HORNS, RELAYS & SWITCHES

CAR IDENTIFICATION MG A

Year	Model	Numbers manufactured
September 1955 to May 1959	MGA 1500cc	10101 to 68,850
September 1958 to June 1960	MGA Twin Cam	501 to 2611
May 1959 to April 1961	MGA 1600cc	68,851 to 100,351
April 1961 to June 1962	MGA 1600cc MkII	100,352 to 109,070

BMC 'B' Series Engine Use(1953 to 1981)

Model	cc	Prefix	BHP/RPM	Torque
M.G. MGA	1489	BP15GB,15GB	68/5200	82
M.G. MGA	1489	15GD	72/5500	85
M.G. MGA 1600	1588	16GA	80/5600	87
MGA Twin Cam	1588	BC16GB	108/6700
M.G. MGA 1600 Mk2	1622	16GC	90/5500 97

MGA Serial Numbers

Engine Number

The engine number is stamped on a plate secured to the righthand side of the cylinder block...or it is stamped on a plate secured to the rear of the engine behind the cylinder block. (Twin Cam)

Car Number

The car number is stamped on a plate secured to the top lefthand side of the dash panel

Gearbox Number

The gearbox number is stamped on the top of the gearbox casing adjacent to the dipstick

Body Number

The body number is stamped on a plate secured to the bulkhead between the righthand bonnet hinge and the fuse block.

Rear Axle Number

The rear axle No is stamped on the front of the axle tube on the LH side next to the spring seat.

Identifying the MGA

There are only five variations of the MGA. The 1500cc, 1600cc, MkII, Twin Cam and 1600cc MkII De luxe. The Coupés were a variation of the Roadster and were not differentiated by the factory numbering system as to body style. The Twin Cam, a major undertaking at the time of its introduction, was identified separately while the De luxe, the most elusive of MGA models, was not distinctly identified. There are reliable production figures for all models except the De luxe.

The three major MGA models may be readily identified by their tail-lamp and grille configurations as well as their engine displacement.

A 1500cc will have the familiar single Lucas tail lamp, the flush style grille and no shroud or boot lid emblems. Four-wheel drum brakes were fitted to this model only.

Very early 1500ccs had different style gauge faces, an example of which can be found in the factory service manual and drivers handbook illustrations. The door rails on the first few cars were entirely of wood as were the cockpit rear corners. There are few of these seen today. The 1500's did not have the starter hump on the passenger toe board or the windscreen mounted hood clamp. The turn indicators were switched through a relay.

1600cc is differentiated by the dual rear lamp with separate turn lamps, larger round parking lamps with flat lenses and a '1600cc' marker on the cowl and rear boot lid. Disc brakes on the front greatly improved stopping power. The starter position was moved with the resulting hump on the passenger toe board.

The 1600cc MkII received the closest thing to a face lift an MGA ever got. The famous flat grille was replaced with the 'pre-crushed' version. The MkI Mini rear lamps appeared horizontally below the boot lid and the vinyl covered dash and cowl and 1600cc MkII badges were added. The chrome trim and dash escutcheon from the Coupé finished off the dash. Seat belt anchors were added to the chassis. 1600cc MkII De luxe cars used the Twin Cam chassis with the push rod 1622cc engine. Check all parts carefully, as MGA's have not always enjoyed the respect they do now, and parts have been freely exchanged with little regard for originality. When re-wiring your car, be sure to order the loom that fits your body type, not engine type.

unillustrated articles

Ill.no.	Partno.	Part	Quantity required	Info	Price
NI	GKS2001X	SET OF CONTROL KNOBS	1	incl. 2, 4, 6, 8, 10, 15	CHF 88.10

Ill.no.	Partno.	Part	Quantity required	Info	Price
1	2H4841	PULL SWITCH REAR WINDOW, WIPER, ETC......SCREW CONNECTIONS	1		CHF 35.20

