Replacement cartridge for the BorgWarner EFR-9174 turbocharger with cast iron bearing housing. BorgWarner EFR-9174 Turbo Cartridge - 12747100009 Original BorgWarner EFR Cast Iron Cartridge Only CHRA without Turbine and Compressor Housing Notice: This is the cast iron bearing housing version! Original BorgWarner EFR Cartridges are a low-cost way to rebuild an EFR Turbo. In the past you always have to buy a new Super Core, which included a new compressor housing. But normaly only the bearings or a turbine / compressor wheel is damaged. Now we offer you as official BorgWarner Performance Distributor exclusive EFR cartridges (CHRA). Notice: When ordering only an EFR CHRA, be sure to check if your compressor and turbine housing has no damages, like scratches or cracks inside. Only when your compressor and turbine housing is in good condition, then a new cartridge make sense. Otherwise you need a Super Core or a complete new turbo! The mounting kits for the turbine and compressor housing, the EFR CRV, solenoid, vacuum hoses, actuators, as well as the exhaust gas and compressor housing itself is always required. If the turbine housing has a wastegate flap, you also need an internal wastegate actuator and a suitable holding plate. Horsepower range: 600 - 1000PS Compressor wheel Inducer: 101,6mm, Exducer: 63,5mm Turbine wheel Exducer: 74mm Compressor housing : None Turbine housing : None BorgWarner EFR Turbocharger was developed and built with only one goal in mind: To dominate on the road, race track and the 1/4 mile. BorgWarner EFR turbocharger features the latest high-tech features, unbeatable performance and top quality. EFR turbos are available in 8 different sizes and 7 different turbine housings, the power ranges from 250-1000HP. The combination of high-efficiency compressor wheel, gamma titanium aluminideturbine wheel combined with ceramic ball bearing technology sets the benchmark for racing turbochargers to the top and represents the highest level in racing sport turbocharging technology: Compressor: - Forged milled compressor wheel - Integrated compressor recirculation valve - Integrated boost control solenoid valve - 360° rotatable by Vband technology - Prepared for speed sensor (optionally available) for recording the speed of the compressor wheel. There you can analyse the compressor efficiency. Cartridge: - Dual ceramic ball bearings - Oil restrictor integrated - Water-cooled Turbine housing: - Stainless steel exhaust gas housing - Gamma Titanium Aluminide Exhaust wheel and shaft, 50% lighter than a comparable Inconelturbine wheel and extremely heat-resistant - High-Flow Wastegate port - Integrated wastegate (also available for the Twinscroll exhaust housings!)