Import Diesel Injection Delivery Valve — Buy in Bulk from Supplier in China

The diesel injection delivery valve is a precision check valve that controls the release of high-pressure fuel from the injection pump to the injector nozzle, ensuring sharp cutoff and preventing dribble. Based on the listing, it is designed for compatibility with Lutong, Zexel, and Hino/Isuzu fuel pump systems used in models such as M. Bishihi, Nag 3AD1, SD16, and E3AB1. It operates under pressures exceeding 1,500 bar and must respond within milliseconds to maintain combustion efficiency.

The valve body is typically forged from high-strength steel, such as AISI 4140 or equivalent, with a hardened seat and a spring-loaded ball or conical sealing element. Standard seat angles are 30 to 45 degrees, and the valve stem diameter is typically 4.0 mm to 6.0 mm. Surface treatments such as chrome plating or nitriding are common to resist erosion from high-velocity fuel flow. The valve spring preload is calibrated to ensure rapid closure after fuel delivery.

This component is primarily purchased by diesel engine repair shops, fleet maintenance operators, and OEM parts distributors serving commercial vehicles and agricultural machinery. Buyers typically order in batches of 100 to 1,000 units. Packaging is usually in blister packs or plastic trays inside cartons. Trade terms are commonly FOB or CIF, with payment via T/T or L/C. Lead time and exact packaging details are not confirmed in the listing and must be verified directly.

China Lutong Parts Plant is an imported-tier supplier based in Dufeng Village, Hanjiang District, Putian, China, with no public information on company history, workforce size, or revenue. The supplier’s trust tier is listed as harbor, indicating basic verification through port-based trade channels. There is no public record of certifications, response rate, or average reply time, suggesting limited buyer interaction or digital engagement.

The supplier specializes in diesel injection components, as evidenced by the product listing, but provides no details on production capacity, testing facilities, or client base. It does not claim OEM partnerships, certifications, or export volume. Buyers should treat this as a factory-level source without verified quality systems and confirm all technical specifications directly before placing orders.