GJYA2646Z Mazda SEAL & BOOT SET,CAL.-RR, Price: 22.52$, Weight: 0.261kg

Rear Brake Caliper Seal & Dust Boot Kit for Mazda

Restore confident stopping power on your Mazda 6/Atenza with this OEM-grade rear caliper rebuild kit. The inner piston seal holds hydraulic pressure, while the outer dust boot shields the piston and slides from water, grit, and road salt. Together they keep the caliper responsive and your pads wearing evenly .

Why it’s needed ⚙️

Heat cycles, age, and dirty brake fluid harden rubber. Replacing seals and boots stops fluid leaks, cures a spongy pedal, and prevents seized pistons—ideal during pad/rotor service or when rebuilding a sticky caliper.

How it works

The square-cut piston seal energizes under pressure to move the piston out; its elastic memory retracts the piston slightly for pad release. The boot locks into the grooves and keeps contaminants out while allowing smooth sliding.

If damaged

Expect fluid seepage, uneven pad wear, pulling, overheating, longer stopping distance, and possible ABS warnings. Ignoring it invites rust in the bore and costly caliper replacement.

Tech notes

Use clean DOT 3/4 fluid only. Lubricate slide pins with high-temp silicone grease. Install dry piston seals, seat boots fully, torque guide bolts to spec, then bleed the circuit. EPDM rubber matches OEM hardness and chemical resistance.

Compatibility

• Atenza Sedan/Sport
• Atenza Sport Wagon
• 6
• 6 Wagon