HEATING & VENTILATION

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. all dash 11 knobs	CHF 88.10

Ill.no.	Partno.	Part	Quantity required	Info	Price
1	CRCP302	PLATE SMITHS HEATER, RIVETED	1		CHF 8.10

Ill.no.	Partno.	Part	Quantity required	Info	Price
2	CRCP303	PLATE HEATER BOX, DRAIN WARNING	1		CHF 10.10

Ill.no.	Partno.	Part	Quantity required	Info	Price
3	37H7913	HEATER MOTOR	1		CHF 112.60

Ill.no.	Partno.	Part	Quantity required	Info	Price
4	37H7914	HEATER MATRIX	1		CHF 120.35

Ill.no.	Partno.	Part	Quantity required	Info	Price
5	7H1993	GROMMET 5/8 X 1/2 X 1/32	2		CHF 2.85

Ill.no.	Partno.	Part	Quantity required	Info	Price
7	17H1595	CLIP, HEATER BOX, 3"	4		CHF 6.25

Ill.no.	Partno.	Part	Quantity required	Info	Price
8	515825	FAN, HEATER, PLASTIC	1		CHF 25.35

Ill.no.	Partno.	Part	Quantity required	Info	Price
9	27H1193	CABLE CLAMP, OUTER	3		CHF 5.20

Ill.no.	Partno.	Part	Quantity required	Info	Price
10	17H518	CONTROL PANEL, HEATER	1		CHF 30.00

Ill.no.	Partno.	Part	Quantity required	Info	Price
11	27H1208K	BOLT & SPACER	2		CHF 16.90

Ill.no.	Partno.	Part	Quantity required	Info	Price
12	7H1985	HEATING CONTROL SWITCH	1		CHF 72.25

Ill.no.	Partno.	Part	Quantity required	Info	Price
13	17H490	CONTROL KNOB HEATING/VENTILATION, BLACK, KNURLED, " B "	1	Included in Dash Knob Set GKS2001X, see "not illustrated articles" in illustration right bottom	CHF 12.65

Ill.no.	Partno.	Part	Quantity required	Info	Price
14	611284	CABLE HEATER	1	less knob	CHF 75.15

Ill.no.	Partno.	Part	Quantity required	Info	Price
15	612262	CABLE, HEATER, AIR CONTROL (SHORT)	1	less knob	CHF 72.25

Ill.no.	Partno.	Part	Quantity required	Info	Price
16	17H827	KNOB, AIR DISTRIBUTION	2	Included in Dash Knob Set GKS2001X, see "not illustrated articles" in illustration right bottom	CHF 12.05

Ill.no.	Partno.	Part	Quantity required	Info	Price
17	AHH5426	OUTLET DEMISTER TUBE	2		CHF 32.40

Ill.no.	Partno.	Part	Quantity required	Info	Price
18	AHH5427	HOSE-DEMIST 1.5X14IN	1		CHF 21.90

Ill.no.	Partno.	Part	Quantity required	Info	Price
19	AHH5428	HOSE-DEMIST 1.5X25IN	1		CHF 35.10

Ill.no.	Partno.	Part	Quantity required	Info	Price
20	AHH5394	HOSE-CARB INTAKE MGA	2		CHF 41.30

Ill.no.	Partno.	Part	Quantity required	Info	Price
21	13H58X	HOSE, HEATER OR FRESH AIR INTAKE 4X30"	1	alternative to AHH5430	CHF 63.50

Ill.no.	Partno.	Part	Quantity required	Info	Price
22	14G800	BAND WIRE AIR HOSE	4		CHF 13.45

Ill.no.	Partno.	Part	Quantity required	Info	Price
23	AHH5714	CLIP AIR HOSE EARLY	3		CHF 8.40

Ill.no.	Partno.	Part	Quantity required	Info	Price
25	BHA5298	VALVE HEATER OE TOOLING MGB	1		CHF 48.35

Ill.no.	Partno.	Part	Quantity required	Info	Price
26	12H3868	GASKET HEATER TAP/HEAD	1		CHF 1.10
26	AHH5434K	3 PIECE HOSE SET MGA	1		CHF 32.90

Ill.no.	Partno.	Part	Quantity required	Info	Price
27	AHH5434	HOSE WATER RETURN	1		CHF 2.05
27	AHH5434X	HOSE HTR RTN SHT SIL MGA	1	silicone	CHF 3.80

Ill.no.	Partno.	Part	Quantity required	Info	Price
28	AHH5437	HOSE 1/2 X 12IN	1		CHF 9.35
28	AHH5437X	HOSE HTR RTN LONG SIL MGA	1	silicone	CHF 18.20

Ill.no.	Partno.	Part	Quantity required	Info	Price
29	AHH5438	HOSE-HEATER MGA	1		CHF 10.30
29	AHH5438X	HOSE HTR FEED SIL MGA	1	silicone	CHF 17.10

Ill.no.	Partno.	Part	Quantity required	Info	Price
30	AHH5435	HEATER PIPE A&B >68	1		CHF 52.30

Ill.no.	Partno.	Part	Quantity required	Info	Price
31	CS4012	WIRECLIP .625-.75IN	6	alternatives	availability request (add quantity to basket, offer follows)
31	GHC11020	HOSE CLIP 13-20MM	6	alternatives	CHF 6.00

Ill.no.	Partno.	Part	Quantity required	Info	Price
32	CP110125	P CLIP 1/2 DIAX13/32	2		CHF 3.30

Ill.no.	Partno.	Part	Quantity required	Info	Price
33	24G1482K	TRUNNION KIT, INNER CABLE TO CONTROL ROD	4		CHF 3.75

Ill.no.	Partno.	Part	Quantity required	Info	Price
36	BHH679	CABLE ASSY METAL OUTER	1		CHF 9.35

