Turbocharger 8980302170 RHF55 For Isuzu 4HK1 Engine

Turbine shell adopts high-strength nodular cast iron material, with excellent thermal fatigue resistance. It can withstand long-term high exhaust temperature continuous operation, effectively avoid cracking and permanent deformation under frequent load fluctuations of construction machinery and urban medium trucks.

Integrated bypass valve automatically limits boost pressure, prevents overboost damage to engine components, and maintains stable power output under heavy load climbing and full-load transportation conditions.

Aluminum alloy compressor impeller undergoes high-speed dynamic balance calibration, with high air intake efficiency. It significantly increases low-speed intake volume, improves engine low-end torque, and reduces black smoke during acceleration and heavy-load startup.

Double full-floating bearing structure matched with fluorine rubber composite high-temperature oil seals. Greatly reduce oil leakage risk, extend service life under long-term heavy-duty operation, and lower regular maintenance frequency.

All exhaust flange, air inlet/outlet, oil supply and return interfaces are completely consistent with the original RHF55 turbocharger. Direct bolt-on replacement without cutting or modification, perfectly matched with Isuzu 4HK1 engine.