Toyota Crown Big Brake Kit Upgrade / TTSPORT Classic 5440
The redesigned Toyota Crown grew longer and wider than the outgoing car, with more cabin room and a heavier, more substantial platform overall. That extra mass puts more demand on the factory brakes, and a soft, sponge-feeling pedal isn't much fun to live with on a car this size. This owner swapped in a TTSPORT big brake kit — front and rear — to get a firmer pedal and more consistent stopping power under the Crown's stock 18-inch wheels.
The front corners were built around the TTSPORT Classic 5440 — a forged four-piston caliper — matched to a 330x28mm high-carbon heat-treated slotted rotor. Out back, the car runs a TTSPORT 7609 cast four-piston caliper with a 330x24mm high-carbon heat-treated slotted rotor and stainless steel brake lines.
Vehicle & Kit Specs
| Item | Specification |
|---|---|
| Vehicle | Toyota Crown, 18-inch factory wheels |
| Front caliper | TTSPORT 5440 forged four-piston caliper (Classic Series) |
| Front rotor | TTSPORT 330x28mm high-carbon heat-treated slotted rotor |
| Rear caliper | TTSPORT 7609 cast two-piece four-piston caliper |
| Rear rotor | TTSPORT 330x24mm high-carbon heat-treated slotted rotor |
| Pads / lines | High-temperature ceramic pads (front and rear), stainless steel brake lines |
The front TT5440 caliper is the centerpiece of this build, so here's the official spec sheet for that part:
| Brake Caliper | |
|---|---|
| Series | Classic Series |
| Model / Application | 5440 |
| Axle Position | Front |
| Piston Count | 4-piston |
| Piston Type | Star-profile racing pistons without dust boots |
| Piston Diameter | 38 mm × 2 / 41 mm × 2 |
| Caliper Dimensions | L 276 mm × W 138 mm × H 80 mm |
| Total Piston Area | 49.1 cm² per caliper, all pistons combined |
| Manufacturing Process | Two-piece forged aluminum body |
| Net Weight | 2.65 kg per caliper, without pads |
| Surface Finish | High-temperature gloss coating |
| Recommended Wheel Size | 17 in or larger |
| Recommended Rotor Size | Ø330–345 mm × 28 mm |
| Fitment & Installation | |
| Minimum Spoke Clearance (mm) | 86 |
| Caliper Mounting Type | Radial mount with vehicle-specific caliper brackets |
| Brake Line Fitting Type | Vehicle-specific fittings; caliper-side and chassis-side fittings vary by application |
The 5440's two-piece forged aluminum body keeps weight down while adding rigidity and heat dissipation compared to a stock single-piston sliding caliper. It's matched to the 330mm high-carbon slotted rotor and high-temperature ceramic pads to help keep noise and dust in check.
Why It Works
A stock floating caliper flexes under load, which is a big part of why a factory pedal can feel vague or mushy. Swapping to a forged fixed caliper up front removes most of that flex, so pedal input translates more directly into clamping force.
- Forged four-piston front caliper resists flex for a firmer, more consistent pedal
- 330mm high-carbon heat-treated rotors front and rear add mass and heat capacity over the stock discs
- High-temperature ceramic pads front and rear help control noise and brake dust
- Stainless steel brake lines resist expansion under pressure, keeping pedal feel more direct than rubber lines
- Kit was fitted to run behind the Crown's factory 18-inch wheels
Installation Gallery
Once everything was buttoned up and test-driven, the owner reported a lighter, more responsive takeoff and a pedal that felt firm and progressive rather than soft — a noticeable step up from the factory setup.
FAQ
What TTSPORT brake kit was installed on this Toyota Crown?
What pad material does this kit use?
What wheel size was this kit fitted with?
Need fitment confirmation? Choose the closest TTSPORT series or send your vehicle, wheel size, and intended use before ordering.