F120AC Service Back Plate YSF1326A from YS Engine  [YSF1326A]

Replacement rear plate for F120AC units

This back plate assembly is a maintenance part designed to replace damaged or worn rear crankcase covers on F120AC engines and is identified by the YS Engine reference YSF1326A. The component returns proper sealing surfaces and mounting interfaces without altering engine layout.

The description concentrates on fit and repair use and avoids performance claims. Fit this part when you observe oil escape, compromised threads, or misaligned ports. During installation, confirm that mating surfaces, gasket seating, and bolt threads are all in acceptable condition for a secure assembly.

Installation notes: remove the engine from its mounting where necessary, use original hardware for reference, thoroughly clean mating faces before fitting, and follow usual RC engine service precautions. The product is offered as the back plate assembly alone; internal components and extra consumables are not included unless stated by the supplier.

For restoring an F120AC RC engine to serviceable condition, fit the YSF1326A back plate assembly and inspect sealing and thread integrity to ensure dependable operation.