Both belts shredded. Atlas garden tiller model 12 -5100

call them
https://gilsonsnowblowers.com/snowtillers.html

https://www.gprindustrial.com/en/2970-belts-for-gilson-tiller

Try MTD Parts or Jack's Small Engines.

https://www.google.com/search?q=YBSXS+2051+hp+tiller+replacement+belt

..

without a proper model number it is guess work, but either the drive belt has snapped, or if the right wheel drive the left wheel, there may be a half moon key way or a shear pin. General help here, followed by parts suppliers

https://www.google.com/search?q=Troy+bilt+horse+tiller+right+wheel+turns%252C+but+left+wheel+doesn't+turn

Garden Tiller Parts - Troy-Bilt

https://www.troybilt.ca > shop-by-machine-type > garde...
Find the tiller parts, including blades, belts, tines, seals and replacement part kits, that fit your Troy-Bilt outdoor power equipment. When you need garden ...

Troy Bilt Horse Parts Lookup by Model - Jacks Small Engines

https://www.jackssmallengines.com > ... > Tillers
Troy Bilt Horse Exploded View parts lookup by model. Complete exploded views of all the major manufacturers. It is EASY and FREE.
‎Horse i 7hp roto tiller (s/n 1001... · ‎8HP Electric PTO Horse Tiller · ‎2308 Horse III

Garden Tiller and Cultivator Parts ' Troy-Bilt US

https://www.troybilt.com > en_US > garden-tiller-parts
Find the tiller parts, including blades, belts, tines, seals and replacement part kits, that fit your Troy-Bilt outdoor power equipment.
Rating: 4.8 · ‎88 reviews

Troy Bilt Horse Tiller Parts

https://tb.shankslawn.com > troy-bilt-horse-tiller-parts
Troy-Bilt Horse Tiller Part Search. Search the part you're looking for by part number or model below. Troy-Bilt Part Number:.

Question edited for clarity.

This is a virtually unknown make and this is the only place that advertises Haban belts.

Replacement Belts for Haban tiller - GPR Industrial

https://www.gprindustrial.com > Home > Tiller
High Quality Tiller replacement Belt. In stock and ready for shipping. ... 10467 HABAN Power Trac V Belt for Forward. 10467 Tiller Replacement Belt ...

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  10371 HABAN Power Trac V Belt for Reverse - GPR ...

  https://www.gprindustrial.com > belts-for-haban-tiller
  High Quality replacement Belt for HABAN tiller Model: Power Trac V PN: 10371 In stock and ready for shipping.
  

https://www.google.com/search?q=Haban+Model+800+Tiller.+replacement+v-belt

...

Proseries Rotary Tiller Service Repair Manual - Clymer
Search on Google.

I need more information like make, model, kind of motor, size tiller(12inch?), walk behind? but the following links may help you get a manual, http://www.hammerwall.com/Manuals http://www.ssbtractor.com
contact me if you need more help.

Hello, W/D here.
The easiest fix is to take the old belt to an auto parts store and obtain a replacement. All "V" belts are interchangeable. All that's required is the "V" size and belt length, and you'll be fine. Getting "the exact replacement" from Troy-Bilt isn't necessary, and you'll save much by going in this manner.
Best regards, --W/D--

1-800-269-6215 is the number to call to look up older garden way tiller, mtd build most of the tillers but some real old ones were made by bolens here is the link to mtd's parts ordering system and parts look up hope this helps http://www.buymtdonline.com/webapp/wcs/stores/servlet/Home_BuyMTDOnline_10101_19502_-1

I dont know the belt size but if you go to mtd belts in Jackssmallengines.com you should find it. Stephen.