Porsche 911 SC tire size
Original tire sizes for the Porsche 911 SC, model years 1978, 1979, 1980, 1981, 1982 and 1983. Trim levels and wheel packages change the size within the same year, so confirm on the door-jamb sticker before ordering.
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, which can differ from what a previous owner put on. Our guide on reading a tire size shows exactly where to look.
Buy tires for your Porsche 911 SC
1978-1983
Front axle
Rear axle
All four corners: $1,150.14 for 2 front + 2 rear, before mounting.
Each button opens our pick in that size at SimpleTire, at the price shown: the mid-range tire where the shop stocks it, otherwise our budget or premium pick, and only when none of those is listed the cheapest tire in stock. The size page has budget and premium picks too. Prices exclude mounting. Check the sticker inside the driver’s door before you order.
Size by year and trim
| Model years | Trim or package | Tire size | From, per tire | |
|---|---|---|---|---|
| 1978-1983 | Rear | 215/60R15 | $72 | Prices |
| 1978-1983 | Front | 185/70R15 | $449 | Prices |
Tire size by model year
| Model year | Tire size | Trim or package | From, per tire | |
|---|---|---|---|---|
| 1983 Porsche 911 SC | 215/60R15, 185/70R15 | Rear or Front | $72 | Prices |
| 1982 Porsche 911 SC | 215/60R15, 185/70R15 | Rear or Front | $72 | Prices |
| 1981 Porsche 911 SC | 215/60R15, 185/70R15 | Rear or Front | $72 | Prices |
| 1980 Porsche 911 SC | 215/60R15, 185/70R15 | Rear or Front | $72 | Prices |
| 1979 Porsche 911 SC | 215/60R15, 185/70R15 | Rear or Front | $72 | Prices |
| 1978 Porsche 911 SC | 215/60R15, 185/70R15 | Rear or Front | $72 | Prices |
What Porsche approves
Porsche-approved tires are marked N0, N1, N2 and so on. The number is the generation of the approval, not a quality grade.
Porsche tests each tire against the specific car and raises the number every time the spec is revised. Mixing an N0 on one axle and an N2 on the other is not recommended, and on 911 models the front and rear tires are usually different sizes.
Brands that carry the approval
Written on the sidewall as: Michelin Pilot Sport 4S (N0), Pirelli P Zero (N1).
The drawing carries the sizes we list for this car, so you know what you are looking for. The placard on the car is still the final word, and it is the only place that gives the cold pressures: the number molded into the sidewall is the maximum the tire can hold, not what your car wants.
What those tires cost
Buying wheels at the same time?
A staggered car is the one case where new wheels and new tires usually happen together, because a bent or corroded rear rim is what sends most people shopping in the first place. Four numbers have to match before the size does any good.
- Bolt pattern
- Number of studs and the circle they sit on, written as 5x114.3. It is not adjustable; adapters are a compromise.
- Offset
- How far the mounting face sits from the centre line. Wrong offset rubs the strut or the fender, even in the right size.
- Centre bore
- The hole in the middle must sit on the hub, not on the bolts. A hub-centric ring fills a bore that is too large.
- Load rating
- Each wheel must carry its share of the loaded car. This is what gets missed on trucks and on anything towing.
Wheels and complete wheel and tire packages, mounted and balanced.
Porsche 911 SC tires: common questions
What size tires does a Porsche 911 SC take?
The most common original size is 215/60R15. 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 Porsche 911 SC?
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 Porsche 911 SC?
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 1983 Porsche 911 SC take?
The 1983 Porsche 911 SC came from the factory on 215/60R15 and 185/70R15. 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 1982 Porsche 911 SC take?
The 1982 Porsche 911 SC came from the factory on 215/60R15 and 185/70R15. 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 1981 Porsche 911 SC take?
The 1981 Porsche 911 SC came from the factory on 215/60R15 and 185/70R15. Wheel packages can change that within the same model year, so check the placard inside the door jamb before you order.