Ill.no.	Partno.	Part	Quantity required	Info	Price
2	AHH5362	LIGHT CONTROL KNOB, WITHOUT INSCRIPTION	1	included in Set GKS2001X - see not illustrated articles	CHF 12.65

Ill.no.	Partno.	Part	Quantity required	Info	Price
3	2H4841	PULL SWITCH REAR WINDOW, WIPER, ETC......SCREW CONNECTIONS	1	blank knob	CHF 35.20

Ill.no.	Partno.	Part	Quantity required	Info	Price
4	AHH5364	CONTROL KNOB WIPER, WITH INSCRIPTION " W "	1	with letter "W" - included in Set GKS2001X - see not illustrated articles	CHF 12.65

Ill.no.	Partno.	Part	Quantity required	Info	Price
5	3H3098	LIGHT PULL/PUSH SWITCH	1		CHF 82.35

Ill.no.	Partno.	Part	Quantity required	Info	Price
6	AHH5360	CONTROL KNOB LIGHT WITH INSCRIPTION " L "	1	with letter 'L' - included in Set GKS2001X - see not illustrated articles	CHF 12.65

Ill.no.	Partno.	Part	Quantity required	Info	Price
7	2H4841	PULL SWITCH REAR WINDOW, WIPER, ETC......SCREW CONNECTIONS	1	blank knob	CHF 35.20

Ill.no.	Partno.	Part	Quantity required	Info	Price
8	AHH5366	CONTROL KNOB FOG LIGHTS, WITH INSCRIPTION " F "	1	with letter 'F' - included in Set GKS2001X - see not illustrated articles	CHF 12.65

Ill.no.	Partno.	Part	Quantity required	Info	Price
9	BHA4278	RHEOSTAT SWITCH INSTRUMENT LIGHTING	1		CHF 60.55

Ill.no.	Partno.	Part	Quantity required	Info	Price
10	AHH5368	CONTROL KNOB ILLUMINATION CONTROLLER INSTRUMENTS WITH INSCRIPTION " P AND ARROW "	1	with letter 'P' - included in Set GKS2001X - see not illustrated articles	CHF 12.65

Ill.no.	Partno.	Part	Quantity required	Info	Price
13	AMK5607	INDICATOR SWITCH	1		CHF 145.20

Ill.no.	Partno.	Part	Quantity required	Info	Price
14	17H5483	SCREW FOR INDICATOR SWITCH HANDLE 27H5511	1		CHF 2.75

Ill.no.	Partno.	Part	Quantity required	Info	Price
15	11K9308	LEVER FOR INDICATOR SWITCH AMK5607	1		CHF 14.00
15	27H5511	OPERATING HANDLE FOR INDICATOR SWITCH (ONE-SIDED TOGGLE HANDLE)	1	included in Set GKS2001X - see not illustrated articles	CHF 20.40

Ill.no.	Partno.	Part	Quantity required	Info	Price
16	107936	IGNITION LOCK WITHOUT CYLINDER (3 PLUG CONNECTIONS)	1		CHF 54.25

Ill.no.	Partno.	Part	Quantity required	Info	Price
17	24G1345	CYLINDER IN IGNITION LOCK WITH KEYS	1		CHF 23.10
17	24G1345Z	KEY+BARREL NOT OE	1	aftermarket	CHF 17.80
17	17H2475	KEY BLANK FS	a/r	FS Series	CHF 7.20

Ill.no.	Partno.	Part	Quantity required	Info	Price
18	11G2007	FOOT PRESSURE SWITCH LIGHT, CONNECTIONS ANGLED	1		CHF 79.20

Ill.no.	Partno.	Part	Quantity required	Info	Price
19	AHH5347	DIPSWITCH BRACKET	1	1500cc RHD	CHF 44.35
19	AHH5780	DIPSWITCH BRACKET RHD	1	1600cc RHD	CHF 76.40

