1977 Triumph TR7 Electrical Bulb & Socket Parts

This table covers the bulbs in the reverse lamps. Typical signs include a dark lamp, flicker, or a bulb that keeps failing in one socket. If the same position keeps failing, replace the socket or repair the ground rather than chasing bulbs. Read more

9 Back Up / Reverse Lamp Bulb parts for the 1977 Triumph TR7 come from 4 brands — SYLVANIA, WAGNER, HELLA and 1 other brand. The "Popular" part is HELLA 1156.

In the Extended Life grade, HELLA, PHILIPS, SYLVANIA and 1 other brand supply 4 parts: grouped under the catalog's "Extended Life" designation — the notes column spells out what sets them apart. A representative part number is HELLA 1156LL.

In the Extra Bright (improved visibility, but shorter life) grade, SYLVANIA supplies 1 part: grouped under the catalog's "Extra Bright (improved visibility, but shorter life)" designation — the notes column spells out what sets them apart. A representative part number is SYLVANIA 1156ST.

The LED (instant-on, long life, energy-saving) section lists 1 option from WAGNER — grouped under the catalog's "LED (instant-on, long life, energy-saving)" designation — the notes column spells out what sets them apart. WAGNER 1156WLED is listed in this group.

In the Standard Replacement grade, HELLA, WAGNER and SYLVANIA supply 3 parts: built to original-equipment specification. A representative part number is HELLA 1156.

Part numbers include HELLA 1156 and HELLA 1156LL, among others listed above.

This table covers the bulbs in the stop lamps. Typical signs include a dark lamp, flicker, or a bulb that keeps failing in one socket. If the same position keeps failing, replace the socket or repair the ground rather than chasing bulbs. Read more

10 Brake Light Bulb parts for the 1977 Triumph TR7 come from 3 brands — SYLVANIA, WAGNER and HELLA. The "Popular" part is SYLVANIA 1157.

Extended Life: 2 parts, from SYLVANIA and WAGNER. A representative part number is SYLVANIA 1157LL.

Extra Bright (improved visibility, but shorter life): 1 part, from SYLVANIA. A representative part number is SYLVANIA 1157ST.

The LED (instant-on, long life, energy-saving) section: 4 options from SYLVANIA and WAGNER. SYLVANIA 1157SL is listed in this group.

Standard Replacement: 3 parts, from SYLVANIA, WAGNER and HELLA. A representative part number is SYLVANIA 1157.

This table covers the bulbs that light the headlamps. Typical signs include a dark lamp, a flicker over bumps, or a bulb that keeps failing on one side. Avoid touching a halogen capsule. Repeated failure in one socket is usually the socket or ground, not the bulb. Read more

5 Headlamp Bulb parts are listed for the 1977 Triumph TR7, from SYLVANIA and WAGNER. WAGNER H6024 carries the "Popular" badge.

The Extra Bright (improved visibility, but shorter life) section: 3 options from SYLVANIA and WAGNER. SYLVANIA H6024XV is listed in this group.

The Standard Replacement section: 2 options from WAGNER and SYLVANIA. WAGNER H6024 is listed in this group.

Listed part numbers: WAGNER H6024, SYLVANIA H6024XV and SYLVANIA H6024ST, plus the other parts above.

This table covers the sockets that hold a headlamp bulb in the housing. Typical signs include a flicker over bumps, melted plastic, or a bulb that will not stay seated. Dielectric grease on the contacts slows corrosion. Do not force a bulb into a heat-damaged socket. Read more

9 Headlamp Socket parts are listed for the 1977 Triumph TR7, from DORMAN, STANDARD MOTOR PRODUCTS, ACDELCO and 2 other brands. DORMAN 85810 carries the "Popular" badge.

Listed part numbers: DORMAN 85810, DORMAN 84790 and ACDELCO LS144, plus the other parts above.

This table covers the replacement bulbs for the Instrument Panel Light. Typical signs include a dark lamp, flicker, or a bulb that keeps failing in one socket. If the same position keeps failing, replace the socket or repair the ground rather than chasing bulbs. Read more

23 Instrument Panel Light Bulb parts for the 1977 Triumph TR7 come from 7 brands — SYLVANIA, WAGNER, HELLA and 4 other brands. The "Popular" part is SYLVANIA 194LL.

