Air Intake & Fuel Sensors. Chargers & Jump Starters. Door Mirror & Hood Mirror. Exhaust & Emission Parts. Front Grille & Bumper. Oil Pumps & Parts. Best Price and Good Quality. Turbocharge for Caterpillar CAT C12 Detroit Diesel Series 60 12.7L Engine GT4294. Important Please use the above information to determine if the part(s) in this listing fit your vehicle. The most reliable way to make sure the model of turbo is finding the part number from the nameplate of your old turbo. Caterpillar CAT C12 & Detroit Diesel Series 60 12.7L Engine. Turbo Model: GT4294 / K31. Engine: Detroit Series 60 / CAT C12. The turbocharger’s function is to increase the engine’s intake volume and pressure, thereby enhancing engine performance and power output. It improves fuel combustion efficiency, provides more power and torque, and compensates for performance loss at high altitudes. Additionally, a turbocharger can also improve fuel economy. Increase engine power: turbochargers increase engine power and torque by increasing air intake, enhancing acceleration and hill climbing ability. Easy to install, exact fit replacement for the original turbo;Premium ISO/TS 16949 quality. Lower 48 states with physical address. Parts must be in new, re-salable condition. If a part arrives damaged, or is defective, we can help you to take care of it but it must be reported to us immediately. We will reply you within 24 hours on week days. On weekends or holidays, please allow us 48 hours to reply, thanks. / Add to Favourites.