Ill.no.	Partno.	Part	Quantity required	Info	Price
20	13H2303	BRAKE LIGHT SWITCH , HYDRAULIC, 2 SCREW CONNECTIONS (CONICAL 10-10.1)	1	OE type screw	CHF 22.25
20	C16062A	BRAKE LIGHT SWITCH (HYDR.), 2 PLUG-IN CONNECTORS. (CONICAL 10-10.2/10.4 LONG)	1	alternative Lucar	CHF 12.55

Ill.no.	Partno.	Part	Quantity required	Info	Price
22	2H3383	PRESSURE SWITCH HORN	1		CHF 44.95

Ill.no.	Partno.	Part	Quantity required	Info	Price
23	AHH5287	BRACKET HORN BUTTON	1		CHF 20.20

Ill.no.	Partno.	Part	Quantity required	Info	Price
25	3H949	STARTER SWITCH	1		CHF 61.65

Ill.no.	Partno.	Part	Quantity required	Info	Price
26	8G548	RUBBER CAPS BATTERY CONNECTIONS	2		CHF 4.60

Ill.no.	Partno.	Part	Quantity required	Info	Price
27	AHH5002X	BRACKET START SWITCH	1	welds to chassis	CHF 32.15

Ill.no.	Partno.	Part	Quantity required	Info	Price
28	AHH5327	STARTER CABLE RHD	1	RHD	CHF 39.70
28	AHH5330	STARTER CABLE	1	LHD	CHF 39.70

Ill.no.	Partno.	Part	Quantity required	Info	Price
29	3H950	CABLE COUPLING TO STARTER SWITCH	1		CHF 27.10

Ill.no.	Partno.	Part	Quantity required	Info	Price
30	BHA4283	NUMBERPLATE LAMP COMPL. + INTERIOR LIGHT (HEMISPHERE), L534, L53705	1		CHF 52.50

Ill.no.	Partno.	Part	Quantity required	Info	Price
31	37H5426	NUMBERPLATE + INTERIOR LAMP, CAP CHROME, L534, L574825	1		CHF 21.70

Ill.no.	Partno.	Part	Quantity required	Info	Price
32	606078A	NO PLATE LIGHT LENS	1		CHF 12.90

Ill.no.	Partno.	Part	Quantity required	Info	Price
33	GLB987	BULB 12V 2.2W	1		CHF 2.50

Ill.no.	Partno.	Part	Quantity required	Info	Price
34	17H5302	NUM.+ INTERIOR LIGHT GASKET, L534, L573916	1		CHF 6.15

Ill.no.	Partno.	Part	Quantity required	Info	Price
35	37H5182	CONTROL LAMP (SET WITH VARIOUS COLOUR INSERTS, RED, BLUE, GREEN)	1		CHF 62.00

Ill.no.	Partno.	Part	Quantity required	Info	Price
36	AJG5046	LENS CONTROL LAMP	1		CHF 12.60

Ill.no.	Partno.	Part	Quantity required	Info	Price
37	AAA3763	WASHER INDICATOR CONTROL LAMP	1		CHF 3.70

Ill.no.	Partno.	Part	Quantity required	Info	Price
38	GLB987	BULB 12V 2.2W	1		CHF 2.50

Ill.no.	Partno.	Part	Quantity required	Info	Price
39	1G2613	FUSE BOX (HEXAGONAL)	1		CHF 49.75

Ill.no.	Partno.	Part	Quantity required	Info	Price
40	GFS35X	SINGLE 35AMP GLASS FUSE	a/r		CHF 1.40
40	GFS50X	ONE 50AMP GLASS FUSE	a/r		CHF 1.40

Ill.no.	Partno.	Part	Quantity required	Info	Price
42	3H1835	REGULATOR WITH 5 SCREW TERMINALS	1		CHF 87.70

Ill.no.	Partno.	Part	Quantity required	Info	Price
43	7H5522	COVER FOR CONTROLLER 3H1835 (AND CLAMPING BRACKET)	1		availability request

