Collection: 275/40ZR18 Tires

275/40ZR18 tires are 275 mm wide, a sidewall 40% as tall as the width, on an 18-inch wheel — roughly 26.7 in tall and 10.8 in wide overall. It is a performance size.

We carry 275/40ZR18 in ultra-high performance, performance and summer designs from Kumho.

Available ratings in this size: load index 103 (1,929 lb per tire); speed rating Y (up to 186 mph). Choose a load index and speed rating equal to or higher than what your vehicle's tire placard calls for.

275/40ZR18 is also written 275/40/18, 275 40 18, 2754018, 275/40-18.

Every tire is priced each and ships free to the lower 48 states (FedEx Ground, or truck freight for large commercial, farm and construction sizes), with 30-day returns on unmounted tires.

Common questions

Which vehicles use 275/40ZR18 tires?

Any vehicle whose factory tire placard (driver's door jamb) or current tires read 275/40ZR18. The placard also gives the load index and speed rating to match. Not sure? Send us your year, make and model and we'll confirm the size.

Can I replace 275/40ZR18 with a different size?

Stay with the placard size unless a tire professional confirms an alternative — a different size changes speedometer accuracy, load capacity and clearance.

How many do I need?

Prices are per tire. Replace in pairs on the same axle, or all four for even handling and wear.

Guides: how to read a tire size · load index chart · speed rating chart · load range & ply · tire types explained · all tire sizes