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Diesel Fuel Injector 250-1314 10r-1290 Common Rail Injector for Cater-pillar Excavator Dozer 3508b 3512b 3516b Diesel Enqine
| MOQ: | 1 pieces |
| Price: | US $296-302 / piece |
| Payment Method: | L/C,D/A,D/P,T/T,Western Union |
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Product Name
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High Quality Common Rail Diesel Fuel Injector
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Place of Origin
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Wuhan,China
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Warranty
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3 Months
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Delivery time
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3-15 Days, subject to the order quantity
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Quality
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100% Tested
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Packing
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Customer Requirement
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Service
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After-Sales Service
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Size
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Standard Size
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Payment
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TT,Trade Assurance,PayPal,Credit Card
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Advantage
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Perfect Fit
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This specification of electro-hydraulic injection valve component (standard part number: 250-1314, common OE cross-reference and interchangeable part numbers include 2501314, 10R-4764, 10R4764, 238-8091, etc.) is meticulously manufactured for heavy-duty construction machinery, mining equipment, and industrial-grade diesel power platforms (such as the C7 series 7.2L diesel engine, widely matched with 324D, 325D, 329D tracked excavators, 120K/140K graders, and loaders). As the micro-metering and spray actuator of the HEUI electro-hydraulic unit injection system, it bears the crucial responsibility of accurately metering high-pressure diesel fuel and rapidly converting it into micron-level ultrafine atomized particles within microseconds, promoting comprehensive and uniform mixing of fuel and intake airflow, and releasing strong and smooth power output.
The product adheres to the industrial design principles of "high-pressure particle refinement and microsecond-level ultra-fast response." The core needle valve assembly and armature control valve core are made from carefully selected aerospace-grade quenched special alloy steel, combined with ultra-high precision geometric grinding and low-friction polishing. The surface is covered with a dense, anti-coking hardened coating, effectively preventing early erosion caused by diesel particulate matter. After installation, mechanics and equipment operators will experience a clear and intuitive performance improvement: ignition starts crisply and quickly, and the severe vibration at low-speed idling subsides and becomes smooth; when facing heavy-duty excavation, high-load bulldozing, or steep slope climbing conditions, the control lever and throttle are tightly integrated, resulting in rapid acceleration and continuous bursts of power, while significantly reducing black smoke from exhaust fumes, delivering an excellent overall fuel economy control experience.
Problems Solved: Traditional OEM and multi-level procurement models involve complex processes that easily lead to excessive tolerances in component fit, uneven fuel supply to cylinders, and high-pressure leaks, while significantly increasing procurement costs.
Value Gained: By relying on a self-built standardized production plant for precision manufacturing throughout the entire process, the layers of intermediaries are eliminated, ensuring consistent injection height across cylinders. This reduces maintenance costs and provides a solid and reliable power guarantee for long-term equipment operation.
Problems Solved: Low-quality parts are prone to issues such as delayed solenoid valve response, internal pressure leakage, and needle valve jamming, leading to unstable power output after installation and wasted time and money on repeated disassembly and debugging.
Value Gained: Every injector undergoes fully automated testing before leaving the factory. Under fully simulated high-temperature and ultra-high-pressure conditions, the injection volume and return oil sealing are precisely calibrated for different pressure ranges, ensuring immediate usability after installation and greatly saving time and costs associated with equipment disassembly and debugging.
Problems Solved: Commercial vehicles and construction machinery are high-upload, high-revenue tools. If they become stranded due to fuel system failure, the resulting downtime and lack of materials will incur costly delays, compensation, and lost work time.
Value Brought: The warehousing center maintains a sufficient stock of best-selling specifications year-round. After order confirmation, a rapid response is provided, with priority packing and dispatch within 24-48 hours, significantly shortening the logistics and delivery cycle. This helps fleets and owners quickly restore equipment availability and effectively avoids downtime losses.
Problems Solved: Addressing the issue of premature wear and valve core seizure caused by differences in diesel lubricity and sulfur content in different regions.
Value Brought: Core valve components are made of high-strength special bearing steel with a surface anti-corrosion hardening treatment, significantly improving fatigue resistance and wear resistance. Even under harsh environments and prolonged high-load operation, it maintains stable performance, avoiding the additional costs of frequent disassembly and repair.
| Parameter Name | Parameter Value |
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| Product Name | Heavy-Duty Engineering Machinery Electro-Hydraulic Unit Injector (HEUI Injector) |
| Standard OE Part Number | 250-1314 |
| Interchangeable Part Number | 2501314 / 10R-4764 / 10R4764 / 238-8091 |
| Applicable Engine Platform | C7 Series 7.2L Diesel Engine |
| Fuel Supply System | HEUI Electro-Hydraulic Unit Injection System |
| Core Needle Valve Material | Aerospace-grade hardened bearing steel, corrosion-resistant high-hardness special alloy steel |
| Needle Valve Surface Treatment | High-density, ultra-wear-resistant DLC hardened coating |
| Injector Orifice Micro-Engraving Technology | EDM High-Precision Electrical Discharge Micro-Orifice Machining |
| Operating Temperature Range | -40°C to +125°C |
| Internal Sealing Components | Original Equipment Manufacturer (OEM) High-Temperature Resistant and Swell-Resistant Special Fluororubber (FKM O-Rings) |
| Net Weight per Unit | Approx. 1.15 kg / piece |
| Testing Standards | 100% Automated Full-Condition Bench Flow and Sealing Tests |
Open-Pit Mining and Large Tracked Excavator Operations: Large excavators and mining loading equipment continuously excavate and load large rocks in harsh, high-dust, and high-intensity environments, placing extremely high demands on engine fuel supply stability and power output. When on-site operators notice a decrease in equipment digging force, significant and severe vibration at idle, or frequent black smoke from the exhaust pipe, maintenance personnel promptly replace worn parts and install this high-precision fuel injection valve component. After replacement, fuel injection atomization is extremely uniform, and the hydraulic system power output is restored to ample and stable levels, ensuring efficient and uninterrupted mining operations.
Large-scale road construction and continuous operation scenarios for graders and bulldozers: When graders and bulldozers are engaged in highway infrastructure work, their engines need to maintain a stable low-speed, high-torque output for extended periods. When equipment experiences starting difficulties, sluggish acceleration, or abnormally high fuel consumption, the engineering mechanic team will replace the entire fuel supply system. Precise electronic injection control restores smooth engine operation, significantly improving fuel efficiency and acceleration response, avoiding additional labor costs caused by construction downtime.
Q: Can I use the product directly after installation? Is it necessary to enter a correction code?
A: Each injector has a unique flow correction code (IMA code) generated during factory testing. It is recommended to use a diagnostic tool to flash the correction code into the engine ECU after installation to achieve optimal fuel efficiency and smoothness.
Q: What is the inventory and delivery time for bulk purchases?
A: We have our own factory and large warehouse, and maintain a large inventory of this model year-round. Standard orders can be packaged and shipped within 24-48 hours, and large-volume orders can also be quickly scheduled for production line setup.
Q: How do you guarantee the quality and performance of your products before they leave the factory?
A: All injectors undergo assembly in a Class 100 cleanroom and 100% full-condition bench testing, covering key indicators such as sealing, pre-injection volume, full-load injection volume, and return oil volume. These stringent testing standards ensure that they are high-quality products from the outset.
Q: What is the warranty period for your products? What are your after-sales service details?
A: We offer a 12-month warranty period. If a performance failure occurs within the warranty period due to non-human factors, we provide rapid replacement or after-sales technical support to ensure your peace of mind when using our products.