Extended Life: 4 parts, from SYLVANIA and WAGNER. A representative part number is SYLVANIA 194LL.

Extra Bright (improved visibility, but shorter life): 1 part, from SYLVANIA. A representative part number is SYLVANIA 194ST.

The LED (instant-on, long life, energy-saving) section: 10 options from SYLVANIA, DORMAN, WAGNER and 2 other brands. HELLA 921LED5K is listed in this group.

Standard Replacement: 8 parts, from HELLA, SYLVANIA, WAGNER and 2 other brands. A representative part number is HELLA 194.

This table covers the bulbs in the parking lamps. Typical signs include a dark lamp, flicker, or a bulb that keeps failing in one socket. If the same position keeps failing, replace the socket or repair the ground rather than chasing bulbs. Read more

6 Parking Lamp Bulb parts are listed for the 1977 Triumph TR7, from SYLVANIA, WAGNER, PHILIPS and 1 other brand. PHILIPS 1895 carries the "Popular" badge.

The Extended Life section: 2 options from SYLVANIA and WAGNER. SYLVANIA 1895LL is listed in this group.

The Standard Replacement section: 4 options from PHILIPS, WAGNER, HELLA and 1 other brand. PHILIPS 1895 is listed in this group.

Listed part numbers: PHILIPS 1895 and SYLVANIA 1895LL, plus the other parts above.

This table covers the bulbs in the side-marker lamps. Typical signs include a dark lamp, flicker, or a bulb that keeps failing in one socket. If the same position keeps failing, replace the socket or repair the ground rather than chasing bulbs. Read more

11 Side Marker Light Bulb parts for the 1977 Triumph TR7 come from 4 brands — SYLVANIA, WAGNER, HELLA and 1 other brand. The "Popular" part is HELLA 194.

Extended Life: 3 parts, from HELLA, SYLVANIA and WAGNER. A representative part number is HELLA 194LL.

Extra Bright (improved visibility, but shorter life): 1 part, from SYLVANIA. A representative part number is SYLVANIA 194ST.

The LED (instant-on, long life, energy-saving) section: 3 options from SYLVANIA and WAGNER. SYLVANIA 194BSL is listed in this group.

Standard Replacement: 4 parts, from HELLA, PHILIPS, WAGNER and 1 other brand. A representative part number is HELLA 194.

This table covers the bulbs in the tail lamps. Typical signs include a dark lamp, flicker, or a bulb that keeps failing in one socket. If the same position keeps failing, replace the socket or repair the ground rather than chasing bulbs. Read more

6 Tail Lamp Bulb parts are listed for the 1977 Triumph TR7, from PHILIPS, SYLVANIA and WAGNER. PHILIPS 97LL carries the "Popular" badge.

The Extended Life section: 3 options from PHILIPS, SYLVANIA and WAGNER. PHILIPS 97LL is listed in this group.

The Standard Replacement section: 3 options from WAGNER, PHILIPS and SYLVANIA. WAGNER 97 is listed in this group.

This group includes PHILIPS 97LL and the remaining parts above.

This table covers the bulbs in the turn-signal lamps. Typical signs include a dark lamp, flicker, or a bulb that keeps failing in one socket. If the same position keeps failing, replace the socket or repair the ground rather than chasing bulbs. Read more

10 Turn Signal Lamp Bulb parts for the 1977 Triumph TR7 come from 5 brands — SYLVANIA, WAGNER, HELLA and 2 other brands. The "Popular" part is HELLA 1156.

Extended Life: 4 parts, from HELLA, PHILIPS, SYLVANIA and 1 other brand. A representative part number is HELLA 1156LL.

Extra Bright (improved visibility, but shorter life): 1 part, from SYLVANIA. A representative part number is SYLVANIA 1156ST.

The LED (instant-on, long life, energy-saving) section: 2 options from DORMAN and WAGNER. DORMAN 1156WSMD is listed in this group.

Standard Replacement: 3 parts, from HELLA, WAGNER and SYLVANIA. A representative part number is HELLA 1156.