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Engine Mount Parts (BT-5/BT-20/BT-50)

Estes Engine Mount Parts (BT-5/BT-20/BT-50)

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Our Price: $7.64

The Estes Engine Mount Parts set contains 27 parts to build motor mounts. This set includes:

  • Three BT5 body tubes (2 inches long)
  • Three BT5 yellow engine blocks
  • Three BT5 Mylar engine hook retainer rings
  • Three BT20 body tubes (2.75 inches long)
  • Three BT20 engine blocks
  • Three BT20 Mylar engine hook retainer rings
  • Three BT50 body tubes (4 inches long)
  • Three BT50 yellow engine blocks
  • Three BT50 black engine hook retainer rings

Please note that manufacturers sometimes update their products and packaging. If receiving a specific version of a product is important to you, please contact us before ordering.


  • Model: 3181
  • 11 Units in Stock
  • Manufactured by: Estes

This product was added to our catalog on Sunday June 19, 2016.

Model Rocket Body Tubes

Our model rocket body tubes are thin-walled, white or natural-color, kraft paper tubes coated with glassine. These are the same kinds of cardboard body tubes you find in most model rocket kits.

We offer 18" tubes in standard diameters:

BT-20.255 inches0.281 inches
BT-50.518 inches0.544 inches
BT-200.710 inches0.736 inches
BT-500.950 inches0.976 inches
BT-551.283 inches1.325 inches
BT-601.595 inches1.637 inches
BT-702.175 inches2.217 inches
BT-802.560 inches2.600 inches

A 13mm model rocket motor fits in a BT-5 tube. An 18mm motor fits in a BT-20 tube. A 24mm motor fits in a BT-50 tube.

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