Designed to service a worn or failing turn signal switch on classic American cars, the Standard Turn Signal Switch Repair Kit TW-78C is a direct-fit replacement for the listed applications. These include the 1955-1963 Ford Thunderbird, 1959-1966 Ford Galaxie, 1962-1963 Chrysler New Yorker, 1964-1966 Plymouth Valiant and 1965-1966 Dodge Coronet, plus dozens of other Chrysler, Dodge, Ford, Mercury and Plymouth models. See the "Vehicles it fits" section for the full list and engine details.
- Copper alloy conductors: Provide strong electrical conductivity with low resistive losses.
- 100% tested: Standard tests its parts to verify both mechanical and electrical switching performance.
- Quality control throughout: As a global manufacturer of original equipment ignition products, Standard controls quality through the whole manufacturing process, from componentry to the finished product.
- Built for the service bay: A robust design and high-grade materials are backed by decades of research and development focused on what technicians need.
Signs that a turn signal switch may need repair include signals that work only intermittently, do not light on one side, or will not cancel after a turn. Bulbs, the flasher and wiring can cause similar symptoms, so diagnose the circuit before replacing parts. If the switch is the cause, this kit is intended to address it.
Interchange: DR4 · 2258700 · 2821170 · 2822170 · TSR105 · DL6123 · C3OZ13341B · D5TA13341C
This part cross-references / interchanges with the following part numbers:
DR4, 2258700, 2821170, 2822170, TSR105, DL6123, C3OZ13341B, D5TA13341C
Frequently Asked Questions
Which vehicles does the Standard TW-78C fit?
It fits dozens of classic Chrysler, Dodge, Ford, Mercury and Plymouth applications, including the 1955-1963 Ford Thunderbird and 1964-1966 Plymouth Valiant. See the "Vehicles it fits" section for the full list.
What signs may mean my turn signal switch needs repair?
Signals that work intermittently, do not light on one side, or will not cancel after a turn can indicate a worn switch. Check the bulbs, flasher and wiring first, because they can cause similar symptoms.
Is the TW-78C tested before it ships?
Yes. Standard states that its parts are 100% tested to verify both mechanical and electrical switching performance.
What are the kit's conductors made of?
The kit uses copper alloy conductors, which Standard specifies for strong electrical conductivity with low resistive losses.
What part numbers does the TW-78C interchange with?
TW-78C interchanges with DR4, 2258700, 2821170, 2822170, TSR105, DL6123, C3OZ13341B and D5TA13341C.
