B6-4 Rocket Engines (24)

This is a 24 bulk pack of Estes B6-4 model rocket engines. Includes 24 engines, 30 igniters, and recovery wadding.

Estes B6-4 Rocket Engines (24) Model Rocket Engine Bulk Pack #1783
 Estes Rockets # est1783
Retail $72.98  SAVE 21% !
Estes Rockets Item # est1783
Specifications :
  • Length: 2 3/4"
  • Diameter: 3/4"
  • Estes Product Number: 1783
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Spotlight Review

"enough to start with"
me-n-joey (Tonopah Az)
ordered these along with journey launch set so we could get right to launchin..........

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  • B-Class model rocket engine 24 bulk pack.
  • 6 extra igniters included.
  • Wadding included.
  • Single stage model rocket motor.
  • Detailed instructions.
  • Easy to use.
  • National Association of Rocketry certified.


  • Length: 2 3/4"
  • Diameter: 3/4"
  • Estes Product Number: 1783


  • 24 B6-4 Model Rocket Engines
  • 30 Igniters
  • 24 Plugs
  • Wadding (est302274)

Requirements & Suggestions

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"almost max altitude"
This works well on semi windy days. This makes it so it doesn't go to high and get caught in a cross wind.

"Not the best, but..."
These aren't the best engines but I don't think that's the point. These engines are for those times when you just want to fire rockets. It's not for performance, it's just for firing rockets. These engines are still good, which is nice, but it's the price of $2 per engine that matters.

"Great deal!"
The B6-4 is a great motor- Decent oomph for it's size, and it'll get a small rocket moving at a very affordable price point. In this bulk pack, it not only decreases the cost per motor, but also includes extra ignitors, and the all-important recovery wadding. This is specially treated paper to prevent your parachute or streamer from being burned. Between all of this, you end up saving quite a bit of money!


  • WARNING: Model rocket motors are flammable. Please use caution.
  • Must be 14 to purchase in CA and NJ.
  • Do not burn engines.
  • Soak in water to destroy.

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