DISTRIBUTOR

CAR IDENTIFICATION MG B

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.

Car Number

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.

Body Number

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.

Engine Number

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

Commission Number

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

Gearbox Number

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

Power Unit Identification Serial Number Prefix Code (not V8)

Vehicle Identification Serial Number Prefix Letter Code (not V8)

Vehicle Identification Prefix Letter Code


* "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.
Model Year	1st Month of Prod.		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
1965	10/64	GT	-	GHD3/L/71933	18GB/UH (con't.)	-	-
1966	10/65	RD	N/A	GHN3/L/75243	18GB/UH (con't.)	@	N/A
1966	10/65	GT	GHD3/L/71933	N/A	18GB/UH/30038	@	GBD/101
1967	11/66	RD	GHN3/L/108039	-	18GB/UH (con't.)	@	N/A
1967	11/66	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
1968	10/67	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#
1969	10/68	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
1970	10/69	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
1971	9/70	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
1972	5/71	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
1973	8/72	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
1974*	8/73	GT	GHD5/UE/328801	GHD5/UE/338560	18V/672Z/L13234 (non O/D)#	G23D/70589	GBUD/820101
1974	9/74	1. Rubberbumper Model Roadster - from Chassis-No. 360301
1974	9/74	1. Chromebumper Model GT - from Chassis-No. 361001
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
1975	12/74	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
1976	9/75	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
1977	6/76	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
1978	9/77	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
1979	6/78	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#
1980	6/79	GT	N/A	GVGEJIAG/507309	N/A	N/A	N/A

unillustrated articles

Ill.no.	Partno.	Part	Quantity required	Info	Price
NI	222-555	ELEC IGN I 23/24/25D4 +VE	1	Ignitor I, for 25D4 distributor, positive earth	CHF 298.30
NI	222-405	ELEC IGN I 23/24/25D4 -VE	1	Ignitor I, for 25D4 distributor, negative earth	CHF 351.15
NI	143-323	ELECTRONIC IGNITION KIT, PERTRONIX IGNITOR II, 43/44/45D4, NEGATIVE EARTH	1	Ignitor II, for 45D4 distributor, negative earth	CHF 390.45

Ill.no.	Partno.	Part	Quantity required	Info	Price
1	12H792	DISTRIBUTOR, 25D4, LUCAS NO. 40897, NEW	1	1962-67, 18G-18GB	CHF 148.15
1	12H2722	DISTRIBUTOR, 25D4, LUCAS NO. 41155, NEW	1	1967-70, 18GD-18V581, 582 & 583	CHF 148.15
1	12H2894	DISTRIBUTOR, LU41288, 25D4	1	1962 - 70, 18G & 18V engines	CHF 148.15
1	12H3580	DISTRIBUTOR, 25D4, LUCAS NO. 41339, NEW	1	1971-74, 18V779 & 780	CHF 148.15
NI	12B2062	90° CONNECTION VACUUM PIPE	1	Type A: Lucas 25D Distributors - 1962-74 - rubber - angled - a/r	CHF 3.50
NI	12B2095	VACUUM LINE CONNECTION, STRAIGHT	1	Type A: Lucas 25D Distributors - 1962-74 - rubber straight - a/r	CHF 6.15
NI	37H4229M	VACUUM PIPE PER METRE	1	Type A: Lucas 25D Distributors - 1962-74 - plastic - a/r	CHF 5.60
NI	606895	BEARING BUSH IGNITION DISTRIBUTOR	1		CHF 62.25

Ill.no.	Partno.	Part	Quantity required	Info	Price
2	8G726	DISTRIBUTOR CAP RUBBER/ WATERPROOF (SIDE CONNECTIONS)	1	Type A: Lucas 25D Distributors - 1962-67	CHF 34.35

Ill.no.	Partno.	Part	Quantity required	Info	Price
3	GDC102	DISTRIBUTOR CAP 4-CYL. (CONNECTIONS SIDEWAYS)	1	Type A: Lucas 25D Distributors - 1962-67	CHF 31.45

Ill.no.	Partno.	Part	Quantity required	Info	Price
4	GDC103	DISTRIBUTOR CAP 4-CYL. (CONNECTIONS UPWARDS)	1	Type A: Lucas 25D Distributors - 1968-74	CHF 18.30

Ill.no.	Partno.	Part	Quantity required	Info	Price
5	262703A	BRUSH AND SPRING 25D	1	Type A: Lucas 25D Distributors	CHF 15.40

Ill.no.	Partno.	Part	Quantity required	Info	Price
6	GRA2101	USE GRA2101HQ	1	Type A: Lucas 25D Distributors
6	GRA2101HQ	ROTOR ARM 4CYL HIGH QUALITY	1	Type A: Lucas 25D Distributors - high quality	CHF 23.70

