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18 Piece Universal Brake Wind Back Set


  • This brake tool set is designed for use on vehicles with rear disk brakes that require the brake piston to be rotated back into position.

  • This is a complete low-cost kit that will help you get the job done properly.

  • The included 13 adapters and both a right and left hand thrust bolt make the set compatible with most vehicles.

  • This kit includes a 3/8” drive adapter which can be used to drive the included 9 adapters as an alternative to the included thrust bolt.

  • The steel components are coated to help prevent rust and the set is housed in a blow molded plastic case. Instructions are included.


Model # MX2502

Number of Pieces: 18

Number of Adapters: 13

Adapter Sizes: (CTC = Center to Center)

0 - Single Pin GM Style - 2.4" ID - .215" Pin Diameter
2 - 3 Pin Style - .235" Pin Diameter - 1.7" Pin CTC
4 - 2 Pin Style - .195" Pin Diameter - .910" Pin CTC
6 - 2 Pin Style - .235" Pin Diameter - 1.3" Pin CTC
7 - 2 Pin Style - .235" Pin Diameter - 1.280 Pin CTC
8 - Single Pin GM Style - 1.8" ID - .215" Pin Diameter
9 - Single Pin GM Style - 2.0" ID - .215" Pin Diameter
A - 2 Pin Style - .155" Pin Diameter - .800" Pin CTC
E - 4 Pin Style - .195" Pin Diameter - .900" Pin CTC
F - 2 Pin Style - .155" Pin Diameter - 1.00" Pin CTC
K - 3 Pin Style - .310" Pin Diameter - 1.4" Pin CTC
M - 2 Pin Style - .215" Pin Diameter - .750" Pin CTC
N - Hex Style - .472" / 12mm Diameter 6 Point Hex

Material: Steel

Finish: Black Phosphate

Warranty: 1 year

Made in: China

Frequently Asked Questions

What is this kit for?

Rear parking brakes were for the most part always activated by a cable that engaged the rear brake shoes against the rear brake drums. In the last 20 years give or take, rear brake shoes have been phased out and replaced with the more modern hydraulic disk brake system. Unlike front brake calipers which are purely hydraulically activated, the rear calipers also need a way to be mechanically activated to function as a parking brake. Like a typical disk brake caliper, as the brake pads wear the piston becomes extended and must be retracted to install new pads. Because of the mechanical action, the rear brake pistons on most modern vehicles must be screwed back into the caliper. This is not required on front calipers because they are strictly hydraulic, so the pistons can be pressed straight back into the caliper. The Motivx Tools brake wind back set properly retracts the pistons by rotating them while applying pressure.  

How do I know if I need this kit?

If you have a vehicle with rear disk brakes, you will probably need either this 18pc set or our 12pc set to service the brake system. The best way to tell (without starting the job and having to stop) is to look in a service manual or online forum for your particular vehicle. Another good resource is searching YouTube for your vehicle and adding the words "rear brakes". There are many tutorial videos that will show you how the rear brake job is done on your vehicle and you'll know if you need to wind the pistons back or not.

What's the difference between this 18 piece set and the MX2501 12 piece set?

The biggest difference is that this set contains two thrust bolts instead of one, and the second thrust bolt is left hand thread. The thrust bolt is the long screw or bolt looking piece that drives the adapter. There are some (very few) vehicles that will require one of the rear caliper pistons to be rotated back in the right hand direction and other one that will require the left hand direction. This 18 piece set also contains more adapters for less common vehicles. If you're not sure which set you need, I would highly recommend picking up this set over the 12 piece one. The cost isn't much more and you'll have the additional pieces in case you need them.

I've never used a set like this before, are there instructions?

Yes! We've included detailed instructions with photos on exactly how the set is supposed to be used.

Have A Question?

Call 833-466-8489 from 9am - 5pm PST Mon-Fri and talk to a REAL LIVE PERSON. Or write us at and we'll respond promptly.

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Kate S.
United States

We are pleased we purchased

We are pleased we purchased this item. Our car requires this particular type of tool. We know it is a good item and we will let you know when we use it. Thanks

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