Common Fuel Injection Pump 0414755018 0414755118 for Liebherr D936la6 D934sag 10116257 Unit Injector Pump

This heavy-duty electronically controlled unit pump (PLD/PDE) / high-pressure fuel supply pump assembly (Part ID: 0414755018 / 0 414 755 018; common cross-references and OE interchange numbers include 0414755002, 0414755003, 02112707, 02113151, 04286979, etc.) is precision-engineered. Designed primarily for the BFM1013 / TCD2013 series (4.8L and 7.2L inline-4 and inline-6 ​​diesel platforms), it is widely used in heavy construction machinery, excavators, loaders, large agricultural equipment, and industrial generator sets. As the core actuating unit responsible for generating ultra-high pressure and delivering metered fuel in the PLD/PDE system, it efficiently pressurizes low-pressure diesel and delivers it to the injector under direct camshaft drive and precise solenoid valve control, ensuring a consistent and robust fuel supply to the powertrain.

The pump's design and manufacturing adhere to rigorous standards regarding microscopic fit tolerances, ultra-high-pressure resilience, and rapid response. The core control spool and plunger assembly are crafted from high-hardness special alloy steel, featuring ultra-precise geometric grinding and low-friction polishing. A dense, ultra-hard surface coating effectively prevents internal scratching and pressure loss caused by fuel impurities. Upon installation, operators and technicians will notice immediate performance improvements: crisp cold starts and smooth, quiet idling at low RPMs. Under demanding conditions—such as heavy-load excavation, steep hill climbing, or prolonged full-load operation—the unit delivers responsive throttle control and smooth, powerful acceleration. Additionally, it reduces black smoke emissions, resulting in superior fuel efficiency and a stable, confident operating experience.

• Direct-from-factory manufacturing with standardized quality control. We effectively reduce procurement costs by eliminating issues often caused by intermediary distribution—such as cumulative tolerance errors in component fit, uneven fuel supply pressure across cylinders, and risks of high-pressure leaks. Leveraging standardized production facilities, we implement end-to-end quality control and remove unnecessary markups. This ensures highly consistent fuel pressure and flow rates across all cylinders, providing reliable power for vehicle and equipment operations while keeping maintenance budgets under control.
• Rigorous quality inspection via ultra-high-pressure digital dynamic test benches. We address common issues associated with unstable component quality—such as response delays, pressure-release malfunctions causing engine misfires and vibration, and the wasted time and expense of repeated disassembly and adjustment. Every unit pump assembly undergoes automated testing before leaving the factory; flow rates and sealing integrity across various pressure ranges are precisely calibrated in environments simulating real-world high-temperature, ultra-high-pressure conditions. This ensures "ready-to-install" performance, drastically saving time and costs associated with installation and tuning.
• Large-scale warehousing with rapid response and immediate shipping. Recognizing that construction and commercial transport equipment are high-utilization assets, we address the costly penalties and lost productivity caused by downtime resulting from fuel system failures. Our warehouse maintains ample stock year-round; upon order confirmation, we respond quickly and ship within 24–48 hours. This significantly shortens logistics wait times, helping fleets and owners restore operations rapidly and avoid losses associated with equipment downtime.
• High-hardness, specially quenched mating components with wear-resistant coatings. We tackle issues where poor diesel lubricity or high sulfur content can lead to premature wear and valve spool seizure in mating components. Our core components utilize high-hardness, specialized bearing steel and surface anti-corrosion treatments. This significantly enhances fatigue and wear resistance, ensuring stable performance even under harsh conditions and prolonged high-load operation, thereby reducing the extra costs associated with frequent repairs.

• Crawler excavators and earthmoving operations: Excavators performing high-intensity digging and material handling at construction sites, often operating under continuous heavy loads for extended periods. Maintenance personnel should replace the electronically controlled unit pump if operators notice sluggish movement during excavation and material transfer, severe vibration at low idle speeds, or engine stalling under heavy loads. After installation, hydraulic pressure builds up smoothly and rapidly, engine power is restored, and throttle response is immediate and robust, ensuring project schedules remain on track.
• Industrial Diesel Generator Sets and Field Backup Power: Generator sets operating in mines or remote field locations require continuous, stable power supply over long periods, placing extremely high demands on the fuel supply stability and fuel efficiency of the unit pump. When issues such as frequency fluctuations, failure to ramp up speed under load, or black exhaust smoke occur, the maintenance team replaces the unit with a full set of high-specification unit pump components. Precise fuel delivery control restores smooth engine operation, ensuring safe and continuous power supply.

A: Each unit pump undergoes flow rate and solenoid valve response calibration during factory testing. 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 after air has been bled from the fuel system.

A: We operate our own factory and large-scale warehouses, maintaining substantial, year-round inventory for this model. Standard orders can be packed and shipped within 24–48 hours, while bulk orders can be quickly scheduled for production.

A: All unit pumps undergo assembly in a Class 100 cleanroom environment and 100% full-load bench testing. Tests cover critical metrics such as sealing integrity, high-pressure response, and fuel return volume; our rigorous testing standards ensure that every unit shipped is a high-quality product.

A: We offer a 12-month warranty. In the event of a performance failure due to non-human factors during the warranty period, we provide rapid replacement or technical support, ensuring you can use the product with confidence.