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Whelen M4A - 01-066A798-A0K

Lighthead M4A
Brand Whelen
SAE SAE Class 1 Certified
Lens Color Amber
LED Color Amber
Mount Surface
Volts 12 VDC


In Stock

M4FC - Chrome Flange, M4 Series $15.66
M4FB - Black Flange, M4 Series $9.56
With a unique lens shape and patented Linear-LED® designed reflector assembly, M Series lightheads are completely illuminated for unmatched high intensity warning and low current consumption.
Prop 65 WarningWARNING: This product may contain chemicals known to the State of California to cause cancer, birth defects and/or other reproductive harm. See more information at https://whelen.com/regulatory
Specifications for 01-066A798-A0K Whelen M4A Replacement Lighthead
Lens Color Amber
LED Color Amber
Mount Surface
Flash Pattern 125 Scan-Lock™
Technology Super-LED
SAE SAE Class 1 Certified
Optics Directional
Volts 12 VDC
Amps 1.5 Peak / 0.6 Average
Height 3.375in (86.00mm)
Width 5.50in (138.00mm)
Depth 1.375in (35.00mm)
Product Code 01-066A798-A0K
Series M4
Description M4A
SKU Qty 1
Sales Unit Each
Whelen M4A 01-066A798-A0K Replacement Lighthead Applications & Features


  • SAE Class 1 Certified (warning)
  • Multiple Scan-Lock™ flash patterns, many being California Title XIII compliant. Meets KKK-1822F, NFPA 1901, NFPA 1917, SAE, and EC65 specifications
  • Choose flash patterns from solid, left/right, top/bottom, in/out, or diagonal sequencing
  • Warning lights with internal flasher have sync and low power functions
  • Hard-coated lenses minimize environmental damage from sand, sun, salt, and road chemicals
  • Surface mounts via two screws for easy installation
  • Solid color models have 125 Scan-Lock flash patterns
  • Five year warranty
Warranty information for the Whelen M4A 01-066A798-A0K Replacement Lighthead

PDF IconWhelen M4 Automotive Warranty Information