Saito FA-125A AAC 4-Stroke Engine w/Muffler

  • Saito FA-125A AAC 4-Stroke Engine w/Muffler
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Model: SAIE125A

This is the Saito FA-125A 4-Stroke Model Airplane Engine with Muffler.  This weighs a full 10 ounces less than the older Saito 120 engine, but it still has even more power!  This is what you need if you want serious aerobatic performance out of your .90-size aerobatic plane.  When you fire up this 4-stroke, the awesome sound will surely turn heads!  This engine has a 3-year warranty.


  • Less weight but more thrust
  • 10 ounces lighter than the FA-120
  • Turns an APC 16x6 at 9,000 rpm


Only Saito could put 1.25 cubic inches of power into a 1.00 size case. Not only is the FA-125 lighter and more powerful than the FA-120 it replaces, its unique size allows modelers to apply its awesome power to a wide variety of airplane sizes. It will work with anything from .90 size sport aerobats all the way up to 1.20 size sport and IMAC planes.

As with most Saito engines, the FA-125A is available in a stunning Golden Knight version with a gloss black finish and gold plated valve covers.  With 10 fewer ounces and .05 more cubic inches than the FA-120 it replaces, the FA-125A gives new meaning to the term escape velocity. Just bolt one to the nose of your next .90-size aerobatic plane and youll see what we mean!


Type: 4-Stroke
Displacement: 1.25 cu in (20.52 cc)
Bore: 1.24 in (31.7 mm)
Stroke: 1.02 in (26.0 mm)
Cylinders: Single AAC
Total Weight: 24.69 oz (700 grams)
Engine (Only) Weight: 21.87 oz (620 grams)
Muffler Weight: 2.89 oz (80 grams)
Crankshaft Threads: M8 x 1.25 mm
Benchmark Prop: APC 16X6 @ 9,000 RPM
Prop Range: 15x7 - 17x6
RPM Range: 1,800 - 10,000 RPM
Fuel: 10% - 30% nitro Synthetic mix
Mounting Dimensions: 152 x 60 x 126 mm
Muffler Type: Cast
Cylinder Type: AAC
Carb Type: 2 Needle
Crank Type: Dual Ball Bearing

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