TR4 - TR4A - REGULATORS, HORNS, DIPPER- & INHIBITOR SWITCHES, RELAY

CAR IDENTIFICATION

When ordering parts, it is essential that you identify your car exactly, by model year and serial number. Since many part changes were made during model years, the commission 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 record the applicable numbers from your car. Using these numbers is the best way to ensure that you order and receive the correct parts. Wherever possible, we have listed part applications by commission number (e), body number (b) or gearbox (g). For more information on these numbers and years, see the production data below.

Year	Model	Numbers manufactured
		From	To
1953	TR2	TS1 (Aug)	TS302
1954		TS303	TS5192
1955		TS8637 (Sept)	TS9665
1955	TR3	TS8637 (Sept)	TS9665
1956		TS9666	TS14998
1957		TS14999	TS22013 (Sept)
1957	TR3A	TS22014 (Sept)	TS25632
1958		TS25633	TS41629
1959		TS41630	TS65123
1960		TS65124	TS82029
1961		TS82030	TS82346 (Oct)
1961	TR4	CT1 (Aug)	CT2470 (approx.)
	TR3B*	TSF1 (Mar)	TSF530 (Sept)
1962	TR3B*	TCF1	TCF2804 (Oct)
1962	TR4	CT2471 (approx.)	CT18403 (approx.)
1963		CT18404 (approx.)	CT28485 (approx.)
1964		CT28486 (approx.)	CT40000 (approx.)
1965		CT40001 (approx.)	CT40304 (approx.)
1965	TR4A	CTC50001	CTC63736 (approx.)
1966		CTC63737 (approx.)	CTC75000 (approx.)
		CTC75001 (approx.)	CTC78684 (approx.)

*A Note on TR3B's

The TR3B was a very interesting and rare car. Declining sales in the late 50's and early 60's of the TR3 series had led Triumph to carry out a major re-design of the car, which became known as the TR4. It was based on the TR3 running gear but had a Michelotti designed body with wind-up windows and other features designed to improve comfort. The reaction to the TR4 in America was, initially, less than favourable and there was a minor panic back in Coventry where the feeling existed that a mistake had been made in introducing the TR4, and, it was felt essential that the TR3 was 're-introduced'. The car that was re-introduced was the TR3B and in its most basic form the same as the TR3A. There were two series of commission numbers (TSF and TCF), we believe the TSF series was for the 1991cc (83mm) engine and the TCF series for the 2138cc (86mm) engine. Both vehicles were fitted with the later TR4 all-synchromesh gearbox. These are the only distinguishing features that all experts appear to agree on. Unless otherwise specified in the text, all details of the TR3B can be considered to be the same as the post T60001 TR3A.

Location of Serial Numbers

TR2-3B Commission Number

This number is stamped on a plate which is riveted to the righthand bulkhead panel.

TR4-4A Commission Number

This number is stamped on a plate which is riveted to the lefthand bulkhead panel.

TR2-4A Gearbox Number

This number is stamped on the lefthand side of the gearbox casing.

TR2-4A Engine Number

The engine number is stamped on the lefthand side of the cylinder block.

Supersession of Parts

For those of you in possession of original Triumph parts books you may have information which conflicts with that given in the original book. This is usually because the part has been 'superseded' because of some change in specification. For example XKC510 is the lefthand A-post. It used to be 813100 (and the righthand is still 813101), but when the TR6 USA specification cars had an audible buzzer fitted to advise owners that they had opened their door and left the keys in the ignition, it required an extra hole in the A-post to sense the door being opened. Hence 813100 with one hole for a courtesy light becomes XKC510 with two holes. There are many other examples where our Research & Development Department staff find old Austin/Morris saloon car parts that 'will do' to replace 'no longer available' TR parts. These often utilise different part numbers to those shown in the original Triumph parts book.

