Wheel Fitment API — Supported regions
Wheel-Size.com maintains frequently updated fitment data across 14 global automotive regions. A region is the market in which a vehicle was officially sold — wheel specifications are verified per region, so the same model may carry different OEM fitments depending on the market.
Pass multiple region values to /makes/, /models/, /generations/, /years/. /search/by_model/ accepts a single region per call.
The 14 regions and their countries
USA+ USDM
US, Anguilla, Antigua and Barbuda, Bahamas, Barbados, Bermuda, Cayman Islands, Cuba, Dominica, Dominican Republic, Grenada, Guadeloupe, Haiti, Jamaica, Martinique, Montserrat, Puerto Rico, Saint Barthélemy, Saint Kitts and Nevis, Saint Lucia, Saint Martin (French part), Saint Vincent and the Grenadines, Sint Maarten (Dutch part), Turks and Caicos Islands, Virgin Islands (British), Virgin Islands (U.S.)
Canada CDM
Canada
Mexico MXNDM
Mexico
Central & South America LADM
Argentina, Aruba, Belize, Bolivia, Bonaire/Sint Eustatius/Saba, Brazil, Chile, Colombia, Costa Rica, Curaçao, Ecuador, El Salvador, Falkland Islands [Malvinas], French Guiana, French Polynesia, Guatemala, Guyana, Honduras, Nicaragua, Panama, Paraguay, Peru, Suriname, Trinidad and Tobago, Uruguay, Venezuela
Europe EUDM
Albania, Austria, Belgium, Bosnia and Herzegovina, Bulgaria, Croatia, Cyprus, Czechia, Denmark, Estonia, Finland, France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania, Luxembourg, Moldova, Monaco, Montenegro, Netherlands, North Macedonia, Norway, Poland, Portugal, Romania, San Marino, Serbia, Slovakia, Slovenia, Spain, Sweden, Switzerland, Turkey, United Kingdom
Russia+ RUS
Russia, Armenia, Azerbaijan, Belarus, Georgia, Kazakhstan, Kyrgyzstan, Tajikistan, Turkmenistan, Ukraine, Uzbekistan
Japan JDM
Japan
China CHDM
China, Hong Kong, Macao
South Korea SKDM
South Korea
Southeast Asia SAM
Afghanistan, Bangladesh, Bhutan, Brunei, Cambodia, India, Indonesia, Laos, Malaysia, Maldives, Myanmar, Nepal, Pakistan, Philippines, Singapore, Sri Lanka, Taiwan, Thailand, Timor-Leste, Vietnam
Middle East MEDM
Bahrain, Iran, Iraq, Israel, Jordan, Kuwait, Lebanon, Oman, Palestine (State of), Qatar, Saudi Arabia, Syria, United Arab Emirates, Yemen
North Africa NADM
Algeria, Chad, Egypt, Eritrea, Guinea-Bissau, Libya, Mali, Mauritania, Morocco, Niger, Senegal, Sudan, Tunisia, Western Sahara
South Africa SADM
Angola, Botswana, Eswatini, Lesotho, Madagascar, Malawi, Mozambique, Namibia, South Africa, Zambia, Zimbabwe
Oceania AUDM
Micronesia (Federated States of), Guam, American Samoa, Fiji, Palau, United States Minor Outlying Islands, Northern Mariana Islands, Marshall Islands, Kiribati, Nauru, Cocos (Keeling) Islands, Australia, New Caledonia, Papua New Guinea, Solomon Islands, Vanuatu, Christmas Island, Heard Island and McDonald Islands, Norfolk Island, New Zealand, Cook Islands, Niue, French Polynesia, Pitcairn, Tokelau, Tonga, Tuvalu, Wallis and Futuna, Samoa
API method reference
GET · Returns all global regions with a list of related countries
https://api.wheel-size.com/v2/regions/?user_key=YOUR-API-KEY
The endpoint is part of the Cataloging API method set — it is cacheable and safe to mirror into your own database for autocomplete and filtering. See the SEO / data-parsing policy for caching guidance.
Why regions, not markets
API v1 organised fitment data around manufacturer markets. API v2 replaces that concept with global automotive regions — the market in which a vehicle was officially sold. Wheel specifications, OEM fitments, trim levels and bolt patterns are all verified per region, so regional filtering returns genuinely regionally-correct results rather than a best-effort mapping from the original market taxonomy.