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Silver Porsche 944 Turbo in a classic-car workshop

Porsche 944, 951 & 968 Option Codes: How to Decode Your Car

The factory option sticker helps identify how your Porsche 944, 944 Turbo (951) or 968 was originally equipped. This guide explains where to find it, how to read its codes and why the model year matters when researching equipment or ordering parts.

Browse the equipment tables below to explore everything from suspension and wheel specifications to seats, audio equipment and market versions. Keep the car's model year and original documentation alongside the code list as you build a picture of its factory specification.

One naming detail helps immediately: 951 is Porsche's type designation for the 944 Turbo. It is not an equipment option. Porsche's 944 Turbo history uses that designation explicitly.

Where to find the option-code sticker

For a 944, check beneath the rear hatch carpet, left of the latch. References may add an M before the sticker's three-digit number: 220 and M220 identify the same code.

For a 968, Porsche's driver's manual places the vehicle data label under the luggage-compartment carpet beside the left rear light assembly.

Photograph the whole label before transcribing it. Keep leading zeroes, and record the model year alongside the codes. A close-up of one number is useful, but a full-label photograph preserves the context you may need later.

How to use this reference

The tables below contain 147 reference entries covering 143 different numeric codes. They are an extensive working reference, rather than a claim to list every production, market or special-order code.

The model and reference-years column gives the context for each reading. Catalogue periods can span several variants, so an entry does not establish that the equipment was available on every car in that period. Where no year range is shown, confirm the reading against your car's model year. Links to Porsche's own catalogues appear at the end of this guide.

Read left and right as the vehicle's physical sides when facing forward. Do not automatically substitute driver and passenger: those depend on whether the car has left- or right-hand drive.

Use your browser's Find function to search for a number such as 220. The M prefix is included here for consistency. Alphabetic codes, paint identifiers and upholstery color identifiers need their own references; this numeric list should not be used to guess their meanings.

Chassis, transmission and wheels

Check the cited model and year context before applying a reading to your car.

Code Meaning Model / reference years
M030 Sport chassis specification 944 · 1985/2–1988
M031 Sachs sport suspension; non-height-adjustable 944 · 1989–1991
M164 215/60 VR15 tire specification 944 · 1985/2–1988
M220 Differential with 40% locking 944 · 1985/2–1988
M249 Automatic gearbox; see 968 notes 944 · 1985/2–1988
M347 Platinum-finish forged 16-inch wheels 944 · 1985/2–1988
M348 Grand Prix White forged wheels 944 · 1985/2–1988
M393 16-inch Club Sport wheels 944 · 1985/2–1988
M394 Magnesium 16-inch telephone-style wheels 944 · 1985/2–1988
M395 Forged 16-inch alloy wheels 944 · 1985/2–1988
M400 Cast 16-inch wheels, 7.5J/9J 944 · 1989–1991
M401 Forged 15-inch alloy wheels 944 · 1985/2–1988
M404 Anti-roll bars at both axles 944 · 1982–1985
M412 External cooler for engine oil 944 · 1985/2–1988
M414 External cooler for transmission oil 944 · 1985/2–1988
M447 Steel emergency spare wheel 944 · 1985/2–1988
M449 Forged emergency spare wheel 944 · 1989–1991
M455 Locking hardware for wheels 944 · 1985/2–1988
M456 Sport dampers; 23.5/14mm anti-roll bars 944 · 1985/2–1988
M458 Telephone-style wheels, 16-inch 7J/8J 944 · 1985/2–1988
M474 Sport dampers at both axles 944 · 1985/2–1988
M475 Asbestos-free brake friction material 944 · 1982–1985
M485 White Gold Metallic forged wheels 944 · 1985/2–1988
M593 Bosch system preventing brake lockup 944 · 1985/2–1988
M657 Steering with power assistance 944 · 1985/2–1988

Seats, trim and cabin equipment

Check the cited model and year context before applying a reading to your car.

Code Meaning Model / reference years
M018 Sport wheel with 30mm hub extension 944 · 1989–1991
M139 Heating for the left seat 944 · 1989–1991
M340 Heating for the right seat 944 · 1989–1991
M379 Left standard seat; powered height 944 · 1989–1991
M380 Right standard seat; powered height 944 · 1989–1991
M381 Left standard seat; manual adjustment 944 · 1989–1991
M382 Right standard seat; manual adjustment 944 · 1989–1991
M383 Left sport seat; powered height 944 · 1989–1991
M387 Right sport seat; powered height 944 · 1989–1991
M409 Leather-trimmed sport seating 944 · 1982–1985
M410 Sport seating with cloth/leatherette surfaces 944 · 1982–1985
M416 380mm leather wheel, four spokes 944 · 1989–1991
M423 Cassette storage and coin holder 944 · 1989–1991
M424 Heating with automatic temperature control 944 · 1989–1991
M431 363mm leather wheel, four spokes 944 · 1989–1991
M437 Powered left comfort seat 944 · 1989–1991
M438 Powered right comfort seat 944 · 1989–1991
M513 Right-seat lumbar adjustment 944 · 1989–1991
M526 Cloth-trimmed door cards 944 · 1989–1991
M573 Cabin air-conditioning equipment 944 · 1989–1991
M586 Left-seat lumbar adjustment 944 · 1989–1991
M684 Unsplit rear seating 944 · 1989–1991
M685 Split rear seating 944 · 1989–1991
M930 Rear seating upholstered in leather 944 · 1989–1991
M931 Rear seating upholstered in leatherette 944 · 1989–1991
M935 Draped leather rear-seat upholstery 944 · 1989–1991
M974 Cover for luggage area 944 · 1985/2–1988
M980 Draped leather upholstery specification 944 · 1989–1991
M983 Front seating upholstered in leather 944 · 1989–1991

