Quick answer: Front Brake Caliper Replacement on a 2016–2024 Mazda CX-9 is rated Advanced and takes about 2-3 hours. You'll need 8 tools for this job, and parts cost about $380. This guide walks you through the full job step by step, including the mistakes to avoid.
| Part Name |
Part Number |
Price |
Buy |
| Front Brake Caliper |
W0133-1910190 |
$150.00 |
|
| Front Brake Pads |
DP41606C |
$100.00 |
|
| Front Brake Rotors |
— |
$120.00 |
|
| Brake Fluid |
— |
$10.00 |
|
| Copper crush washers (banjo bolt) |
— |
— |
|
About prices: shown prices are typical retail averages and change frequently; cheaper alternatives may be available. Confirm the current price before buying.
💡 Pro tip: Order all parts at once to save on shipping
Step-by-Step Instructions
Follow these steps carefully
1
Loosen lugs and raise the vehicle
The 2016–2024 Mazda CX-9 (2nd generation) in this guide needs a FRONT BRAKE CALIPER REPLACEMENT — not just pads. This is a hydraulic system job. The CX-9 uses dual-piston front calipers (OEM: TKY8-33-98ZA right / TKY8-33-99ZA left — shared with the 2019+ CX-5 2.5T). You'll need: new caliper, brake fluid (DOT 3 — verify), flare nut wrench for the banjo bolt, new copper crush washers, 8mm wrench for the bleeder, bleeding kit. The CX-9 is a large 3-row SUV — use high-capacity jack stands. Have a drain pan ready. You'll be opening the hydraulic system, so bleeding is mandatory afterward.
🔧 Mechanic's note — Tom Becker
I loosen the CX-9 lugs and raise it onto stands — never just the jack — with chocks on the rear wheels. Caliper work means I am pulling hard, and I want the car to feel like part of the floor.
2
Remove the wheel
Remove the front wheel. Using a flare nut wrench (not a regular open-end), loosen the banjo bolt. Do NOT let the caliper hang by the brake hose. The CX-9's dual-piston caliper is heavy — support it.
3
Inspect the bracket, slide pins, and rotor with the old caliper off
With the old caliper off, inspect the bracket, slide pins, and rotor. The CX-9's dual-piston caliper has higher torque values than single-piston Mazdas: slide-pin bolts are 62–68 ft-lbs (owner-reported, much higher than the 23–28 ft-lbs on single-piston models). Note the pin positions. Inspect the rotor for scoring. Check the brake hose for cracking — if deteriorated, replace it now while the system is open. The CX-9's front brakes do heavy work on this 4,300+ lb SUV — inspect thoroughly.
🔧 Mechanic's note — Ray Delgado
I remove the CX-9 caliper and I will tighten the bracket bolts in stages — snug both, torque both. I have seen a caliper bracket warp from one-sided tightening, and the pads taper-wear within months.
4
Install the new caliper and reconnect the brake hose
Prepare the NEW dual-piston caliper: verify the bleeder valve is on TOP when mounted (if it's on the bottom, it's upside down). The bleeder takes an 8mm wrench. Install the caliper onto the bracket — ensure the slide pins are in their correct positions. Torque the bracket bolts (owner-reported 68–81 ft-lbs for this dual-piston design — verify against Mazda service info). Reconnect the brake hose with NEW copper crush washers on the banjo bolt (always use new washers). Torque the banjo bolt to Mazda spec. Ensure the hose isn't twisted.
5
Install the new pads and slide the caliper onto the bracket
Install new pads into the caliper bracket (since you're replacing the caliper, install new pads too — don't reuse old pads on a new caliper). Slide the caliper (with new pads) over the rotor and onto the bracket. Reinstall the slide-pin bolts — torque to 62–68 ft-lbs (owner-reported for the dual-piston; verify). Ensure the pins slide freely. Double-check: bleeder on top, banjo bolt tight with new washers, hose not kinked, pads seated. Remove the hose plug and verify the connection is secure.
6
Inspect the piston boots and check the caliper
Do not cock them. If they don't, the new caliper is defective — don't install it. Ensure the piston boots are intact. This is a new caliper, so the pistons should be in the fully retracted position from the factory.
7
Pump the pedal and check for leaks
Pump the brake pedal several times — it will go to the floor initially until the pistons extend. Double-check for leaks at the banjo bolt and bleeder.
8
Bleed the brakes, lower the vehicle, and test drive
Bleed order: furthest from master cylinder first (passenger rear, driver rear, passenger front, driver front). Have a helper pump the pedal while you open/close the 8mm bleeder, or use a vacuum bleeder. Lower the vehicle. Test drive cautiously: verify firm pedal, no pulling.
🔧 Mechanic's note — Ray Delgado
I refit the CX-9 wheel and pump the pedal — then I bleed the caliper properly. I have seen a soft pedal from trapped air after a caliper swap, and I bleed until the pedal is firm because air is the usual suspect.
All Done!
Test your repair before closing everything up. If something doesn't work right, double-check your steps.
⚠️ Common Mistakes to Avoid
- • Not properly supporting the vehicle with jack stands before starting the repair.
- • Failing to clean the brake components before installation, leading to reduced braking efficiency.
- • Over-tightening caliper bolts, which can damage the caliper or bracket.