Ill.no.	Partno.	Part	Quantity required	Info	Price
7	GCS107	POINT SET, CONTACT BREAKER	1	Type A: Lucas 25D Distributors	CHF 18.05
7	GCS107HQ	POINT SET, CONTACT BREAKERS, HIGH QUALITY	1		CHF 27.50
7	GCS2101	POINT SET, CONTACT BREAKER	1	Type A: Lucas 25D Distributors - quick fit	CHF 11.25
7	GCS111	POINT SET, CONTACT BREAKER	1	Type A: Lucas 25D Distributors - competition, 32oz spring load	CHF 38.70

Ill.no.	Partno.	Part	Quantity required	Info	Price
8	GCS1001S	SCREW FOR POINTS-25D	1	Type A: Lucas 25D Distributors	CHF 3.10

Ill.no.	Partno.	Part	Quantity required	Info	Price
9	GSC111	USE GSC111HQ	1	Type A: Lucas 25D Distributors
9	GSC111HQ	CONDENSER & LEAD, OE QUALITY 25D	1	Type A: Lucas 25D Distributors	CHF 25.50

Ill.no.	Partno.	Part	Quantity required	Info	Price
10	GSC1001S	SCREW, CONDENSER TO BASE PLATE	1	Type A: Lucas 25D Distributors	CHF 1.55

Ill.no.	Partno.	Part	Quantity required	Info	Price
11	17H5469	DISTRIBUTOR BASE PLATE TOP, LONG CB PIVOT	1	Type A: Lucas 25D Distributors - standard	CHF 124.45
11	90607607	BASEPLATE 25D LATE, SHORT CB PIVOT	1	Type A: Lucas 25D Distributors - quick fit	CHF 61.90
11	54412154	DISTRIBUTOR BASE PLATE LOWER HALF	1		CHF 51.20

Ill.no.	Partno.	Part	Quantity required	Info	Price
12	153-645	EARTH CABLE DISTRIBUTOR PLATE	1	Type A: Lucas 25D Distributors	CHF 20.25

Ill.no.	Partno.	Part	Quantity required	Info	Price
13	37H2981	CONNECTION DISTRIBUTOR WITH CABLE TO BREAKER , LT LEAD & BUSH, LUCAR TERMINAL	1	Type A: Lucas 25D Distributors	CHF 25.20

Ill.no.	Partno.	Part	Quantity required	Info	Price
14	515859	VACUUM UNIT	1	Type A: Lucas 25D Distributors - (40897/41155/41288)	CHF 65.90
14	RTC1425	VACUUM UNIT	1	Type A: Lucas 25D Distributors - (41339)	CHF 82.50
14	163-739	ADJUSTER KIT LUCAS 23D, 24D & 25D DISTRIBUTOR	1		CHF 32.90

Ill.no.	Partno.	Part	Quantity required	Info	Price
15	13H9694	Distributor, 45D4, Lucas no. 41610, new	1	Type B: 45D4 Lucas Distributors	CHF 89.10

Ill.no.	Partno.	Part	Quantity required	Info	Price
16	GDC136	DISTRIBUTOR CAP 4-CYL. (CONNECTIONS UPWARDS)	1	Type B: 45D4 Lucas Distributors	CHF 16.40

Ill.no.	Partno.	Part	Quantity required	Info	Price
17	RTC315A	BRUSH & SPRING, HIGH TENSION	1	Type B: 45D4 Lucas Distributors	CHF 9.60

Ill.no.	Partno.	Part	Quantity required	Info	Price
18	GRA2114	ROTOR ARM	1	Type B: 45D4 Lucas Distributors	CHF 9.20
18	GRA2114HQ	ROTOR ARM 45D HIGH QUALITY	1	Type B: 45D4 Lucas Distributors - high quality	CHF 23.70

Ill.no.	Partno.	Part	Quantity required	Info	Price
19	GCS118	POINT SET, CONTACT BREAKER	1	Type B: 45D4 Lucas Distributors	CHF 12.65

Ill.no.	Partno.	Part	Quantity required	Info	Price
20	GCS1002S	SCREW FOR POINTS 45D	1	Type B: 45D4 Lucas Distributors	CHF 3.55

Ill.no.	Partno.	Part	Quantity required	Info	Price
21	GSC2109	CONDENSER	1	Type B: 45D4 Lucas Distributors	CHF 10.85

Ill.no.	Partno.	Part	Quantity required	Info	Price
22	GSC1001S	SCREW, CONDENSER TO BASE PLATE	1	Type B: 45D4 Lucas Distributors	CHF 1.55

