Professional Distributor Caps/Rotors



Designed to fit and perform as well as your original equipment, ACDelco Professional Distributor Caps and Rotors are an ideal replacement for original equipment parts for many of today's most popular GM makes and models.

Features & Benefits
  • Metal inserts deliver maximum conductivity
  • Full anti-arc barriers reduce the possibility of secondary voltage arcs that can lead to engine misfires
  • Easy-to-read locator keys on caps are similar to OE markings, making proper installation simple

Product Facts
Find out more about ACDelco Professional Distributor Caps/Rotors and how they fit into the Starting and Charging System with the product facts below. 

FUNCTION:
Serves as a connecting hub for the spark plug wires and ignition coil wires. 

SIGNS OF WEAR:
Inability to start engine, poor starting qualities, visible cracks, misfiring, decreased fuel economy. 

WHAT IT DOES:
The Starting and Charging System starts the engine, maintains the battery's charge and provides power to the electrical accessories while the engine is running.