Ill.no.	Partno.	Part	Quantity required	Info	Price
37	AMK8847	ADAPTOR WATER TAKE OFF	1		CHF 31.75

Ill.no.	Partno.	Part	Quantity required	Info	Price
38	232043A	COPPER WASHER 13/16X5/8	1		CHF 2.90

Ill.no.	Partno.	Part	Quantity required	Info	Price
42	AHH5429	ADAPTOR	2		CHF 19.10

Ill.no.	Partno.	Part	Quantity required	Info	Price
43	AHH5253	SEAL HEATER BOX	1		CHF 19.35

Ill.no.	Partno.	Part	Quantity required	Info	Price
44	AHH5252	BLANKING PLATE	1	when heater is not fitted	CHF 85.30

Ill.no.	Partno.	Part	Quantity required	Info	Price
45	AHH5423	MGA HEATER BOX ASSY NOT TWIN CAM	1		availability request (add quantity to basket, offer follows)

Ill.no.	Partno.	Part	Quantity required	Info	Price
46	7H1995	VENT, HEATER OUTLET	1		CHF 96.10

Ill.no.	Partno.	Part	Quantity required	Info	Price
47	AB606021	SCREW PANHD NO6X1/4	4		CHF 1.30

Ill.no.	Partno.	Part	Quantity required	Info	Price
1	CRCP302	PLATE SMITHS HEATER, RIVETED	1		CHF 8.10
2	CRCP303	PLATE HEATER BOX, DRAIN WARNING	1		CHF 10.10
3	37H7913	HEATER MOTOR	1		CHF 112.60
4	37H7914	HEATER MATRIX	1		CHF 120.35
5	7H1993	GROMMET 5/8 X 1/2 X 1/32	2		CHF 2.85
7	17H1595	CLIP, HEATER BOX, 3"	4		CHF 6.25
8	515825	FAN, HEATER, PLASTIC	1		CHF 25.35
9	27H1193	CABLE CLAMP, OUTER	3		CHF 5.20
10	17H518	CONTROL PANEL, HEATER	1		CHF 30.00
11	27H1208K	BOLT & SPACER	2		CHF 16.90
12	7H1985	HEATING CONTROL SWITCH	1		CHF 72.25
13	17H490	CONTROL KNOB HEATING/VENTILATION, BLACK, KNURLED, " B "	1	Included in Dash Knob Set GKS2001X, see "not illustrated articles" in illustration right bottom	CHF 12.65
14	611284	CABLE HEATER	1	less knob	CHF 75.15
15	612262	CABLE, HEATER, AIR CONTROL (SHORT)	1	less knob	CHF 72.25
16	17H827	KNOB, AIR DISTRIBUTION	2	Included in Dash Knob Set GKS2001X, see "not illustrated articles" in illustration right bottom	CHF 12.05
NI	GKS2001X	SET OF CONTROL KNOBS	1	Incl. all dash 11 knobs	CHF 88.10
17	AHH5426	OUTLET DEMISTER TUBE	2		CHF 32.40
18	AHH5427	HOSE-DEMIST 1.5X14IN	1		CHF 21.90
19	AHH5428	HOSE-DEMIST 1.5X25IN	1		CHF 35.10
20	AHH5394	HOSE-CARB INTAKE MGA	2		CHF 41.30
21	13H58X	HOSE, HEATER OR FRESH AIR INTAKE 4X30"	1	alternative to AHH5430	CHF 63.50
22	14G800	BAND WIRE AIR HOSE	4		CHF 13.45
23	AHH5714	CLIP AIR HOSE EARLY	3		CHF 8.40
25	BHA5298	VALVE HEATER OE TOOLING MGB	1		CHF 48.35
26	12H3868	GASKET HEATER TAP/HEAD	1		CHF 1.10
26	AHH5434K	3 PIECE HOSE SET MGA	1		CHF 32.90
27	AHH5434	HOSE WATER RETURN	1		CHF 2.05
27	AHH5434X	HOSE HTR RTN SHT SIL MGA	1	silicone	CHF 3.80
28	AHH5437	HOSE 1/2 X 12IN	1		CHF 9.35
28	AHH5437X	HOSE HTR RTN LONG SIL MGA	1	silicone	CHF 18.20
29	AHH5438	HOSE-HEATER MGA	1		CHF 10.30
29	AHH5438X	HOSE HTR FEED SIL MGA	1	silicone	CHF 17.10
30	AHH5435	HEATER PIPE A&B >68	1		CHF 52.30
31	CS4012	WIRECLIP .625-.75IN	6	alternatives	availability request (add quantity to basket, offer follows)
31	GHC11020	HOSE CLIP 13-20MM	6	alternatives	CHF 6.00
32	CP110125	P CLIP 1/2 DIAX13/32	2		CHF 3.30
33	24G1482K	TRUNNION KIT, INNER CABLE TO CONTROL ROD	4		CHF 3.75
36	BHH679	CABLE ASSY METAL OUTER	1		CHF 9.35
37	AMK8847	ADAPTOR WATER TAKE OFF	1		CHF 31.75
38	232043A	COPPER WASHER 13/16X5/8	1		CHF 2.90
42	AHH5429	ADAPTOR	2		CHF 19.10
43	AHH5253	SEAL HEATER BOX	1		CHF 19.35
44	AHH5252	BLANKING PLATE	1	when heater is not fitted	CHF 85.30
45	AHH5423	MGA HEATER BOX ASSY NOT TWIN CAM	1		availability request (add quantity to basket, offer follows)
46	7H1995	VENT, HEATER OUTLET	1		CHF 96.10
47	AB606021	SCREW PANHD NO6X1/4	4		CHF 1.30