electrical

Turn Signal Bulb - Front

for 1966 Chevrolet Corvette 327ci V8 · RWD

Editorial review:Chris Hackleman — Master Technician · 20+ years · Jeff Moore — Master Lexus & Toyota Mechanic · 20+ years

Difficulty

Easy

Time

24 min

Tools

Steps

✓Expert-verified. Personally reviewed and approved by OLP's master technicians (Chris Hackleman & Jeff Moore — 20+ years each). Always follow the vehicle's factory service information and torque specs.

Replace the front turn signal bulb on a 1966 Chevrolet Corvette by accessing the bulb housing from behind the front bumper assembly.

Warnings

⚠Allow the bulb to cool completely before removal if the turn signals have been recently used to avoid burns.

ℹ️Avoid touching the glass portion of the new bulb with bare hands as oil from skin can shorten bulb life. Use a clean cloth if necessary.

Tools required

Flathead screwdriver

Phillips screwdriver

Work gloves

Clean cloth or towel

Parts

Front turn signal bulb × 1 — 1157 dual-filament bulb

Preparation

Park vehicle on level ground and set parking brake
Turn off ignition and remove keys
Identify which front turn signal requires bulb replacement (driver or passenger side)

Procedure

1
Access the turn signal assembly
Working from the front of the vehicle, locate the front turn signal/parking lamp assembly. On the 1966 Corvette (C2 Sting Ray), the front turn signal assemblies are mounted in the front body panel near the grille area, below the headlights, not in the bumper.
2
Locate the bulb socket access point
Access to the bulb is typically gained from the front by removing the lens. Remove the screws securing the turn signal lens to the housing and lift the lens away to expose the bulb and socket.
3
Remove the bulb socket
Locate the bulb socket at the back of the turn signal housing. Grasp the socket firmly and rotate it counterclockwise approximately one quarter turn. Pull the socket straight out from the housing to remove it.
4
Remove the failed bulb
With the socket removed, press the bulb gently into the socket and rotate it counterclockwise until it releases from the bayonet mount. Pull the bulb straight out of the socket. Inspect the socket for any corrosion or damage to the contacts.
5
Clean the socket contacts
If corrosion is present on the socket contacts, gently clean them with a clean cloth or fine sandpaper. Ensure the contacts are dry and free of debris before installing the new bulb.
6
Install the new bulb
Using a clean cloth to handle the new 1157 bulb, insert it into the socket. Align the offset pins on the bulb base with the slots in the socket. Press the bulb in gently and rotate clockwise until it locks into place in the bayonet mount.
7
Reinstall the socket assembly
Insert the socket back into the turn signal housing, aligning the tabs on the socket with the slots in the housing. Push the socket in and rotate clockwise approximately one quarter turn until it locks securely.
8
Test the turn signal operation
Turn the ignition to the ON position. Activate the turn signal on the repaired side and verify that the bulb illuminates properly for both the turn signal function and the running light function (if equipped). Check that the flash rate is normal.

Reassembly

Ensure the bulb socket is fully seated and locked into the housing
Return wheels to straight position if they were turned for access

Verification

Verify both filaments work: turn signal flashing function and running light function
Check that flash rate is consistent with the opposite side turn signal
Inspect the lens for proper seating and no moisture intrusion
Walk around vehicle to confirm repair is complete and no tools or parts are left in wheel well area

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