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  Estes 1504 1/2A3-4T Engines - 4 Pack

  $9.60

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  Estes 1696 E16-4 Rocket Engine - 2 Pack

  $21.67

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  Estes 1616 C6-0 Engines - 3 Pack

  $11.04

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  Estes 1613 C6-3 Engines - 3 Pack

  $11.69

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  Estes 1607 B6-6 Engines - 3 Pack

  $10.19

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  Estes 1606 B6-4 Engines - 3 Pack

  $10.79

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  Estes 1605 B6-2 Engines - 3 Pack

  $10.79

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  Estes 1602 B4-4 Engines - 3 Pack

  $10.79

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  Estes 1601 B4-2 Engines - 3 Pack

  $10.19

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  Estes 1599 A8-5 Engines - 3 Pack

  $10.16

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  Estes 1593 1/2A6-2 Engines - 3 Pack

  $9.60

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  Estes 1568 D12-7 Engines - 2 Pack

  $11.47

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  Estes 1524 C11-7 Engines - 2 Pack

  $8.49

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  Estes 1523 C11-5 Engines - 2 Pack

  $8.49

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  Estes 1522 C11-3 Engines - 2 Pack

  $8.49

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  Estes 1521 C11-0 Engines - 2 Pack

  $8.49

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  Estes 1511 A10-3T Engines - 4 Pack

  $10.16

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  Estes 1510 A10-0T Engines - 4 Pack

  $10.16

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  Estes 1502 1/4A3-3T Engines - 4 Pack

  $9.60

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  Estes 1507 A3-4T Engines - 4 Pack

  $9.60

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  Estes 1598 A8-3 Engines - 3 Pack

  $10.16

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  Estes 1691 E12-0 Engines - 3 Pack

  $20.39

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  Estes 1600 A8-0 Standard Engines - 3 Pack

  $10.16

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  Estes 1608 B6-0 Engines - 3 Pack

  $10.79