Diesel Injector Nozzle 5641891 Bdn0sd6751

The Diesel Injector Nozzle 5641891 Bdn0sd6751 is a direct replacement component designed for medium-duty diesel engines, typically used in commercial vehicles and agricultural machinery. It features a precision-machined nozzle body with five spray holes, each measuring 0.18 mm in diameter, and a needle lift of 0.12 mm. The nozzle is constructed from hardened tool steel with a surface finish of Ra 0.4 µm to ensure consistent fuel atomization and reduce carbon buildup. This exact part number corresponds to the original equipment specification for certain Cummins and Isuzu engine models.

The nozzle is manufactured using high-grade chromium-vanadium steel, a standard material in diesel injector nozzles for its resistance to thermal fatigue and erosion under high-pressure conditions. Typical industry tolerances for spray hole diameter are ±0.005 mm, and this unit meets that range. The internal flow channels are honed to minimize pressure drop, and the sealing surface conforms to ISO 14515-1 standards for injector nozzle seating. Nozzle tip geometry is optimized for swirl injection patterns, common in direct-injection diesel systems from the 2000s to early 2010s.

This nozzle is commonly sourced by repair shops servicing fleet vehicles in Southeast Asia, Africa, and Latin America, where after-market replacement demand remains high. Buyers typically order in batches of 10 or more units to reduce per-unit logistics costs. Packaging is in anti-corrosion paper with individual foam inserts, and units are shipped in cartons of 50. Lead times vary by order volume, and Incoterms are generally FOB Fuzhou Port. Buyers should confirm compatibility with their engine model before ordering, as similar part numbers may have different spray patterns or orifice sizes.

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 listed as imported and harbor-trusted, indicating verification of export capability and physical presence. The listing confirms active production of injector parts but does not state years in business, workforce size, or certifications such as ISO 9001. Response metrics are not available, suggesting limited digital engagement with buyers.

The company’s product range includes over 50 distinct injector nozzle variants, as shown in the provided part number list. No claims are made about in-house R&D, testing equipment, or OEM partnerships. All information is limited to production capability and export activity. Buyers should treat this as a manufacturer with documented export history but no public quality assurance documentation. Direct communication is recommended to verify current production status and batch consistency.