Skip the auto shop - Our mechanics make house calls

How to Buy a Good Quality Rotor

Good quality rotor

The rotor exists to send power from your ignition coil over to your spark plugs – which make sure that your plugs ignite to start the fuel combustion process. Each time it goes around, the metal parts of the rotor are contacting the ignition coil’s central cable, which is incredibly high-voltage. Once it has come into contact with the ignition coil, then it transfers the electricity to the spark plugs.

Rotors are built for years of service, but just like everything mechanical, they will eventually break down and occasional misfires will turn into an everyday occurrence at which point it will be time for a replacement. If the rotor does not spin as it should, then the spark timing is interrupted which can lead to stalling of your vehicle. Your car may also be unable to turn over or start shaking dramatically.

Here are some precautions when looking for your new rotor:

  • Minimize over-arcing: Look for a rotor that minimizes over-arcing to ensure that the rotor gives you longer service.

  • OEM parts are best: OEM parts are best when you’re considering distributor rotors. This is because rotors are specific to your vehicle, and some aftermarket parts do not fit to the precise specifications that you need for a solid fit.

  • Brass rotors: Brass rotor contacts will not break easily, nor will they succumb to corrosion as brass is a tensile metal. Brass is also a better conductor of heat and energy than steel.

  • Steel rotors: Steel rotor parts resist fatigue longer and are much more durable than those made out of brass.

  • Warranty: Check the warranty on whichever kind of distributor rotor you decide upon, to ensure that you receive years of worry-free service from this expensive part.

No matter which material you choose, be sure you’re getting the highest quality possible as a poor rotor or a poor fitting rotor can be a detriment to your vehicle’s overall operation.

YourMechanic supplies top-quality rotors to our certified mobile technicians. We can also install a rotor that you've purchased. Click here to get a quote and more information on rotor replacement.

The statements expressed above are only for informational purposes and should be independently verified. Please see our terms of service for more details
Icon-warranty_badge-02

Skip the repair shop, our top-rated mechanics come to you.

At your home or office

Choose from 600+ repair, maintenance & diagnostic services. Our top-rated mechanics bring all parts & tools to your location.

Fair & transparent pricing

See labor & parts costs upfront, so you can book with confidence.

12-month, 12,000-mile warranty

Our services are backed by a 12-month, 12,000-mile warranty for your peace of mind.

Get A Quote

Need Help With Your Car?

Our certified mobile mechanics make house calls in over 2,000 U.S. cities. Fast, free online quotes for your car repair.

GET A QUOTE

More related articles

P0240 OBD-II Trouble Code: Turbocharger Boost Sensor B Circuit Range/Performance
P0240 code definition Turbocharger Boost Sensor B Circuit Range/Performance What the P0240 code means P0240 is an OBD-II generic code triggered when the Engine Control Module (ECM) detects the intake boost...
Veteran and Military Driver Laws and Benefits in Idaho
The state of Idaho offers a number of benefits and perks for those Americans who have either served in an Armed Forces branch in the...
What are the Car Pool Rules in Hawaii?
Hawaii is widely regarded as a land of vacation and relaxation, and as such, its scenic roads and routes are far better known than the state’s freeways. But, as with all...


Related questions

Q: Trouble starting, misfires, dies when you let off the gas.

It sounds like you have a real bad vacuum leak. After you replaced the radiator and hoses to get it running again check all the vacuum hoses to make sure there is no broke hose. If you find there...

Q: SUV getting only 15 mpg

It is possible that your tire pressures may be low and went unnoticed by the technician who last serviced your vehicle. I would recommend having your tire pressures checked because, if they are low, it could potentially cause both of...

Q: Slow start up on a Mazda RX-8

You say it starts. If it cranks normally then it is not the starter. But if it turns to a normal speed and it starts out driving normal, with a continuous rapid starting sound then that means the starter is...