How to Buy a 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.


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Recent Distributor Cap and Rotor Replacement reviews

Excellent Rating

(238)

Rating Summary
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Jason

23 years of experience
190 reviews
Jason
23 years of experience
Honda Civic L4-1.6L - Distributor Rotor and Cap - Nashville, Tennessee
Again, awesome service with Jason! He did a thorough job and got my car up and running, while also giving me useful information for keeping it in shape. I would definitely recommend him anytime!
Chevrolet Express 1500 - Distributor Rotor and Cap - Nashville, Tennessee
Effective and professional great to work with will always ask for Jason great job van runs better than ever thank you for your help

Jason

32 years of experience
507 reviews
Jason
32 years of experience
Nissan Frontier V6-3.3L - Distributor Rotor and Cap - San Jose, California
He came a little earlier than expected & is very efficient. He explains what he does & needs to be done.

Tim

15 years of experience
57 reviews
Tim
15 years of experience
Dodge Ram 1500 V8-5.9L - Distributor Rotor and Cap - Battle Ground, Washington
Tim and his father in law did a great job working on my truck. Thanks for your services. My invoice was incorrect for the oil change because I never got one done and I purchased my own Distributor Cap with Rotor and Coil. Your Mechanic only provided me parts for my Spark Plugs n Spark plug wires. But Tim said he fixed my invoice and I believe he will.

Matthew

15 years of experience
20 reviews
Matthew
15 years of experience
Chevrolet Express 1500 V6-4.3L - Distributor Rotor and Cap - Dayton, Ohio
Matthew (goes by Jake) was excellent, as was our experience with Your Mechanic. We booked on a Thursday and he came to us on Friday, and then he came back for follow-up services on Monday and Tuesday. He was knowledgeable about all of our vehicles and was very willing to show and talk about the services that he provided. We will definitely book him again!

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