Catalog

HYUNDAI/KIA 5830239A40 BRAKE PAD

HYUNDAI/KIA 5830239A40 BRAKE PAD

Product Specifications

Product quality
OEM Equivalent Grade
starstarstar
Wholesale price USD $2.29
Wholesale price CNY ¥15.48
bolt MOQ (Minimal order)
200 pcs
local_shipping Production time
55-60 days
package_2 Shipping Weight: —
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HYUNDAI/KIA 5830239A40
HYUNDAI/KIA 4841321B10
HYUNDAI/KIA 5830226A30
HYUNDAI/KIA GDB3284
LYNXAUTO BD3605
MILES E110011
MILES E110178
MILES E410011
MILES E410178
MILES E510011
SSANGYONG 4813008050
SSANGYONG 4813008150
SSANGYONG 4813008151
SSANGYONG 4813008152
SSANGYONG 363700201533
SSANGYONG 4106032R90
SSANGYONG 5810138A40
Overview & Operating Principle
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The BRAKE PAD are friction elements mounted in the brake caliper that clamp against the rotating brake disc under hydraulic pressure to convert the vehicle's kinetic energy into heat through controlled friction, decelerating the wheel. Each pad consists of a steel backing plate to which a friction material compound is bonded under high pressure and temperature. The friction compound formulation determines the pad's performance envelope: NAO (non-asbestos organic) compounds offer quiet operation and low disc wear at moderate temperatures; semi-metallic compounds provide higher thermal capacity and fade resistance for heavier vehicles and demanding driving conditions; and low-metallic compounds balance stopping performance with dust and noise characteristics for typical passenger car use. Most OEM-specification pads include a wear indicator — either a steel tab that contacts the disc and produces a high-pitched squeal at minimum thickness, or a wired sensor that triggers a warning light on the instrument cluster.

This unit — HYUNDAI/KIA 5830239A40 — is manufactured to OEM-equivalent specifications: backing plate dimensions and steel grade, friction compound formulation and ECE R90 certification, pad thickness at new, shim configuration, and wear indicator type are matched to the original part. Supplied as a direct replacement for standard fitment. Available wholesale from 2.29 USD, MOQ 200 pcs, production lead time 55-60 days.

Brake pads wear at a rate determined by driving style, vehicle weight, and brake balance — front pads on front-wheel-drive vehicles typically require replacement at 30,000–60,000 km while rear pads may last twice as long on the same vehicle. Minimum friction material thickness is typically 2–3 mm; replacement at or before this threshold prevents metal-to-metal contact between the backing plate and disc surface that will score the disc beyond the minimum thickness specification and require combined pad and disc replacement. Never defer pad replacement once the wear indicator activates.