Model	COMMISSION No.	CHANGES
TR2	TS1	TR2 introduced.
	TS1307	MGA, Frogeye, London Taxi type stop/tail lamps introduced.
	TS4002	Outer sills and 'short door' fitted.
	TS4239	Dzus fasteners replace cables to open bonnet.
	TS6157	Vent lid introduced.
TR3	TS8637	TR3 introduced, 'egg-box' grille fitted.
	TS12568	Windscreen wiper motor moved from righthand to the lefthand side of bulkhead.
	TS13046	Girling hydraulics introduced. TR3 becomes the first mass produced car with disc Brakes fitted as standard.
TR3A	TS22014	Window grille, exterior door handles, different front bumper & overrider design.
	TS28826	Dzus fasteners used on sidescreens.
	TS41878	Colour scheme of front badge changes from red and black to blue and white.
	TS50001	Starter motor changed.
	TS60001	Major body re-design. 'Raised' hinge mounting points, squared rear floor. One piece boot floor fitted. Windscreen stanchions held on by screws in place of Dzus fasteners.
	TS83572	Last TR3A
TR3B	TSF1	TR3B introduced with 1991cc engine and 4 synchro' gearbox.
	TCF1	TR3B introduced with 2138cc engine and 4 synchro' gearbox.
	TCF2804	Last TR3B
TR4	CT1	First TR4 introduced.
	CT6636	Re-designed front suspension with 3* castor.
	CT16801	Stromberg carburettors introduced as mixed fitment.
	CT23383	Deep dish rear springs introduced.
	CT40304	Last TR4 produced.
TR4A	CTC50001	Introduction of the first IRS TR4A, (Solid axle TR4A's Were prefixed 'CT' beginning at CT50001)
	CTC61291	Stromberg carburettors replaced by HS6 SU's.
	CT70000 (approx.)	Cross box silencer introduced
	CT787684	Last of the TR4A rolled of the production line (10th July 1967).

TR4 - TR4A - REGULATORS, HORNS, DIPPER- & INHIBITOR SWITCHES, RELAYS

Ill.no.	Partno.	Part	Quantity required	Info	Price
1	GGE165	HORN LOW NOTE, TWIN TERMINAL, PLASTIC	1	marked 'L'	CHF 23.75
1	GGE164	HORN HIGH NOTE, TWIN TERMINAL, PLASTIC	1	marked 'H'	CHF 23.75
1	GGE164K	HORN KIT REPLACEMENT	1	high/low - including 2 horns, brackets & fixings	availability request (add quantity to basket, offer follows)

Ill.no.	Partno.	Part	Quantity required	Info	Price
2	GGE109	HORN BRACKETS (PAIR)	1		availability request (add quantity to basket, offer follows)

Ill.no.	Partno.	Part	Quantity required	Info	Price
3	GGE113	USE GGE124	2
3	GGE124	BRACKET, HORN	2		availability request (add quantity to basket, offer follows)

Ill.no.	Partno.	Part	Quantity required	Info	Price
4	GHF101	SCREW 1/4 UNF X 1IN	4		CHF 0.65

Ill.no.	Partno.	Part	Quantity required	Info	Price
5	GHF331	WASHER SPRING 1/4"	4		CHF 0.55

Ill.no.	Partno.	Part	Quantity required	Info	Price
6	WM93	WASHER, PLAIN, 1/4" ID X 5/8" OD	4		CHF 5.40

Ill.no.	Partno.	Part	Quantity required	Info	Price
8	150277	HORN CONTACT WITH TRIUMPH EMBLEM	1		CHF 71.50

Ill.no.	Partno.	Part	Quantity required	Info	Price
9	142534	HORN CONTACT PIN IN STEERING WHEEL, 2.6" (6.6 CM)	1	2.6" long	CHF 19.15
9	142534X	HORN CONTACT PIN IN STEERING WHEEL, 3.4" (8.6 CM)	1	3.4" long	CHF 36.35

Ill.no.	Partno.	Part	Quantity required	Info	Price
10	204741	CLAMP SPRING HORN CONTACT BUTTON (3-ARM)	1		CHF 31.00

Ill.no.	Partno.	Part	Quantity required	Info	Price
11	613766	CLIP, WOVEN DOOR SEAL	1	alternative	CHF 2.15

Ill.no.	Partno.	Part	Quantity required	Info	Price
12	608462	SLIP RING HORN CONTACT INCL. PLASTIC CARRIER AND CABLE	1		CHF 61.05

Ill.no.	Partno.	Part	Quantity required	Info	Price
13	608139	USE 608462	1

Ill.no.	Partno.	Part	Quantity required	Info	Price
14	BMK1727	STARTER SOLENOIDE SQUARE	1		CHF 61.85

Ill.no.	Partno.	Part	Quantity required	Info	Price
15	AB610063	TAP SCREW	2		CHF 2.90

Ill.no.	Partno.	Part	Quantity required	Info	Price
16	FC2805	SPIRE NUT NO.10	2		CHF 8.45

Ill.no.	Partno.	Part	Quantity required	Info	Price
17	8G548	RUBBER CAPS BATTERY CONNECTIONS	3	solenoid & starter	CHF 3.60

