Parts/Engines & fuel/Engine accessories/O.S. Engine Mount (140RX/FS120/120AX/FS200S)
O.S. Engine Mount (140RX/FS120/120AX/FS200S)
O.S.

O.S. Engine Mount (140RX/FS120/120AX/FS200S)

Part # OSM71904200
Where to buy
$105.99
AMain Hobbies
Seen Oct 12, 2026
$105.99Buy
Prices are as last seen at the store; stock is not tracked.

About this part

This is an O.S. Engine Mount. This mount has been drilled and tapped to fit the O.S. FS-120 (4-stoke), FS-120 Surpass (4-stroke), 1.40RX (2-stroke). Package includes all hardware required to mounting the engine to the mount, as well as to a firewall. Nose gear hole has not been pre-drilled.

Specifications:
Type of Mount: Beam style mount with a square shaped back
Length: 90mm (3-1/2")
Width: 54mm (2-1/8")
Height: 54mm (2-1/8")
Firewall Mount screws: M5x25 caphead (coarse)
Engine Mount screws: M5x20 caphead (coarse)

Includes:

  • (4) Engine mounting screws (for mounting the engine to the mount)
  • (4) Lock washers (for the engine mounting screws)
  • (4) Blind nuts (they fit into the firewall)
  • (4) Motor mount screws (for secruring the mount to the firewall)
  • (1) L-wrench for the screws 

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