![HEI Distributor w/Vacuum Advance for 1965-1990 AMC & Jeep 199-258 ci. 6-Cylinder Engines [Red Cap]](https://www.jegs.com/images/mini_750/500/555/555-40021.jpg)
HEI Distributor w/Vacuum Advance for 1965-1990 AMC & Jeep 199-258 ci. 6-Cylinder Engines [Red Cap]
JEGS 555-40021 HEI Distributor Features:
- Switch from an old breaker-point ignition to a high-energy ignition (hei)
- 65,000-volt coil provides hot spark for maximum performance using solid brass terminals
- High quality CNC aluminum body provides years of trouble-free operation
- Fully compatible with flat tappet and hydraulic roller cams
- Easy drop-in installation using the 1-wire hook-up
- Performance Module for a Longer Dwell Circuit & Full-Coil Saturation
- Brass Terminal Cap & Rotor Give Maximum Voltage Output
- Adjustable Vacuum Advance
- Corrosion Resistant Coated Weights
- Welded Weight Pins are Extra Durable
- Standard-Type Iron Distributor Gear Made for Hydraulic or Solid Flat Tappet Cams
JEGS 555-40021 HEI Distributor Note:
- To protect ignition system components, always disconnect all vehicle power sources before performing welding on applications equipped with an HEI distributor. Electrical surges from welding can damage sensitive ignition electronics.
JEGS 555-40021 HEI Distributor Applications:
- 1965-1970 AMC Cars 199 3.3L 6 Cylinder
- 1965-1979 AMC Cars 232 3.8L 6 Cylinder
- 1971-1986 AMC Cars 258 4.2L 6 Cylinder
- 1972-1975 Jeep 232 3.8L 6 Cylinder
- 1972-1986 Jeep 258 4.2L 6 Cylinder
- 1987-1990 Jeep Wrangler 258 4.2L 6 Cylinder
FAQ
Does a HEI distributor need a coil?
- Yes, an HEI distributor uses an ignition coil enclosed in the distributor cap and is included with the JEGS 40021.
Why is my HEI distributor not firing?
- Several factors could contribute to a non-firing HEI distributor. Check for proper wiring, and connections, and ensure the ignition coil is functioning. For specific troubleshooting, refer to the JEGS 40021 manual or consult a professional.
Emissions Note:
This part is only legal for sale and use on Uncontrolled (Non-Emissions Controlled) Vehicles or on vehicles used solely for the purposes of closed competition racing.
CLICK THIS LINK FOR IMPORTANT CARB & EPA EMISSIONS INFORMATION ABOUT THIS PART
Distributors with Power, Reliability, and Simplicity
The GM HEI (High Energy Ignition) distributor is a self-contained, high-performance ignition system developed by General Motors in the mid-1970s. Known for its reliability, high voltage output, and simplified design, the HEI integrates the ignition coil directly into the distributor cap, reducing wiring complexity and eliminating the need for an external coil or external module. It delivers a stronger and more consistent spark across the RPM range.
The JEGS High-Performance HEI Street Spark Distributors are a popular upgrade for classic muscle cars, hot rods, & classic trucks, and are available for multiple AMC or Jeep Engines.
Click your favorite brand to view JEGS High-Performance HEI Street Spark Distributors for other engine manufacturers, Buick, Chevy, Olds, Pontiac, Ford, or Mopar Engines
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![HEI Distributor & Wire Set for 1965-1990 AMC & Jeep 199-258 ci. 6-Cylinder Engines [Red Cap]](https://www.jegs.com/images/mini_200/500/555/555-40021k.jpg)