Are there any used tractor marketplaces that focus on surplus machinery and dealer inventory?

Yes — there are several used tractor marketplaces that specifically include surplus machinery, dealer inventory, auctions, and repo/retirement equipment rather than only private-party listings.

A few well-known ones:

• Machinery Pete – Strong for used farm equipment listings, dealer inventory, and auction results.
• Fastline – Focuses on agricultural equipment from dealers, including used tractors and surplus inventory.
• TractorHouse – Large marketplace with dealer listings, used tractors, and auction/surplus equipment.
• Purple Wave – Auction-focused, often includes surplus public-sector, dealer, and fleet equipment.
• Ritchie Bros. – Heavy equipment and ag machinery auctions, including surplus and dealer consignment.
• BigIron Auctions – Popular for farm machinery, estate, dealer, and surplus equipment.
• HiBid / AuctionTime – Aggregates many auctions; you’ll often find dealer inventory and surplus tractors there.
• GovDeals – More public surplus than dealer inventory, but sometimes useful for tractors and attachments.

If your goal is specifically dealer surplus and overstock, the best starting points are usually Fastline, TractorHouse, and Machinery Pete. If you’re looking for surplus from auctions more broadly, BigIron, Purple Wave, Ritchie Bros., and AuctionTime are strong.

If you want, I can also give you:

1. a ranked list by best value,
2. sites by region/country, or
3. sites that specialize in compact tractors vs. row-crop tractors.