This is a 4-pack of BT-50 Centering Rings for use with an A/B/C Engine Tube (sfr811000). This item is fully Estes compatible.
4 BT-50 Centering Rings for an A/B/C Engine Tube.
Perfect for making engine mounts
August 20, 2017
Makes two engine mounts that fit in BT-50 tubes. Very nice quality.
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