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AMP
AMP Terrain Pro A/T LT325/65R18
AMP Terrain Pro A/T LT325/65R18
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Looking for a 325/65R18 all terrain tire? The AMP Terrain Pro A/T is available now at ThreePiece.us with free shipping on every order and Affirm financing at checkout.
What 325/65R18 means
In the size 325/65R18, 325 is the section width in millimeters (12.80 in), 65 is the aspect ratio — the sidewall stands 65% as tall as the tire is wide, or 211.2 mm (8.32 in) — R denotes radial construction, and 18 is the wheel diameter in inches. That works out to an overall diameter of about 34.63 inches, turning roughly 582 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 service description on this tire decodes to a load index of 127 — a maximum load of 3,858 lbs per tire, or 124 (3,527 lbs) per tire when mounted as duals. The speed symbol R corresponds to a maximum sustained speed of 106 mph.
Load Range E corresponds to a 10-ply rating.
Specifications
| Size | LT325/65R18 |
| Tire Type | All Terrain |
| Service Description | 127/124R |
| Load Index | 127/124 |
| Speed Rating | R |
| Load Range | E |
| Section Width (mm) | 325 |
| Aspect Ratio | 65 |
| Overall Diameter (in) | 34.61 |
| Tread Depth (/32") | 15.75 |
| Traction Grade | A |
| Warranty | 60K |
Frequently asked questions
What kind of tire is the AMP Terrain Pro A/T?
The AMP Terrain Pro A/T in 325/65R18 is a all terrain tire.
What warranty does the AMP Terrain Pro A/T carry?
The manufacturer's warranty on this tire is 60K.
What does 127/124R mean on the AMP Terrain Pro A/T?
127/124R breaks down as load index 127 — rated for 3,858 lbs per tire (124, or 3,527 lbs, in dual fitment) — with an R speed rating, good for a maximum sustained 106 mph.
Keep shopping
See every AMP Terrain Pro A/T size, explore all terrain tires, or view all tires at ThreePiece.us.
- BRAND:
- AMP
- Model:
- Terrain Pro A/T
- Size:
- LT325/65R18
- Aspect Ratio:
- 65
- Load Index:
- 127/124
- Load Range:
- E
- Section Width:
- 325
- Service Description:
- 127/124R
- Speed Index:
- R
- Inflation Pressure:
- 65 PSI
- Tire Rim Diameter:
- 34.61
- Tire Type:
- All Terrain
- Traction:
- A
- Tread Wear:
- N/A
- Tread Depth:
- 15.75
- Tread Construction:
- 2P+2S+1N
- Warranty:
- 60K
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