0414799018 0414799024 0414799047 0414799048 Diesel Unit Pump 0986445022 for Mercedes-Benz

<Product Description>
This electronically controlled unit pump assembly for high-pressure diesel fuel injection (Core ID: 0414799018 / 0 414 799 018; common interchangeable codes and reference numbers include 0414799008, 0414799005, 0414799015, 02113000, 02112860, 2113000, 2112860, 0414799026, etc.) is precision-engineered. It is primarily designed for 4-cylinder and 6-cylinder heavy-duty turbocharged diesel engines with displacements ranging from 4.0L to 7.2L—such as the TCD 2012, TCD 2013, BF4M2012, and BF6M2013 series—and is widely used in heavy-duty excavators, large crawler rotary drilling rigs, high-pressure concrete pump trucks, high-tonnage asphalt rollers, specialized airport ground support equipment, and industrial continuous-duty backup generator sets. As a critical electronically controlled component within the heavy-duty unit pump fuel system, it manages rapid high-pressure accumulation and millisecond-level pulse metering. Driven by the synergy of the crankshaft/camshaft mechanism and microsecond electromagnetic valve pulses, it performs the vital task of pumping diesel at ultra-high pressure and injecting it as ultra-fine atomized particles, thereby ensuring thorough mixing and combustion with the compressed intake air in the cylinder. In terms of mechanical structure and material selection, these components strictly adhere to standards ensuring precision fit tolerances, resistance to high-frequency reciprocating mechanical shock, and long-lasting durability against vibration-induced fatigue. Internal high-speed precision plunger assemblies, solenoid control valves, and high-pressure sealing components are crafted from premium aerospace-grade vacuum-quenched alloy structural steel and corrosion-resistant bearing steel. Their surfaces undergo nano-scale mirror-finish grinding and are treated with an ultra-hard, wear-resistant, and anti-corrosive composite coating, effectively preventing mechanical scoring, premature uneven wear, and high-pressure internal leakage caused by particulate impurities in low-quality diesel. Upon installation, operators and maintenance technicians will experience immediate performance improvements: the engine starts instantly from a cold state and runs steadily at idle with low noise and minimal vibration. Under demanding conditions—such as continuous heavy-load excavation, high-pressure operations, or prolonged high-speed cruising—throttle response is crisp and robust, high-torque power delivery is smooth and consistent, and exhaust emissions are significantly cleaner, fully restoring factory-level power output and excellent fuel economy.

<Product Advantages>
Standardized precision machining and direct-supply quality control from a dedicated smart manufacturing facility. This approach effectively lowers procurement costs while addressing issues common to multi-tier distribution channels, such as excessive mechanical fit tolerances, inconsistent fuel injection volumes across cylinders, and risks of high-pressure leakage. By leveraging in-house CNC machining and strict tolerance control across the entire production process, we eliminate unnecessary markups and ensure highly balanced fuel supply pressure and injection volumes across all cylinders. This not only reduces equipment maintenance budgets but also provides reliable, stable power to ensure the smooth operation of various types of construction machinery.

Strict calibration on ultra-high-pressure digital dynamic test benches. This process eliminates common issues found in inferior replacement parts—such as solenoid actuation lag or internal pressure-relief valve sticking—which can cause severe engine shuddering and misfires, leading to wasted labor costs from repeated disassembly, inspection, and rework. After assembly in a clean-room environment, every unit-pump assembly undergoes comprehensive testing on a fully automated digital test bench. It is rigorously verified under simulated extreme ultra-high-pressure and high-temperature conditions—covering pre-injection volume, full-load high-flow rates, and fuel-return sealing integrity—to ensure "plug-and-play" readiness upon installation, thereby eliminating the time and costs associated with rework or on-site adjustment.

Large-scale warehousing ensures consistent stock availability and rapid shipping. Recognizing that specialized engineering dump trucks and heavy-duty mining machinery are high-utilization assets, we address the significant financial losses caused by downtime resulting from fuel system component wear. Our warehouse maintains ample safety stock; following order verification, we conduct a final seal inspection and ship within 24–48 hours. This drastically reduces material lead times, helping fleets and end-users quickly restore operations and avoid losses due to equipment inactivity.

Vacuum-hardened special alloy mating parts and wear-resistant coatings. We address the harsh operating conditions—such as low diesel lubricity and high levels of fine contaminants found in some field construction environments—that often cause premature uneven wear or seizure in plunger assemblies. Critical internal moving parts utilize high-hardenability special alloy tool steel, combined with deep vacuum hardening and anti-wear, corrosion-resistant composite coatings. This significantly enhances fatigue life and erosion resistance, ensuring stable performance during continuous operation under extreme, full-load conditions and reducing the extra maintenance costs associated with frequent downtime. </Product Advantages>

<Specifications Table>

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<Application Scenarios>
Heavy-duty crawler excavators and mining earthworks: Excavators equipped with this electronic unit pump system operate continuously in mining and earthmoving sites, enduring harsh conditions such as heavy dust, intense vibration, and prolonged full-load excavation operations. When the powertrain exhibits sluggish cold starts, severe idle vibration, or a lack of responsiveness under load, the maintenance team replaces the unit with this complete electronically controlled unit pump assembly. The precise, high-pressure fuel spray rapidly restores the engine's rated peak torque output, ensuring the mining or excavation project proceeds efficiently and on schedule.

Heavy-duty asphalt compaction and high-pressure concrete pumping operations: Specialized engineering vehicles operate across multiple shifts at high-load sites, keeping engines under constant, heavy-load output for extended periods. When the power system shows signs of RPM drops, sluggish power response, or abnormal spikes in fuel consumption during pressurized operations, on-site maintenance personnel promptly install this high-spec unit pump assembly. Its stable, powerful high-pressure injection ensures smooth, robust operation under load, effectively guaranteeing both engineering quality and construction schedules.
</Application Scenarios>