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Original Equipment Tire Designations


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Since tires play such an important roll in establishing the personality of a vehicle, numerous vehicle manufacturers require their tire suppliers identify some or all of their Original Equipment (OE) tires with symbols or codes branded on the sidewalls that confirm the tire's original use.

The vehicle and tire manufacturer's goal is to make it easier for the owners to identify and select exact replacements when the Original Equipment tires wear out because matching the original tires exactly helps maintain the vehicle's intended personality.

Unfortunately many vehicles wear out tires in pairs (rather than sets of four) due to a lack of maintenance or when equivalent tread wear can't be achieved through periodic tire rotation. While it can't make up for performance differences due to tread depth, it is most important to match new tires to those originally used on the vehicle when replacing tires in pairs.

The following list provides the symbols or codes currently in use:

MakeVehicleSymbols/Codes
Aston MartinSome VehiclesAMS
AM2
AM8
AM9
AMR
AMX
Audi Some VehiclesA
AO
RO1
RO2
AOE (Reduced-Range Extended Mobility Tire)
BentleySome Vehicles"B" in a circle
B
B1
BC
BL
BMWSome Vehicles5-Pointed Star Symbol
ChryslerSome Dodge ViperC1
FerrariSome VehiclesF
K-1
K-2
General MotorsAll VehiclesTPC SPEC (Tire Performance Criteria Specification)
TPC SPEC 1156 M+S (All Season Tires)
TPC SPEC 1156 (Non All Season Tires)
HondaAcura NSXH-0 (H-Zero)
H-1 (H-One)
HyundaiSome VehiclesH
JaguarSome VehiclesJ
"J" in a circle
LamborghiniSome VehiclesL
LotusSome VehiclesLTS
MaseratiSome VehiclesMGT
McLarenAll VehiclesMC
MC1
MercedesSome VehiclesMO
MO1
MOE (Reduced-Range Extended Mobility Tire)
MiniSome Vehicles5-Pointed Star Symbol
PorscheAll VehiclesN-0 (N-Zero)
N-1 (N-One)
N-2 (N-Two)
N-3 (N-Three)
N-4 (N-Four)
N-5 (N-Five)
N-6 (N-Six)
VolkswagenSome VehiclesA
VO

The numerical escalation of Porsche N-Spec tires reflect either enhancements to the previous generation of the same tire model, or a change in the design specifications of a tire model used on a current Porsche vehicle to better complement the needs of a new Porsche vehicle.

Also read:

Additional Information on Porsche OE Tires

What's "Original" about Original Equipment Tires

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