tungsten-Cobalt Alloy (Plasma Spraying Reinforcement)
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Valve Body Material
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Corrosion-Resistant Stainless Steel
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Recommended Fuel Grade
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Diesel (Complies with GB 19147-2016 Standard)
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Designed Service Life
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≥3000 Hours
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Connection Method
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Threaded Connection (Matches Original Factory Interface)
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Adaptable Emission Standard
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National Stage IV Motor Vehicle Pollutant Emission Standard
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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
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Get in Touch
Have questions about our products or want to discuss a custom order? Our team is ready to help you.
Company
Guangzhou Pinxin Engine Co., Ltd.
Location
广州市白云区大源街锦石三路33号之七三7楼D122
Contact Person
John