Nitto NT421Q 235/65R-18

  • Part Number: 210730
  • Service Description: 110 H
  • UTQG: 640AA
  • Sidewall: BW
  • Load Range: XL
  • Treadlife Warranty: 75000 miles
  • Type: Passenger
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Nitto NT421Q 235/65R18

Vehicles have evolved throughout the years (from sedans, to SUVs, and now the crossover utility vehicle), but have your tires done the same? The NT421Q is Nitto™s premier all-season tire built specifically for your crossovers (CUV) and SUVs. From style to function, the NT421Q has been created with the foremost purpose of getting you safely to your destination throughout the seasons. The unique and stylish asymmetric tread design provides quiet and comfortable ride while delivering all-season traction. Backed by a class-leading mileage warranty (75,000-mile for H, V speed rated sizes, and 60,000-mile for W speed rated sizes), you can be confident in replacing your original factory equipped tire with the NT421Q.

Features & Benefits

Tire Specifications

NT421Q 235/65R18

Size UTQG Max. Load Inflation Pressure Tread Depth Tire Weight Rim Width Range Sect. Width Tread Width Overall Diam
235/65R-18 640AA 2,337 lbs 50 psi 12/32nds 36 lbs 6.5-(7.0)-8.5" 10" N/A 30"

Purchase includes the Nitto NT421Q tire only. The wheel rim shown in the picture is not included. Picture provided is a stock picture from the manufacturer and may or may not reflect the actual product being ordered.

All Nitto NT421Q tires are continuously developing with manufactured improvements. With that said, Simple Tire and the manufacturers have the right to change these tire specifications at any time without notice or obligation.

If you have any questions, please email us at [email protected]

Please Note: Specifications of the Nitto NT421Q tires shown above are listed to be as accurate as possible based on the information provided to us by Nitto tires.

Available Sizes & Prices

NT421Q 235/65R18

Size Serv. Desc. UTQG Sidewall Part Number Price Qty
P215/50R18 92V BW NTZ3978100 $539.68 set of 4 $134.92 View Details
225/55R19 103V 640AA BW 210950 $800.04 set of 4 $200.01 View Details
225/55R18 102V 640AA BW 210670 $604.48 set of 4 $151.12 View Details
P225/55R19 99V BW NTZ3979100 $667.68 set of 4 $166.92 View Details
225/60R17 103V 640AA BW 210610 $515.56 set of 4 $128.89 View Details
P225/60R18 104V BW NTZ3978500 $527.68 set of 4 $131.92 View Details
225/65R17 106H 640AA BW 210640 $551.12 set of 4 $137.78 View Details
235/50R19 103V 640AA BW 210760 $822.24 set of 4 $205.56 View Details
P235/50R18 97V BW NTZ3978200 $603.68 set of 4 $150.92 View Details
235/55R20 105W 560AA BW 210890 $862.24 set of 4 $215.56 View Details
235/55R19 105W 560AA BW 210790 $813.36 set of 4 $203.34 View Details
235/55R18 104V 640AA BW 210680 $648.92 set of 4 $162.23 View Details
P235/55R19 105W BW NTZ3979200 $703.68 set of 4 $175.92 View Details
P235/55R18 104V BW NTZ3978300 $631.68 set of 4 $157.92 View Details
235/60R17 106H 640AA BW 210620 $555.56 set of 4 $138.89 View Details
235/60R18 107W 560AA BW 210700 $613.36 set of 4 $153.34 View Details
P235/60R18 107W BW NTZ3978600 $611.68 set of 4 $152.92 View Details
235/65R17 108H 640AA BW 210650 $568.92 set of 4 $142.23 View Details
235/65R18 110H 640AA BW 210730 $626.68 set of 4 $156.67 View Details
245/50R20 105V 640AA BW 210860 $755.56 set of 4 $188.89 View Details
245/55R19 107H 640AA BW 210800 $746.68 set of 4 $186.67 View Details
245/60R18 109H 640AA BW 210710 $640.04 set of 4 $160.01 View Details
245/65R17 111H 640AA BW 210660 $600.04 set of 4 $150.01 View Details
255/45R20 105W 560AA BW 210840 $760.04 set of 4 $190.01 View Details
255/50R19 107V 640AA BW 210770 $795.56 set of 4 $198.89 View Details
255/50R20 109V 640AA BW 210870 $813.36 set of 4 $203.34 View Details
P255/50R19 107W BW NTZ3978900 $723.68 set of 4 $180.92 View Details
255/55R19 111V 640AA BW 210810 $857.8 set of 4 $214.45 View Details
255/55R20 110H 640AA BW 210900 $795.56 set of 4 $198.89 View Details
255/55R18 109V 640AA BW 210690 $715.56 set of 4 $178.89 View Details
P255/55R18 109W BW NTZ3978400 $671.68 set of 4 $167.92 View Details
255/60R19 113H 640AA BW 210820 $813.36 set of 4 $203.34 View Details
255/60R17 110V 640AA BW 210630 $622.24 set of 4 $155.56 View Details
255/65R18 115H 640AA BW 210740 $728.92 set of 4 $182.23 View Details
265/50R19 110V 640AA BW 210780 $960.04 set of 4 $240.01 View Details
265/50R20 111V 640AA BW 210880 $755.56 set of 4 $188.89 View Details
265/60R18 114V 640AA BW 210720 $662.24 set of 4 $165.56 View Details
265/65R18 114H 640AA BW 210750 $684.48 set of 4 $171.12 View Details
275/40R20 106W 560AA BW 210830 $857.8 set of 4 $214.45 View Details
P275/40R20 106W BW NTZ3979400 $879.68 set of 4 $219.92 View Details
275/45R20 110W 560AA BW 210850 $751.12 set of 4 $187.78 View Details
P275/45R19 108W BW NTZ3978800 $775.68 set of 4 $193.92 View Details
275/55R20 117V 640AA BW 210910 $782.24 set of 4 $195.56 View Details
275/55R17 109V 640AA BW 210600 $755.56 set of 4 $188.89 View Details
275/60R20 115H 640AA BW 210920 $817.8 set of 4 $204.45 View Details
285/45R22 114V 640AA BW 210930 $951.12 set of 4 $237.78 View Details

Treadlife Warranty

NT421Q 235/65R18

This product is covered by a 75,000 mile manufacturer’s treadlife warranty.

Merchandise covered by a manufacturer’s warranty is sold with the warranty by the manufacturer extended to the purchaser. We will be happy to assist in obtaining fulfillment of a manufacturer’s warranty. Other than applicable manufacturers’ warranties, there are no warranties, express or implied, including any warranty of merchantability or fitness for a particular purpose.

The only tires SimpleTire can warranty are brand new defects (meaning that they have not been mounted or driven on). Any bead damaged will be void of any warranty claim. Any other adjustments should be taken to the nearest authorized dealer for that manufacturer.

Sometimes the manufacturer also provides a treadlife warranty and mileage rating. Please be aware that not all tires hold a mileage warranty from the manufacturer. Different tire models, even from the same manufacturer, may or may not come with a treadlife warranty.

Customer Service

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Ratings & Reviews

Nitto NT421Q

4.0 1 Reviews
Excellent handling and cornering grip, Comfortable and quiet ride.

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