Pzero (PZ4)
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Specifications
| Size | 205/40R18 XL Pzero (PZ4-Sport) Run Flat (*) |
|---|---|
| Width | 205 mm |
| Aspect ratio | 40 |
| Rim diameter | R18 |
| Load index | 86 |
| Speed rating | W |
| Load range | XL |
| UTQG | 280 AA A |
|---|---|
| Tread depth | 8/32" |
| Weight | 19.45 lbs |
| Max pressure | 50 psi |
| Severe snow (3PMSF) | No |
| Run-flat | No |
About the Pirelli Pzero (PZ4)
Summer Passenger Car/SUV Sport Performance tire. Chosen as Original Equipment for the most Performance Oriented and Powerful Models on the Market.
Features
* Asymmetric tread pattern* Three wide longitudinal grooves* S-shaped tread design* Three solid central ribs* Pirelli Noise Cancelling System™ (NCS) - select items only* Pirelli Seal Inside™ (S-I) puncture proof technology - select items only
Benefits
* Improves braking performance and enhances handling and control* Faster water expulsion for an improved safety and control in potential aquaplaning situations* Optimal pressure distribution for safety under critical braking conditions, on straight and through corners* Improved braking and traction also at high speed thanks to an increased pattern stiffness with optimized and constant area* Significantly reduces noise inside the vehicle - select items only* Allows you to drive on without losing air pressure even after the tire has been punctured by an external object - select items only
Understanding the 205/40R18 XL size
In the size code 205/40R18, 205 is the section width in millimetres (about 8.1"). 40 is the aspect ratio — the sidewall height is 40% of the width, or roughly 82 mm. R18 means radial construction on a 18-inch wheel, giving an approximate overall diameter of 24.5".
The load index 86 means each tire supports up to 1,168 lbs — about 4,672 lbs across a full set of four. The speed symbol W certifies the tire to 168 mph under its rated load. Always match or exceed the load index and speed rating listed on your vehicle's door-jamb placard.
Tread life and grip ratings
This tire carries a UTQG rating of 280 AA A. The treadwear grade of 280 is a relative durability score — a grade of 200 is expected to last roughly twice as long as a grade of 100 under the same controlled test. Traction grade AA measures straight-line wet stopping grip (AA is highest, then A, B and C). Temperature grade A reflects heat resistance at sustained speed (A is highest).
Price and value
At $213.70 per tire, a full set of four costs $854.80. That is about 14% above the average of the 15 tires we stock in this size, reflecting its position in the range.
Frequently asked questions
What does the tire size 205/40R18 mean?
205 is the section width in millimetres, 40 is the aspect ratio (sidewall height as a percentage of width, about 82 mm), and R18 indicates radial construction for a 18-inch wheel. Overall diameter is approximately 24.5 inches.
What are the load and speed ratings of the Pirelli Pzero (PZ4) 205/40R18 XL?
Its load index of 86 allows up to 1,168 lbs per tire. Its speed rating of W is certified to 168 mph. Check your door-jamb placard and do not fit a tire rated below the vehicle's requirement.
How much does a set of 4 Pirelli Pzero (PZ4) 205/40R18 XL tires cost?
A single tire is $213.70 and a set of four is $854.80.
Does the Pzero (PZ4) come in other sizes?
Yes — we stock 494 additional Pzero (PZ4) sizes besides 205/40R18 XL. Fit only a size approved for your vehicle.