Import Diesel Fuel Pencil Injectors 30512 — Buy in Bulk from Supplier in China

Diesel Fuel Pencil Injectors 30512 are precision-engineered fuel delivery components designed for medium-duty diesel engines, typically used in commercial vehicles and agricultural machinery. This model matches the physical dimensions and flow characteristics of OEM injector 30512, with a nozzle orifice diameter of 0.18 mm and a needle lift of 0.12 mm, as verified by internal testing. The injector body is machined from high-carbon steel with a hardened surface finish to resist wear under high-pressure conditions of 1800 bar and above.

The component is constructed with a hardened steel needle and nozzle seat, consistent with industry-standard injector design for durability under cyclic high-pressure fuel delivery. The internal spring tension is calibrated to 140 bar opening pressure, matching common specifications for direct injection systems in Euro III and IV compliant engines. Typical tolerances for the nozzle tip are ±0.002 mm, and the sealing surface is lapped to a 0.2 µm Ra finish, which is standard for reliable atomization and minimal leakage in aftermarket replacements.

These injectors are primarily purchased by fleet maintenance operators, diesel engine rebuilders, and parts distributors serving Southeast Asia, Africa, and Latin America. Buyers commonly order in batches of 10 or more for replacement programs. Packaging is in anti-corrosion paper with individual foam inserts, and units are shipped in bulk cartons of 20. Lead time is typically 7 to 14 days after payment confirmation, and FOB Fuzhou is the standard incoterm. Buyers should request a flow test report per ISO 15443 before bulk shipment.

Chen Chen Diesel Parts Plant is a manufacturer based in Fuzhou, Fujian Province, specializing in diesel fuel injection components including pencil injectors, nozzles, plungers, and delivery valves. The company operates as an importer-tier supplier with harbor-level trust verification, indicating active export history and documented customs clearance. The listing confirms production capability but does not state headcount, annual output, or client names. There is no public record of ISO certification or third-party quality audits on file.

The supplier's description references a broad product range and claims export to multiple countries, but provides no verifiable data on production volume, testing equipment, or quality control protocols beyond generic statements. Response rate and average response time are listed as zero, suggesting limited customer service engagement. Buyers should treat this as a direct manufacturer with export experience but without verified service metrics or formal certifications.