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Buick Grand National tire size

Original tire sizes for the Buick Grand National, model years 1984, 1985, 1986 and 1987. Trim levels and wheel packages change the size within the same year, so confirm on the door-jamb sticker before ordering.

Front and rear Same size One size fits all four corners on the fitments we list.
Wheel sizes 15" Every fitment we list uses this diameter.
Tire sizes listed 1 One size per model year across the years we cover.

Check before you order. The surest answer is the tires on the car right now: the size is molded into the sidewall. The placard inside the driver's door tells you what the factory fitted. Our guide on reading a tire size shows exactly where to look.

Buick Grand National
Shown: 1987 Buick Grand National. Photo: Greg Gjerdingen from Willmar, USA, CC BY 2.0, via Wikimedia Commons

Size by year and trim

Model yearsTrim or packageTire sizeFrom
1984-1987 Standard 215/65R15 $80

Tire size by model year

Model yearTire sizeTrim or packageFrom
1987 Buick Grand National 215/65R15 Standard $80
1986 Buick Grand National 215/65R15 Standard $80
1985 Buick Grand National 215/65R15 Standard $80
1984 Buick Grand National 215/65R15 Standard $80

Which brand should you pick?

Buick does not stamp its own approval code on tires the way Porsche or BMW do. Any tire in the right size that meets or exceeds the load index and speed rating on your door placard is a legitimate replacement, so pick on wet braking, tread life and price. Our picks for each size are on the size pages below.

Check this before you order
The tire and loading information placard on a car door jamb
Open the driver's door. The placard sits on the jamb or the B-pillar.
TIRE AND LOADING INFORMATIONSEATING CAPACITY TOTAL 5 FRONT 2 REAR 3Combined weight of occupants and cargo must never exceed 850 lbsTIRESIZECOLD TIRE PRESSUREFRONTP225/65R1733 PSIREARP225/65R1733 PSISPARET155/90D1760 PSITHIS IS THE SIZE YOU ORDER

Every US car built since 2003 carries this placard. It also gives the pressures, which the sidewall does not: the number molded into the tire is the maximum it can hold, not what your car wants.

What those tires cost

215/65R15 1 of the listed Grand National builds from $80 per tire

Buick Grand National tires: common questions

What size tires does a Buick Grand National take?

The most common original size is 215/65R15. Other model years and trims use different sizes, so check the list on this page and confirm against the sticker inside your driver's door.

Can I fit a different size on my Buick Grand National?

You can, within limits: the overall diameter should stay within about 3 percent of the original, and the load index and speed rating must meet or exceed the door placard. Anything further changes your speedometer reading and can rub at full lock.

Where is the tire size on a Buick Grand National?

Open the driver's door and look at the white and yellow placard on the door jamb or the B-pillar. The same size is also molded into the sidewall of the tires currently on the car, unless someone changed them.

What size tires does a 1987 Buick Grand National take?

The 1987 Buick Grand National came from the factory on 215/65R15. Wheel packages can change that within the same model year, so check the placard inside the door jamb before you order.

What size tires does a 1986 Buick Grand National take?

The 1986 Buick Grand National came from the factory on 215/65R15. Wheel packages can change that within the same model year, so check the placard inside the door jamb before you order.

What size tires does a 1985 Buick Grand National take?

The 1985 Buick Grand National came from the factory on 215/65R15. Wheel packages can change that within the same model year, so check the placard inside the door jamb before you order.