Standard Ignition JR-197 Distributor Rotor

Distributor Rotor for Nissan Sentra and 310

Standard Ignition JR-197 is a distributor rotor built for specific Nissan ignition applications. It uses a push-on mount, a plastic rotor body, and brass contact material to support consistent distributor operation in the listed vehicles.

Key Features

• Push-on mount for direct distributor rotor installation
• Plastic rotor material with gray finish
• Brass contact material for reliable electrical transfer
• Includes distributor rotor only
• Direct replacement for Standard Ignition JR-197 applications

Detailed Description

This Standard Ignition distributor rotor, part number JR-197, is specified for 1982 Nissan 310 and 1982-1985 Nissan Sentra applications, including 1984-1985 Nissan Sentra with Canada Emissions or Calif. Emissions. As a distributor rotor, it transfers ignition energy through the distributor cap to the correct cylinder at the proper time. The brass contact design and push-on fitment support accurate rotor placement in the distributor assembly. This part cross-references Denso EP848 for the same application.

What It Helps Address

• Engine misfire caused by worn rotor contacts
• Hard starting related to weak distributor spark transfer
• Rough idle from inconsistent ignition timing delivery
• Ignition performance loss from cracked or deteriorated rotor material
• Distributor service needs on Nissan Sentra and Nissan 310 models

Installation Notes and Tips

Verify distributor cap condition before installation and inspect the rotor shaft area for wear, corrosion, or carbon tracking. The push-on mount should seat fully on the distributor shaft without forcing. Confirm vehicle fitment by year, model, and emissions notes before ordering a Nissan Sentra distributor rotor or Nissan 310 ignition replacement.

Quality Assurance

Standard Ignition supplies this JR-197 distributor rotor as a replacement ignition component for the listed applications. Fitment is confirmed for 1982 Nissan 310 and 1982-1985 Nissan Sentra, including the specified emissions-equipped Sentra models.