Standard Ignition Turn Signal Switch P/N:TW-19
Standard Motor Products
Standard Ignition TW-30 turn signal switch for the 1980-1990 Chevrolet P30 and other vehicles directs power to the left or right turn signal lights.
A turn signal that flashes on one side only, stays on, or does not work at all can point to a worn switch. A burned-out bulb, a weak flasher, a blown fuse or a damaged wire can be behind those signs too, so find the cause before buying.
This turn signal switch is a direct-fit replacement for the 1980-1990 Chevrolet P30, the 1979-1990 GMC P3500 and the 1975-1978 Chevrolet P20, and each takes one. If yours is a different model or year, look it up in the "Vehicles it fits" section.
Fit and size
Build and materials
Interchange: S3243 · SW313 · DL6203 · 1995228
Product information is for general reference and may contain errors. See our Disclaimer.
This part cross-references / interchanges with the following part numbers:
Does this P20 switch fit a 1975-1978 Chevrolet P20?
Yes. The Standard Ignition TW-30 turn signal switch is listed for the 1975-1978 Chevrolet P20, and each vehicle takes one.
How many terminals does the Standard Ignition TW-30 have?
The Standard Ignition TW-30 has nine male blade terminals and a male connector with three cavities.
My turn signals only work on one side. Could the switch be the problem?
Possibly. A worn switch can leave a signal working on one side only or not at all, and a shop can test the circuit to confirm.
Is the TW-30 interchangeable with part number SW313?
Yes. SW313 is on the interchange list for the Standard Ignition TW-30, along with S3243, DL6203 and 1995228.
Are Standard Ignition turn signal switches tested?
Yes. Standard Ignition tests its parts 100% for both mechanical and electrical switching performance.
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WARNING: These products can expose you to chemicals including lead and phthalates, which are known to the State of California to cause cancer and birth defects or other reproductive harm. For more information go to www.P65Warnings.ca.gov.