1986-1989 C4 Headlight Switch Knob - 14066537 - OEM Number(s) (14066537)
Restore reliable headlight operation with this direct replacement 1986–1989 Corvette Headlight Switch Knob. This OE-style knob installs without removing the dash and features the correct black finish and factory-accurate graphic icon. Its clip-on mounting system uses a tensioned steel insert to snap securely onto your existing switch shaft—restoring function and appearance in one step.
Features
• Fits 1986–1989 Corvettes
• OE-style black knob with factory-correct icon
• Clip-on design eliminates need to remove dash panel
• Tensioned spring steel insert for secure attachment
• Designed to snap onto original headlight switch shaft
• Ideal for stock restorations and driver repairs
Dimensions and Weight
• Overall Diameter: 7/8"
• Shaft Insert Diameter: 1/2"
• Total Height: 1-3/16"
• Material: Injection-molded plastic
Tech Notes
• Removal requires a small 90° scribe or pick
• Insert tool into the notch at the base of the knob
• Apply upward pressure to release spring clip tension
• Pull knob outward while clip is disengaged
• Installation is press-fit—no tools required
Because Details Matter
Small parts make a big impact. This factory-style knob keeps your controls looking correct and working safely—no disassembly, no downtime.
Also known under these part numbers: (For reference only)
- 110008
- 14066537
- 254257
- 686420065616
- 698450
- HDL-332