B6-4 Engine Bulk Pack

B6-4 Engine Bulk Pack

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.

PLEASE NOTE: This item will ship by US Postal Service only. You MUST HAVE a physical mailbox or post office box for delivery.


Availability: In stock


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Estes model rocket engine bulk packs are available in four total impulse ranges: ½A (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 B6-4 engine to launch these bulk pack rockets: Generic E2X, Alpha III, Wizard, Viking and Alpha.

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2.8 in. (7.1 cm)


18 mm

Estimated Weight

.63 oz. (17.9 g)

2 reviews for B6-4 Engine Bulk Pack

  1. MJA RocketWorks

    I need this!!!

    I use B6-4s all the time! It’s great value for the same amount of engines with some extra stuff! I need to pick this up as soon as possible!

  2. David

    Not just for educators!

    If you read my review of the B6-4 under the motor itself (“The Swiss Army Knife of the Estes Lineup”) you know what a fan I am of this motor. I’m sure once you try it, you’re going to like it for casual park flying of bigger models as well as wringing a little more performance out of your smaller, lighter models. Well, if you like the engine, why not buy it in bulk and save a little money? Not only is the cost per engine cheaper but it also includes wadding which would wind up being a separate purchase if you bought this engine in its 3-pack packaging. C’mon people! You know with the start of the flying season on us you’re going to be buying engines. Why not just buy in bulk and be done with it? I did!

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