Back Plate Assembly YSF4128A for YS Engine DZ140 and DZ160  [YSF4128A]

YS ENGINE BACK PLATE ASSEMBLY DZ140 DZ160 #F4128A
Price:
AUD$38.92
Brand:
YS Engine
Model:
YSF4128A
GTIN:
4560105739435
Condition:
Brand New
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Back plate details and service notes

The YS Engine YSF4128A back plate assembly serves as an RC-scale replacement part for DZ140 and DZ160 engines. It provides the rear crankcase interface that secures the case closure and aligns components mounted at the rear during servicing or full engine rebuilds.

This part is intended for use in model engine maintenance and tuning. When replacing the back plate, inspect the mating surfaces for damage, check gasket condition, and verify that fastener threads are clean to ensure reliable sealing and alignment. It supports standard teardown and reassembly workflows common to nitro engine service.

Fitment covers the DZ140 and DZ160 designations named above. Before fitting, confirm your engine model and check the locating features against the original plate to avoid incorrect installation. The component is supplied as a direct spare to restore original fit and function and integrates with existing YS Engine mounting and sealing arrangements for these units.

Specifications

  • Item: YS ENGINE BACK PLATE ASSEMBLY
  • Model Number: YSF4128A
  • Material: Not specified
  • Compatibility: DZ140, DZ160

Install this back plate assembly when servicing DZ140 or DZ160 engines to reestablish correct rear case alignment and sealing; always verify part compatibility and follow recognised rebuild steps.

How should I prepare the engine before fitting YSF4128A?

Disassemble to the necessary extent, clean mating surfaces thoroughly, and remove old gasket residue so the new back plate seats properly.

Does replacing the back plate affect engine tuning?

Replacing a warped or damaged back plate can restore correct case volume and alignment, which helps maintain consistent tuning and prevents seal-related leaks.

Is any machining normally required during fitment?

The item is intended as a direct spare. If mounting points differ, a machining check is needed, but typical installations do not require modifications.

Are replacement gaskets recommended when installing this plate?

Yes; replace gaskets or seals when installing the back plate to ensure a reliable seal, since the package does not specify included seals.

What torque approach should I use when tightening bolts?

Tighten fasteners progressively and evenly, following factory torque specs where available, to prevent case distortion and preserve alignment.

Where can I confirm the part number before buying?

Check the model number YSF4128A against your engine manual or the original part marking and visually compare bolt patterns and locating features for confirmation.

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