Ill.no.	Partno.	Part	Quantity required	Price
18	GFU2103	USE GFU2103X	1
18	GFU2103X	FLASHER UNIT ELECTRONIC 3 TERM -/VE	1	CHF 30.85
18	HD13	FLASHER UNIT TRISCAN ELECTRONIC 12V 5-150W	1	CHF 30.85

Ill.no.	Partno.	Part	Quantity required	Info	Price
19	BAU2110	CABLE/CONNECTOR TO HEADLAMP WITHOUT PILOT	1		CHF 13.85

Ill.no.	Partno.	Part	Quantity required	Info	Price
20	AB606082	SCREW-CPANHD NO6X1.0	1		CHF 0.65

Ill.no.	Partno.	Part	Quantity required	Info	Price
21	21B291	BRAKE LIGHT SWITCH HYDRAULIC, 2 PLUG-IN CONNECTIONS	1	1961-63	CHF 22.45

Ill.no.	Partno.	Part	Quantity required	Info	Price
22	13H3735	BRAKE LIGHT SWITCH PLASTIC, ANGULAR	1	1964-67	CHF 6.50
22	13H3735X	SWITCH, BRAKE LIGHT, UPRATED	1	1964-67	CHF 21.75

Ill.no.	Partno.	Part	Quantity required	Info	Price
23	GHF325	WASHER STAR INT 1/2	1		CHF 0.65

Ill.no.	Partno.	Part	Quantity required	Info	Price
24	FNZ208	NUT 1/2 UNF THIN	1		CHF 0.65

Ill.no.	Partno.	Part	Quantity required	Info	Price
25	CHM68	RELAY 26RA TYPE, ROUND TYPE	1	TR4A	availability request (add quantity to basket, offer follows)

Ill.no.	Partno.	Part	Quantity required	Info	Price
26	GHF425	SCREW 10X1/2	2	TR4A	CHF 0.65

Ill.no.	Partno.	Part	Quantity required	Info	Price
27	142169A	RELAY 6RA TYPE	1	if overdrive fitted	CHF 47.10

Ill.no.	Partno.	Part	Quantity required	Info	Price
29	PT505	SCREW 3/16" UNF X 5/8"	2	if overdrive fitted	CHF 2.15

Ill.no.	Partno.	Part	Quantity required	Info	Price
30	PWZ203	WASHER, PLAIN, 3/16" ID X 3/4" OD	2	if overdrive is fitted	CHF 0.75

Ill.no.	Partno.	Part	Quantity required	Info	Price
31	WL700101	WASHER SPRING 3/16	2	if overdrive is fitted	CHF 0.65

Ill.no.	Partno.	Part	Quantity required	Info	Price
32	HN2005	NUT 10.32 UNF 3/8 AF	2	if overdrive is fitted	CHF 1.05

Ill.no.	Partno.	Part	Quantity required	Info	Price
33	GTR104	TEMPERATURE TRANSMITTER	1		CHF 18.20

Ill.no.	Partno.	Part	Quantity required	Info	Price
34	128484	VOLT STABILISER 1300/01 (+GROUND)	1		CHF 31.75

Ill.no.	Partno.	Part	Quantity required	Info	Price
35	GHF423	SCREW NO8 X 1/2 POZI	1		CHF 0.65

Ill.no.	Partno.	Part	Quantity required	Info	Price
36	GHF712	U NUT (SPIRE) NO 8	1		CHF 0.65

Ill.no.	Partno.	Part	Quantity required	Info	Price
38	BAU1074A	USE BAU1074Z	3	if overdrive fitted
38	BAU1074Z	SWITCH REVERSE & OVERDRIVE	3	if overdrive fitted	CHF 20.80

Ill.no.	Partno.	Part	Quantity required	Info	Price
39	1B3664	WASHER FIBRE 5/8"	a/r		CHF 0.65

Ill.no.	Partno.	Part	Quantity required	Info	Price
40	606253A	FUSE BOX, LUCAR TYPE ( 4FJ)	1		CHF 30.05

Ill.no.	Partno.	Part	Quantity required	Info	Price
41	505158A	FUSE BOX 4FJ COVER	1		CHF 11.45

Ill.no.	Partno.	Part	Quantity required	Info	Price
42	GFS35X	SINGLE 35AMP GLASS FUSE	a/r	17 amp continuous	CHF 1.75

Ill.no.	Partno.	Part	Quantity required	Info	Price
43	AB610063	TAP SCREW	2		CHF 2.90

