Product Description: The 0R-0471 injector

2026-04-02

Product Description: The 0R-0471 injector is a core fuel injection component specially developed by c-aterpillar for the 3116 series diesel engines, and it is a key component to ensure the efficient and stable operation of the engine. Strictly following c-aterpillar's original factory technical standards, this product adopts a high-precision electromagnetic control module and precision machining technology, which accurately matches the fuel supply needs of the 3116 engine, realizes precise control of injection timing and fuel injection volume, ensures uniform fuel atomization and full combustion, and effectively reduces fuel consumption and exhaust emissions. Its main body is made of high-strength alloy steel, which has undergone special hardening treatment, with excellent high-pressure resistance, wear resistance and corrosion resistance, and can adapt to the harsh working environment of high temperature, high load and high dust in construction machinery. The product size is completely consistent with the original factory interface, supporting direct replacement and installation without additional modific-ation, which greatly shortens the maintenance cycle and reduces maintenance costs. It is widely used in excavators, loaders, motor graders and industrial generator sets equipped with c-aterpillar 3116 engines, providing a reliable guarantee for the long-term stable operation of the equipment.

Basic Information	Specific Specific-ations
Product Name	c-aterpillar Diesel Engine Injector Assembly
Original Model	0R-0471 (OR0471)
Cross-Adaptation Models	4P-2995, 0R-3006, 7E-8952, 0R-3389 (compatible with 3116 series)
Applicable Engines	c-aterpillar 3116 series diesel engines (main adaptation), compatible with 3114, 3126 series
Product Status	Brand New Original / Original Standard Remanufactured (optional)
Control Type	Electromagnetic type (ECU electronic control, matching 3116 engine control system)
Fuel Type	Diesel (adaptable to national standard and non-standard diesel, strong impurity resistance)
Net Weight	0.5kg
Packaging Size	20cm × 10cm × 10cm (shockproof packaging to avoid damage during transportation)

Core Technical Parameters	Parameter Value
Injection Opening Pressure	21.5 ± 0.5 MPa (accurately matching the working needs of 3116 engine)
Working Pressure Range	40–120 MPa (adapting to different working conditions and loads of the engine)
Dynamic Response Time	≤ 1.5 ms (fast injection response, ensuring smooth power output)
Single Injection Duration	≤ 1.2 ms (precisely controlling fuel injection volume to avoid fuel waste)
Spray Pattern	c-aterpillar Standard S-Type Atomization (uniform atomization, improving combustion efficiency)
Needle Valve Pair Clearance	1–3 μm (precision fit, excellent sealing performance, reducing leakage)
Sealing Surface Roughness	Ra ≤ 0.1 μm (improving sealing reliability and extending service life)
Key Component Hardness	HRC 58–62 (wear resistance, suitable for long-term high-load operation)
Injection Cycle Life	≥ 1,000,000 times (strong durability, reducing replacement frequency)

Structural Components	Material/Process	Performance Advantages (Adapted to 3116 Series)
Injector Body	High-strength alloy steel, integral forging + precision machining	Fatigue resistance, high pressure resistance, corrosion resistance, adapting to the long-term high-load working scenario of 3116 engine
Needle Valve Pair	High-quality alloy, precision ground pairing, gapless fit	Uniform atomization, reliable sealing, small wear, ensuring the combustion efficiency of 3116 engine
Control Spring	High-temperature resistant alloy spring, dual-spring design	The main spring controls the opening pressure, and the auxiliary spring ensures the quick closing of the needle valve, improving injection accuracy
Solenoid Valve	High-precision coil, anti-interference design	Fast response speed, precise control, adapting to the 3116 engine ECU control system, strong anti-interference ability

Applicable Equipment Types	Typical Models (Equipped with 3116 Engine)
Excavator	c-aterpillar 320B, 322B, 325B, etc.
Wheel Loader	c-aterpillar 928G, 938G, etc.
Motor Grader	c-aterpillar 120H, 140H, etc.
Other Equipment	Industrial generator sets, heavy-duty trucks, engineering auxiliary equipment (equipped with 3116/3126 engines)

Quality & Testing Standards	Specific Requirements
Factory Inspection	100% full inspection, including spray pattern, fuel leakage, coil resistance, fuel injection accuracy, etc., fully complying with the 3116 engine adaptation standards
Production Certific-ation	Passed ISO 9001, TS16949 quality system certific-ation, following c-aterpillar's original factory production standards
Performance Guarantee	Fully matching the original factory technical parameters of c-aterpillar 3116 engine, direct replacement without modific-ation, quality guarantee in line with industry standards

Core Product Advantages	Detailed Description
Precise Adaptation	Specially designed for c-aterpillar 3116 series engines, the size, interface and control logic are completely matched, no modific-ation required, direct installation
High Efficiency & Energy Saving	Precise injection control + uniform atomization, improving fuel combustion efficiency, effectively reducing the fuel consumption of 3116 engine and reducing exhaust emissions
Reliable & Durable	High-strength material + precision technology, wear resistance, high pressure resistance, corrosion resistance, adapting to the harsh working conditions of construction machinery, long service life
Easy Maintenance	Direct replacement design, simple installation, greatly shortening maintenance time, reducing maintenance costs, ensuring equipment attendance rate

Fault Tips (Replacement Scenarios)	Specific Phenomena (Adapted to 3116 Engine)
Power Abnormality	3116 engine idles unsteadily, lacks power during acceleration, has difficulty starting, accompanied by black smoke emission
Fuel Consumption Abnormality	Significant increase in fuel consumption, obvious decrease in engine power, fuel consumption increased by more than 10% under the same working conditions
Mechanical Failure	Engine cylinder misfire, abnormal noise, injector leakage, excessive oil return
Other Abnormalities	ECU alarm, poor injection atomization, leading to engine jitter and inability to run at full load normally

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Product Description: The 0R-0471 injector

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Cummins Diesel Injector

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Caterpillar Fuel Injector

VOLVO Diesel Injector

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