Standard Ignition DR-158 Distributor Rotor

Distributor Rotor for Reliable Spark Transfer

The Standard Ignition DR-158 distributor rotor is built for consistent ignition performance in classic applications. It uses a black alkyd body with high dielectric strength to help resist dirt buildup and reduce carbon tracking, while brass contact segments support strong conductivity to the spark plugs.

Compatible With 1960 Jeep CJ5, 1958 Chevrolet Impala, 1950-1953 Pontiac Catalina, and 1950-1952 Chevrolet Bel Air applications, this rotor is a direct-fit service part for distributor maintenance. The DR-158 is a practical choice when restoring ignition output on vintage Jeep, Chevrolet, and Pontiac vehicles.

Key Features

• Black alkyd construction with dielectric strength for ignition service
• Brass contact terminal material for improved conductivity
• Push-on mount type for the listed distributor applications
• Helps reduce carbon tracking caused by dirt accumulation
• Built with shaft retention clips where required for fit and performance
• Standard Ignition DR-158 distributor rotor for classic vehicle service

Detailed Description

The DR-158 is a distributor rotor engineered for older ignition systems that rely on stable rotor-to-cap contact. Its brass segments help carry voltage efficiently through the distributor, supporting spark delivery to the plugs. The alkyd housing is selected to resist contamination that can contribute to carbon tracking and premature wear. This makes the Standard Ignition DR-158 a solid service part for maintaining ignition consistency in Jeep CJ5, Chevrolet Impala, Pontiac Catalina, and Chevrolet Bel Air applications.

This part cross-references DENSO Auto Parts 211-6010 for the same application.

What It Helps Solve

• Weak or inconsistent spark transfer through the distributor
• Carbon tracking inside the distributor cap
• Rotor wear that affects ignition timing stability
• Misfire concerns related to worn ignition components
• Service issues on vintage Jeep, Chevrolet, and Pontiac ignition systems

Installation Notes and Tips

Verify distributor part number and rotor mount style before installation. The DR-158 uses a push-on mount, so the rotor should seat fully on the distributor shaft without forcing it. Inspect the distributor cap, terminals, and shaft condition at the same time to avoid repeat ignition problems. Confirm the application against your vehicle’s distributor number, especially on 1960 Jeep CJ5 models noted with Dist. No. 1112432.

Quality Assurance

Standard Ignition uses materials and construction intended to support long service life in distributor applications. The DR-158 is built with brass contact segments and a dielectric-strength alkyd body to help maintain dependable ignition performance under normal operating conditions.