Product Overview This RHF55 turbocharger is a direct replacement for the Isuzu 4HE1T / 4HE1-T 5.2L diesel engine, widely fitted on Isuzu NPR, NQR, and ELF light trucks. Manufactured strictly to the IATF16949 standard, it features a K18 turbine wheel material, an oil-cooled design, and a built-in wastegate actuator. It delivers stable boost pressure, effectively restoring engine power while reducing smoke emissions and fuel consumption. Suitable for fleet repair, wholesale