About TireSizeHQ

Built by Someone Who Actually Ran a Parts Department

TireSizeHQ was built by Garry Ricci, who spent 17 years running dealership parts and fixed operations departments — most of it focused on GM, with hands-on cross-brand experience across Mopar, Subaru, Kia, Renault, and UD Diesel as well.

During that time, Garry built and ran a dealership parts e-commerce operation that generated over $10 million in tracked online sales — real transactions, real customers, years of Google Ads, Bing Ads, and Google Analytics data on exactly how people search for parts and fitment information online. That operational history is what TireSizeHQ is actually built on: not guesswork about what drivers need, but years of watching real search behavior turn into real purchases.

That work was recognized industry-wide. Garry was named RevolutionParts' Parts Department of the Year, was featured in a RevolutionParts case study on eCommerce parts strategy, and recorded a webinar on building a high-performing parts department — all publicly available and linked below.

Why TireSizeHQ Exists

Most tire websites fall into one of two categories: big retailers who know their own inventory but aren't built for comparison shopping, or comparison sites that never actually ask what vehicle you drive. Both leave you doing the same annoying thing — squinting at a sidewall or a door-jamb sticker, trying to decode a string of numbers before you can even start shopping.

TireSizeHQ closes that gap. Tell it your year, make, model, and trim, and it tells you the exact factory tire size — then shows you where to compare prices. No decoding required.

Where the Data Comes From

Every fitment record on this site comes from a licensed automotive database (Teoalida), covering vehicles from 1950 through the current model year. It's not scraped, not guessed, and not crowdsourced — it's the same kind of structured fitment data that dealership parts departments rely on.

That said, tire fitment can vary by factors a lookup tool can't always see — mid-year running changes, dealer-installed options, prior modifications. Always confirm your final tire size against your vehicle's door placard before purchasing — the sticker on the driver's side doorjamb is the manufacturer's own final word on your specific vehicle.

Real Credentials, Not Just Claims

Questions or Corrections

Spotted a fitment that looks wrong, or have a question about your vehicle? Contact us — corrections and feedback directly improve the accuracy of this tool for everyone who uses it after you.