Diesel Plunger Barrel Assembly 1 418 325 895

The Diesel Plunger Barrel Assembly 1 418 325 895 is a precision fuel injection component designed for medium-duty diesel engines, commonly used in agricultural and industrial applications. It features a hardened steel plunger and barrel with a nominal bore diameter of 7.5 mm and a stroke length of 12.2 mm, matching OEM specifications for compatibility with Bosch VE-type pumps. The assembly is manufactured to maintain a clearance tolerance of 0.0015 mm between plunger and barrel, critical for maintaining injection pressure and fuel efficiency.

The plunger and barrel are made from high-carbon chromium steel, typically AISI 52100 or equivalent, and undergo surface hardening to achieve a Rockwell hardness of 60-64 HRC. This material and treatment align with industry standards for wear resistance in high-pressure fuel systems. The surface finish of the barrel is ground to a Ra value of 0.1 micrometers, which is standard for preventing leakage and ensuring consistent fuel metering. No surface coatings such as nitriding or chrome plating are applied by this supplier, as the base material properties are sufficient for the intended operating pressures.

This assembly is primarily purchased by diesel engine rebuilders, agricultural equipment maintenance shops, and spare parts distributors serving Southeast Asia and Africa. Buyers typically order in batches of 10 to 50 units, with packaging in individual anti-corrosion paper sleeves inside cardboard boxes. Lead times are generally 15 to 25 days after order confirmation, and shipments are commonly made under FOB Fuzhou terms. Buyers should confirm compatibility with their engine model before ordering, as similar part numbers may vary in internal dimensions.

Chen Chen Diesel Parts Plant operates from Fuzhou, Fujian Province, and specializes in manufacturing fuel injection components including plunger barrel assemblies, delivery valves, and nozzles. The supplier is listed as an imported tier with harbor trust status, indicating verified export activity and documented shipping history. There is no public information about production volume, workforce size, or years in operation. The listing confirms no certifications such as ISO or IATF are held, and response rates are not tracked on the platform.

The company does not claim OEM authorization or direct partnerships with engine manufacturers. Its product range includes over 50 part numbers for diesel injection systems, all sourced from its own machining facility. Quality control is described as rigorous but not externally audited. Buyers should request physical samples and test reports before placing bulk orders, as no third-party inspection records are provided in the listing.