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Vehicle Identification

When ordering parts it is essential that your car is identified exactly, by model year and serial number. Since many part changes were made during model years, the car number, engine number and body number provide the only positive identification. Quite often a car’s title will not show the correct model year. Before ordering parts, please use the space provided below to copy the applicable numbers from your car. Use of these numbers is the best way to ensure that you order and receive the correct parts. Wherever possible, we have listed part applications by car number (c). In some cases, we had to use the engine numbers (e) or body numbers (b). Commission numbers, as used from 1968, are of little significance and are not used for reference purposes. Where we use years, they are model years, not build dates. For the sake of simplicity, we have deleted all alpha-numeric prefixes from change points found in our application columns. While these letters are helpful in pinpointing certain production features, they do not affect the parts’ applications as listed. Example: Car number GHN5/ UB/234567 is shown as (c) 234567. For more information on these numbers and years, see the production data in the chart below.

The Car Number for cars from 1963-’69 is stamped on a plate secured to the right hand wing valance for­ward of the radiator.

The Car Number for cars from 1970 on is stamped on a plate secured to the left hand door post, and to a plate on top of the fascia.

The Body Number for early chrome-bumpered cars is stamped on a plate on the left front valance behind the radiator diaphragm as illustrated, or in some cases, in front of the radiator diaphragm.

The Engine Number is stamped on a plate secured to the right hand side of the cylinder block.

The Commission Number is stamped on a plate secured to the bonnet lock platform.

The Gearbox Number is stamped on top of the gearbox casing ad­ja­cent to the dipstick.

MODEL YEAR 1ST MONTH OF PRODUCTION   CAR # FIRST RD/GT CAR #  FIRST RD/GT CALENDAR YEAR** ENGINE # FIRST RD/GT COMMISSION # FIRST RD/GT BODY # FIRST RD/GT
1962  5/62 RD  - GHN3/L/101 (3-main engine)  -  -
1963 1/63 RD - GHN3/L/4619 18G/UH/101  (3-main engine) MGB/101
1964 8/63 RD GHN3/L/19586 GHN3/L/27278  N/A H  (3-main engine) MGB/26813
1965 10/64 RD GHN3/L/48766 GHN3/L/53635 18GB/UH/101 (first 5-main engine) N/A
GT - GHD3/L/71933 18GB/UH (con’t.) - -
1966 10/65 RD N/A GHN3/L/75243 18GB/UH (con’t.) N/A
GT GHD3/L/71933 N/A ­18GB/UH/30038 GBD/101
1967 11/66 RD GHN3/L/108039 - 18GB/UH (con’t.) N/A
GT N/A GHD3/L/109804 18GB/UH (con’t.) N/A
1968 10/67 RD GHN4/U/138401 N/A 18GF/WE/H101 GU23N/101F MGBU/101
GT GHD4/U/139472 N/A 18GF/WE/H101 GU23D/101P GBUD/500101
1969 10/68 RD GHN4/U/158371 GHN4/L/159806 18GH/WE/H101 G23N/18164‡ MGB/14588‡
GT GUD4/U/158233 GHD4/L/162552 18GH/WE/H101 N/A N/A
1970 10/69 RD GHN5/UA/187211 GHN5/UA/196222 18GH/-/22209 G23N/31862‡ MGBU/27359
GT GHD5/UA/187841 GHD5/UA/194552 18GH/-/22209 G23D/18042 GBUD/510630
1971 9/70 RD GHN5/UB/219021 GHN5/UB/232765 18GK/WE/H101 N/A MGBU/300101
GT GHD5/UB/219355 GHD5/UB/233500 18GK/WE/H101 G23D/029048 GBUD/520235
1972 5/71 RD GHN5/UC/258001 GHN5/UC/268635 18V/584Z/L101 (non O/D)
18V/585Z/L101 (O/D)
N/A MGBU/400101
GT GHD5/UC/258004 GHD5/UC/269303 18V/585Z/L101 (O/D)
18V/672Z/L101 (non O/D)
G23D/047002 GBUD/620101
1973 8/72 RD GHN5/UD/294251 GHN5/UD/307772  18V/63Z/L101 (O/D) G23N/62557‡ MGBU/500101
GT GHD5/UD/296001 GHD5/UD/31600 18V/672Z/L101 (non O/D)
18V/673/L101 (O/D)
N/A GBUD/720101
1974* 8/73 RD GHN5/UE/328101 GHN5/UE/338790 18V/672Z/L14891 (non O/D)‡
18V/673Z/l14891 (O/D)‡
G23N/86226‡ MGBU/600101
GT GHD5/UE/328801 GHD5/UE/338560 18V/672Z/L13234 (non O/D)‡ G23D/70589 GBUD/820101
1975 12/74 RD GHN5/UF/368082 (N.Amer.)
GHN5/UF/367901 (non-N.A.)
GHN5/UF/368090 18V/797AE/L101 (non O/D)
18V/798AE/L101 (O/D)
G23N/115009‡ GU23T/7707
GT N/A GHD5/UF/369101 N/A N/A N/A
1976 9/75 RD GHN5/UG/386601 GHN5/UG/393763 18V/801AE/L101 (non O/D)
18V/802AE/L101 (O/D)
G23N/129440‡ GU23T/50101
GT N/A GHD5/UG/394665 N/A N/A N/A
1977 6/76 RD GHN5/UH/410001 GHN5//UH/424748 18V/883AE/L101 (non O/D)
18V/884AE/L101 (O/D)
N/A GU23T/760000
GT GHD5/UH/410351 GHD5/UH/422730 N/A N/A N/A
1978 9/77 RD GHN5/UJ/447001 GHN5/UJ/455743 N/A N/A GU23T/860000
GT N/A GHD5/UJ/455283 N/A N/A N/A
1979 6/78 RD GHN5/UL/471001 GHN5/UL/485179 18V/883AEL/29033 (non O/D) ‡ N/A GU23T/960000
GT N/A GHD5/UL/483812 N/A N/A N/A
1980 6/79 RD GVVDJ2AG/501001 GVVDJ2AIG/507309 18V/883AEL/43540 (non O/D) ‡ N/A GU23T/984080‡
GT N/A GVGEJIAG/507309 N/A N/A N/A
* “1974-1/2” - The so-called “1974-1/2” model year began with roadster number 360301 and GT no. 361001 in September, 1974 and continued to the beginning of the 1975 model year.
** Calendar Year build dates are of historical significance only. 
† Commission Numbers were not used prior to 1968 model year.
‡ These numbers are approximate.
H 18GA engine used from car #31021 thru 48765.