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Porsche 911 VIN decoder: every 911 chassis number format since 1964

Filed
Sources checked
4 listed below

This record covers

  • How to read a classic 911 chassis number by year
  • Which digit shows 911 T, E, S or Carrera
  • Chassis ranges for the first 911s of 1964–1966
  • How modern 911 VINs show the generation

Short answerA Porsche 911 VIN changed format several times. Cars from 1964–1967 use six-digit numbers from 300001; 1968 uses eight digits and 1969 nine, both starting 11 for 911; 1970–1979 cars use ten digits starting 911 or 930, where digit 4 is the model year, digit 5 the variant and digit 6 the body. From 1981 every 911 has a 17-character VIN starting WP0, with the generation in positions 7, 8 and 12.

1964 first chassis
300001documented
1974 Carrera coupé code
911 4 6 0documented
1981+ generation code
Positions 7, 8, 12documented
Options in the VIN
Not encodedunknown

Decode a Porsche VIN here

Record card / Karteikarte

10-digit chassis number (1970–1979)

1974 Porsche Carrera, Coupé (Porsche body)

Documented: number format
Type Documented
911
Model year Documented
1974
Digit 4 = 4.
Variant Documented
Carrera
Digit 5 = 6.
Body Documented
Coupé (Porsche body)
Digit 6 = 0.
Serial Documented
0001
Original colour Unknown
Not encoded
Order a Porsche Production Specification (PPS) or Kardex copy.
Engine match Unknown
Not encoded
Compare the engine number stamped on the case with the factory record.
  • Format: type (3) + model year (1) + variant (1) + body (1) + serial (4).

The 911 has carried more chassis number formats than any other Porsche, because it was built through every change in the factory’s numbering. That makes a 911 VIN easy to date and hard to read without a key. The decoder above reads all of them; this page is the key.

How do you read a Porsche 911 VIN?

You read a Porsche 911 VIN by first counting its characters, because the length tells you the era and the era tells you what each digit means.

YearsLengthExampleStructure
1964–19676 digits300001Serial in a coupé or Targa range
19688 digits1180123611 (911) + year 8 + variant/body digit + serial
19699 digits11920000111 + year 9 + variant + body + serial
1970–197910 digits9111120162Type (911 or 930) + year + variant + body + serial
198010 characters91A0140001Transition format with the letter A
1981 onward17 charactersWP0ZZZ93ZGS000123ISO VIN: WP0 + market code + type + year letter + plant + serial

What were the first Porsche 911 chassis numbers?

The first Porsche 911 chassis numbers were six-digit numbers starting at 300001. Published chassis tables list these ranges for the first years.

Chassis rangeBuiltBodyModel
300001–3002351964Coupé911 (901/01 engine)
300236–3051001965Coupé911
305101–3085231966Coupé911 and 911 S
500001–5007181966Targa911 and 911 S

The 911 S shared the 1966 ranges, recorded in some tables with an S suffix, so the variant has to be confirmed with the factory record. The pre-production 901 prototypes before 300001 used replacement numbers from 13321, covered on the 901 prototype chassis page.

Which digit shows a 911 T, E, S or Carrera?

On 1970s ten-digit chassis numbers, the fifth digit shows the variant and the sixth the body.

YearsDigit 5 (variant)Digit 6 (body)
1970–19731 = 911 T, 2 = 911 E, 3 = 911 S, 6 = Carrera RS 2.7 (1973)0 = coupé, 1 = Targa, 2 = Karmann coupé (1970–71)
1974–19751 = 911, 3 = 911 S, 6 = Carrera, 4 = US Carrera, 2 = US 911 S (1975)0 = coupé, 1 = Targa
19766 = Carrera 3.00 = coupé, 1 = Targa

Two examples: 9114600001 reads as a 1974 911 Carrera coupé, and 9111120162 as a 1971 911 T coupé bodied by Karmann. The second is the number from the $21 million “911 T prototype” listing. For the Turbo, the number starts with its own type: 9305700001 is the first 1975 911 Turbo.

How do modern 911 VINs show the generation?

Modern 911 VINs show the generation in positions 7, 8 and 12 read together. A 1980s G-model reads 911 and a Turbo 930; later cars read 964, 993, 996, 997, 991 or 992. Position 10 gives the model year letter and position 11 the plant. Every position is explained in the 17-digit Porsche VIN decoder guide.

What can a 911 VIN not tell you?

A 911 VIN cannot tell you the colour, options, engine match or history. Those live in the factory record: order a Porsche Production Specification, explained in options and build sheet by VIN, and check the engine against the Porsche engine number guide. Before you start, confirm the number on the car itself using where to find the VIN on a Porsche.

Frequently asked questions

How many digits is a Porsche 911 VIN?

It depends on the year. Early 911s from 1964–1967 have six-digit chassis numbers, 1968 cars eight, 1969 cars nine, 1970–1980 cars ten, and every 911 from 1981 onward a 17-character VIN.

How can I tell a 911 S from a 911 T by the chassis number?

For 1970–1973 cars, the fifth digit of the ten-digit chassis number shows the variant: 1 for 911 T, 2 for 911 E and 3 for 911 S. On 1974–1975 cars, 1 is the base 911, 3 the 911 S and 6 the Carrera.

What does 930 at the start of a Porsche chassis number mean?

930 is the type number of the 911 Turbo. A 1970s chassis number starting 930, such as 9305700001, belongs to a 911 Turbo; from 1981 the same type appears in positions 7, 8 and 12 of the VIN.

Does a 911 VIN show whether the car is matching numbers?

No. Matching numbers means the engine and gearbox are the units recorded for that chassis at the factory, which needs the engine and gearbox numbers compared with a factory record.

Sources checked

  1. [1]Porsche 911 chassis numbers 1964 to 1969, bigporsche.com
  2. [2]Porsche 911 chassis numbers 1973 to 1975, bigporsche.com
  3. [3]Porsche VIN specification, Wikipedia
  4. [4]Porsche VIN decoder guide, Stuttcars