T-Series DR311T

Standard Motor Products T-Series DR311T is a distributor rotor for selected classic Delco/GM ignition systems. It transfers high voltage from the centre contact of the cap to each spark-plug lead as the distributor shaft rotates.

Application / fitment

DR311T is catalogued for many classic Chevrolet, Pontiac, Buick, Oldsmobile, GMC and related Delco-distributor applications. Confirm fitment by distributor number, cap and rotor mounting shape.

• selected Chevrolet Camaro, Corvette, Malibu, Monte Carlo, Impala and C/K applications
• selected Pontiac Firebird, Grand Prix, Catalina and LeMans applications
• selected Buick and Oldsmobile vehicles using a classic Delco distributor
• selected inline-six, V6 and V8 engines depending on distributor design

The rotor is not supplied as a cap-and-rotor kit. Verify compatibility with the cap, including DR429T in catalogued applications, and inspect the distributor shaft and advance mechanism.

Technical information

• type: distributor rotor
• series: Standard T-Series
• body material: phenolic plastic or high-grade polyester
• conductive element: metal
• centre-contact spring: stainless steel
• sales unit: 1 piece

Replace the rotor if the contact is burned, the body is cracked or carbon tracking is visible. Ensure it is fully seated and does not contact the cap.