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Milestar SL 177-S
Why Choose the Milestar SL177-S?
Designed for long-haul and regional commercial truck applications.
Built for hardworking fleets and professional drivers who need durable highway steer performance.
Available in popular 11R22.5 and 11R24.5 steer fitments for big rigs and vocational trucks.
Key Features of the Milestar SL177-S
Built for Commercial Highway Performance
Purpose-engineered tread pattern delivers stable handling and predictable braking.
Continuous ribs and solid shoulder blocks help maintain steering precision, even under heavy load.
Keep Rolling in Rain or Shine
Durable tread compounds provide reliable traction in a variety of weather conditions.
Wide circumferential grooves help evacuate water to reduce the risk of hydroplaning.
Stands up to Consistent, Everyday Use
Heavy-duty radial construction with high load ratings supports consistent performance under load typical of long-haul and regional fleet duties.
Reinforced tread and sidewall design help resist road wear, chipping, and irregular tread wear to help extend tire life.
Warranty & Protection Options
Backed by Milestar’s Standard Limited Warranty
Want complete peace of mind? Add our Certificates in your cart:
Free flat repairs
Free replacement if your tire can’t be safely repaired
Coverage down to 3/32”
Frequently Asked Questions
Is the Milestar SL177-S good for commercial trucking?
Yes. It's built for long-haul and regional steering applications with a focus on stability, load capacity, and all-season traction.
What vehicles can use the Milestar SL177-S?
Ideal for commercial trucks, highway tractors, and vocational trucks requiring robust steer tires with heavy load ratings.
What makes it better than other commercial tires?
The Milestar SL177-S delivers durable construction, confident handling, and all-season traction in a rugged package built specifically for commercial highway duty.
Ready to Experience Consistent Commercial Performance?
- Get the Milestar SL177-S, available online and in-store.
- Check fitment and shop now.
- Fast, friendly service from your local tire pros.
- Don’t forget to add Certificates during checkout!
UNIFORM TIRE QUALITY GRADE (UTQG)Uniform Tire Quality Grade
| SECTION WIDTH Measures the width of the tire from sidewall to sidewall, which is mounted on a wheel and inflated. | 11 - 295 |
| ASPECT RATIO Determines the sidewall height of the tire, based on the width. | 0 - 75 |
| RIM DIAMETER Measures the rim size from top to bottom (in inches). | 22.5" - 24.5" |
| OVERALL DIAMETER Measures the tire height from top to bottom when mounted on a wheel and inflated. | 39.9" - 43.3" |
| RIM WIDTH RANGE The approved range of rim widths this tire can be safely mounted on. | 7.5" - 9.0" |
| WEIGHT The weight of the tire measured in pounds (weight of tire only). | 114.0 LBS - 125.0 LBS |
| TREAD DEPTH Measured in /32 of an inch to determine the height of the tread block from top to bottom. | 18/32" |
| LOAD INDEX Determines the weight a tire can carry at maximum air pressure. See load Index chart. | 144 - 149 |
| LOAD RANGE Determines the ply rating of the tire. Should be replaced with the same or higher rating. | G4 - H1 |
| MAX PSI The max psi is the highest pressure the tire can hold, but should be inflated to your vehicle specifications not exceeding this amount. | 105 PSI - 120 PSI |
| SPEED RATING Designation from laboratory testing to determine the maximum speed the tire can travel. Maintain the same speed rating or higher for replacement. | L - Up to 75 mph |
| SIDEWALL DESC. The sidewall designation to describe the lettering on the sidewall. | Black Side Wall |
| VPN Vendor Product Number | 21000028 - 21000050 |