Transformer and Speed Regulator #4548 — LEGO Train Set Value
LEGO TrainWhat the Transformer and Speed Regulator #4548 LEGO set is worth — loose, complete, and sealed.
Transformer and Speed Regulator #4548 value — Loose $25 · Complete (CIB) $86 · Sealed (new) $113. Prices updated August 2026.
Theme · LEGO Train
Live on eBay now
↗ Rising · +16%
Complete-in-box price history
Monthly CIB value, based on sold comps.
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Item details
- UPC / EAN
- 0042884048457
- Brand
- LEGO
- Theme
- LEGO Train
- Set number
- #4548
- Release date
- January 1, 1991
Transformer and Speed Regulator #4548 (LEGO Train) resale value
A loose Transformer and Speed Regulator #4548 set runs around $25, a complete copy (all pieces + box + instructions) about $86, and a factory-sealed box commands $113.
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 | $25 | eBay sold comps |
| Complete (CIB) | $86 | eBay sold comps |
| Sealed (new) | $113 | eBay sold comps |
Frequently asked questions
- What is the best deal for buying this LEGO Train piece?
- If you need the piece immediately, the loose version is available for $25.
- How much is the fully sealed, new version?
- The sealed, new version of the Transformer and Speed Regulator #4548 is listed at $144.
- Is the Complete (CIB) condition worth the extra cost?
- The Complete (CIB) condition is priced at $88, offering a good balance between completeness and cost.
