Wheels

Wheels:

NOTE:
Improper handling can damage the wheel surface.

Carry out tire removal and mounting using a bead holding - down device only.

Use a leather pad on the rim flange to support the valve insertion tool.

Only use the Porsche centering clamping set for balancing.

Do not use brushes to clean the wheels because brushes can cause deep scratches that cannot be removed by polishing.

Never use solvents or other chemical substances on tires.

Overview of Porsche wheels for summer tires

Identification on the inside/outside of the wheel disc:

Wheel size, rim offset (RO) in mm, Part No, and Porsche logo





Front: 7J x 16 H2, RO 55
Part No. 993.362.114.00

Rear: 9J x 16 H2, RO 70
Part No. 993.362.118.00





Front: 7J x 17 AH, RO 55
Part No. 965.362.124.00/01

Rear: 9J x 17 AH, RO 52
Part No. 965.362.128.00





Front: 7J x 17 H2, RO 55
Part No. 993.362.124.50

Rear: 9J x 17 H2, RO 55
Part No. 993.362.128.50





Front: 7J x 17 H2/AH, RO 55
Part No. 993.362.124.00

Rear: 9J x 17 H2/AH, RO 55/70
Part No. 993.362.128.00/01





Front: 7J x 17 H2, RO 55
Part No. 993.362.124.51

Rear: 9J x 17 H2, RO 55
Part No. 993.362.128.51





Front: 7J x 17 H2, RO 55
Part No. 996.362.124.01

Rear: 9J x 17 H2, RO 55
Part No. 996.362.128.01





Front: 7J x 17 H2, RO 55
Part No. 996.362.124.00

Rear: 9J x 17 H2, RO 55
Part No. 996.362.128.00





Front: 7J x 17 H2, RO 50
Part No. 996.362.124.02

Rear: 9J x 17 H2, RO 55
Part No. 996.362.128.02





Front: 8J x 18 H2, RO 52
Part No. 993.362.136.00

Rear: 10J x 18 H2, RO 65
Part No. 993.362.140.01





Front: 8J x 18 H2, RO 52
Part No. 993.362.136.01/07/08

Rear: 10J x 18 H2, RO 65
Part No. 993.362.140.04/07/08





Front: 8J x 18 H2, RO 52
Part No. 993.362.136.50

Rear: 10J x 18 H2, RO 65
Part No. 993.362.140.50





Front: 8J x 18 H2, RO 52
Part No. 996.362.136.50

Rear: 10J x 18 H2, RO 65
Part No. 996.362.140.50





Front: 8J x 18 H2, RO 52
Part No. 996.362.136.03

Rear: 10J x 18 H2, RO 65
Part No. 996.362.140.03





Front: 8J x 18 H2, RO 52
Part No. 996.362.136.01

Rear: 10J x 18 H2, RO 65
Part No. 996.362.140.04

General Info:

Always use new valves when changing tires.

Always observe any possible instructions concerning the rolling direction and/or specifying which side the tires must be mounted on. Refer to notes (if applicable).

Coat the tire beads and humps with mounting lubricant before mounting the tire. This ensures that the tire beads will slide over the humps easily. In order to prevent the tire from turning on the wheel, avoid extreme driving maneuvers (acceleration and braking) during the first (100 to 200 miles) with new or recently mounted tires.

In order to optimize smoothness of rolling, it is appropriate - and necessary in individual cases - to mount the tire in a certain (favorable) position with respect to the wheel (matching).

Matching (uncontrolled and controlled) is explained below:

Uncontrolled matching: Turning the tire on the wheel by 90 degrees or 120 degrees if necessary in order to achieve an acceptable value with regard to rolling smoothness (true running, imbalance and weight distribution of balance weights).

Controlled matching: With a balancing machine with matching program. In most cases, this produces an even better result with regard to the rolling smoothens (true running, imbalance and weight distribution of the balance weights) that can be achieved with uncontrolled matching. Maximum permissible radial runout and lateral runout of the wheels < 0.7 mm. Maximum permissible radial runout and lateral runout of the wheels with tires < 1.25 mm. values <1.50 mm - ideally approx. 0.5 mm - are desirable.

The mounting pressure (seating pressure) of 58 psi/4.0 bar over pressure must not be exceeded before both tire beads are evenly seated on the rim flange.

If new tires are to be mounted or the tires of one axle are to be replaced, tires of the same make, the same type and with the same specification code must always be used of the two axles. If tires are replaced on one axle only, the different tread depth from that on the other axle can cause a noticeable change in the familiar handling. This is especially the case if new tires are mounted on the rear axle. This effect decreases with increasing tire mileage.

When replacing a tire on an axle, make sure that the tread depth of the new tire does not differ form that of the other by more than 30%.

If a tire is damaged and it cannot be determined with absolute certainty that there is no ply damage - with all of its consequences - or if the tire was thermally or mechanically overloaded due to a loss of pressure or other prior damage, recommend replacement of the tire in question for safety reasons.

Repair on "ZR" tires are not permissible, as is the use of inner tubes in tubeless tires. Tires age due to chemical and physical processes, which can impair their function. Tires that are stored unused for an extended period harden and become brittle faster that tires that are in continual use. Hairline again cracks can occur older tires. On times in continual use, the kneading action activates the plasticizer in the rubber and thereby prevents hardening and cracking.

Therefore, attention should be paid not only to the tread depth but also to the age of the tire. Tires should not be older than 6 years. The age of the tire can be determined via the DOT code on the sidewall, which indicates the production date of the tire: e.g. DOT 2201 = 22nd week of 2001.

Tires/complete wheels must be stored in a cool, dry and dark room with adequate ventilation. They must never come into contact with fuel, oil, grease or chemicals.

Complete wheels can be stacked for storage; it is advisable to increase the tire pressure by 0.4 bar.
Optimum conditions for proper storage of complete wheels are provided by the Original Porsche storage stand (trolley), Part Number 000 044 000 38.

If the tires are not mounted on wheels, it is best to store them in a vertical position. In this case the tries should be turned every two weeks in order to prevent excessive flattening. If the tires are stacked in horizontal position, they will become severely deformed and cannot be seated in the rim flange easily when they are fitted.

VIN List:





USA/Canada vehicles that cannot be retrofitted with 18-inch wheels shown above.