Standard Ignition DR-328 Distributor Rotor

Distributor Rotor for GM V6 Ignition Systems

Standard Ignition DR-328 is a distributor rotor built for reliable spark transfer in select GM applications. It uses a high dielectric-strength polymer body to help prevent arcing, a solid brass segment for consistent contact, and a stainless steel spring for stable brush contact and corrosion resistance.

Compatible With 1991-1995 Chevrolet Lumina APV, 1991-1995 Pontiac Trans Sport, and 1991-1994 Oldsmobile Silhouette applications. Standard Ignition DR-328 is a direct replacement distributor rotor for service work on these vehicles.

Key Features

• High dielectric-strength engineering polymer helps resist electrical breakdown and arcing
• Solid brass segment resists pitting and erosion for extended service life
• Stainless steel spring maintains positive contact with the distributor cap brush
• Corrosion-resistant spring construction supports dependable operation
• Includes mounting screw with lock washer for complete replacement
• Part number DR-328 for easy identification and ordering

Detailed Description

This distributor rotor is engineered for ignition service where stable spark routing and durable contact materials matter. The brass segment supports consistent current transfer, while the polymer housing helps isolate the rotor from electrical breakdown under demanding operating conditions. The stainless steel spring maintains contact pressure at the distributor cap brush, helping preserve ignition performance over time. This part cross-references CSF 3959 for the same application.

Use DR-328 when servicing distributor wear on 1991-1995 Chevrolet Lumina APV, 1991-1995 Pontiac Trans Sport, and 1991-1994 Oldsmobile Silhouette models. The design supports direct replacement needs for these GM minivan applications.

What It Helps Address

• Misfire caused by worn rotor contact surfaces
• Ignition breakdown from arcing or electrical leakage
• Rotor pitting and erosion from repeated spark transfer
• Weak distributor cap brush contact
• Corrosion-related contact inconsistency

Installation Notes and Tips

Inspect the distributor cap, cap brush, and related ignition components before installation. Clean the distributor interior, confirm proper rotor alignment, and secure the rotor with the supplied mounting screw and lock washer. Verify the application against the vehicle year and model before service.

Quality Assurance

Standard Ignition manufactures DR-328 with materials selected for electrical insulation, contact durability, and corrosion resistance. The part is built as a service replacement for the listed Chevrolet, Pontiac, and Oldsmobile applications.