noun
electrical component; electrical part
Commonly used in automotive, machinery, and industrial contexts for parts such as alternators, starters, sensors, and wiring harnesses.
この車の電装品はすべて新品に交換した。
All the electrical components in this car have been replaced with new ones.
電装品の故障でエンジンがかからなくなっ
The engine wouldn't start because of a failure in an electrical component.
部品 is a general term for parts or components, whereas 電装品 is limited to electrical parts.
Compound of 電 (でん, 'electricity') + 装 (そう, 'equipment' or 'fitting') + 品 (ひん, 'article' or 'goods'). The term is a modern technical coinage.