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Ratchet Brake Caliper Piston Press Kit
This professional-grade brake caliper press is designed for ratchet-driven disc brake calipers, brake tool assemblies, and brake cylinder adjustments. Ideal for heavy-duty trucks and commercial vehicles, it supports single, dual, and four-piston systems, as well as single/dual-piston floating calipers. Excellently suited for automotive brake pump adjustments.
Ergonomic Design
• Ergonomically designed lever.
• Soft matte anti-slip rubber grip ensures balanced stress distribution and secure handling.
• Extended handle with dual-rivet design reduces fatigue and enhances efficiency.
2 BRAKE CALIPER HOOKS
Included are 2 brake caliper hooks for hanging brake calipers, brake hoses, and other components.
Anti-Slip Grip
• Biomimetic non-slip rubber texture with soft matte finish.
• Ergonomic curvature ensures balanced stress and slip-free operation.
Core Materials
• Key components precision-cast from No.45 special steel for strength and durability.
• Black oxidation surface treatment for rust and corrosion resistance.
• Dual reinforced push plates withstand prolonged high-pressure use, ensuring stable ratchet force output.
Technical Highlights
Mechanically optimized for maximum efficiency in compact designs. Specifically engineered for stubborn piston retraction, making it essential for heavy-duty brake system maintenance.
8 Core Applications
Brake pad replacement，Brake system upgrades，Dual-piston fixed caliper maintenance，Single-piston floating caliper adjustment，Piston forced reset，Brake system overhaul，Four-piston performance caliper tuning, Dual-piston floating caliper servicing.
RideOrDieGuy
Reviewed in the United States on May 9, 2025
I am a Contractor and Business Owner and I maintain all the vehicles in my fleet. I have wanted one of these for years and I am glad to have this one! I have one that runs off the compressor to compress the calipers and I am telling you that this tool is easier and faster and IT WORKS BETTER than the one connected to an air line. Plus no need for an air line! This tool is simple in concept but genius at the same time. I have seen many of these for sale on the marketplace but I am super happy with this one. It feels well built and robust. I like the dipped handles and it fits in every caliper I have tried it on. It is beefy in hand and doesn’t give the feeling of it being made cheaply. It is EASY to use and EASY to back off the pressure and remove from the caliper.All in all, I would recommend this one and I honestly wish I had it in my possession years ago! I would order this again if the need were to arise and I am happy with the tool. Keep a little WD, grease or oil on the threaded parts to prevent rust over time and this should last a lifetime for DIYers and also I see it lasting a good long long time in a shop setting as well. I’m usually not a fan of “generic” tooling but this one gets 2 thumbs up.
color creator
Reviewed in the United States on May 3, 2025
I ordered this $21 WowDIY caliper piston spreader set (Amazon ASIN B0F2SCP92C) to make it easier when I work on disc brakes. Specifically when you remove the old pads, they're a lot thinner overall than the new brake pucks, where you will always need to push the pistons back so that you can fit the new calipers onto the new brake disc (which is also thicker than the old disc - but not by as much as the brake pads will be).In addition, a specific problem I have is that I take my sweet time to do a brake job at home, where sometimes that allows the natural hydraulic pressures inside of the closed brake lines to force the pistons out while I'm doing something else with the pads out of the calipers. Since the spreader jaws are about the size and shape of a brake puck, the pistons will be forced backward evenly without tilting, which could damage the seals.This tool will keep the caliper pistons in place, and, if the pistons do push inward, this tool will separate them again. It's a nice touch that the s-hooks are provided to hang the calipers onto the springs so that you don't put stress on the rubber hydraulic lines to the calipers inside the wheel well.Overall, this WowDIY caliper piston spreader set simplifies disc brake work by holding pistons in place during pad changes and preventing them from extending unintentionally, and it includes s-hooks for relieving stress on brake lines. For more information, please see the included detailed photos. In explaining all of this, I hope this review helps you make a more informed decision.
Timothy Stilley
Reviewed in the United States on May 22, 2025
In the past, I've used pry bars and crowbars to compress the brake calipers. It works, but it's tiring and there is a chance that you could damage the calipers, the rotors or both.Having the right tools for the job makes a huge difference. The caliper compressor ratchets and presses the caliper pistons back in, so the caliper with the brand new brake pads slide perfectly back over the rotor. It's a neat little design that doesnt take up a lot of space. It also takes a LOT less effort than a crowbar.This set is sturdy and strong. I put off buying it for a long time because it's just not something I considered worth the money, but I wish I had long ago. It's not expensive and makes a huge difference.
Felix N.
Reviewed in the United States on May 18, 2025
This WowDIY Brake Caliper compression tool kit with the caliper hangers is everything other than a socket set to change the brakes on your vehicle. The compression tool works like a ratchet and has a switch to flip to expand or contract the tool. Before this, I had been using an old C-clamp and the old brake pads to compress, but this makes it so much easier and no having to align the c clamp just right. It’s also important to hang the calipers so they don’t hang by their brake lines which could cause issues.Helpful tip; ensure you take the cap off of the brake fluid reservoir before compressing the caliper back in as you’re also pushing fluid back through the lines and into the reservoir and if the lid is on, could cause some issues.
Kohl
Reviewed in the United States on May 10, 2025
I was raised to compress calipers with the one C-clamp that must not be lost, ever, by my Dad. That process works but can be a pain on some calipers. This device does make it easier to compress some of the odder shaped calipers they come out with now. I usually do my own brake pads as in most cases it is a simple process especially if you can leave the caliper attached and not have to let air into the lines with the joy of bleeding them later. Helps with that depending on if you can with the caliper to the vehicle and have enough free hose to get the pads in place. More of a learning curve for myself than I can to admit but after the second it seemed pretty straight forward.Nothing is "Pro" quality but seems to meet a good self mechanic level of quality. Looks like will last several personal vehicle changes.
A. Cao
Reviewed in the United States on May 10, 2025
I been a DYI mechanic for about 15 years and brakes are one of the things I do quite frequently. I have two tools I currently use and type brake caliper piston depresser as you turn an handle. The other tool is a cube that a person can use a 3/8 wrench to turn the piston back in. They work fine.However, this tool makes it easier The long handle allows you to use a ratcheting mechanism to press back the piston. Once you are done you can flip the switch and use the handle to close the paddles. It also comes with a hanger to allow you to hang the caliper. This is a nice tool to add to your tool chest and makes it a bit easier
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