FMS 4258 Prop Adapter

FMS 4258 Prop Adapter
Part # 4258 Prop Adapter
Availability: In Stock
Price: $15.95
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FMS 4258 Prop Adapter FMS 4258 Prop Adapter FMS 4258 Prop Adapter FMS 4258 Prop Adapter


Our  FMS 4258 Propeller Adapters are CNC machined from billet aluminum.  They are designed as a stock replacement to be used on the FMS 4258 brushless outrunner motors.

These prop adapters will allow the use of the original factory spinners on the FMS 4258 motors.

They have an 8mm hex nut machined into the shaft, and a 3mm threaded hole on the tip of the adapter.

Please note that the base thickness is .315" (8mm).  


  1. Attach new propeller adapter to motor utilizing the 4 supplied screws.

Included: 1 - FMS 4258 Prop Adapter, 4 - M3 x 10 Screws, 1 - M8 Hex Nut

Weight: 14.9g

Shaft Diameter:  8mm
Shaft Length: 35.8mm  (1.410")
Thread Length: 17.8mm (.700")
Base Thickness:  8.0mm (.315")
Threaded Tip:  3mm
Overall Length: 43.8mm (1.725")
Bolt Circle: 20mm
Machined Hex Nut: 8mm


- These are designed for propeller hubs with an 8mm hole.
- Motor not included.

Compatible Motors

  • FMS 4258 Brushless motors in various KV ratings

Please contact us with any questions on motor compatibility.

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