Monorail Transport Base #6991 price
Answered from real closed-sale prices · updated July 18, 2026
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The catalog shows the Monorail Transport Base #6991 — LEGO Space Set Value (LEGO Space) has a used sold price of $551.42 [1]. The second item, LEGO Monorail Transport Base (6991-1) (Unitron), is listed but does not have a price in the catalog data provided [2]. For the most current buying or selling information, you can compare these sold values against the live listings shown on your screen.
Live on eBay right now — Monorail Transport Base #6991
LEGO SPACE UNITRON # 6991 MONORAIL TRANSPORT BASE FOUR MINIFIGURES$43.95Buy ↗
LEGO 6991 Space Unitron Monorail Transport Base Not complete w/ instructions$499.99Buy ↗
Lego Monorail Transport Base 6991 Space Unitron Train 100% Complete Set 1994 Toy$3,566Buy ↗
Lego 6991 Monorail Transport Base - Complete with Instructions, Box and Inlay$1,373Buy ↗
Lego Electric System Set 6991 Monorail Transport Base$2,834Buy ↗
Lego set #6991 Rare Vintage Monorail Transport Base 100% Complete w instructions$884.99Buy ↗People also ask
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