Symptoms & Diagnostics
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High-pitched squealing during braking — the steel wear indicator tab is contacting the disc surface, signalling that the friction material has reached minimum thickness; the vehicle requires immediate pad replacement before metal-to-metal contact begins scoring the disc.
Brake pad wear warning light illuminated on the instrument cluster — the electronic wear sensor wire has been severed by contact with the disc at minimum pad thickness; inspect pad thickness on all four corners as the sensor is typically fitted to only one pad per axle and the remaining pads may be at the same wear stage.
Grinding or metal-on-metal scraping noise during braking — the friction material has been fully consumed and the steel backing plate is contacting the disc directly; the disc is being scored and will require replacement in addition to the pads; assess disc thickness and surface condition before fitting new pads.
Vehicle pulling to one side under braking — uneven pad wear between left and right on the same axle caused by a seized caliper piston or slide pin on the pulling side; replacing pads without addressing the seized caliper will result in the new pads wearing unevenly within a short period.
Brake pedal pulsation or steering wheel vibration under braking — uneven pad material transfer onto the disc surface creating thickness variation; the disc surface should be inspected for hot spots and runout measured with a dial gauge before fitting new pads; a disc with excessive runout or hard spots will contaminate new pads rapidly.
Reduced braking performance, increased stopping distance, or brake fade under repeated heavy braking — the friction material has glazed from overheating or has reached the end of its thermal capacity; glazed pads produce a smooth, polished friction surface that significantly reduces the coefficient of friction.
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
200 pcs
Production Lead Time
55-60 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. Measure disc thickness and check for scoring before fitting new pads — use a micrometer to confirm the disc is above minimum thickness at multiple points around the circumference. A scored disc with grooves deeper than 0.5–1.0 mm will destroy new pads rapidly and must be replaced or machined before the new pads are installed.
  2. Clean the caliper slide pins, carrier bracket abutment surfaces, and piston face with a wire brush and brake cleaner before fitting new hardware. Apply a thin film of ceramic or copper-free brake grease to the abutment surfaces and slide pin bores only — never apply any lubricant to the disc face, pad friction surface, or pad backing plate friction contact area.
  3. Retract the caliper piston fully using a piston wind-back tool before fitting the new, thicker pads. On rear calipers with integrated electric parking brake, the piston must be wound back clockwise using a dedicated wind-back tool — never attempt to compress a rear EPB piston with a C-clamp as this will damage the internal thread mechanism. Open the bleed nipple slightly when retracting the piston to avoid forcing old brake fluid back through the ABS modulator.
  4. Fit all new hardware supplied with the pad set — abutment clips, anti-rattle springs, and shims are application-specific and are included because the OEM requires them for correct pad retention and noise suppression. Reusing old hardware with new pads is a common cause of brake squeal and pad rattle complaints after service.
  5. Verify the electronic wear sensor connector is correctly routed and connected where fitted — the sensor wire must be routed clear of the disc and any rotating components, with sufficient slack to accommodate caliper movement during braking without pulling the connector free from the pad.
  6. Install the new BRAKE PAD (HYUNDAI/KIA 5830239A40) on both sides of the axle, torque all caliper bolts to OEM specification, pump the brake pedal firmly until the pedal feels solid before moving the vehicle, bed in the new pads by performing 8–10 moderate stops from 60 km/h to 10 km/h with 30-second cooling intervals between each stop, and clear any stored brake warning light codes.
Tools: micrometer for disc thickness measurement, dial gauge for disc runout, piston wind-back tool set (including EPB wind-back for rear calipers), torque wrench, brake cleaner, ceramic brake grease, bleed nipple wrench.
Frequently Asked Questions
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Must brake pads always be replaced as a complete axle set, or can a single pad be replaced?
Brake pads must always be replaced as a complete axle set — both left and right on the same axle simultaneously. Fitting new pads on one side of an axle while leaving worn pads on the other creates a severe brake force imbalance that causes the vehicle to pull strongly under braking, potentially leading to loss of control. The pads on both sides of an axle wear at the same rate under normal conditions; if one side has reached minimum thickness, the other is at the same stage. ok.parts supplies brake pads in axle sets at wholesale MOQ from 2.29 USD per set.
Why is a bedding-in procedure necessary after fitting new brake pads, and what does it involve?
New brake pads require a bedding-in procedure to transfer a uniform layer of friction material onto the disc surface and to cure any residual manufacturing compounds in the friction material. Without bedding in, full braking performance is not available and the pads may produce noise or uneven wear. The standard procedure is 8–10 moderate stops from 60 km/h to 10 km/h, allowing 30 seconds of cooling between each stop to prevent the pads from overheating before the transfer film is established. Avoid heavy or repeated emergency stops for the first 200–300 km after fitting new pads.
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 Disc
OEM ref. varies by axle position		New brake pads fitted to a scored, grooved, or worn disc below minimum thickness will be destroyed rapidly by the uneven surface, and full braking performance will not be restored. Measure disc thickness before every pad replacement — if the disc is within 1–2 mm of minimum thickness, replace it simultaneously with the pads to avoid a repeat axle disassembly within a short period.
Caliper Slide Pin and Boot Kit
Application-specific hardware kit		Seized or corroded caliper slide pins prevent the caliper from floating correctly, causing the outer pad to carry a disproportionate share of the braking load and wearing faster than the inner pad. A pad replacement performed without servicing the slide pins will result in premature uneven pad wear on the new set. Clean, lubricate, or replace slide pins and their rubber boots at every pad change.
Brake Fluid
DOT 4 or DOT 5.1 per OEM specification		Brake fluid absorbs moisture over time, lowering its boiling point and increasing the risk of vapour lock under heavy braking. The piston retraction required to fit new thicker pads forces old, moisture-saturated fluid back toward the master cylinder. Brake fluid should be replaced every two years regardless of pad condition; combining fluid replacement with a pad service eliminates a separate brake bleed operation and ensures the new pads perform within a fresh, high-boiling-point fluid circuit.