SKP SKDIGM21 Distributor

Overview

SKP distributor SKDIGM21 is a direct-fit ignition distributor for a wide range of Chevrolet and GMC applications from the mid-1970s through 1982. It is listed for electronic ignition and HEI-equipped vehicles, with fitment notes that vary by application.

Compatible With Chevrolet and GMC trucks, vans, SUVs, and passenger cars that use the listed distributor configurations. Part number SKDIGM21 appears in interchange references for the same application.

Key Features

• Distributor assembly for ignition system service and replacement
• Application-specific fitment for electronic ignition and HEI setups
• Coverage for many Chevrolet and GMC models across multiple years
• Notes include vacuum and governor exclusions where required
• Cross-references Monroe Shocks & Struts 84-1895 for the same application

Detailed Description

SKDIGM21 is a replacement distributor built for older Chevrolet and GMC ignition systems that require the listed distributor configuration. Fitment includes Chevrolet El Camino, C10, Corvette, K5 Blazer, Nova, and GMC Jimmy, along with many truck and van applications. Use the vehicle notes to confirm whether the application calls for electronic ignition, HEI, or a non-vacuum, non-governor setup before ordering. The part number SKDIGM21 is also referenced as DST1895 in interchange data.

This distributor is a practical service part for restoring spark timing control when the original unit is worn, inconsistent, or no longer functioning correctly. It is listed across 1975-1982 Chevrolet and GMC applications, including several models with cap and rotor supplied in the fitment notes.

What It Is Used For

• Hard starting caused by distributor wear
• Misfire from inconsistent spark timing
• Rough idle related to ignition distributor failure
• Loss of ignition performance in HEI or electronic ignition systems
• Replacement of a damaged or non-functioning distributor

Installation Notes

Confirm the engine’s ignition type, vacuum requirement, and governor configuration against the fitment notes before installation. Match the distributor to the exact Chevrolet or GMC application listed for your vehicle, since the notes differ by model and year. SKDIGM21 should be installed according to the service procedure for the specific ignition system.

Quality Assurance

SKP replacement parts are cataloged for application-specific fitment and interchange reference support. Verify the part number SKDIGM21 and the vehicle notes to ensure the correct distributor is selected for the intended Chevrolet or GMC application.