Brake Rotor Size

[31Regal]

After a short road trip in my '16 Premium, i noticed vibration when braking. I want to go ahead and replace the rotors and pads. When I went to my auto parts store they had three different sizes. How could i find out the size of my rotors? and does the different sizes matter?

 

[MelsRegal]

They only made two sizes for the front with or without Brembo brakes.
You do not have Brembo brakes so it would be the smaller size 12.6" diameter.

 

[-Regal-]

Highly recommended and the only brake parts I could find made in the western hemisphere:

https://www.summitracing.com/parts/ebc-s12kf1499/make/buick/model/regal/year/2016

They make too many kits for me to list but that is the one I bought and am more than happy with. This kit for your car has 12.6" diameter rotors. Here are some others listed for your car with that should only show 12.6" diameter rotors (but confirm in item descriptions). Without specifying 12.6" they also listed some that were actually smaller than that for your car? 🤷‍♂️

https://www.summitracing.com/search/year/2016/make/buick/model/regal?SortBy=BestKeywordMatch&SortOrder=Ascending&keyword=ebc%20kit%2012.6

Installed on my car:

 

[31Regal]

@Regal LTD Coupe Thanks! Did you ever replace the rear rotors or did you leave them as is?

 

[MelsRegal]

@Regal LTD Coupe Thanks! Did you ever replace the rear rotors or did you leave them as is?

Where do you feel the vibration, only in the steering wheel or also in the seat?

 

[HotZ28]

The last rotors you will ever need! Comes with a 15% rebate! Also, use the code shown below for another 5% discount. 😉

More Information for POWER STOP K533426

2016 BUICK REGAL 2.0L L4 Turbocharged Rotor & Brake Pad Kit | RockAuto

RockAuto ships auto parts and body parts from over 300 manufacturers to customers' doors worldwide, all at warehouse prices. Easy to use parts catalog.

www.rockauto.com

Code: 169165908101273235
Using your discount code is easy! Enter your discount code in the 'How Did You Hear About Us?' box without any other numbers or characters for an additional 5% savings. Discounts cannot be applied to shipping, gift certificates, or to an order once it is marked as shipped.
Your code expires on May 30, 2021, 12:00 Midnight CT, so do not wait!

 

[-Regal-]

@Regal LTD Coupe Thanks! Did you ever replace the rear rotors or did you leave them as is?

No but in hindsight I probably should have bought a rear kit also. I actually went underboard for the rears, installing a locally obtained but domestically manufactured NOS set of metallic pads from someone who had bought a lot of brake parts at auction years ago and was selling them out of his garage. I had also obtained and used a pair of these pads on the front temporarily while waiting for that brake kit and they weren't fantastic though at that point the existing front rotors were pretty shot so they might not have been seating properly. I did not plan on replacing the rear calipers but one of them pushed the piston out upon removal so I had no choice, and it ended up being that they really needed replacement anyways as one of them was prematurely wearing the pads out. I had planned to turn the rear rotors but found them in fine enough shape that I didn't bother. Brakes are excellent now but I am curious if they'd be much better had I installed the rear kit and maybe went for new front calipers.

 

[MarkMc00]

The last rotors you will ever need! Comes with a 15% rebate! Also, use the code shown below for another 5% discount. 😉

More Information for POWER STOP K533426

2016 BUICK REGAL 2.0L L4 Turbocharged Rotor & Brake Pad Kit | RockAuto

RockAuto ships auto parts and body parts from over 300 manufacturers to customers' doors worldwide, all at warehouse prices. Easy to use parts catalog.

www.rockauto.com

Code: 169165908101273235
Using your discount code is easy! Enter your discount code in the 'How Did You Hear About Us?' box without any other numbers or characters for an additional 5% savings. Discounts cannot be applied to shipping, gift certificates, or to an order once it is marked as shipped.
Your code expires on May 30, 2021, 12:00 Midnight CT, so do not wait!

Thanks for the Rock Auto discount code. Saved me $3 on my order. Now I can buy that new car I've been wanting!

 

[Rickisrad]

I installed the Powerstop Drilled and Slotted front and rear Z23 pad and rotor set on my 2017 Sport Touring and they are awesome!! They made a huge difference in stopping and are quiet. They look good through the wheels as well. I have installed Powerstop on at least 4 of my cars and have not been disappointed yet.

 

[Mad_Coachman]

The last rotors you will ever need! Comes with a 15% rebate! Also, use the code shown below for another 5% discount. 😉

More Information for POWER STOP K533426

2016 BUICK REGAL 2.0L L4 Turbocharged Rotor & Brake Pad Kit | RockAuto

RockAuto ships auto parts and body parts from over 300 manufacturers to customers' doors worldwide, all at warehouse prices. Easy to use parts catalog.

www.rockauto.com

Code: 169165908101273235
Using your discount code is easy! Enter your discount code in the 'How Did You Hear About Us?' box without any other numbers or characters for an additional 5% savings. Discounts cannot be applied to shipping, gift certificates, or to an order once it is marked as shipped.
Your code expires on May 30, 2021, 12:00 Midnight CT, so do not wait!

The latest code is: 170023886155148046