As used in this chapter, the following definitions shall apply:
(a) “Insurer” includes an insurance company and any person authorized to represent the insurer with respect to a claim.
(b) “Aftermarket crash part” means a replacement for any of the nonmechanical sheet metal or plastic parts which generally constitute the exterior of a motor vehicle, including inner and outer panels.
(c) “Nonoriginal equipment manufacturer (Non-OEM) aftermarket crash part” means aftermarket crash parts not made for or by the manufacturer of the motor vehicle.