Body, lighting and electrical equipment

Check the cited model and year context before applying a reading to your car.

Code Meaning Model / reference years
M020 Speedometer marked in mph/kmh 944 · confirm model year
M036 Bumper impact absorbers, both ends 944 · confirm model year
M058 Bumper impact absorbers, both ends 944 · confirm model year
M195 Provision for a car telephone 944 · 1985/2–1988
M197 Increased-capacity battery 944 · 1985/2–1988
M288 Washing equipment for headlights 944 · confirm model year
M341 Centralized door locking 944 · confirm model year
M398 944: flat driver-side mirror, powered/heated 944 · 1985/2–1988
M418 Protective moldings along body sides 944 · confirm model year
M425 Wiper for rear glass 944 · confirm model year
M429 White front fog-light specification 944 · confirm model year
M430 Yellow front fog-light specification 944 · confirm model year
M454 Road-speed cruise function 944 · confirm model year
M462 Securiflex windshield specification 944 · confirm model year
M463 Untinted windshield (later 944 reading) 944 · confirm model year
M498 Rear model badge omitted 944 · confirm model year
M501 Turbo script on the fender 944 · confirm model year
M525 Alarm with a sustained tone 944 · confirm model year
M533 Vehicle alarm equipment 944 · confirm model year
M562 Airbags for both front occupants 944 · confirm model year
M563 Passenger-side airbag equipment 944 · confirm model year
M564 Airbag equipment omitted 944 · confirm model year
M566 White front fog-light specification 944 · confirm model year
M567 Windshield with darker upper tint 944 · confirm model year
M576 Rear fog-light equipment omitted 944 · confirm model year
M602 Elevated brake-light position 944 · confirm model year
M605 Adjustable headlight aim 944 · confirm model year
M650 Electrically operated removable roof panel 944 · 1989–1991
M651 Powered window operation 944 · confirm model year
M655 Powered convertible-top operation 944 · 1989–1991

Audio and communications: 944 references

Check the cited model and year context before applying a reading to your car.

Code Meaning Model / reference years
M158 Blaupunkt Reno radio specification 944 · 1985/2–1988
M160 Blaupunkt Charleston radio specification 944 · 1985/2–1988
M326 Blaupunkt Berlin IQR88 receiver 944 · 1985/2–1988
M328 Blaupunkt Bremen SQR46 receiver 944 · 1985/2–1988
M329 Blaupunkt Toronto SQR48 receiver 944 · 1985/2–1988
M330 Blaupunkt Toronto SQR46 receiver 944 · 1985/2–1988
M490 Upgraded audio equipment 944 · 1989–1991
M494 Supplementary audio amplification 944 · 1989–1991
M686 Blaupunkt Ludwigsburg SQM26 receiver 944 · 1989–1991
M688 Blaupunkt Boston SQM23 receiver 944 · 1989–1991

Special-model identification: 944

Check the cited model and year context before applying a reading to your car.

Code Meaning Model / reference years
M758 1988 Turbo S model specification 944 · 1985/2–1988

Market and language specifications

Check the cited model and year context before applying a reading to your car.

Code Meaning Model / reference years
M024 Greece market specification 968 · 1992–1995
M027 California market specification 944 · confirm model year
M034 Italy market specification 968 · 1992–1995
M061 Great Britain market specification 968 · 1992–1995
M062 Sweden market specification 944 · 1982–1985
M063 Luxembourg market specification 968 · 1992–1995
M111 Austria market specification 944 · confirm model year
M113 Canada market specification 968 · 1992–1995
M114 Taiwan market specification 968 · 1992–1995
M119 Spain market specification 968 · 1992–1995
M124 France market specification 944 · 1982–1985
M126 French-language controls and indications 968 · 1992–1995
M127 Swedish-language controls and indications 968 · 1992–1995
M130 English-language controls and indications 968 · 1992–1995
M193 Japan market specification 944 · 1982–1985
M215 Saudi Arabia market specification 944 · 1982–1985
M225 Belgium market specification 968 · 1992–1995
M277 Switzerland market specification 968 · 1992–1995
M325 South Africa/New Zealand specification 968 · 1992–1995
M479 Australia market specification 968 · 1992–1995
M484 USA market specification 968 · 1992–1995
M488 German-language labeling 968 · 1992–1995
M489 German-language switches and insignia 968 · 1992–1995
M499 Germany market specification 968 · 1992–1995
M553 USA/Canada market specification 968 · 1992–1995

968-specific readings and additional equipment

Entries below follow the 968 catalogue.

