Catalog

TOYOTA/LEXUS 4351248081 BRAKE DISC

TOYOTA/LEXUS 4351248081 BRAKE DISC

Product Specifications

Product quality
OEM Equivalent Grade
starstarstar
Wholesale price USD $12.81
Wholesale price CNY ¥87.6
bolt MOQ (Minimal order)
1 pcs
local_shipping Production time
50-55 days
package_2 Shipping Weight: —
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TOYOTA/LEXUS 4351248081
TOYOTA/LEXUS 435120E021
TOYOTA/LEXUS 435120E010
TOYOTA/LEXUS 4351248100
TOYOTA/LEXUS 4351248080
TOYOTA/LEXUS 435120E020
TOYOTA/LEXUS 4351248090
MILES K001627
MILES K201627
Overview & Operating Principle
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The BRAKE DISC is a cast iron or composite friction surface that rotates with the wheel hub and is clamped by the brake caliper pads to convert kinetic energy into heat through friction. Ventilated discs — the standard design on front axles and performance rear axles — incorporate internal radial vanes between two friction faces that draw cooling air through the disc during rotation, reducing thermal load and fade resistance under repeated heavy braking. Solid discs are used on lower-load rear axle applications where thermal demands are lower.

This unit — TOYOTA/LEXUS 4351248081 — is manufactured to OEM-equivalent specifications: disc diameter, minimum and nominal thickness, hat height, bolt circle diameter (BCD), centre bore, and vane geometry are matched to the original part. Supplied as a direct bolt-on replacement requiring no caliper or hub modification for standard fitment. Available wholesale from 12.81 USD, MOQ 1 pcs, production lead time 50-55 days.

Brake discs wear through friction surface erosion and thermal fatigue. The critical limit is minimum disc thickness — stamped on the disc hat or specified in the vehicle service manual. A disc worn below minimum thickness has insufficient thermal mass to absorb braking energy safely and must be replaced regardless of surface condition. Always replace discs in axle pairs to maintain balanced braking force.

Symptoms & Diagnostics
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Pulsation or judder through the brake pedal during braking — indicates disc thickness variation (DTV) caused by uneven wear, thermal distortion, or corrosion buildup on the friction surface.
Steering wheel vibration or pull to one side under braking — lateral runout or uneven pad deposits on one disc causing asymmetric braking force between the left and right wheel.
High-pitched squealing or metallic grinding during braking — worn brake pads contacting the disc below the friction material, or heavy surface rust on a vehicle left standing for an extended period.
Deep grooves or scoring visible on the disc friction face — caused by worn pads allowing the backing plate to contact the disc directly; a grooved disc cannot be reused as pad contact area is insufficient.
Disc thickness below the minimum wear limit when measured with a micrometer at multiple points around the circumference — replace immediately regardless of surface appearance.
Increased stopping distances or brake fade under repeated heavy braking — a disc worn close to minimum thickness has reduced thermal capacity and overheats more rapidly, reducing pad friction coefficient.
Logistics & Customs
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International HS Code
8708.30
EAEU Customs Code (TN VED)
8708 30 910 0
Typical Net Weight
Country of Manufacture
China
Standard MOQ
1 pcs
Production Lead Time
50-55 days
Always verify the exact 8-digit or 10-digit subheading with your customs broker for the destination country, as tariff schedules and duty rates vary by jurisdiction.
Installation Tips
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  1. Remove the wheel and clean the hub face thoroughly with a wire brush and rust remover before fitting the new disc. Corrosion or debris on the hub face is the primary cause of disc lateral runout and pedal pulsation on new installations.
  2. Retract the brake caliper piston fully before removing the caliper — use a piston wind-back tool on rear calipers with integrated handbrake mechanisms. Support the caliper on a hook or wire — never allow it to hang on the flexible brake hose.
  3. Remove the old disc — on hubs with a retaining screw, remove it first. If the disc is seized to the hub, fit two M8 bolts into the disc puller holes (where present) or use a rubber mallet on the hat section — never strike the friction face.
  4. Degrease the new disc friction faces with brake cleaner to remove the anti-corrosion coating applied during storage. Failure to degrease will cause glazing of new brake pads and reduced braking performance during the bedding-in period.
  5. Measure lateral runout with a dial gauge after fitting the disc — maximum acceptable runout is typically 0.05–0.10 mm. If runout exceeds specification, index the disc to a different position on the hub or use shim correction plates.
  6. Install the new BRAKE DISC (TOYOTA/LEXUS 4351248081), fit new brake pads, torque the caliper bolts and wheel bolts to OEM specification, and perform a bedding-in procedure — 6–8 moderate stops from 60 km/h with cooling intervals between each — before subjecting the brakes to heavy loads.
Tools: wire brush, rust remover, brake cleaner, piston wind-back tool, dial gauge with magnetic base, torque wrench, rubber mallet.
Frequently Asked Questions
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Must brake discs be replaced in pairs, or can a single disc be replaced?
Always replace brake discs in axle pairs — both left and right on the same axle simultaneously. A new disc paired with a worn disc on the opposite wheel will produce uneven braking force, causing the vehicle to pull under braking and creating a safety hazard. ok.parts supplies discs individually and in axle-pair sets at wholesale MOQ from 12.81 USD per unit.
Is a bedding-in procedure required after fitting new brake discs?
Yes, always. New discs must be bedded in with new brake pads to transfer an even layer of pad material onto the disc friction surface. Perform 6–8 moderate stops from 60 km/h with 30-second cooling intervals between each stop. Avoid heavy or emergency braking for the first 200–300 km. Skipping bedding-in causes uneven pad deposits that lead to disc thickness variation and pedal pulsation.
How does the OEM-equivalent aftermarket unit compare to the genuine OEM part?
OEM-equivalent units in this catalogue replicate the current OEM design geometry and material specification. Quality is verified against OEM cross-reference data. When ordering in bulk, confirm with our team that the specification matches the latest OEM revision for your application.
Is white-label or custom packaging available for wholesale orders?
Yes. ok.parts works directly with the manufacturing facility and can accommodate neutral white-label packaging or fully branded packaging with your company logo, part numbers, and barcode. Minimum order quantities and lead times for custom packaging may differ from standard stock. Contact the team via the inquiry form to discuss your specific requirements.
Frequently Replaced Together
PartReason for Combined Replacement
Brake Pads
OEM ref. varies by axle position		New discs must always be paired with new brake pads. Worn pads have an uneven contact profile that prevents correct bedding-in on a new disc surface, causes uneven pad deposits, and accelerates disc wear. Never fit new discs against old pads.
Brake Caliper Guide Pin Kit
Application-specific		Seized or corroded caliper guide pins cause uneven pad contact across the disc face, producing accelerated one-sided disc wear and pulling under braking. Replace guide pins and boots when fitting new discs to ensure the caliper slides freely.
Brake Disc Retaining Screw
M6 or M8, application-specific		The disc retaining screw is a single-use item that is typically damaged during removal on high-mileage vehicles. Always fit a new screw when replacing the disc — a missing or loose retaining screw allows disc movement on the hub during low-speed manoeuvring.