Store Photo

SHOP for TIRES

By Vehicle
Year
Make
Model
Trim
 Zip Code: GO
By Tire Size
Width
Ratio
Diameter
 Front & Rear are Different Sizes
Zip Code: GO

Nitto NT421Q 255/55R18 Tires

Nitto NT421Q255/55R18 Tire
Nitto tires

Call for Availability
Consumer Tire Performance Survey
star ratingstar ratingstar ratingstar ratingstar
based on 11 customer reviews
review overall8.7 review hydroplaning resistance8.9
review buy again91% review cornering stability8.8
review dry traction9.1 review steering responsiveness8.7
review wet traction8.9 review ride comfort8.5
review light snow traction7.0 review noise level8.2
review deep snow traction7.0 review treadwear8.8
review ice traction6.0 review miles reported14,700
     8-10 = excellent        6-7 = good        4-5 = fair        1-3 = poor
guide to ratings

Mavis Discount Tire offers Nitto NT421Q tires in the size 255/55R18. When replacing all 4 tires, the most popular vehicle was the Porsche Cayenne, followed by the Acura Mdx. 2 different vehicle models in total were fitted with this tire. The average mileage when putting on the new tires was 138,435, and Winter was the most common time of year to purchase.
Browse a list of all Nitto tires
Size Sidewall Speed
Rating		 Service
Desc		 Load
Range		 UTQG
Tread		 UTQG
Traction		 UTQG
Temp
255/55VR18 XL Blackwall V 109V XL 640 A
Nitto NT421Q - All Season On-Road Highway tire
  • Maintenance Indicators
  • Siping
  • Added Shoulder Inserts
  • Tread Block Stability
  • Wet Traction
  • Winter Traction
  • Mileage Warranty
  • Nitto’s intelligent maintenance indicators are a service feature that visually show how your tires are wearing. They can also alert you to wear issues before they become big problems.
  • Siping is one of the most important tire technologies for wet and snow traction. Nitto's revolutionary 3D multiwave and 3D Interlocking sipe design provide traction without sacrificing handling.
  • The circumferential rubber shoulder insert adds an additional layer of strength to help you navigate potholes and other adverse road conditions.
  • The NT421Q helps you safely navigate corners because the larger tread blocks on the exterior of the tire provide stability.
  • The NT421Q is an all-season tire that keeps you safely connected to the road in inclement weather. The three wide and deep circumferential grooves improve water evacuation, providing increased wet handling and traction.
  • The inside tread area of the the tire was designed for wet and winter weather performance. The large, open grooves provide lateral water evacuation while the high sipe density increases the number of biting edges contacting the road.
  • NT421Q is backed by a class-leading mileage warranty which covers 75,000-mile for H, V speed rated sizes, and 60,000-mile for W speed rated sizes.
BACK
card special financing available