Write a Review
Milestar
Milestar MIL Weatherguard 255/45R19/4
Milestar MIL Weatherguard 255/45R19/4
📧 Get Fitment Help
Verify parts fit & get product recommendations
Lease-to-own for as low as
/week
Get Started
Guaranteed to Fit — confirm your size with the fitment checker on this page
Price Match Guarantee Learn More
Free Mount & Balance
Free Shipping
OUT OF STOCK 
📧 Get Fitment Help
Verify parts fit & get product recommendations
Looking for a 255/45R19 touring tire? The Milestar Weatherguard is available now at ThreePiece.us with free shipping on every order and Affirm financing at checkout.
What 255/45R19 means
In the size 255/45R19, 255 is the section width in millimeters (10.04 in), 45 is the aspect ratio — the sidewall stands 45% as tall as the tire is wide, or 114.8 mm (4.52 in) — R denotes radial construction, and 19 is the wheel diameter in inches. That works out to an overall diameter of about 28.04 inches, turning roughly 719 revolutions per mile. Overall diameter is what matters for speedometer accuracy and clearance when you change sizes, so compare it — not just the width — against your current tire.
The manufacturer lists the overall diameter of this specific tire as 19 inches — when clearance is tight, go by the published figure rather than the nominal size math.
The service description on this tire decodes to a load index of 104 — a maximum load of 1,984 lbs per tire. The speed symbol V corresponds to a maximum sustained speed of 149 mph.
Specifications
| Size | 255/45R19/4 |
| Tire Type | Touring |
| Service Description | 104V |
| Load Index | 104 |
| Speed Rating | V |
| Load Range | XL |
| Section Width (mm) | 255 |
| Aspect Ratio | 45 |
| Overall Diameter (in) | 19 |
| Tread Depth (/32") | 11 |
| Treadwear | 580 |
| Traction Grade | A |
| Temperature Grade | A |
| UTQG | 580AA |
| Warranty | 70K |
Frequently asked questions
What kind of tire is the Milestar Weatherguard?
The Milestar Weatherguard in 255/45R19 is a touring tire.
What are the treadwear and warranty ratings on the Milestar Weatherguard?
This tire carries a treadwear grade of 580, traction grade A, temperature grade A under UTQG. The manufacturer's warranty is 70K.
What does 104V mean on the Milestar Weatherguard?
104V breaks down as load index 104 — rated for 1,984 lbs per tire — with a V speed rating, good for a maximum sustained 149 mph.
Keep shopping
Shop all 255/45R19 tires, see every Milestar Weatherguard size, or view all tires at ThreePiece.us.
- BRAND:
- Milestar
- Model:
- MIL Weatherguard
- Size:
- 255/45R19/4
- Aspect Ratio:
- 45
- Load Index:
- 104
- Load Range:
- XL
- Section Width:
- 255
- Service Description:
- 104V
- Speed Index:
- V
- Temperature:
- A
- Tire Rim Diameter:
- 19
- Tire Type:
- Touring
- Traction:
- A
- Tread Wear:
- 580
- Tread Depth:
- 11
- UQTG:
- 580AA
- Warranty:
- 70K
PRODUCT REVIEWS (0)
Overall Rankings
Have you tried this product?
WRITE A REVIEWNo reviews for this product yet. Be the first to write a review!
Write a Review