Fuel Injection Pump

The Bosch R986437303 is a new diesel fuel injection pump specifically designed as a replacement for CP3 common rail systems. This pump plays a critical role in the diesel engine's fuel system by drawing fuel from the tank, pressurizing it to high levels, and delivering it to the injectors with precise timing and quantity. This ensures optimal combustion, efficiency, and power output. The pump also meters fuel to match engine speed and load, preventing issues like excessive smoke or power loss. This Bosch fuel injection pump is compatible with a range of Chevrolet and GMC vehicles equipped with the 6.6L LB7 diesel engine. Fitment includes Chevrolet Silverado 2500 HD (2001-2004), Chevrolet Silverado 3500 (2001-2004), GMC Sierra 2500 HD (2001-2004), GMC Sierra 3500 (2001-2004), Chevrolet Kodiak 4500/5500 (2003-2005), and GMC TopKick 4500/5500 (2003-2005). Signs of a failing fuel injector pump can include hard starting, loss of power, stalling, poor fuel efficiency, excessive exhaust smoke, fuel leaks, strange engine noises, erratic idle, or the illumination of the check engine light.