At the heart of Toyota's renowned reputation for safety and durability lies its braking systems, with the humble yet critical brake disc (or rotor) playing a starring role. Toyota designs its brake discs to deliver consistent, fade-resistant stopping power across diverse driving conditions – from daily commutes in a Corolla to demanding off-road journeys in a Land Cruiser – while prioritizing longevity, quiet operation, and value.

Common Toyota Brake Disc Models & Applications (Examples):

Important Note: Specific part numbers vary significantly by model year, trim level, engine size, region, and whether the vehicle has standard or optional larger brakes. Always verify using the VIN or Toyota's official parts catalog. These are illustrative examples of popular models and typical disc types:

1. 43512-XXXXX Series: Very common for Camry front discs (e.g., 43512-06170, 43512-33040 - vented). Variations exist for different years and engine/brake packages.

2. 43512-0XXXX / 42431-XXXXX Series: Frequently used for RAV4 front discs (e.g., 43512-42020, 42431-42420 - vented).

3. 42431-XXXXX / 42431-XXXXX Series: Common for Highlander front discs (e.g., 42431-08070, 42431-0E030 - vented). Larger engines often require specific, heavier-duty discs.

4. 43512-XXXXX / 42431-XXXXX Series: Found on Tacoma front axles (e.g., 43512-04080, 42431-04080 - vented). Off-road trims may have different specs.

5. 42431-XXXXX Series: Typical for 4Runner front discs (e.g., 42431-35170, 42431-35300 - vented), designed for heavier loads and potential off-road heat.

6. 42431-XXXXX / 43512-XXXXX Series: Used for Sienna front discs (e.g., 42431-08060, 43512-08070 - vented).

7. 42611-XXXXX / 42610-XXXXX Series: Representative of REAR discs (often solid, sometimes vented on larger SUVs/trucks). E.g., Camry rear (42611-06150 - solid), RAV4 rear (42611-42420 - solid), Highlander rear (42611-48150 - sometimes vented on AWD/V6 models).

8. TRD Performance Discs: Toyota Racing Development offers upgraded performance rotors (often slotted) for select models like the Tacoma TRD Pro, 4Runner TRD Pro, and Supra (e.g., PTR20-35170 for Tacoma front). These enhance heat dissipation and bite, especially when paired with TRD pads.

9. Prius Specific: Hybrids like the Prius often use specific discs optimized for regenerative braking integration and reduced drag (e.g., 43512-47050 front vented, 42611-47080 rear solid).

   Maintenance & Replacement:
   Toyota brake discs are designed for longevity but are wear items. Replacement intervals vary massively based on driving style, environment, and vehicle weight (typically 50,000 - 100,000+ miles). Signs of needing replacement include:

   • Scoring/grooving beyond minimum spec

   • Thickness worn below the minimum discard value (stamped on disc edge)

   • Severe rust pitting on the friction surface

   • Excessive lateral runout causing brake pulsation

   • Warping causing vibration under braking
     Discs are usually replaced in pairs per axle. Toyota always recommends using brake discs meeting their strict specifications.