O.S. 25LA .25 Glow Engine w/Muffler

With your purchase, receive at no cost:
BSG Kicker Button

This is the OS Engines 25LA .25 glow engine, with 20H carburetor and included OS E3020 Muffler.


  • More cooling fin area extends the life of the engine, and virtually eliminates engine seizures in the air
  • Added "webbing" on the crankcase strengthens high-stress areas to help ensure that they stand up to the rigors of learning to fly
  • Overall tighter needle valve fit utilizes an "O" ring to help maintain the performance levels you need
  • A fuel inlet that points up allows for easier fuel line access for fueling and defueling


  • Engine: 25LA   
  • Displacement (cu in): 0.2485 (4.0cc)
  • Bore (in): 0.7087 (18mm)
  • Stroke (in): .63 (16mm) 
  • RPM: 2,500-16,000 
  • Output (HP@rpm): 0.6 @ 15,000
  • Weight (oz): 6.9 (197g)
  • Recommended Props: 9x5, 9x6, 10x5

This product was added to our catalog on February 11, 2009.

Super Saver Shipping!

Low Price: $79.98
Out Of Stock
You may back order this item, and you will be notified when it arrives in stock.
This item is eligible for Super Saver Shipping Learn More
This item earns up to 80 VIP Reward Points Learn More

Manufacturer Info

Browse other products from O.S.