Code Meaning Model / reference years
M249 Tiptronic automatic gearbox 968 · 1992–1995
M327 Symphony RDS audio unit 968 · 1992–1995
M331 Porsche CR-1 audio unit 968 · 1992–1995
M332 Porsche CR-2 audio unit 968 · 1992–1995
M333 Paris RCR41 audio unit 968 · 1992–1995
M334 Bremen RCM42 audio unit 968 · 1992–1995
M384 Left-side bucket seating 968 · 1992–1995
M385 Right-side bucket seating 968 · 1992–1995
M398 17-inch Cup wheel specification 968 · 1992–1995
M402 16-inch cast Cup wheels 968 · 1992–1995
M403 17-inch cast Cup wheels 968 · 1992–1995
M433 Atiwe leather-trimmed steering wheel 968 · 1992–1995
M480 Manual gearbox with six ratios 968 · 1992–1995
M561 Driver-side airbag equipment 968 · 1992–1995
M595 Rear spoiler matching body color 968 · 1992–1995
M692 Porsche multi-disc CD changer 968 · 1992–1995
M693 London RDM42 CD/radio unit 968 · 1992–1995
M986 Part-leather interior specification 968 · 1992–1995

Early 944 readings: 1982–1985 catalogue

These readings follow the early 944 catalogue; note the M463 difference.

Code Meaning Model / reference years
M026 Activated-carbon fuel-vapor canister 944 · 1982–1985
M157 Three-way catalyst, oxygen sensing and DME 944 · 1982–1985
M190 Additional reinforcement in side doors 944 · 1982–1985
M255 Display for fuel consumption 944 · 1982–1985
M395 Forged 6J×16 wheels; 205/55 VR16 tires 944 · 1982–1985
M463 Tint applied to side glass 944 · 1982–1985
M468 Green glass; darker windshield top 944 · 1982–1985
M560 Roof panel that can be removed 944 · 1982–1985
M568 Tint on windshield and side glass 944 · 1982–1985

Details worth checking before you order parts

M030 needs a model-specific check

Treat M030 as the starting point for researching the sport chassis fitted to that particular car. A Porsche-published account of a 944 S2 restoration describes its M030 suspension as height adjustable. That example is useful context, but it is not a specification sheet for every M030-equipped 944 or 968. Porsche: 944 S2 restoration.

For replacement dampers, springs or related hardware, match the exact vehicle and the equipment currently fitted. Check the differential specification separately instead of assuming a suspension code answers both questions.

A familiar number can identify different equipment

M249 illustrates why the model matters: the 944 reference describes an automatic gearbox, while the 968 reference specifies Tiptronic. The model-specific readings are recorded in the tables above.

Radio codes also deserve care. The audio table gives the reading in the cited catalogue, not a promise that one radio name applies throughout the model's entire production run. Compare the radio's identification label and the car's documentation before sourcing a replacement.

M463 is another example: the early 944 catalogue associates it with tinted side glass. Later references give a clear-windshield reading. The separate early-car table preserves that distinction.

M398 is model-dependent too: the cited 944 reading concerns a mirror; the 968 reading concerns wheels. Always read the model context alongside the number.

Factory records and the car today are two things to compare

Use an option-code decoding as a record to investigate. A previous owner may have replaced a seat, changed the wheels or upgraded the suspension. If the label and the car disagree, photograph the fitted part and look for its part number before drawing a conclusion.

For a parts inquiry, prepare the VIN, model year, exact model, relevant codes and photographs. This gives a supplier much more useful information than an option number on its own.

Frequently asked questions

What if the option sticker is missing?

Gather the vehicle's original paperwork and ask about available factory documentation. In the United States, Porsche offers a Production Specification service that can include recorded optional equipment and other build details. Availability of individual historical details depends on the records. Start with Porsche Vehicle Documentation.

Does every code represent an extra-cost option?

No. These references also contain market versions, language specifications and equipment deletions. Interpret the description before treating a code as an upgrade.

Can an option code confirm that a part will fit?

Use it to narrow the inquiry, then verify the part number and the vehicle application. Ask a supplier to check the VIN and relevant production details, especially if the car has been modified.

What if a code is absent from this list?

Keep the complete code as printed, including any letters or leading zeroes. Check the matching model-year catalogue or request help using the full vehicle data label. A missing entry here is not evidence that the sticker is wrong.

How should I save my decoded specification?

Keep a simple record with four columns: printed code, decoded meaning, source and any difference observed on the car. Save the original label photograph beside it. That record will be useful the next time you research a replacement part or discuss the car's history.

Porsche reference documents

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