8 Curved Rails Gray 4.5v #7851 — LEGO Train Set Value
LEGO TrainWhat the 8 Curved Rails Gray 4.5v #7851 LEGO set is worth — loose, complete, and sealed.
8 Curved Rails Gray 4.5v #7851 value — Loose $3 · Complete (CIB) $12 · Sealed (new) $19. Prices updated August 2026.
Theme · LEGO Train
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Item details
- Brand
- LEGO
- Theme
- LEGO Train
8 Curved Rails Gray 4.5v #7851 (LEGO Train) resale value
A loose 8 Curved Rails Gray 4.5v #7851 set runs around $3, a complete copy (all pieces + box + instructions) about $12, and a factory-sealed box commands $19.
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 | $3 | eBay sold comps |
| Complete (CIB) | $12 | eBay sold comps |
| Sealed (new) | $19 | eBay sold comps |
Frequently asked questions
- What is the best deal for this LEGO Train part?
- The best value depends on your needs; loose parts are the most affordable at $3.
- Can I buy this item in a brand new, sealed condition?
- Yes, the sealed, new version of the 8 Curved Rails Gray 4.5v #7851 is available for $19.
- How much does the complete set cost?
- The Complete (CIB) version of the LEGO Train piece is listed for $13.