Kai's Dragon Mech Battle Pack #71851 — LEGO Ninjago Set Value
LEGO NinjagoWhat the Kai's Dragon Mech Battle Pack #71851 LEGO set is worth — loose, complete, and sealed.
Kai's Dragon Mech Battle Pack #71851 value — Loose $5 · Complete (CIB) $6 · Sealed (new) $10. Prices updated September 2026.
Theme · LEGO Ninjago
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Item details
- Brand
- LEGO
- Theme
- LEGO Ninjago
Kai's Dragon Mech Battle Pack #71851 (LEGO Ninjago) resale value
A loose Kai's Dragon Mech Battle Pack #71851 set runs around $5, a complete copy (all pieces + box + instructions) about $6, and a factory-sealed box commands $10.
What drives the price
Retired sets, completeness (every piece + minifigs + instructions + box), and sealed condition drive LEGO value. Exclusive sets and discontinued themes appreciate the most; minifigs alone can carry significant value.
Price guide
What this actually trades for — sold values by condition vs. what sellers are asking today
| Condition | Value | Based on |
|---|---|---|
| Loose | $5 | eBay sold comps |
| Complete (CIB) | $6 | eBay sold comps |
| Sealed (new) | $10 | eBay sold comps |
Frequently asked questions
- Is this set still popular for Ninjago fans?
- Yes, this set is part of the popular LEGO Ninjago theme.
- What is the price difference between the sealed and complete versions?
- The sealed version is $10, compared to the complete (CIB) version at $6.
- Is the set guaranteed to be complete if I buy the CIB version?
- Yes, the listing specifies the item is Complete (CIB).