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Hi-Run
Hi-Run SU03 ST 18.5X8.50-8 C (6 Ply) 8x7 4 x 4 White Solid
Hi-Run SU03 ST 18.5X8.50-8 C (6 Ply) 8x7 4 x 4 White Solid
Hi-Run SU03 ST 18.5X8.50-8 C (6 Ply) 8x7 4 x 4 White Solid
Hi-Run SU03 ST 18.5X8.50-8 C (6 Ply) 8x7 4 x 4 White Solid
Hi-Run SU03 ST 18.5X8.50-8 C (6 Ply) 8x7 4 x 4 White Solid
Hi-Run SU03 ST 18.5X8.50-8 C (6 Ply) 8x7 4 x 4 White Solid

Hi-Run SU03 Tire and Wheel Assembly18.5X8.50-8 • All Season • Highway

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Assembly listings contain tires with rims for sale. The listed price is for both the tire and the rim. The actual bolt pattern of the rim may differ from the one in the photos, please check the Item Specifications for the actual rim type.

Hi-Run SU03

FEATURES AND BENEFITS

  • All season traction
  • Enhanced controllability
  • Upgraded load durability
  • Longer lasting tread life

OVERVIEW

The Hi-Run SU03 is a highway terrain, all season tire manufactured for trailers. This tire is NOT MEANT TO BE MOUNTED ON LIGHT TRUCKS, as its construction will not support the weight and performing style of such vehicles. It can ONLY BE MOUNTED ON TRAILERS.

All season traction is promoted with this model. The tire utilizes its symmetric ribbed tread design and the all season compound. These upgrade the grip on the road surface in dry, wet, and winter conditions. The tread design greatly boosts the surface grip with extra biting edges, while the compound keeps the rubber flexibility in versatile temperatures. The zigzag groove pattern allows the tire to disperse water and slush from the footprint, resulting in a safer wet weather performance.

The tread design and the low tire profile ensure the surface contact at all times. This combination allows the tire to greatly improve the steering responsiveness and the driving stability. They ensure a close and consistent traction, which allows the tire to improve the steering response time and accuracy to the towing vehicle's instructions. It also allows the tire to greatly improve the structural stability under the driving pressure. As a result, the tire is able to significantly enhance the towing safety and experience.

The model utilizes its reinforced internal structure to boost the load capacity. The bias ply structure keeps the ideal tire shape under the load and driving pressure, enabling the tire to significantly enhance the durability. Bias tires are known for their load handling ability, as the bias structure maintains the ideal tire shape at all times. This enables the tire to significantly increase the load durability.

The Hi-Run SU03 boosts the length of the usability. The durable compound and the ideal tread design provide a longer tread life. They prevent premature and irregular wear formations across the tread area. On the other hand, the self-cleaning tread design enables the tire to prevent damage to the casing. Rocks are ejected from the footprint, avoiding stone retention from harming the casing. The model prevents damage and elongates the service life.

This specific tire model features a BIASED ply construction.

Manufacturers recommend changing tires every 10 years. As long as tires are properly stored before they are sold, the year of their manufacture will not shorten their service life.

Tire Specifications

Check out specifications of the tire.

18.5X8.50-8
8.50
N/A
8 inches
18.5 inches
N/A
BrandHi-Run
Highway
Run flatNo
ModelSU03
SKUNA1741127-99
Approved rim widthNot specified
N/A
Sidewall styleBSW: Black Side Wall
N/A
C (6 Ply)
N/A
All Season
Vehicle typeTrailer
Road Hazard WarrantyNo
Treadlife warrantyNot specified
MPNASB1028

FAQs

All tires sold on our site are brand new. We do not sell used, retreaded, or reconditioned tires.

All warranties are provided by the tire manufacturers. Priority Tire only offers a 90-day return policy for unused and unmounted tires.

Yes. All payments are processed over a secure, encrypted connection, and we never store your full credit card details on our servers.

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Shipping & Returns

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Shipping
  • Fast & Free Shipping in the 48 contiguous states
  • Same-day dispatch if ordered by 1 PM EST on business days
  • Delivery in 1–6 business days, depending on your location
  • Shipped from PA, TX, FL & other U.S. warehouses.
Returns
  • 90-Day Returns on unmounted, unused tires
  • Return shipping is the customer’s responsibility

Tires may ship separately and arrive on different days, even when ordered together.

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Benefit from our nationwide network of over 25,000 certified local installers, making it easier than ever to have your new tires delivered and professionally mounted close to home.

Our two decades of specialized knowledge ensure every customer receives professional guidance and high-quality products they can trust.

With over 8 million satisfied customers across the nation, we’ve built a legacy of trust by delivering premium tires and exceptional service to drivers just like you.

Explore a massive inventory of over 20 million tires from top-tier brands, ensuring that no matter your vehicle or driving needs, we have the perfect set in stock and ready to ship.

Benefit from our nationwide network of over 25,000 certified local installers, making it easier than ever to have your new tires delivered and professionally mounted close to home.

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