Distributor Rotor for 1990-1997 Lexus LS400 & More - Standard Ignition JR-139

$10.99

Standard Ignition Distributor Rotor JR-139

Standard Ignition Distributor Rotor JR-139 - view 2

Standard Ignition Distributor Rotor JR-139 - view 3

Part number: JR-139

UPC: 091769085162

Condition: New

Weight: 0.23 LBS

Item Package Quantity: 1

$10.99

Current Stock: 356

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Standard Ignition Distributor Rotor P/N:JR-139

$10.99

Description

Send high-voltage spark to each cylinder in firing order with the Standard Ignition Distributor Rotor JR-139. It is a direct-fit replacement for the 1990-1997 Lexus LS400 and 1992-1997 Lexus SC400. See the "Vehicles it fits" section for engine details.

Standard Ignition is a global manufacturer of original equipment ignition products and controls quality through the entire manufacturing process, from componentry to the finished product. Its distributor caps and rotors draw on decades of research and development.

Dirt-resistant alkyd: High-grade dielectric strength alkyd resists dirt sticking. This is designed to decrease carbon tracking and extend service life.
Solid brass segments: Designed for better conductivity and a higher-voltage spark to the plugs.
Shaft retention clips: Used where the application requires them, for proper fit and performance.

The rotor turns with the distributor shaft and passes coil voltage to each cap terminal in turn. Signs it may need replacing include misfires, hard starting, rough running, or a burned, eroded or carbon-tracked tip. Other ignition components can cause the same symptoms, so diagnose the cause before replacing.

Interchange: 12-0191
120191 · D685 · JP917 · EP874 · 19017228 · 3921 · JR139T · 1910250020

Manufacturer's description

Product specs

Vehicles it fits

Interchange numbers

This part cross-references / interchanges with the following part numbers:

D685, JP917, EP874, 19017228, 12-0191, 3921, JR-139, JR139T, 1910250020

Buyer's Q&A

Frequently Asked Questions

What does a distributor rotor do?

It spins with the distributor shaft and passes high voltage from the coil to each cap terminal in turn. This sends spark to the correct plug wire in firing order.

Which vehicles does the JR-139 fit?

It is listed for the 1990-1997 Lexus LS400 and the 1992-1997 Lexus SC400. See the "Vehicles it fits" section for engine details.

What are signs a distributor rotor may need replacing?

Misfires, hard starting, rough running, or a burned, eroded or carbon-tracked tip may be signs. Other ignition parts cause similar symptoms, so diagnose the cause before replacing.

What are the JR-139's contact segments made of?

They are solid brass. Standard Ignition specifies brass for better conductivity and a higher-voltage spark to the plugs.

How does this rotor help reduce carbon tracking?

Standard Ignition uses a high-grade dielectric strength alkyd that resists dirt sticking. It is designed to decrease carbon tracking and extend service life.