Ill.no.	Partno.	Part	Quantity required	Info	Price
44	GEU6603	REGULATOR PLUG-IN CONNECTIONS	1	cars with dynamo	CHF 71.85
44	GEU6603ELPOS	ELECTRONIC REGULATOR, POSITIVE GROUND, PLUG-IN CONNECTIONS	1		CHF 279.50
44	GEU6603ELNEG	ELECTRONIC REGULATOR, NEGATIVE GROUND, PLUG-IN CONNECTIONS	1		CHF 279.50

Ill.no.	Partno.	Part	Quantity required	Info	Price
45	GEU6609	REGULATOR ALTERNATOR, 3 CONNECTIONS, NEG. EARTH	1	cars with alternator	CHF 72.40

Ill.no.	Partno.	Part	Quantity required	Info	Price
46	PMZ320	SCREW, 3/16" UNF X 1 1/4", PAN HEAD	2		CHF 0.75

Ill.no.	Partno.	Part	Quantity required	Info	Price
48	502087A	SWITCH HEADLAMP, DIPPING	1	early TR4	CHF 46.10

Ill.no.	Partno.	Part	Quantity required	Info	Price
49	RMP320	SCREW NO.10 UNF X 1 1/4"	2	early TR4 RHD	CHF 1.75
49	TR6504	SCREW, SENDER UNIT TO TANK	2	early TR4 LHD	CHF 2.90

Ill.no.	Partno.	Part	Quantity required	Info	Price
50	GHF702	SPIRE, FLAT NUT NO 10	2	early TR4 LHD	CHF 1.05

Ill.no.	Partno.	Part	Quantity required	Info	Price
51	RTC432A	SWITCH, HEADLAMP DIPPING	1	Late TR4, TR4A	CHF 34.15

Ill.no.	Partno.	Part	Quantity required	Info	Price
52	RTC432CAP	RUBBER CAP, FOOT DIP SWITCH	1	Late TR4, TR4A	CHF 15.85

Ill.no.	Partno.	Part	Quantity required	Info	Price
53	AD610073	SCREW, SELF TAPPING, NO.10 X 7/8", POSIDRIVE RAISED/COUNTERSUNK, CHROME	2	Late TR4, TR4A	availability request (add quantity to basket, offer follows)

Ill.no.	Partno.	Part	Quantity required	Info	Price
54	GHF702	SPIRE, FLAT NUT NO 10	2	Late TR4, TR4A	CHF 1.05

