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294000-1550 294000-1560 22100- E0580 Diesel Fuel Pump HP3 for Hino J05E N04C Trucks
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Product Name
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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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12 Months
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Delivery time
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3-5 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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Engine Compatibility
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Hino J05E Engine Series (Specifically J05E-TA, J05E-TB, and other variants)
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Hino N04C Engine Series (Found in select configurations)
2. Vehicle & Equipment Applications
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Hino Trucks:
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Hino 300 Series / Hino Dutro (Light to medium-duty commercial trucks)
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Hino 500 Series / Hino Ranger (Medium-duty trucks fitted with the 4-cylinder J05E engine variant)
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Construction & Industrial Machinery:
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Various mid-sized Kobelco Excavators (e.g., SK200-8, SK210-8, SK250-8) that run on the Hino J05E powertrain.
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Company info
Wuhan Jinhong Auto Parts Co., Ltd. is a manufacturer and exporter of common rail fuel injectors integrating manufacturing,processing and R & D.
Our factory has a complete and scientific management system and professional product development team, products have been advancing with The Times, quality is also constantly improving, product quality and service have been widely recognized by the industry. Our company has its own factory, combined with the sales model of trade factory, we can provide customers with a full range of services. In addition, our company has international logistics partners to reduce transportation costs for customers. Our company is a leading manufacturer and supplier of Marine parts and auto parts in China. At the same time, we have established partnerships with hundreds of factories specializing in the production of various high-quality auto parts.
Our goal is to provide the best service at the best price, your satisfaction is our best return. Look forward to working with you. Welcome friends from all walks of life to visit, guidance and business negotiations.
Q&A
Q1: What are the common symptoms of a failing 294000-1550 fuel pump?
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Hard Starting / Long Cranking: The pump fails to build up the minimum required rail pressure quickly enough during startup, especially when the engine is cold.
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Lack of Power under Load: The engine bogs down or enters "Limp Mode" when climbing hills or lifting heavy loads due to insufficient fuel volume.
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Rough Idling / Engine Misfires: Fluctuations in rail pressure lead to uneven fuel delivery across the cylinders.
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Black or White Exhaust Smoke: Improperly pressurized fuel alters the injection spray pattern, leading to incomplete combustion.
Q2: Which fault codes (DTCs) usually point to this pump?
On Hino trucks and Kobelco excavators, a failing pump typically triggers diagnostic trouble codes related to the fuel rail pressure (FRP) system:
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P0087: Fuel Rail/System Pressure - Too Low
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P0088: Fuel Rail/System Pressure - Too High (often a stuck SCV)
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P1229: Fuel Leakage / Pump Malfunction
Q3: What is the most common component to fail on this pump?
The Suction Control Valve (SCV). The SCV acts as the gatekeeper, regulating the amount of fuel that enters the high-pressure chambers. Over time, fuel contamination (dirt or water) can cause the SCV to stick, leading to erratic rail pressure.
Q4: Does the pump require calibration after installation?
Yes. The common rail system relies heavily on precise electronic control. After installing a new or remanufactured pump, it must be properly calibrated and learned by the Engine Control Unit (ECU) using a compatible diagnostic scanner. Skipping this calibration can result in a "no-start" condition or an unstable idle.
Q5: What is the best way to prevent premature failure?
The internal tolerances of the Denso HP3 common rail pump are microscopic. The absolute best prevention is strict fuel hygiene:
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Change the primary and secondary fuel filters exactly on schedule.
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Always use high-quality, clean diesel fuel to prevent water and debris from scratching the internal pistons.
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Ensure the fuel intake line clamps are tight; loose clamps can let air seep into the system, causing cavitation and accelerated wear inside the pump.
