Denso 105025-4060 Fuel Injector Nozzle Assembly

Technical specifications for Denso fuel injector nozzle part number 105025-4060, nozzle model DLLA137SM406. This multi-hole nozzle features a 137-degree spray angle and is designed for direct injection diesel engines. The nozzle body is manufactured from high-grade alloy steel with precision-machined orifices to ensure consistent fuel atomization and combustion efficiency. Key construction includes a hardened needle valve assembly matched to the nozzle body for precise flow control. The DLLA137SM406 designation indicates a long-stem nozzle (L), two spring stages (L), angle 137 degrees (137), needle type SM, and flow code 406. Compatible with Zexel part number 9432612794 and Bosch type NP-DLLA137SM406. Applications cover Isuzu 4JB1/4JG2, Toyota 2L/3L, and related Chinese OEM platforms including Qingling, JMC, Dongfeng, and Foton light trucks.