255/40R18 tires
The size 255/40R18 means a tire 255 mm wide, with a sidewall 40% as tall as it is wide (about 102 mm), built for 18-inch wheels. Its overall diameter is about 661 mm (26.0 in). We have 13 255/40R18 tires in stock from 38 models, starting at $238.00 per tire.
13 tires in stock in 255/40R18
$238.00Only 1 left
$249.00In stock
$255.00In stock
$260.00In stock
$292.00Only 1 left
$303.00Only 2 left- $336.00In stock
$341.00Only 1 left
$391.00In stock
$393.00In stock
$426.00In stock
$480.00Only 2 left
$509.00In stock
31 more models currently out of stock
- Antares Grip 20
- Bridgestone Potenza RE980AS Plus
- Firestone Firehawk Indy 500
- Bridgestone Potenza Sport A/S
- Nitto Motivo
- Bridgestone Blizzak LM005
- Continental ExtremeContact DWS06 PLUS
- Michelin Pilot Sport A/S 4
- Pirelli Ice Zero Asimmetrico
- Pirelli Cinturato WeatherActive
- BFGoodrich g-Force COMP-2 A/S PLUS
- BFGoodrich g-Force Phenom T/A
- Continental ProContact GX
- Continental ContiProContact
- Bridgestone Turanza EL400-02
- Bridgestone DriveGuard Plus
- Continental ContiWinterContact TS 830 P
- Continental ContiWinterContact TS 830 P
- Continental ContiWinterContact TS 830 P
- Bridgestone Turanza T005
- Falken Azenis RT660
- Continental ContiWinterContact TS 860 S
- Continental WinterContact TS 860 S
- Bridgestone Turanza T005
- Continental ContiSportContact 3
- Continental PremiumContact 6
- Bridgestone Turanza T005 MOE
- Bridgestone Potenza S001
- Bridgestone Potenza RE-71RS
- Michelin Pilot Sport 4 S
- Bridgestone Potenza S001
Vehicles that use 255/40R18
- BMW Z4 2019–2024
- Toyota Supra 2021–2024
- Mercedes-Benz C63 2017–2021
- BMW M4 2015–2020
- Mercedes-Benz CLS550 2007–2018
- Mercedes-Benz SL550 2007–2018
- BMW M3 2015–2018
- Mercedes-Benz CLS400 2016–2017
- Mercedes-Benz SL450 2017
- Mercedes-Benz SL400 2016
- Audi S6 2007–2011
- Mercedes-Benz E63 2010–2011
- Mercedes-Benz SL600 2004–2010
- Mercedes-Benz SL55 2003–2007
- Ferrari 575M 2002–2006
- Mercedes-Benz SL500 2004–2006
- Mercedes-Benz CLS500 2006
- Mercedes-Benz CLS55 2006
- Jaguar XJR 1998–2003
- Jaguar XJ 2002–2003
- Audi RS6 2003
- Mercedes-Benz SL 500 2003
- Ferrari 550 1997–2001
Original-equipment fitments from our vehicle database. Confirm the size on your door placard before ordering.
Sizes close to 255/40R18
- 225/45R18 660 mm
- 335/30R18 658 mm
- 295/35R18 664 mm
- 285/35R18 657 mm
- 245/40R18 653 mm
- 235/45R18 669 mm
- 265/40R18 669 mm
- 215/45R18 651 mm
Within 3% overall diameter on the same rim. Only change size with a professional’s advice; load index and clearance must still match.
Questions about the 255/40R18
What does the tire size 255/40R18 mean?
The size 255/40R18 means a tire 255 mm wide, with a sidewall 40% as tall as it is wide (about 102 mm), built for 18-inch wheels.
What is the cheapest 255/40R18 tire in stock?
Right now the lowest-priced 255/40R18 tire in stock is the Kumho Ecsta PA51 at $238.00 per tire. We have 13 255/40R18 tires in stock in total.
Can I use a different size instead of 255/40R18?
Only with professional advice. A replacement size must keep the overall diameter within about 3%, fit your wheel and suspension, and meet or exceed your vehicle’s load index and speed rating.