| MOQ: | 1 pieces |
| Price: | US $300-319 / piece |
| Payment Method: | L/C,D/A,D/P,T/T |
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Product Name
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High Quality Common Rail Diesel Fuel Injection Pump
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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 high-pressure diesel common-rail fuel pump assembly (Part ID: 294050-0280 / 2940500280; common OE cross-references include 22100-E0300, 22100-E0301, 22100-E0302, 22100-E0303, 22730-1311, etc.) is precision-engineered for the J08E / J08E-TM / J08E-UR series 7.7L six-cylinder heavy-duty diesel engine platform. It is widely installed in 500-series heavy-duty trucks, large passenger buses, and various construction machinery. Serving as the core power source for generating ultra-high rail pressure and ensuring stable fuel delivery within the fuel supply system, it efficiently pressurizes low-pressure diesel and delivers it evenly to the high-pressure common rail, guaranteeing a continuous and steady fuel supply across all engine speeds and operating conditions.
The pump body is constructed from high-strength forged alloy, while the core plunger and control valve spool undergo precision quenching and ultra-hard, wear-resistant coating treatments to effectively withstand erosion from diesel impurities and prevent internal pressure loss. Upon installation, operators and technicians will notice a significant improvement in power output: cold starts are quick and smooth, idling is stable, and pump operating noise is reduced. During heavy-load hill climbs or long-distance highway cruising, throttle responsiveness is markedly enhanced, providing agile and robust acceleration—effectively restoring factory-standard driving dynamics and excellent fuel efficiency.
Smart manufacturing at the source factory combined with cost optimization across the entire process. We provide a one-stop, high-standard parts supply solution that eliminates the complexities of procurement, excessive intermediary markups, and inconsistent quality tolerances. Precision manufacturing via standardized assembly lines ensures highly consistent oil supply pressure and flow rates across all cylinders, delivering reliable power output for vehicle and equipment operations while keeping maintenance budgets under control.
Dynamic pressure testing across all operating conditions and rigorous quality inspections. To address issues such as oil pressure fluctuations, sluggish acceleration, and intermittent warning lights often caused by inconsistent component quality, every high-pressure fuel pump undergoes automated bench testing simulating real-world high-temperature and high-pressure conditions. Precise testing of sealing integrity and fuel return volume across various pressure ranges ensures the unit is ready for immediate installation, significantly reducing the time and cost associated with assembly and adjustment.
Large-scale, consistent inventory and rapid shipping capabilities. To mitigate downtime losses and operational delays caused by fuel system failures in commercial vehicles and heavy equipment, our distribution centers maintain ample stock of key specifications. Orders are quickly processed and shipped within 24–48 hours, effectively shortening logistics lead times and helping fleets and owners get back to work quickly.
High-hardness, corrosion-resistant valve components and wear-resistant coatings. Designed to combat premature wear and valve spool sticking caused by poor diesel lubricity or high sulfur content in certain regions, critical internal wear components are crafted from premium special-alloy bearing steel. Enhanced with specialized surface hardening treatments, these parts offer superior fatigue and wear resistance, maintaining stability under harsh environments and prolonged, high-load operation, thereby significantly extending service life.
| Parameter Name | Parameter Value |
|---|---|
| Product Name | High-Pressure Common Rail Fuel Supply Pump for Heavy-Duty Trucks and Buses |
| Standard Part Number | 294050-0280 |
| Cross-Reference Numbers | 2940500280 / 22100-E0300 / 22100-E0301 / 22100-E0302 / 22730-1311 |
| Compatible Engine Platform | J08E / J08E-TM / J08E-UR Series 7.7L Diesel Engine Platform |
| Fuel Supply System | HP4 Electronically Controlled High-Pressure Common Rail System |
| Pump Body Material | High-strength, high-density forged alloy steel |
| Internal Precision Component Material | Specially quenched bearing steel / Wear-resistant hardened coating |
| Maximum Operating Pressure | ≥ 1800 bar (steady-state output) |
| Operating Temperature Range | -40°C to +125°C |
| Seal Material | High-temperature and corrosion-resistant special fluoroelastomer (FKM) |
| Unit Net Weight | Approx. 7.80 kg/unit |
| Quality Inspection Standard | 100% automated test bench verification of pressure and flow across all operating conditions |
Heavy-duty truck trunk-line logistics and long-haul freight: Heavy-duty trucks equipped with 7.7L diesel engines operate under full load for extended periods on major highways. When vehicles experience power struggles during high-gear hill climbs, sluggish acceleration, or abnormal fuel consumption increases, maintenance teams install this high-pressure fuel supply pump. Post-installation, fuel pressure builds rapidly and remains stable, providing robust and responsive acceleration under heavy loads, thereby ensuring the efficient and punctual completion of long-haul transport missions. Intercity and Commuter Bus Operations: Large passenger buses endure long-distance daily travel, demanding exceptional engine stability and consistent fuel delivery. When vehicles exhibit sluggish cold starts, noticeable low-speed vibration, or intermittent low-oil-pressure warnings, technicians can promptly install this high-specification high-pressure fuel pump to restore power output and smooth operation, ensuring a comfortable and safe journey.
Q: Can the fuel pump be installed and used immediately upon receipt? Is recalibration required?
A: Pressure and flow rate calibrations across all operating conditions are completed prior to shipment. Provided the fuel lines are clean, the unit can be put into service immediately after installation by a professional technician using standard torque specifications and proper air-purging procedures.
Q: What are the lead times and stock availability for bulk orders?
A: We operate our own production facilities and warehousing centers, maintaining a steady stock of this model year-round. Standard orders ship within 24–48 hours of confirmation, while bulk orders can be quickly scheduled for production.
Q: What quality tests does the product undergo before leaving the factory?
A: All products are assembled in a Class 100 cleanroom environment and undergo 100% dynamic bench testing at high temperatures and ultra-high pressures. We rigorously monitor pressure build-up, fuel return volume, and sealing performance to ensure the product meets quality standards for vehicle installation.
Q: What is the warranty period for the product?
A: We offer a 12-month warranty on this product. Should any malfunction occur due to non-human factors during the warranty period, we provide rapid after-sales technical support and service to protect your interests.