Help route ignition spark to each cylinder in firing order with the Standard Ignition Distributor Rotor, part number JR-190. It is a direct-fit replacement for many vehicles, among them the 1999-2004 Nissan Frontier 3.3L, 1996-2000 Nissan Pathfinder 3.3L and 2000-2004 Nissan Xterra 3.3L; see the "Vehicles it fits" section for the full list.
The rotor sits on the distributor shaft under the cap and turns with it. As it spins, it carries high-voltage current from the center of the cap to each outer terminal in turn. This sends spark down the correct plug wire.
- Part type: Distributor rotor
- Engine: V6-3.3L
- Quantity per application: 1 on each listed vehicle
- Part number: JR-190 (also written JR190)
Signs a rotor may need replacing: The rotor may need replacing if you notice misfires, rough running, hard starting, a no-start condition, or a tip that looks burned, pitted or cracked. These symptoms can have other causes, so diagnose the ignition system before replacing parts. Spark jumps between the rotor tip and the cap terminals and wears both over time. For this reason, many technicians check the distributor cap during the same service.
Frequently Asked Questions
What does a distributor rotor do?
It turns with the distributor shaft and carries high-voltage current from the center of the cap to each outer terminal in turn, so spark reaches the correct plug wire in firing order.
Which vehicles does the JR-190 fit?
It fits many vehicles, among them the 1999-2004 Nissan Frontier 3.3L, 1996-2000 Nissan Pathfinder 3.3L and 2000-2004 Nissan Xterra 3.3L. See the "Vehicles it fits" section for the full list.
How many rotors do I need?
Each listed application uses one rotor, so a single JR-190 covers one vehicle.
What are signs of a failing distributor rotor?
Possible signs include misfires, rough running, hard starting or a no-start, and a burned or cracked tip. These can have other causes, so diagnose the ignition system first.
Should I replace the distributor cap at the same time?
Spark jumping between the rotor tip and cap terminals wears both, so many technicians inspect or replace the cap along with the rotor. Follow your vehicle's service information.
