Diesel Freight Train Set #7720 value

Answered from real closed-sale prices · updated July 20, 2026

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The Diesel Freight Train Set #7720 is valued at $136 used, with a new price listed at $540. The catalog also shows a related item, the LEGO Diesel Freight Train Set, battery (7720-1), which is currently unpriced in the catalog. For the most current buying options, you can compare the sold values against the live listings shown on your screen.

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LEGO TrainDiesel Freight Train Set #7720$136.38
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LEGO Diesel Freight Train Set, battery (7720-1)
4.5VLEGO Diesel Freight Train Set, battery (7720-1)—
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Live on eBay right now — Diesel Freight Train Set #7720

Lego 7720 Diesel Battery Freight Train 1980 100% Complete & Working, Gently UsedLego 7720 Diesel Battery Freight Train 1980 100% Complete & Working, Gently Used$100Buy ↗LEGO SET 7720 DIESEL FREIGHT TRAIN UNBOXED WITHOUT INSTRUCTIONSLEGO SET 7720 DIESEL FREIGHT TRAIN UNBOXED WITHOUT INSTRUCTIONS$206.03Buy ↗LEGO Trains 7720 Diesel Freight Train Set 99.99% Complete W/Box & Instructions LEGO Trains 7720 Diesel Freight Train Set 99.99% Complete W/Box & Instructions $350Buy ↗Lego 7720 Diesel Battery Freight Train 1980 100% Complete & Working, Gently UsedLego 7720 Diesel Battery Freight Train 1980 100% Complete & Working, Gently Used$295Buy ↗Lego 7720 Diesel Freight Train Set 4.5V 1980 Vintage IncompleteLego 7720 Diesel Freight Train Set 4.5V 1980 Vintage Incomplete$69.99Buy ↗Complete 130-Piece Freight Train Set - EMD GP40 LocomotiveComplete 130-Piece Freight Train Set - EMD GP40 Locomotive$356.24Buy ↗
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