CLUTCH & BRAKE MASTER CYLINDER

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.

Ill.no.	Partno.	Part	Quantity required	Info	Price
1	GMC109	MASTER CYLINDER, BRAKE & CLUTCH, 7/8", AP BRAKING	1	1500cc	CHF 250.95
1	17H7705	BRAKE MASTER CYLINDER	1	1600cc & MkII	CHF 237.15

Ill.no.	Partno.	Part	Quantity required	Info	Price
2	8G8224	MASTER CYL SEAL KIT .875 (7/8")	1		CHF 104.05
2	8G8224Z	SEAL KIT 7/8 DBL MC	1	aftermarket	CHF 22.85

Ill.no.	Partno.	Part	Quantity required	Info	Price
4	GCP132	CLUTCH PLATE 8" MGA1500EARLY	1	1500, 1600cc & MkII To (e) 3828 - 10 splines	CHF 107.15
4	GCP116	CLUTCH PLATE 23 SPLINES MGB	1	1600cc MkII From (e) 3829 - 23 splines	CHF 113.80
4	GCP116X	CLUTCH PLATE HEAVY DUTY 23 SPLINES, 8,5"	1	1600cc MkII From (e) 3829 - 23 splines, heavy duty	CHF 109.60

Ill.no.	Partno.	Part	Quantity required	Info	Price
5	GCC108BB	CLUTCH COVER	1	aftermarket	CHF 253.80

Ill.no.	Partno.	Part	Quantity required	Info	Price
6	GRB103	CLUTCH RELEASE BEARING	1		CHF 34.85

Ill.no.	Partno.	Part	Quantity required	Info	Price
7	GHF202	NUT PLAIN 3/8 UNF	1	1500cc To (e) 4524	CHF 0.60
7	GHF223	NUT 3/8 UNF NYLOC	1	From (e) 4525 through MkII	CHF 0.85

Ill.no.	Partno.	Part	Quantity required	Info	Price
8	11G3145	BOLT NCA	1	1500cc To (e) 4524	availability request
8	11G3196	PIVOTBOLT CLUTCH ARM	1	From (e) 4525 through MkII	CHF 14.70

Ill.no.	Partno.	Part	Quantity required	Info	Price
9	1G3653	LEVER CLUTCH RELEASE	1	1500cc To (e) 4524	availability request
9	11G3193SR	MGA CLUTCH LEVER SERVICEABLE REPLACEMENT	1	From (e) 4525 through MkII	availability request

Ill.no.	Partno.	Part	Quantity required	Info	Price
10	1G3582	BUSH CLUTCH FORK	1	1500cc To (e) 4524	CHF 9.10
10	11G3195	BUSH CLUTCH FORK	1	From (e) 4525 through MkII	CHF 3.20

Ill.no.	Partno.	Part	Quantity required	Info	Price
11	37H3048	WIPER MOTOR GEARBOX/GEAR 115°	2		CHF 88.75

Ill.no.	Partno.	Part	Quantity required	Info	Price
12	SH605071	SCREW 5/16" UNF X 7/8"	6		CHF 2.05

Ill.no.	Partno.	Part	Quantity required	Info	Price
14	GSY106	SLAVE CYLINDER CLUTCH OE	1		CHF 129.80
14	GSY106Z	SLAVE CYLINDER CLUTCH, AFTERMARKET	1		CHF 34.85

Ill.no.	Partno.	Part	Quantity required	Info	Price
15	GRK4016Z	REPAIR KIT, CLUTCH SLAVE CYLINDER, AFTERMARKET	1	1500cc	CHF 9.95

Ill.no.	Partno.	Part	Quantity required	Info	Price
16	11K8276	BANJO BOLT	1	1500cc To (c) 11767	CHF 18.20

Ill.no.	Partno.	Part	Quantity required	Info	Price
17	7H7456	COPPER WASHER 1/4BSP	1	1500cc To (c) 11767	CHF 5.10

Ill.no.	Partno.	Part	Quantity required	Info	Price
18	3H544	BANJO UNION	1	1500cc To (c) 11767	CHF 46.70

Ill.no.	Partno.	Part	Quantity required	Info	Price
19	3H550	COPPER WASHER 7/16X0.7	1	1500cc To (c) 11767	CHF 1.75

Ill.no.	Partno.	Part	Quantity required	Info	Price
20	BH506161	BOLT 3/8UNCX2IN	2		CHF 4.30

Ill.no.	Partno.	Part	Quantity required	Info	Price
21	GHF333	WASHER SPRING 3/8	2		CHF 0.95

