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Size 18-8.50- OTR Grassmaster Tires

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OTR Grassmaster 18X8.50-10 B/4PLY

T8041885010 OTR Grassmaster 18X8.50-10 B/4PLY Tires

Rims Not Included

Lawn and Garden
Lawn&Garden/Golf Cart
See details

easy test score

7.8 Great

4.8

99 reviews

Per Tire:

$29.22

OR

$Loading /mo

Save $

Lightning Savings

Was $36.53

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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10 tires

Please contact customer support. (877) 709-4442

Estimated Delivery

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Total

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OR

$ /mo

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.

OTR Grassmaster 18X8.50-8 A/2PLY

T802188508 OTR Grassmaster 18X8.50-8 A/2PLY Tires

Rims Not Included

Lawn and Garden
Lawn&Garden/Golf Cart
See details

easy test score

7.8 Great

4.8

99 reviews

Per Tire:

$23.06

OR

$Loading /mo

Save $

Lightning Savings

Was $28.83

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.

1 tire
2 tires
3 tires
4 tires
5 tires
6 tires
7 tires
8 tires
9 tires
10 tires

Please contact customer support. (877) 709-4442

Estimated Delivery

Loading

Shipping

Loading

Total

Loading

OR

$ /mo

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.

OTR Grassmaster 18X8.50-8 B/4PLY

T804188508 OTR Grassmaster 18X8.50-8 B/4PLY Tires

Rims Not Included

Lawn and Garden
Lawn&Garden/Golf Cart
See details

easy test score

7.8 Great

4.8

99 reviews

Per Tire:

$25.05

OR

$Loading /mo

Save $

Lightning Savings

Was $31.31

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.

1 tire
2 tires
3 tires
4 tires
5 tires
6 tires
7 tires
8 tires
9 tires
10 tires

Please contact customer support. (877) 709-4442

Estimated Delivery

Loading

Shipping

Loading

Total

Loading

OR

$ /mo

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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OTR - 350 Mag (1)
OTR - Chevron II (1)
OTR - Chevron (1)
OTR - Garden Master (1)
OTR - GC (1)
OTR - Grassmaster (3)
OTR - HBR Lawn Trac (2)
OTR - Rib (1)

5 (3)

(3)

B/4PLY (2)
A/2PLY (1)

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
Traction

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 34K+ 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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