The YS Engine YSF4128A back plate assembly is a scale replacement designed specifically for the DZ140 and DZ160 engine ranges. It forms the rear closure of the crankcase and locates rear-mounted components during disassembly and reassembly of the engine.
This component is intended for model-scale engine servicing and tuning. During replacement, inspect the mating surfaces for wear, check gasket condition, and ensure fastener threads are clean so the assembly seals and aligns correctly. The part supports common teardown and rebuild practices used in nitro engine servicing.
Compatibility is limited to the DZ140 and DZ160 models listed. Prior to fitting, verify your engine model and compare the locating features to the original back plate to avoid incorrect fitment. The item is offered as a direct spare and integrates with the existing YS Engine mounting and sealing configuration for these engines.
Fit this back plate assembly when servicing DZ140 or DZ160 engines to reestablish rear case alignment and sealing; always check part details before installation and follow standard rebuild routines.
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