1991 GMC R3500 Ignition Module and Controls

GM Genuine Parts Ignition Control Modules are designed, engineered, and tested to rigorous standards, and are backed by General Motors. They increase voltage in order for the spark plugs to ignite the air/fuel mixture as 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. A GM Genuine Parts Ignition Control Module features electronically welded lead connections to help reduce heat stress, failure, or cold joints. It has been laser trimmed to provide precise values and reduce deterioration and damage. This ignition control module includes a copper slug heat sink to help dissipate heat and create a more stable environment and it also features a large bus bar for added support and conductivity to address the installation and operating forces that stress terminal tabs. GM Genuine Parts are the true OE parts installed during the production of or validated by General Motors for GM vehicles. Some GM Genuine Parts may have formerly appeared as ACDelco GM Original Equipment (OE).

Product Features:

• Feature electronically welded lead connections to reduce heat stress failure or cold joints
• Laser trimmed to provide precise values and reduce deterioration and damage
• Increase voltage in order for the spark plugs to ignite the air/fuel mixture
• Include a copper slug heat sink to help dissipate heat and create a more stable environment
• Equipped with a large bus bar for added support and conductivity to address the installation and operating forces that stress terminal tabs
• Some GM Genuine Parts may have formerly appeared as ACDelco GM Original Equipment (OE)
• GM Genuine Parts are designed, engineered and tested to rigorous standards, and are backed by General Motors
• GM Engineers design and validate OE parts specifically for your Chevrolet, Buick, GMC, or Cadillac vehicle
• GM regularly updates production and service part designs to integrate new materials and technologies

CARQUEST Ignition Modules are built by an ignition systems manufacturer with expertise in the entire vehicle spark system.

Product Features:

• CARQUEST Ignition Modules creates and refines the timing of the engine using various sensors and readings throughout the spark system in order to create an efficiently running engine.
• CARQUEST Ignition Modules use current and voltage limiting circuitry in order to prevent the ignition coil from over voltage/current. Over voltages can allow for coils to create excessive heat which can damage to the ignition module resulting in check eng
• CARQUEST Ignition Modules are 100% individually tested for all product functionalities including over voltage, timing and dwell.

Delphi OE technology ignition products are validated to match the vehicles system; OE quality replacement parts for the right fit , form and function; Delphi coils provide OE performance, durability and electromagnetic capacity level requirements.

Product Features:

• OE quality replacement parts for the right fit, form and function

Delphi ignition modules feature distributor-based, DIS and late-model cassette configurations for broad coverage. Delphi modules control the primary ignition circuit to fire the coil, using input from sensors that determine engine rotation and speed. The result is accurate, repeatable timing for optimal exhaust emissions, fuel economy and performance.

Product Features:

• OE Quality – Direct Fit
• Factory original equipment connectors
• No additional time consuming steps needed for installation
• Longest performance life