Firestone Maxi Traction 420/85R26 143D - 015895

Shop the Firestone Maxi Traction 420/85R26 at ThreePiece.us — free shipping on every order, Affirm financing available, and fast delivery nationwide.

What 420/85R26 means

In the size 420/85R26, 420 is the section width in millimeters (16.54 in), 85 is the aspect ratio — the sidewall stands 85% as tall as the tire is wide, or 357.0 mm (14.06 in) — R denotes radial construction, and 26 is the wheel diameter in inches. That works out to an overall diameter of about 54.11 inches, turning roughly 373 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 54.59 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 143 — a maximum load of 6,008 lbs per tire.

Specifications

Frequently asked questions

How fast does this tire ship?

Every order at ThreePiece.us ships free, with fast delivery from a nationwide warehouse network. Affirm financing is available at checkout.

What does 143D mean on the Firestone Maxi Traction?

143D breaks down as load index 143 — rated for 6,008 lbs per tire.

Will 420/85R26 tires fit my vehicle?

Check the size molded into your current tire's sidewall or the tire placard inside the driver's door jamb — if it reads 420/85R26, this tire matches your vehicle's fitment. If you're changing sizes, compare overall diameter to keep your speedometer and clearances right.

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