Standard Ignition AL-85 Distributor Rotor

Distributor Rotor for Jeep CJ5

Standard Ignition AL-85 is a distributor rotor for a 1959 Jeep CJ5 with an IAD Series distributor. It is built with a high-dielectric alkyd body to help resist dirt buildup and reduce carbon tracking, supporting consistent ignition performance in classic Jeep applications.

For Jeep CJ5 ignition service, the AL-85 uses solid brass segments for improved conductivity and stronger spark transfer to the plugs. Standard Ignition also uses shaft retention clips where required to help maintain proper fit and rotor alignment in the distributor.

Key Features

• Contents: distributor rotor
• High-dielectric alkyd construction helps resist dirt sticking and carbon tracking
• Solid brass segments support better conductivity and spark delivery
• Shaft retention clips used where required for fit and performance
• Direct replacement for select IAD Series distributor applications

Detailed Description

The Standard Ignition AL-85 distributor rotor is a replacement ignition component for 1959 Jeep CJ5 models equipped with an IAD Series distributor. As the rotor turns inside the distributor cap, it transfers high voltage to each spark plug terminal in the correct firing sequence. This part number is built to maintain stable spark transfer and dependable distributor operation in vintage Jeep ignition systems. The AL-85 is also referenced by cross numbers such as FEL-PRO 410 and Four Seasons 55758 for the same application.

Common Issues It Can Help Address

• Weak or inconsistent spark delivery through the distributor
• Carbon tracking caused by contamination inside the cap and rotor area
• Misfire concerns related to worn rotor contacts
• Ignition performance loss from deteriorated rotor materials
• Fitment problems in IAD Series distributor service work

Installation Notes and Tips

Verify the distributor type before ordering; this rotor is listed for 1959 Jeep CJ5 models with an IAD Series distributor. Inspect the distributor cap, terminals, and shaft condition during service, and replace any worn ignition components that could affect rotor contact or spark transfer. Confirm the rotor seats correctly on the distributor shaft before closing the cap.

Quality Assurance

Standard Ignition builds this rotor with materials selected for dielectric strength, conductivity, and service life in distributor applications. Decades of ignition component development inform the design and fit of the AL-85.