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Size --18 Firestone Construction Tires

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Firestone Radial Duraforce RT 340/80R18 143B

375975 Firestone Radial Duraforce RT 340/80R18 143B Tires

Rims Not Included

Construction
Construction - R-4

easy test score

9.8 Superb

Per Tire:

$478.45

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$Loading /mo

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Was $598.06

Strikethrough Pricing on Giga Tires

Our percentage-off promotions, discounts, or sale markdowns are customarily based on our own opinion of the value of this product, which is not intended to reflect a former price at which this product has sold in the recent past. This amount represents our opinion of the full retail value of this product today, based on our own assessment after considering a number of factors.

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Please contact customer support. (877) 709-4442

Firestone Duraforce Utility R-4 405/70R18 153A2

003997 Firestone Duraforce Utility R-4 405/70R18 153A2 Tires

Rims Not Included

Industrial
Construction - R-4

easy test score

9.8 Superb

Per Tire:

$824.85

OR

$Loading /mo

Save $

Lightning Savings

Was $1031.06

Strikethrough Pricing on Giga Tires

Our percentage-off promotions, discounts, or sale markdowns are customarily based on our own opinion of the value of this product, which is not intended to reflect a former price at which this product has sold in the recent past. This amount represents our opinion of the full retail value of this product today, based on our own assessment after considering a number of factors.

Estimated Delivery

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Shipping

Total

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OR

$ /mo

1 tire
2 tires
3 tires
4 tires
5 tires
6 tires
7 tires
8 tires
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Please contact customer support. (877) 709-4442

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Compare tires at a glance using our easy test score^® system. Our proprietary algorithm factors in performance, expert insights, user reviews, and Uniform Tire Quality Grading (UTQG) scores.

Four criteria factor into easy test score^®

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Research based on customer reviews and buying behavior
Treadwear

The lifespan of a tire based on wear performance
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The ability of a tire to grip to the road in wet conditions
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At Giga Tires, we’ve delivered unbeatable tire prices and service since 2014. With over 1 million tires sold, a #9 ranking in Newsweek’s America’s Best Online Shops for 2026, and 37K+ 5-star ratings, we offer over 45K+ products along with great promotions, discounts, and rebates. Enjoy fast shipping to your home or a local installer like PepBoys, Monro, and TireChoice. Backed by a 45-day return policy, we make tire buying simple, reliable, and affordable. Headquartered in California, we proudly serve drivers across the continental US.

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