Monorail Transport Base #6991 worth
Answered from real closed-sale prices · updated July 18, 2026
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The Monorail Transport Base #6991 is valued at $551.42 used according to the catalog data. Since the second item, LEGO Monorail Transport Base (6991-1) (Unitron), is unpriced in the results, I cannot provide a specific value for it. For the most current buying or selling decisions, you can compare the sold value against the live asking prices shown for item [1] 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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