Standard Ignition DR-447 Distributor Cap

Distributor Cap for Classic GM Ignition Service

Standard Ignition DR-447 is a distributor cap for select 1975-1977 Buick, Oldsmobile, and Pontiac applications. It is built for dependable ignition performance on vehicles such as the Buick Century, Oldsmobile Cutlass, and Pontiac Firebird.

Key Features

• High-dielectric-strength polyester resin housing helps resist electrical breakdown and carbon tracking
• Glass and mineral reinforcement adds durability in demanding ignition environments
• Solid brass terminals are used where available for stronger electrical contact and corrosion resistance
• RFI resistors are included where specified to reduce radio static and voltage spikes
• Direct replacement distributor cap for classic GM ignition service
• Part number DR-447 for easy identification and ordering

Product Details

Standard Ignition DR-447 is engineered as a distributor cap replacement for 1975-1977 Buick Century, Regal, Skyhawk, Skylark, and LeSabre; 1977 Oldsmobile Cutlass, Cutlass Supreme, Delta 88, Omega, and Starfire; and 1976-1977 Pontiac Sunbird, plus 1977 Pontiac Catalina, Firebird, Grand LeMans, LeMans, and Phoenix. It also fits 1975-1976 Oldsmobile Starfire and 1977 Buick LeSabre with the listed applications. This part cross-references DR447T for the same application.

Common Issues This Part Can Address

• Cracked or worn distributor cap housing
• Carbon tracking inside the cap
• Corroded or pitted terminal connections
• Ignition misfire caused by poor spark transfer
• Radio interference or electrical noise in specified applications

Installation Notes and Tips

Verify distributor style and engine application before installation. Inspect the rotor, cap terminals, and ignition wires at the same time to avoid repeat service. Confirm the cap seats fully and that the vent configuration matches the original setup; this part is listed with no distributor vent.

Quality Assurance

Standard Ignition uses reinforced resin construction and corrosion-resistant terminal materials to support stable ignition performance in classic vehicle applications. DR-447 is built to meet the needs of vintage Buick, Oldsmobile, and Pontiac distributor service.