Toyota Prius Brake Discs: Specs, Fitment & Wear Symptoms
A genuinely useful myth worth correcting: discs don't actually "warp" — plus a counterintuitive fact: rear discs on a hybrid can corrode more than the fronts.
Illustration for editorial purposes
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OEM Part Number: 43512-47040 (genuine front disc — confirm via VIN) — aftermarket front discs Brembo 09.D510.11 / Bosch 0 986 479 F72
| Front brake discs (aftermarket) | Brembo 09.D510.11 (255 x 25 mm, vented, 5 holes, coated, min 22 mm); Bosch 0 986 479 F72 (255 x 25 mm, vented, 5 holes, coated, high-carbon, min 22 mm, ECE-R90); TRW DF6734 (255 x 25 mm, vented, 5 holes, painted black, min 22 mm); Textar 92301703 (255 x 25 mm, vented, 5 holes, coated, min 22 mm); Delphi BG5017C (255 x 25 mm, vented, 5 holes, coated, R90); Blue Print ADBP430029 (255 x 25 mm, vented, 5 holes, coated, min 22 mm); Pagid 56017NC (255 x 25 mm, vented, 5 holes, coated, min 22 mm). |
|---|---|
| Disc sizes & variants | one front size only, 255 x 25 mm vented, 5-stud on a 100 mm PCD with a 55 mm centre bore. |
| Genuine (OE) numbers quoted | 43512-47040 (genuine front disc number for this model — confirm via VIN, as several disc sizes exist) |
| Fitment notes | Minimum thickness 22 mm. the other 255 mm discs are front fitments by size, as the rear disc is the 259 mm solid type. |
A Genuinely Useful Myth Worth Correcting: Discs Don't Actually "Warp" — Toyota Prius 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: discs don't actually physically warp or bend. 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. A common cause worth knowing: holding the brake pedal down while stationary immediately after hard braking, rather than releasing it once stopped, keeps heat concentrated in one spot and encourages exactly this kind of uneven deposit.
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 — a firm, deliberate application of the accelerator followed by a couple of firm brake applications once moving typically clears this within a few hundred metres.
Toyota Prius Brake Discs: The Part That Pads Depend On
On the Toyota Prius, discs and pads work as a pair, and neglecting one tends to accelerate wear on the other — which is exactly why worn discs so often get discovered during what was meant to be a routine pad change.
Toyota Prius Brake Discs: Watch: Replacing It
Covers the 2016-on generation, pads and rotors.
Toyota Prius 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 Prius typically use bigger discs than standard versions to handle the additional heat generated by more aggressive braking.
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Toyota Prius 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.