Ill.no.	Partno.	Part	Quantity required	Info	Price
45	1B9007/8	HORN SET 2 PIECES	1	high & low note	CHF 127.70
45	1B9007	HORN LOW NOTE	1	Lucas replacement, standard	CHF 84.50
45	1B9008	HORN HIGH NOTE	1	Lucas replacement, optional	CHF 84.50

Ill.no.	Partno.	Part	Quantity required	Info	Price
46	160-200	BRACKET HORN MOUNTING	a/r		CHF 44.50

Ill.no.	Partno.	Part	Quantity required	Info	Price
47	AAA2107	HORN BRACKET LH	1	optional	CHF 66.20
47	AAA2088	HORN BRACKET RH	1	standard, (illustrated)	CHF 66.20

Ill.no.	Partno.	Part	Quantity required	Info	Price
48	GFU2101	INDICATOR RELAY ROUND, 3 CONNECTIONS	1	original, Lucas	CHF 18.15

Ill.no.	Partno.	Part	Quantity required	Info	Price
49	3H1454	INDICATOR RELAY (LARGE WITH 2X4 CONNECTIONS SCREWED)	1	1500cc & early Twin Cam	CHF 114.00

Ill.no.	Partno.	Part	Quantity required	Info	Price
1	2H4841	PULL SWITCH REAR WINDOW, WIPER, ETC......SCREW CONNECTIONS	1		CHF 35.20
2	AHH5362	LIGHT CONTROL KNOB, WITHOUT INSCRIPTION	1	included in Set GKS2001X - see not illustrated articles	CHF 12.65
3	2H4841	PULL SWITCH REAR WINDOW, WIPER, ETC......SCREW CONNECTIONS	1	blank knob	CHF 35.20
4	AHH5364	CONTROL KNOB WIPER, WITH INSCRIPTION " W "	1	with letter "W" - included in Set GKS2001X - see not illustrated articles	CHF 12.65
5	3H3098	LIGHT PULL/PUSH SWITCH	1		CHF 82.35
6	AHH5360	CONTROL KNOB LIGHT WITH INSCRIPTION " L "	1	with letter 'L' - included in Set GKS2001X - see not illustrated articles	CHF 12.65
7	2H4841	PULL SWITCH REAR WINDOW, WIPER, ETC......SCREW CONNECTIONS	1	blank knob	CHF 35.20
8	AHH5366	CONTROL KNOB FOG LIGHTS, WITH INSCRIPTION " F "	1	with letter 'F' - included in Set GKS2001X - see not illustrated articles	CHF 12.65
9	BHA4278	RHEOSTAT SWITCH INSTRUMENT LIGHTING	1		CHF 60.55
10	AHH5368	CONTROL KNOB ILLUMINATION CONTROLLER INSTRUMENTS WITH INSCRIPTION " P AND ARROW "	1	with letter 'P' - included in Set GKS2001X - see not illustrated articles	CHF 12.65
13	AMK5607	INDICATOR SWITCH	1		CHF 145.20
14	17H5483	SCREW FOR INDICATOR SWITCH HANDLE 27H5511	1		CHF 2.75
15	11K9308	LEVER FOR INDICATOR SWITCH AMK5607	1		CHF 14.00
15	27H5511	OPERATING HANDLE FOR INDICATOR SWITCH (ONE-SIDED TOGGLE HANDLE)	1	included in Set GKS2001X - see not illustrated articles	CHF 20.40
16	107936	IGNITION LOCK WITHOUT CYLINDER (3 PLUG CONNECTIONS)	1		CHF 54.25
