Find compatible diameter, width, offset, bolt pattern and center bore for your exact car.
Search directly or browse the catalog.
Connect vehicles with compatible wheel specifications - and wheels with matching vehicles. Build a vehicle picker, filter your stock and support complete front/rear setups using one API.
For wheel retailers, B2B platforms and integration teams.
{
"native_pcds": [
"5x112"
],
"native_cb_front": "66.5",
"native_cb_rear": "66.5",
"grouped": [
{
"size": "17",
"pcd": "5x112",
"native_cb": "66.5",
"et_range": "20–40",
"width_range": "7–8",
"ring_cbs": [
"72.6",
"73.1",
"74.1"
],
"count": 21,
"wdetail": [
{
"width": "7.5",
"et_range": "20–40",
"donors": 29,
"is_gold": true
},
{
"width": "7",
"et_range": "25–35",
"donors": 4,
"is_gold": false
},
{
"width": "8",
"et_range": "20–38",
"donors": 4,
"is_gold": false
}
],
"gold": {
"width": "7.5",
"et": "40",
"dc": 8
}
}
]
}Response excerpt from the current catalog. Exact generation and year range matter.
View this vehicle’s fitments →Choose the level of API capacity and support your workflow needs. Monthly API access and implementation work are quoted separately.
A straightforward way to add vehicle compatibility to your store.
Monthly access · agreed quote
Discuss Start ↗More capacity and closer support for an active online store.
Monthly access · agreed quote
Discuss Business ↗A fitment workflow shaped around your catalog and business processes.
Individual proposal
Discuss your integration ↗Load makes and models, obtain wheel specifications and match them with your own stock. Customers can start with their car instead of guessing technical filters.
Explore the store workflow →Use PCD, diameter, width, ET and DIA when enriching supplier data or building compatibility filters. Your inventory and prices stay in your system.
Explore B2B integration →Start with a wheel’s parameters and find matching vehicles, including paired front/rear filters for staggered and mixed-diameter setups.
Try wheel-to-car search →Manual corrections affect the public finder and the API together, so your integration uses the same effective fitment rules.
Try the vehicle finder →Diameter groups, width-specific ET ranges, bolt patterns, axle-specific hub bores and complete staggered pairs.
Search with required PCD and diameter, then narrow by width, offset and bore. Front and rear parameters can be supplied separately.
Company API keys, shared request quotas, IP allowances and usage monitoring. Keep the key on your backend.
Share your website, catalog workflow and expected request volume.
We review relevant catalog entries, quotas, IP allowance and commercial terms before issuing access.
Build the vehicle selector, map API results to your stock and test representative vehicles and wheel setups.
No. FitmentCore provides wheel fitment data. Your product availability, prices and orders remain in your own catalog, ERP or commerce platform.
The API returns JSON over HTTPS and can be called from your backend. The integration approach depends on your platform and stock data; discuss your setup with us.
Coverage depends on the current catalog and configured vehicle variants. Ask us to review the makes, generations and year ranges important to your business before integration.
A match applies the catalog’s parameter rules. Brake clearance, wheel design, suspension modifications and other physical factors may require separate verification.
Commercial terms and request quotas are agreed for your company. Submit your use case and expected volume; the form does not start a subscription or take payment.
Tell us what your customers need to find. We will review the integration with you.
Request API access ↗