Standard Ignition JR-115 Distributor Rotor

Distributor Rotor for Ignition Service

The Standard Ignition JR-115 distributor rotor is a push-on replacement rotor built for distributor and magneto ignition systems. It uses an aluminum contact material with a black plastic body for straightforward service replacement on select applications.

Key Features

• Part number JR-115 from Standard Ignition
• Push-on mount type for direct rotor installation
• Aluminum contact material for distributor contact transfer
• Black finish with plastic rotor construction
• Designed for ignition distributor and magneto service

Detailed Product Overview

Standard Ignition JR-115 is a distributor rotor intended for ignition system maintenance where a push-on rotor design is specified. The aluminum contact surface and plastic rotor body are selected for standard distributor operation, while the black finish provides a clean OE-style appearance. When replacing a worn rotor in a distributor ignition setup, JR-115 helps restore proper spark routing through the distributor cap.

This part cross-references D642 and EP774 for the same application. Search terms such as Standard Ignition JR-115 distributor rotor, push-on ignition rotor, and distributor rotor replacement for ignition service are commonly used by buyers looking for this type of component.

What It Helps Address

• Misfiring caused by a worn or damaged distributor rotor
• Weak or inconsistent spark transfer inside the distributor
• Ignition performance loss from rotor contact wear
• Starting issues related to distributor ignition wear
• Service replacement needs for distributor and magneto systems

Installation Notes and Tips

Confirm the distributor rotor uses a push-on mount before installation. Inspect the distributor cap, shaft, and terminals for wear or carbon tracking at the same time, since rotor replacement is often part of a broader ignition tune-up. Verify application details against the vehicle’s ignition system requirements before ordering.

Quality Assurance

Standard Ignition is a recognized name in ignition components, and JR-115 is built as a service replacement part for distributor ignition applications. Use the part number JR-115 when matching the rotor to the correct ignition setup.