Ill.no.	Partno.	Part	Quantity required	Info	Price
1	GGE165	HORN LOW NOTE, TWIN TERMINAL, PLASTIC	1	marked 'L'	CHF 23.75
1	GGE164	HORN HIGH NOTE, TWIN TERMINAL, PLASTIC	1	marked 'H'	CHF 23.75
1	GGE164K	HORN KIT REPLACEMENT	1	high/low - including 2 horns, brackets & fixings	availability request (add quantity to basket, offer follows)
2	GGE109	HORN BRACKETS (PAIR)	1		availability request (add quantity to basket, offer follows)
3	GGE113	USE GGE124	2
3	GGE124	BRACKET, HORN	2		availability request (add quantity to basket, offer follows)
4	GHF101	SCREW 1/4 UNF X 1IN	4		CHF 0.65
5	GHF331	WASHER SPRING 1/4"	4		CHF 0.55
6	WM93	WASHER, PLAIN, 1/4" ID X 5/8" OD	4		CHF 5.40
8	150277	HORN CONTACT WITH TRIUMPH EMBLEM	1		CHF 71.50
9	142534	HORN CONTACT PIN IN STEERING WHEEL, 2.6" (6.6 CM)	1	2.6" long	CHF 19.15
9	142534X	HORN CONTACT PIN IN STEERING WHEEL, 3.4" (8.6 CM)	1	3.4" long	CHF 36.35
10	204741	CLAMP SPRING HORN CONTACT BUTTON (3-ARM)	1		CHF 31.00
11	613766	CLIP, WOVEN DOOR SEAL	1	alternative	CHF 2.15
12	608462	SLIP RING HORN CONTACT INCL. PLASTIC CARRIER AND CABLE	1		CHF 61.05
13	608139	USE 608462	1
14	BMK1727	STARTER SOLENOIDE SQUARE	1		CHF 61.85
15	AB610063	TAP SCREW	2		CHF 2.90
16	FC2805	SPIRE NUT NO.10	2		CHF 8.45
17	8G548	RUBBER CAPS BATTERY CONNECTIONS	3	solenoid & starter	CHF 3.60
18	GFU2103	USE GFU2103X	1
18	GFU2103X	FLASHER UNIT ELECTRONIC 3 TERM -/VE	1		CHF 30.85
18	HD13	FLASHER UNIT TRISCAN ELECTRONIC 12V 5-150W	1		CHF 30.85
19	BAU2110	CABLE/CONNECTOR TO HEADLAMP WITHOUT PILOT	1		CHF 13.85
20	AB606082	SCREW-CPANHD NO6X1.0	1		CHF 0.65
21	21B291	BRAKE LIGHT SWITCH HYDRAULIC, 2 PLUG-IN CONNECTIONS	1	1961-63	CHF 22.45
22	13H3735	BRAKE LIGHT SWITCH PLASTIC, ANGULAR	1	1964-67	CHF 6.50
22	13H3735X	SWITCH, BRAKE LIGHT, UPRATED	1	1964-67	CHF 21.75
23	GHF325	WASHER STAR INT 1/2	1		CHF 0.65
24	FNZ208	NUT 1/2 UNF THIN	1		CHF 0.65
25	CHM68	RELAY 26RA TYPE, ROUND TYPE	1	TR4A	availability request (add quantity to basket, offer follows)
26	GHF425	SCREW 10X1/2	2	TR4A	CHF 0.65
27	142169A	RELAY 6RA TYPE	1	if overdrive fitted	CHF 47.10
29	PT505	SCREW 3/16" UNF X 5/8"	2	if overdrive fitted	CHF 2.15
30	PWZ203	WASHER, PLAIN, 3/16" ID X 3/4" OD	2	if overdrive is fitted	CHF 0.75
31	WL700101	WASHER SPRING 3/16	2	if overdrive is fitted	CHF 0.65
32	HN2005	NUT 10.32 UNF 3/8 AF	2	if overdrive is fitted	CHF 1.05
33	GTR104	TEMPERATURE TRANSMITTER	1		CHF 18.20
34	128484	VOLT STABILISER 1300/01 (+GROUND)	1		CHF 31.75
35	GHF423	SCREW NO8 X 1/2 POZI	1		CHF 0.65
36	GHF712	U NUT (SPIRE) NO 8	1		CHF 0.65
38	BAU1074A	USE BAU1074Z	3	if overdrive fitted
38	BAU1074Z	SWITCH REVERSE & OVERDRIVE	3	if overdrive fitted	CHF 20.80
39	1B3664	WASHER FIBRE 5/8"	a/r		CHF 0.65
40	606253A	FUSE BOX, LUCAR TYPE ( 4FJ)	1		CHF 30.05
41	505158A	FUSE BOX 4FJ COVER	1		CHF 11.45
42	GFS35X	SINGLE 35AMP GLASS FUSE	a/r	17 amp continuous	CHF 1.75
43	AB610063	TAP SCREW	2		CHF 2.90
44	GEU6603	REGULATOR PLUG-IN CONNECTIONS	1	cars with dynamo	CHF 71.85
44	GEU6603ELPOS	ELECTRONIC REGULATOR, POSITIVE GROUND, PLUG-IN CONNECTIONS	1		CHF 279.50
44	GEU6603ELNEG	ELECTRONIC REGULATOR, NEGATIVE GROUND, PLUG-IN CONNECTIONS	1		CHF 279.50
45	GEU6609	REGULATOR ALTERNATOR, 3 CONNECTIONS, NEG. EARTH	1	cars with alternator	CHF 72.40
46	PMZ320	SCREW, 3/16" UNF X 1 1/4", PAN HEAD	2		CHF 0.75
48	502087A	SWITCH HEADLAMP, DIPPING	1	early TR4	CHF 46.10
49	RMP320	SCREW NO.10 UNF X 1 1/4"	2	early TR4 RHD	CHF 1.75
49	TR6504	SCREW, SENDER UNIT TO TANK	2	early TR4 LHD	CHF 2.90
50	GHF702	SPIRE, FLAT NUT NO 10	2	early TR4 LHD	CHF 1.05
51	RTC432A	SWITCH, HEADLAMP DIPPING	1	Late TR4, TR4A	CHF 34.15
52	RTC432CAP	RUBBER CAP, FOOT DIP SWITCH	1	Late TR4, TR4A	CHF 15.85
53	AD610073	SCREW, SELF TAPPING, NO.10 X 7/8", POSIDRIVE RAISED/COUNTERSUNK, CHROME	2	Late TR4, TR4A	availability request (add quantity to basket, offer follows)
54	GHF702	SPIRE, FLAT NUT NO 10	2	Late TR4, TR4A	CHF 1.05