Ill.no.	Partno.	Part	Quantity required	Info	Price
22	606733A	BLEED NIPPLE MGA	1		CHF 7.20

Ill.no.	Partno.	Part	Quantity required	Info	Price
23	CLZ515	CLEVIS PIN 5/16" x 1"	1		CHF 3.85

Ill.no.	Partno.	Part	Quantity required	Info	Price
24	13H21	PUSH ROD, CLUTCH SLAVE CYLINDER	1		CHF 11.05

Ill.no.	Partno.	Part	Quantity required	Info	Price
25	GHF301	WASHER 5/16 X 5/8 M8	1		CHF 0.40

Ill.no.	Partno.	Part	Quantity required	Info	Price
26	22H1337	GAITER C/FORK B>74	1		CHF 5.00

Ill.no.	Partno.	Part	Quantity required	Info	Price
27	GVP1001	CLUTCH HOSE	1	standard	CHF 24.20
27	TT3041	HOSE, SLAVE CYLINDER, STAINLESS STEEL BRAIDED	1	uprated	availability request

Ill.no.	Partno.	Part	Quantity required	Info	Price
28	3H550	COPPER WASHER 7/16X0.7	1		CHF 1.75

Ill.no.	Partno.	Part	Quantity required	Info	Price
29	WE600101	WASHER, SHAKEPROOF, 5/8"	1		CHF 1.85

Ill.no.	Partno.	Part	Quantity required	Info	Price
30	2K8686	NUT 15/16 BRAKE HOSE	1		CHF 3.75

Ill.no.	Partno.	Part	Quantity required	Info	Price
31	ACB8754	CLUTCH PIPE B>76&A	1	LHD only	CHF 58.15
31	AJD276	PIPE M/CYL TO HOSE	1	RHD only	CHF 54.90

Ill.no.	Partno.	Part	Quantity required	Info	Price
36	11K8276	BANJO BOLT	1		CHF 18.20

Ill.no.	Partno.	Part	Quantity required	Info	Price
37	7H7456	COPPER WASHER 1/4BSP	1		CHF 5.10

Ill.no.	Partno.	Part	Quantity required	Info	Price
38	3H544	BANJO UNION	1		CHF 46.70

Ill.no.	Partno.	Part	Quantity required	Info	Price
39	3H550	COPPER WASHER 7/16X0.7	1		CHF 1.75

Ill.no.	Partno.	Part	Quantity required	Info	Price
40	21K8564	C/PIPE ADAPTOR	1		CHF 21.75

Ill.no.	Partno.	Part	Quantity required	Info	Price
41	233220A	COPPER WASHER 3/8ID 5/8 OD	1		CHF 2.45

Ill.no.	Partno.	Part	Quantity required	Info	Price
44	AHH5841	PEDAL ASSY CLUTCH A	1	RHD From (c) 6110	CHF 163.70

Ill.no.	Partno.	Part	Quantity required	Info	Price
45	ACB8715	CLEVIS PIN	1		CHF 5.10

Ill.no.	Partno.	Part	Quantity required	Info	Price
46	AAA4129	BUSH PB BRAKE/CLUTCH	1		CHF 12.05

Ill.no.	Partno.	Part	Quantity required	Info	Price
47	AAA1628	SPRING RETURN PEDAL	1		CHF 3.30

Ill.no.	Partno.	Part	Quantity required	Info	Price
48	AHH5100	PEDAL RUBBER MGA&B	2		CHF 2.90

Ill.no.	Partno.	Part	Quantity required	Info	Price
49	GAC5056	CLUTCH TOOL MGA 1500	1	10 spline	CHF 16.30
49	GAC5057	CLUTCH TOOL A-B >65	1	23 spline	CHF 16.30

