Diesel Injector Nozzle DLLA166S374NP6

The Diesel Injector Nozzle DLLA166S374NP6 is a direct-fit component for high-pressure common rail systems in commercial diesel engines, featuring a six-hole spray design and a nominal orifice size of 0.16mm. It is engineered to match the flow characteristics of original equipment nozzles used in engines from manufacturers such as Cummins and Mercedes-Benz. The nozzle body is machined from high-strength alloy steel with a precision-ground seating surface to ensure consistent fuel atomization under high-pressure conditions.

This nozzle is typically constructed from a nickel-chromium-molybdenum alloy, selected for its resistance to thermal cycling and fuel-induced corrosion. The needle valve is hardened to 60 HRC and features a low-friction coating to reduce sticking under high-frequency actuation. While the supplier does not provide material certifications, the design conforms to standard diesel injector specifications for this model family. The nozzle tip is often finished with a ceramic composite coating to extend service life in low-sulfur fuel environments.

This component is commonly used in fleet maintenance programs for medium-duty trucks and marine auxiliary engines. Buyers typically order in quantities of 5 to 50 units, packaged in individual anti-static bags with labeled inserts. Trade terms are generally FOB Fuzhou Port, with lead times of 18 to 30 days. Buyers should confirm the nozzle’s compatibility with their engine’s fuel pressure and ECU calibration, as variations in spray timing can affect emissions and fuel economy.

Chen Chen Diesel Parts Plant operates from Fuzhou, Fujian Province, and specializes in manufacturing diesel fuel injection components including nozzles, plungers, and delivery valves. The supplier is classified as imported and harbor-trusted, indicating verification of physical address and export activity, though no formal certifications are listed. Their product range includes over 30 distinct nozzle models, suggesting established production capability, but there is no public information on company size, revenue, or client names.

The supplier's listing shows active export history and a focus on diesel injection parts, with consistent part numbering across multiple product lines. There are no claims about ISO certification, laboratory testing, or OEM partnerships. Response metrics are not available, indicating no active communication channel on the platform. Buyers should treat this as a manufacturer with documented production capacity but unverified quality assurance processes, and must validate performance through physical inspection or third-party testing before bulk orders.