Standard Ignition JR-156 Distributor Rotor

Distributor Rotor for Toyota and Lexus Applications

Standard Ignition JR-156 is a bolt-on distributor rotor built with a plastic rotor body and brass contact material. It is listed for select Toyota Supra, Lexus GS300, and Lexus SC300 applications, making it a direct replacement option for distributor service on covered vehicles.

Key Features

• Bolt-on mount type for straightforward distributor rotor replacement
• Brass contact material for consistent electrical transfer
• Plastic rotor construction
• Black finish
• Contents: distributor rotor
• Standard Ignition JR-156 part number for catalog matching

Detailed Description

Standard Ignition JR-156 is a distributor rotor for ignition distributor and magneto service. The brass contact helps maintain reliable spark routing through the distributor, while the plastic rotor body and black finish provide a service-ready replacement component for routine ignition maintenance. This part is listed for 1994-1998 Toyota Supra, 1993-1997 Lexus GS300, and 1992-1997 Lexus SC300 applications. This part cross-references two common aftermarket numbers, including 4R1176 and D705, for the same application.

What It Helps Address

• Engine misfire caused by worn rotor contact surfaces
• Hard starting related to weak distributor spark transfer
• Rough idle from inconsistent ignition routing
• Ignition performance loss from cracked or deteriorated rotor material
• Service replacement for aging distributor components on Toyota Supra and Lexus GS300/SC300 models

Installation Notes and Tips

Verify distributor style and part number before installation. The bolt-on design should be matched to the existing distributor configuration, and the rotor contact area should be inspected for wear, corrosion, or carbon tracking during service. Clean the distributor interior before installing the new rotor to help maintain proper ignition performance.

Quality Assurance

Standard Ignition supplies ignition service parts for distributor repair and replacement applications. JR-156 is built to match the listed fitment and component style for covered Toyota and Lexus vehicles.