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Pirelli
Pirelli P6 Four Seasons 235/40R18XL 95H - 1621100
Pirelli P6 Four Seasons 235/40R18XL 95H - 1621100
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The Pirelli P6 Four Seasons in 235/40R18 ships free from ThreePiece.us, with Affirm financing available at checkout and fast delivery from a nationwide warehouse network.
What 235/40R18 means
In the size 235/40R18, 235 is the section width in millimeters (9.25 in), 40 is the aspect ratio — the sidewall stands 40% as tall as the tire is wide, or 94.0 mm (3.70 in) — R denotes radial construction, and 18 is the wheel diameter in inches. That works out to an overall diameter of about 25.40 inches, turning roughly 794 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 24.6 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 95 — a maximum load of 1,521 lbs per tire. The speed symbol H corresponds to a maximum sustained speed of 130 mph.
Load Range E corresponds to a 10-ply rating.
Specifications
| Size | 235/40R18XL |
| Tire Type | All Season |
| Service Description | 95H |
| Load Index | 95 |
| Speed Rating | H |
| Load Range | Extra Load |
| Section Width (mm) | 235 |
| Aspect Ratio | 40 |
| Overall Diameter (in) | 24.6 |
| Tread Depth (/32") | 10 |
| Treadwear | 400 |
| Traction Grade | A |
| Temperature Grade | A |
| UTQG | 400AA |
Frequently asked questions
What does 95H mean on the Pirelli P6 Four Seasons?
95H breaks down as load index 95 — rated for 1,521 lbs per tire — with an H speed rating, good for a maximum sustained 130 mph.
What kind of tire is the Pirelli P6 Four Seasons?
The Pirelli P6 Four Seasons in 235/40R18 is a all season tire.
What are the treadwear and warranty ratings on the Pirelli P6 Four Seasons?
This tire carries a treadwear grade of 400, traction grade A, temperature grade A under UTQG.
Keep shopping
Shop all 235/40R18 tires, browse Pirelli tires, see every Pirelli P6 Four Seasons size, or view all tires at ThreePiece.us.
- BRAND:
- Pirelli
- Model:
- P6 Four Seasons
- Size:
- 235/40R18XL
- Aspect Ratio:
- 40
- Load Index:
- 95
- Load Range:
- Extra Load
- Section Width:
- 235
- Service Description:
- 95H
- Speed Index:
- H
- Temperature:
- A
- Tire Rim Diameter:
- 24.6
- Tire Type:
- All Season
- Traction:
- A
- Tread Wear:
- 400
- Tread Depth:
- 10
- UQTG:
- 400AA
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