Overview – General Parts FLP-KC 3932503
Engineered for Cummins fuel supply systems as the low-pressure lift pump, the Cummins FLP-KC 3932503 meets the tolerances your equipment was designed around.
Parts Characteristics
A fuel lift pump (FLP) that moves diesel from the tank to the high-pressure pump at low pressure. It maintains a steady supply head so the injection pump never starves, and a weak lift pump shows up first as hard starting and power loss under load.
Applicable Models & Applications
Used on Cummins fuel systems specifying this lift pump. Confirm port sizes, mounting pattern and operating pressure against your engine – lift pumps with the same body can differ in outlet thread and delivery rate.
Maintenance & Replacement
Treat hard starting and a flat spot under load as a lift-pump symptom first. A tired pump delivers enough at idle and falls short the moment the injectors ask for more, and the engine behaves exactly like a fuel-starved one because that is what it is.
Check delivery pressure at the high-pressure pump inlet rather than guessing. A pump that holds pressure cold but sags warm is on its way out, and replacing it before it strands the machine is the cheap option.
Replace the pump together with the primary fuel filter. Fitting a new pump onto a restricted filter repeats the starvation it was meant to cure, and the new pump inherits the same complaint.
Prime the system fully after fitting and watch for weeping at the ports on the first run. A lift pump that starts clean and stays clean is the difference between a ten-minute job and a roadside one.
Price Reference (USD)
Budget roughly USD 40 to USD 120 for a FLP-KC 3932503; volume orders and stock status can move this range either way.
Value & Service
We supply brand-new lift pumps with the port and rate confirmed against your engine, shipped so a fuel-starved engine is back on its feet quickly.
When you need a dependable FLP-KC 3932503 for your Cummins General Parts, Racer Machinery keeps the right units in stock and ships worldwide so your machine is back to work without delay.
