Toyota Yaris Brake Discs: Specs, Fitment & Wear Symptoms
A genuinely useful myth worth correcting: discs don't actually "warp" — plus a genuinely counterintuitive fact for hybrids, where rear discs can corrode more than the fronts.
Illustration for editorial purposes
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OEM Part Number: 43512-52050 (genuine front disc — confirm via VIN) — aftermarket front discs Brembo 09.A913.11 / ATE 24.0122-0240.1
| Front brake discs (aftermarket) | Brembo 09.A913.11 (258 x 22 mm, vented, 4 holes, coated, min 20 mm); ATE 24.0122-0240.1 (258 x 22 mm, vented, 4 holes, coated, min 20 mm, E1 90R-02C0115/0204); ATE 24.0122-0311.1 (280 x 22 mm, vented, 4 holes, coated, min 20 mm, E1 90R-02C0115/1125); Brembo 09.D573.11 (280 x 22 mm, vented, 4 holes, coated, min 20 mm); Mapco 45575 (275 x 22 mm, vented, 4 holes, min 19 mm); Ridex 82B0402 (235 x 18 mm, vented, 4 holes, uncoated cast iron, min 16 mm). |
|---|---|
| Disc sizes & variants | the 275/280 x 22 mm disc (quoted as 275 mm by Mapco and 280 mm by ATE and Brembo, the same part) is fitted to the Yaris Hybrid and to later 1.5-litre cars. The 235 x 18 mm Ridex and Stark discs are an older small-disc size and should be treated with caution for an XP130. |
| Genuine (OE) numbers quoted | 43512-52050 (genuine front disc number for this model — confirm via VIN, as several disc sizes exist) |
| Fitment notes | All front discs are 4-stud. Minimum thickness 20 mm on the 22 mm discs. No TRW, Ferodo, Textar, Zimmermann or Delphi front discs were listed. |
A Genuinely Useful Myth Worth Correcting: Discs Don't Actually "Warp" — Toyota Yaris Brake Discs
If you're feeling a pulsing sensation through the brake pedal and have been told the discs have "warped," this is genuinely worth understanding properly: discs don't actually physically warp or bend in the way the term suggests. What's really happening is that pad material transfers unevenly onto the disc surface, creating slightly higher and lower points around the circumference — this is what you feel as pulsing, not physical distortion of the disc itself. A common, genuine cause worth knowing: holding the brake pedal down while stationary immediately after hard braking, rather than releasing it once the car has stopped, keeps heat concentrated in one spot and encourages exactly this kind of uneven deposit. Simply changing this habit can prevent it recurring even without replacing the discs.
It's also worth knowing that a car left standing overnight with heavily corroded discs can occasionally feel genuinely stuck when trying to pull away, particularly uphill — a firm, deliberate application of the accelerator to break through the initial resistance, followed by a couple of firm brake applications once moving, typically clears this entirely within a few hundred metres.
Toyota Yaris Brake Discs: The Part That Pads Depend On
On the Toyota Yaris, because discs and pads wear as a pair, neglecting one speeds up wear on the other — which explains why a routine pad change so often turns up discs that are further gone than expected.
Toyota Yaris Brake Discs: Watch: Replacing It
Covers XP130 years; x0NUcHScK60 (Autodoc Yaris Mk2 discs) is older gen alt.
Toyota Yaris Brake Discs: What They Do
Brake discs provide the surface the brake pads clamp against to slow the car, converting momentum into heat through friction. Larger, sportier trims of the Yaris typically use bigger discs than standard versions to handle the additional heat generated by more aggressive braking.
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Toyota Yaris Brake Discs: Wear Symptoms, DIY Difficulty & Aftermarket Advice
These are the same regardless of make or model — see our full Brake Discs Guide for warning signs to watch for, confirming fitment against your VIN, and choosing a reliable aftermarket disc.
More Toyota Brake Discs
The same part, covered across other Toyota models.