Ill.no.	Partno.	Part	Quantity required	Info	Price
1	GMC109	MASTER CYLINDER, BRAKE & CLUTCH, 7/8", AP BRAKING	1	1500cc	CHF 250.95
1	17H7705	BRAKE MASTER CYLINDER	1	1600cc & MkII	CHF 237.15
2	8G8224	MASTER CYL SEAL KIT .875 (7/8")	1		CHF 104.05
2	8G8224Z	SEAL KIT 7/8 DBL MC	1	aftermarket	CHF 22.85
4	GCP132	CLUTCH PLATE 8" MGA1500EARLY	1	1500, 1600cc & MkII To (e) 3828 - 10 splines	CHF 107.15
4	GCP116	CLUTCH PLATE 23 SPLINES MGB	1	1600cc MkII From (e) 3829 - 23 splines	CHF 113.80
4	GCP116X	CLUTCH PLATE HEAVY DUTY 23 SPLINES, 8,5"	1	1600cc MkII From (e) 3829 - 23 splines, heavy duty	CHF 109.60
5	GCC108BB	CLUTCH COVER	1	aftermarket	CHF 253.80
6	GRB103	CLUTCH RELEASE BEARING	1		CHF 34.85
7	GHF202	NUT PLAIN 3/8 UNF	1	1500cc To (e) 4524	CHF 0.60
7	GHF223	NUT 3/8 UNF NYLOC	1	From (e) 4525 through MkII	CHF 0.85
8	11G3145	BOLT NCA	1	1500cc To (e) 4524	availability request
8	11G3196	PIVOTBOLT CLUTCH ARM	1	From (e) 4525 through MkII	CHF 14.70
9	1G3653	LEVER CLUTCH RELEASE	1	1500cc To (e) 4524	availability request
9	11G3193SR	MGA CLUTCH LEVER SERVICEABLE REPLACEMENT	1	From (e) 4525 through MkII	availability request
10	1G3582	BUSH CLUTCH FORK	1	1500cc To (e) 4524	CHF 9.10
10	11G3195	BUSH CLUTCH FORK	1	From (e) 4525 through MkII	CHF 3.20
11	37H3048	WIPER MOTOR GEARBOX/GEAR 115°	2		CHF 88.75
12	SH605071	SCREW 5/16" UNF X 7/8"	6		CHF 2.05
14	GSY106	SLAVE CYLINDER CLUTCH OE	1		CHF 129.80
14	GSY106Z	SLAVE CYLINDER CLUTCH, AFTERMARKET	1		CHF 34.85
15	GRK4016Z	REPAIR KIT, CLUTCH SLAVE CYLINDER, AFTERMARKET	1	1500cc	CHF 9.95
16	11K8276	BANJO BOLT	1	1500cc To (c) 11767	CHF 18.20
17	7H7456	COPPER WASHER 1/4BSP	1	1500cc To (c) 11767	CHF 5.10
18	3H544	BANJO UNION	1	1500cc To (c) 11767	CHF 46.70
19	3H550	COPPER WASHER 7/16X0.7	1	1500cc To (c) 11767	CHF 1.75
20	BH506161	BOLT 3/8UNCX2IN	2		CHF 4.30
21	GHF333	WASHER SPRING 3/8	2		CHF 0.95
22	606733A	BLEED NIPPLE MGA	1		CHF 7.20
23	CLZ515	CLEVIS PIN 5/16" x 1"	1		CHF 3.85
24	13H21	PUSH ROD, CLUTCH SLAVE CYLINDER	1		CHF 11.05
25	GHF301	WASHER 5/16 X 5/8 M8	1		CHF 0.40
26	22H1337	GAITER C/FORK B>74	1		CHF 5.00
27	GVP1001	CLUTCH HOSE	1	standard	CHF 24.20
27	TT3041	HOSE, SLAVE CYLINDER, STAINLESS STEEL BRAIDED	1	uprated	availability request
28	3H550	COPPER WASHER 7/16X0.7	1		CHF 1.75
29	WE600101	WASHER, SHAKEPROOF, 5/8"	1		CHF 1.85
30	2K8686	NUT 15/16 BRAKE HOSE	1		CHF 3.75
31	ACB8754	CLUTCH PIPE B>76&A	1	LHD only	CHF 58.15
31	AJD276	PIPE M/CYL TO HOSE	1	RHD only	CHF 54.90
36	11K8276	BANJO BOLT	1		CHF 18.20
37	7H7456	COPPER WASHER 1/4BSP	1		CHF 5.10
38	3H544	BANJO UNION	1		CHF 46.70
39	3H550	COPPER WASHER 7/16X0.7	1		CHF 1.75
40	21K8564	C/PIPE ADAPTOR	1		CHF 21.75
41	233220A	COPPER WASHER 3/8ID 5/8 OD	1		CHF 2.45
44	AHH5841	PEDAL ASSY CLUTCH A	1	RHD From (c) 6110	CHF 163.70
45	ACB8715	CLEVIS PIN	1		CHF 5.10
46	AAA4129	BUSH PB BRAKE/CLUTCH	1		CHF 12.05
47	AAA1628	SPRING RETURN PEDAL	1		CHF 3.30
48	AHH5100	PEDAL RUBBER MGA&B	2		CHF 2.90
49	GAC5056	CLUTCH TOOL MGA 1500	1	10 spline	CHF 16.30
49	GAC5057	CLUTCH TOOL A-B >65	1	23 spline	CHF 16.30