Ill.no.	Partno.	Part	Quantity required	Info	Price
23	37H8297	USE RTC1190	1	Type B: 45D4 Lucas Distributors	availability request
23	RTC1190	DISTRIBUTOR BASE PLATE	1	Type B: 45D4 Lucas Distributors	availability request

Ill.no.	Partno.	Part	Quantity required	Info	Price
24	37H8298	VACUUM UNIT	1	Type B: 45D4 Lucas Distributors (for 41427)	CHF 71.95
24	AAU2233	VACUUM UNIT	1	Type B: 45D4 Lucas Distributors (for 41429)	CHF 63.20

Ill.no.	Partno.	Part	Quantity required	Info	Price
25	513682A	O RING	1	Type A: Lucas 25D Distributors	CHF 3.35

Ill.no.	Partno.	Part	Quantity required	Info	Price
26	3H2138	CLAMP PLATE DISTRIBUTOR	1	Type A: Lucas 25D + Type B: 45D4 Lucas	CHF 38.35

Ill.no.	Partno.	Part	Quantity required	Info	Price
27	GHF117	SCREW 1/4UNF X 3/4	2	Type A: Lucas 25D + Type B: 45D4 Lucas	CHF 1.45

Ill.no.	Partno.	Part	Quantity required	Info	Price
28	GHF331	WASHER SPRING 1/4	2	Type A: Lucas 25D + Type B: 45D4 Lucas	CHF 0.55

Ill.no.	Partno.	Part	Quantity required	Info	Price
29	GHF300	WASHER 1/4 X 1/2 OD	2	Type A: Lucas 25D + Type B: 45D4 Lucas	CHF 0.45

