DZ70 Compatible Fuel Pump Assembly, Plunger Included - YSG7069 by YS Engine  [YSG7069]

Plunger and pump housing for DZ70 engines

This YS Engine YSG7069 fuel pump body with plunger is an RC-scale replacement part intended for use on DZ70-series nitro engines. It serves as the fuel delivery housing and plunger assembly that routes fuel from the tank to the carburettor on compatible model engines.

Check fitment against your engine's existing pump body before installation; the unit replaces the pump housing and plunger as a single service part. During replacement, confirm sealing surfaces and O-rings are intact and seated correctly to prevent leaks, and verify linkage and fuel lines sit without binding after installation.

For tuning and maintenance the pump body affects fuel flow consistency under varying engine loads; a correctly seated plunger and leak-free body help maintain steady idle and throttle response during track use or bench testing. This is a scale RC accessory and is supplied as a spare part for engine service and repair.

Install this pump assembly to stabilise fuel delivery on DZ70 engines, check seals during the swap, and adjust tuning if fuel response changes at high throttle.