17	24G1345	CYLINDER IN IGNITION LOCK WITH KEYS	1		CHF 23.10
17	24G1345Z	KEY+BARREL NOT OE	1	aftermarket	CHF 17.80
17	17H2475	KEY BLANK FS	a/r	FS Series	CHF 7.20
18	11G2007	FOOT PRESSURE SWITCH LIGHT, CONNECTIONS ANGLED	1		CHF 79.20
19	AHH5347	DIPSWITCH BRACKET	1	1500cc RHD	CHF 44.35
19	AHH5780	DIPSWITCH BRACKET RHD	1	1600cc RHD	CHF 76.40
20	13H2303	BRAKE LIGHT SWITCH , HYDRAULIC, 2 SCREW CONNECTIONS (CONICAL 10-10.1)	1	OE type screw	CHF 22.25
20	C16062A	BRAKE LIGHT SWITCH (HYDR.), 2 PLUG-IN CONNECTORS. (CONICAL 10-10.2/10.4 LONG)	1	alternative Lucar	CHF 12.55
NI	GKS2001X	SET OF CONTROL KNOBS	1	incl. 2, 4, 6, 8, 10, 15	CHF 88.10
22	2H3383	PRESSURE SWITCH HORN	1		CHF 44.95
23	AHH5287	BRACKET HORN BUTTON	1		CHF 20.20
25	3H949	STARTER SWITCH	1		CHF 61.65
26	8G548	RUBBER CAPS BATTERY CONNECTIONS	2		CHF 4.60
27	AHH5002X	BRACKET START SWITCH	1	welds to chassis	CHF 32.15
28	AHH5327	STARTER CABLE RHD	1	RHD	CHF 39.70
28	AHH5330	STARTER CABLE	1	LHD	CHF 39.70
29	3H950	CABLE COUPLING TO STARTER SWITCH	1		CHF 27.10
30	BHA4283	NUMBERPLATE LAMP COMPL. + INTERIOR LIGHT (HEMISPHERE), L534, L53705	1		CHF 52.50
31	37H5426	NUMBERPLATE + INTERIOR LAMP, CAP CHROME, L534, L574825	1		CHF 21.70
32	606078A	NO PLATE LIGHT LENS	1		CHF 12.90
33	GLB987	BULB 12V 2.2W	1		CHF 2.50
34	17H5302	NUM.+ INTERIOR LIGHT GASKET, L534, L573916	1		CHF 6.15
35	37H5182	CONTROL LAMP (SET WITH VARIOUS COLOUR INSERTS, RED, BLUE, GREEN)	1		CHF 62.00
36	AJG5046	LENS CONTROL LAMP	1		CHF 12.60
37	AAA3763	WASHER INDICATOR CONTROL LAMP	1		CHF 3.70
38	GLB987	BULB 12V 2.2W	1		CHF 2.50
39	1G2613	FUSE BOX (HEXAGONAL)	1		CHF 49.75
40	GFS35X	SINGLE 35AMP GLASS FUSE	a/r		CHF 1.40
40	GFS50X	ONE 50AMP GLASS FUSE	a/r		CHF 1.40
42	3H1835	REGULATOR WITH 5 SCREW TERMINALS	1		CHF 87.70
43	7H5522	COVER FOR CONTROLLER 3H1835 (AND CLAMPING BRACKET)	1		availability request
45	1B9007/8	HORN SET 2 PIECES	1	high & low note	CHF 127.70
45	1B9007	HORN LOW NOTE	1	Lucas replacement, standard	CHF 84.50
45	1B9008	HORN HIGH NOTE	1	Lucas replacement, optional	CHF 84.50
46	160-200	BRACKET HORN MOUNTING	a/r		CHF 44.50
47	AAA2107	HORN BRACKET LH	1	optional	CHF 66.20
47	AAA2088	HORN BRACKET RH	1	standard, (illustrated)	CHF 66.20
48	GFU2101	INDICATOR RELAY ROUND, 3 CONNECTIONS	1	original, Lucas	CHF 18.15
49	3H1454	INDICATOR RELAY (LARGE WITH 2X4 CONNECTIONS SCREWED)	1	1500cc & early Twin Cam	CHF 114.00