Diaphragm Pump Zenoah K261881260 for G450PU/G620PU (no packing)  [K261881260]

Spare diaphragm pump for model engine servicing

The Zenoah K261881260 diaphragm pump fits Zenoah G450PU and G620PU model engines and serves as a replacement element in the fuel delivery system. This item is supplied without additional retail packing.

It is intended for resolving fuel feed problems, replacing a worn diaphragm, or restoring reliable priming. The component uses a nylon diaphragm material and is specified for model-scale engine upkeep rather than application in full size machinery.

Fitment tips: empty fuel and vent tanks before removal, ensure the pump's mounting pattern and hose connections match your engine, and inspect O rings and sealing faces for cleanliness before assembly. After refit, confirm there are no leaks at idle and under gentle throttle increments.

Maintenance note: while the pump does not change carburetion settings, consistent fuel delivery helps keep throttle response even. Regular checks for softening, cracking, or foreign matter will extend the service interval and prevent intermittent running issues.