Rocket Engines - B6-4 Engine Bulk Pack (24)


Can only be shipped via Standard shipping. If you ordered other items on the same order, these may be shipped separately.

Quantity: Only 4 left in stock.




Skill Level:Beginner

The B6-4 is a medium impulse engine that delivers high altitude flights.

It works great for launching larger, heavier rockets, too. Estes engine bulk packs are convenient and include everything your students need to prepare their rockets for launching.  Suitable for Ages 10 & Up. Adult supervision for 12 & Under.

Estes model rocket engine bulk packs are available in four total impulse ranges: A (mini engine), A, B or C (standard engines). These packs may be used for the rocket bulk packs or other Estes rockets. Whether you are launching rockets at school with students, at a youth group activity or rocket club monthly launch, Estes engine bulk packs are a must.

Engine bulk packs come with all the rocket engine supplies you need to launch 24 rockets. Included are 24 rocket engines, 30 model rocket starters, 24 reusable starter plugs and 75 squares of recovery wadding. Use the A8-3 engine to launch these bulk pack rockets: Alpha, Alpha III, Generic E2X, Wizard, and Viking.

Use the B6-4 engine to launch these bulk pack rockets: Generic E2X, Alpha III, Wizard, Viking and Alpha.


  • Extra value bulk package gives access to multiple users
  • 24 B6-4 single stage regular rocket engines
  • 30 model rocket igniters
  • 24 igniter plugs
  • 75 4-1/2" (11.4cm) squares of recovery wadding
  • Detailed instructions

INCLUDES: One Bulk Pack of 24 B6-4 Single Stage Model Rocket Engines


  • Rockets and Launch Rod for Use
  • Installation of Rocket Igniters and Plugs


  • Height: 2-3/4" (7cm)
  • Circumference: 3/4" (1.8cm)

Used with permission, copyright 2016 Estes-Cox Corp./Tower Hobbies, Inc. Copyright 2016 Brey Corp. t/a Hobby Works.

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