Nitto 235/55R18 XL NT421Q

In stock
SKU
WP-NITTO-N210680
$241.11
All-Season Passenger SUV/CUV tire.
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Brand Nitto
Size 235/55R18
Width 235
Ratio 55
Rim 18
Type -
Tire Category -
Speed Rating V
Load Capacity 1984
Load Range XL
Load Rating 104
Sidewall BSW
UTQG 640 A A
Treadlife Warranty 75000

If you're looking for a tire that blends stability, traction, and real-world usability, the Nitto 235/55R18 XL NT421Q 235/55R18 delivers. This - tire is engineered to support confident driving for - applications.

Quick Specs (Varies by Size)

  • Size: 235/55R18 (235 width / 55 aspect ratio / 18 rim)
  • Type: - for -
  • Load: 104 (up to 1984 lbs per tire)
  • Load Range: XL
  • Speed Rating: V
  • Sidewall: BSW
  • UTQG: 640 A A

What the Size 235/55R18 Means

Tire size plays a major role in how your vehicle rides, handles, and carries weight. The 235/55R18 designation refers to the tire's width, sidewall profile, and wheel diameter (18 inches). Matching your current size helps preserve ride quality and handling characteristics, while size changes may affect clearance, gearing, and load capacity.

Real-World Performance

The Nitto 235/55R18 XL NT421Q focuses on dependable traction and durability. Its construction supports consistent contact with the road surface, helping reduce uneven wear while maintaining predictable handling in both dry and wet conditions.

Fitment Guidance

The easiest way to confirm that 235/55R18 is correct is to look at the tires currently on your vehicle and read the size directly from the sidewall. Also make sure the load index (104) and speed rating (V) meet or exceed what you're running now. If you're unsure, we're happy to help you confirm fitment before ordering.

Care Tips to Maximize Tire Life

  • Maintain proper air pressure: Check monthly to support even wear and handling.
  • Rotate tires regularly: Helps extend tread life and improve consistency.
  • Balance on installation: Reduces vibration and uneven wear.
  • Address alignment issues early: Misalignment can shorten tire life quickly.

Why Buy This Tire From Dan the Tire Man

We make it easy to get the Nitto 235/55R18 XL NT421Q 235/55R18 with Free Shipping and knowledgeable support if you need it. Flexible payment options are also available to help you get the tires you need without delay.

FAQ

Is the Nitto 235/55R18 XL NT421Q right for my vehicle?
Fitment depends on size, load requirements, and clearance. Confirm 235/55R18, 104, and V against your current tires to ensure compatibility.

Will this tire work year-round?
Many - tires are suitable for year-round driving, but severe winter conditions may call for a dedicated winter tire or a 3PMSF-rated option.

Need help choosing?
Call or text us at 207-316-2258 and we'll help you confirm fitment and select the best tire for how and where you drive.

Tire Benefits

  • Visually show how tires are wearing to alert driver to wear issues before they become big problems
  • Provide traction without sacrificing handling
  • Adds an additional layer of strength to help navigate potholes and other adverse road conditions
  • Provide tread block stability to help safely navigate corners
  • Improve water evacuation, providing increased wet handling and traction
  • For wet and winter weather performance
  • For confidence in all weather conditions, even in light snow

Tire Features

  • Intelligent Maintenance Indicators
  • Nitto's evolutionary 3D multiwave and 3D Interlocking sipe design
  • Circumferential rubber shoulder inserts
  • Larger tread blocks on the exterior of the tire
  • Three wide and deep circumferential grooves
  • Inside tread area design with large open grooves and high sipe density
  • Combination of all season rubber compound, advanced siping technologies and water evacuating circumferential grooves
  • 75,000 Mile Limited Treadwear Warranty (H/V-Rated)
  • 60,000 Mile Limited Treadwear Warranty (W-Rated)
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