Ill.no.	Partno.	Part	Quantity required	Info	Price
1	12H792	DISTRIBUTOR, 25D4, LUCAS NO. 40897, NEW	1	1962-67, 18G-18GB	CHF 148.15
1	12H2722	DISTRIBUTOR, 25D4, LUCAS NO. 41155, NEW	1	1967-70, 18GD-18V581, 582 & 583	CHF 148.15
1	12H2894	DISTRIBUTOR, LU41288, 25D4	1	1962 - 70, 18G & 18V engines	CHF 148.15
1	12H3580	DISTRIBUTOR, 25D4, LUCAS NO. 41339, NEW	1	1971-74, 18V779 & 780	CHF 148.15
NI	12B2062	90° CONNECTION VACUUM PIPE	1	Type A: Lucas 25D Distributors - 1962-74 - rubber - angled - a/r	CHF 3.50
NI	12B2095	VACUUM LINE CONNECTION, STRAIGHT	1	Type A: Lucas 25D Distributors - 1962-74 - rubber straight - a/r	CHF 6.15
NI	37H4229M	VACUUM PIPE PER METRE	1	Type A: Lucas 25D Distributors - 1962-74 - plastic - a/r	CHF 5.60
NI	606895	BEARING BUSH IGNITION DISTRIBUTOR	1		CHF 62.25
2	8G726	DISTRIBUTOR CAP RUBBER/ WATERPROOF (SIDE CONNECTIONS)	1	Type A: Lucas 25D Distributors - 1962-67	CHF 34.35
3	GDC102	DISTRIBUTOR CAP 4-CYL. (CONNECTIONS SIDEWAYS)	1	Type A: Lucas 25D Distributors - 1962-67	CHF 31.45
4	GDC103	DISTRIBUTOR CAP 4-CYL. (CONNECTIONS UPWARDS)	1	Type A: Lucas 25D Distributors - 1968-74	CHF 18.30
5	262703A	BRUSH AND SPRING 25D	1	Type A: Lucas 25D Distributors	CHF 15.40
6	GRA2101	USE GRA2101HQ	1	Type A: Lucas 25D Distributors
6	GRA2101HQ	ROTOR ARM 4CYL HIGH QUALITY	1	Type A: Lucas 25D Distributors - high quality	CHF 23.70
7	GCS107	POINT SET, CONTACT BREAKER	1	Type A: Lucas 25D Distributors	CHF 18.05
7	GCS107HQ	POINT SET, CONTACT BREAKERS, HIGH QUALITY	1		CHF 27.50
7	GCS2101	POINT SET, CONTACT BREAKER	1	Type A: Lucas 25D Distributors - quick fit	CHF 11.25
7	GCS111	POINT SET, CONTACT BREAKER	1	Type A: Lucas 25D Distributors - competition, 32oz spring load	CHF 38.70
8	GCS1001S	SCREW FOR POINTS-25D	1	Type A: Lucas 25D Distributors	CHF 3.10
9	GSC111	USE GSC111HQ	1	Type A: Lucas 25D Distributors
9	GSC111HQ	CONDENSER & LEAD, OE QUALITY 25D	1	Type A: Lucas 25D Distributors	CHF 25.50
10	GSC1001S	SCREW, CONDENSER TO BASE PLATE	1	Type A: Lucas 25D Distributors	CHF 1.55
11	17H5469	DISTRIBUTOR BASE PLATE TOP, LONG CB PIVOT	1	Type A: Lucas 25D Distributors - standard	CHF 124.45
11	90607607	BASEPLATE 25D LATE, SHORT CB PIVOT	1	Type A: Lucas 25D Distributors - quick fit	CHF 61.90
11	54412154	DISTRIBUTOR BASE PLATE LOWER HALF	1		CHF 51.20
12	153-645	EARTH CABLE DISTRIBUTOR PLATE	1	Type A: Lucas 25D Distributors	CHF 20.25
13	37H2981	CONNECTION DISTRIBUTOR WITH CABLE TO BREAKER , LT LEAD & BUSH, LUCAR TERMINAL	1	Type A: Lucas 25D Distributors	CHF 25.20
14	515859	VACUUM UNIT	1	Type A: Lucas 25D Distributors - (40897/41155/41288)	CHF 65.90
14	RTC1425	VACUUM UNIT	1	Type A: Lucas 25D Distributors - (41339)	CHF 82.50
14	163-739	ADJUSTER KIT LUCAS 23D, 24D & 25D DISTRIBUTOR	1		CHF 32.90
15	13H9694	Distributor, 45D4, Lucas no. 41610, new	1	Type B: 45D4 Lucas Distributors	CHF 89.10
16	GDC136	DISTRIBUTOR CAP 4-CYL. (CONNECTIONS UPWARDS)	1	Type B: 45D4 Lucas Distributors	CHF 16.40
17	RTC315A	BRUSH & SPRING, HIGH TENSION	1	Type B: 45D4 Lucas Distributors	CHF 9.60
18	GRA2114	ROTOR ARM	1	Type B: 45D4 Lucas Distributors	CHF 9.20
18	GRA2114HQ	ROTOR ARM 45D HIGH QUALITY	1	Type B: 45D4 Lucas Distributors - high quality	CHF 23.70
19	GCS118	POINT SET, CONTACT BREAKER	1	Type B: 45D4 Lucas Distributors	CHF 12.65
20	GCS1002S	SCREW FOR POINTS 45D	1	Type B: 45D4 Lucas Distributors	CHF 3.55
21	GSC2109	CONDENSER	1	Type B: 45D4 Lucas Distributors	CHF 10.85
22	GSC1001S	SCREW, CONDENSER TO BASE PLATE	1	Type B: 45D4 Lucas Distributors	CHF 1.55
23	37H8297	USE RTC1190	1	Type B: 45D4 Lucas Distributors	availability request
23	RTC1190	DISTRIBUTOR BASE PLATE	1	Type B: 45D4 Lucas Distributors	availability request
24	37H8298	VACUUM UNIT	1	Type B: 45D4 Lucas Distributors (for 41427)	CHF 71.95
24	AAU2233	VACUUM UNIT	1	Type B: 45D4 Lucas Distributors (for 41429)	CHF 63.20
25	513682A	O RING	1	Type A: Lucas 25D Distributors	CHF 3.35
26	3H2138	CLAMP PLATE DISTRIBUTOR	1	Type A: Lucas 25D + Type B: 45D4 Lucas	CHF 38.35
27	GHF117	SCREW 1/4UNF X 3/4	2	Type A: Lucas 25D + Type B: 45D4 Lucas	CHF 1.45
28	GHF331	WASHER SPRING 1/4	2	Type A: Lucas 25D + Type B: 45D4 Lucas	CHF 0.55
29	GHF300	WASHER 1/4 X 1/2 OD	2	Type A: Lucas 25D + Type B: 45D4 Lucas	CHF 0.45
NI	222-555	ELEC IGN I 23/24/25D4 +VE	1	Ignitor I, for 25D4 distributor, positive earth	CHF 298.30
NI	222-405	ELEC IGN I 23/24/25D4 -VE	1	Ignitor I, for 25D4 distributor, negative earth	CHF 351.15
NI	143-323	ELECTRONIC IGNITION KIT, PERTRONIX IGNITOR II, 43/44/45D4, NEGATIVE EARTH	1	Ignitor II, for 45D4 distributor, negative earth	CHF 390.45

Orders will be shipped not before Monday 13th May 2024, thank you for your patience.

DISTRIBUTOR