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How to Safely Replace a Cummins HPCR Fuel Pump: Expert Tips

For Cummins diesel engine owners and technicians, a failing HPCR (High Pressure Common Rail) fuel pump can cause serious performance issues—from loss of power and rough idling to increased fuel consumption. Replacing it yourself is a challenging but rewarding task that can save significant time and cost. This detailed, beginner-friendly guide walks you through the …