0445110170 Fuel Injector Nozzle A6120700387 Injector Assembly for Mercedes Dodge Sprinter

This high-pressure common-rail diesel fuel injector assembly (Part ID: 0445110170 / 0 445 110 170; common OE cross-references include 0986435089, 55182630, 55196027, 93177378, 93184168, etc.) is precision-engineered. Designed for the Z13DT / Z13DTJ / D13A series 1.3L CDTI / JTD diesel engine platforms, it is widely used in passenger cars, compact MPVs, and urban delivery vans such as the Agila A 1.3 CDTI, Corsa C/D 1.3 CDTI, Combo 1.3 CDTI, Meriva A 1.3 CDTI, and Doblo / Panda / Punto 1.3 D. As a core actuator within the fuel supply system responsible for controlling diesel atomization quality and pulse injection timing, it precisely meters high-pressure diesel and rapidly disperses it into ultra-fine particles in response to millisecond-level electrical signals, thereby facilitating thorough mixing and combustion with the intake air.

The component is designed and manufactured to standards emphasizing "micro-level fit precision" and "millisecond-level rapid response." The core control valve spool and needle valve assembly are crafted from selected aerospace-grade, hardened special alloy steel, featuring ultra-high-precision geometric grinding and low-friction polishing. The surface is finished with a dense, ultra-hard coating that effectively prevents internal scratching and pressure loss caused by impurities in the diesel fuel. After installation, drivers and mechanics will notice immediate improvements: crisp, clean cold starts and whisper-quiet, vibration-free idling. Whether climbing steep hills, stop-and-go driving, or cruising long distances, the throttle response is sharp and precise, delivering smooth, robust acceleration. Additionally, it reduces black smoke emissions, ensuring excellent fuel efficiency and a stable, comfortable driving experience.

Standardized smart manufacturing and quality control from the source factory. We eliminate issues common with intermediary distribution—such as excessive assembly tolerances, uneven cylinder fuel delivery, and high-pressure leakage risks—while effectively lowering procurement costs. By utilizing a standardized production base with end-to-end quality control and removing unnecessary markups, we ensure consistent fuel injection pressure and flow across all cylinders. This reduces maintenance budgets while providing reliable, robust power for vehicle and equipment operations.

Rigorous testing on ultra-high-pressure digital dynamic test benches. We address common problems found in low-quality replacements—such as response lag, pressure-loss-induced sticking (causing engine misfires and vibration), and the wasted time and money associated with repeated installation and tuning. Every injection component undergoes automated testing before leaving the factory. Flow rates and sealing integrity are precisely calibrated across various pressure ranges in environments simulating real-world high-temperature, ultra-high-pressure conditions. This ensures "ready-to-install" performance, drastically saving time and costs on installation and adjustment.

Large-scale warehousing and rapid shipping response. Recognizing that daily commuter and commercial transport vehicles are high-utilization assets, we aim to prevent the costly downtime and revenue loss caused by fuel system failures. Our warehouse maintains ample stock year-round; orders are packed and shipped within 24–48 hours of confirmation. This significantly shortens logistics wait times, helping fleets and owners get back on the road quickly and avoid losses due to vehicle downtime.

Specialized quenched alloy needle valves and wear-resistant hardened coatings. Designed to combat issues where poor diesel lubricity or high sulfur content leads to premature component wear and valve core sticking. Key components are crafted from high-hardness specialty bearing steel and feature a surface anti-corrosion treatment, significantly enhancing fatigue and wear resistance; they maintain stable performance even under harsh conditions and prolonged high-load operation, thereby reducing the additional costs associated with frequent disassembly and repair.

Specifications

Application Scenarios

Small vans and inter-city express delivery: Small vans powered by 1.3L diesel engines frequently navigate urban arterial roads and narrow streets, often encountering stop-and-go traffic and the need to accelerate from a standstill while fully loaded. Technicians replace this injector when drivers experience sluggish acceleration, a lack of power on inclines, or a noticeable increase in fuel consumption. After installation, fuel delivery is smooth, acceleration is responsive and precise, and fuel economy is improved.

Diesel passenger cars and family MPVs used for daily commuting: These vehicles often carry passengers for get off work commutes or long-distance travel, demanding high standards for quiet idling and smooth operation. When issues such as sluggish cold starts, severe idling vibration, or excessive exhaust emissions arise, the maintenance team can promptly install a complete set of electronically controlled fuel injection components. Precise fuel atomization restores smooth engine operation, ensuring a comfortable and punctual journey.

Q: Can the product be used immediately after installation, or is it necessary to input a correction code?

A: Each fuel injector is assigned a unique flow correction code (IMA/QR code) during factory testing. We recommend using a diagnostic tool to program this code into the engine control unit (ECU) after installation to achieve optimal fuel efficiency and smooth operation.

Q: What are the stock levels and lead times for bulk orders?

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

Q: How are product quality and performance ensured before shipment?

A: All fuel injectors undergo assembly in a Class 100 cleanroom environment and 100% bench testing across all operating conditions. Tests cover critical metrics such as sealing integrity, pre-injection volume, full-load injection volume, and fuel return volume; our rigorous standards ensure that every unit shipped is of premium quality.

Q: What is the warranty period, and how is after-sales support handled?

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 to ensure a worry-free experience.