Estes Rockets 1/4A3-3T Engines

Estes Rockets 1/4A3-3T Engines

  • $9.95
Free Shipping on Orders of $135 or more!


  • Launch your next model rocket on Estes Rockets 1/4A3-3T Engines
  • Each package includes 4 engines, 4 starters and 4 starter plugs
  • 1.75 inches x .50 inches and weighs .21 oz
  • Total impulse: .625 N-sec
  • Max thrust: 4.90 Newtons
  • Can only be shipped via USPS Parcel Select Ground. No international shipping is allowed.

Propel your lightweight model rockets into the sky with the Estes Rockets 1/4A3-3T Engines. Sold in a pack of 4 engines, 4 starters and 4 starter plugs. Each engine weighs .21 oz and measures 1.75 inches x .50 inches. Remember, these engines only ship USPS Parcel Select Ground. 

Products Containing Crystalline Silica | CA Prop 65
Boyce Aerospace Hobbies recommends hobbyists under the age of 13 be supervised by an adult at all times. 

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