Catalog

TOYOTA/LEXUS 178010T030 ELEMENT AIR CLEANER

Product Specifications

Product quality
OEM Equivalent Grade
starstarstar
Wholesale price USD $0.85
Wholesale price CNY ¥5.88
bolt MOQ (Minimal order)
200 pcs
local_shipping Production time
40 days
package_2 Shipping Weight: —
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TOYOTA/LEXUS 178010T030
TOYOTA/LEXUS 178010D060
TOYOTA/LEXUS 1780121050
MILES AFAD094
Overview & Operating Principle
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The ELEMENT AIR CLEANER is a pleated filtration element mounted in the airbox between the cold air intake and the mass airflow sensor (MAF) that removes airborne particulates — dust, pollen, carbon particles, and road debris — from the combustion air charge before it enters the throttle body and intake manifold. The filter medium is typically multi-layer cellulose or synthetic fibre, pleated to maximise surface area within the housing footprint. Filtration efficiency is rated in microns — OEM-specification elements typically capture particles down to 5–10 microns, preventing abrasive contamination of cylinder walls, piston rings, and MAF sensor wire.

This unit — TOYOTA/LEXUS 178010T030 — is manufactured to OEM-equivalent specifications: filter medium grade, pleat count and depth, frame dimensions, and sealing gasket profile are matched to the original part to ensure correct fitment in the airbox and no bypass leakage around the filter edges. Available wholesale from 0.85 USD, MOQ 200 pcs, production lead time 40 days.

Air filter restriction increases progressively as the filter loads with particulates. A partially blocked filter does not always trigger a fault code — the MAF sensor compensates for reduced airflow up to a point before fuel trim limits are exceeded. Replace at the OEM-specified interval or earlier in dusty operating environments. Never attempt to clean and reuse a paper element — compressed air damages the filter medium and removes the electrostatic charge that captures sub-micron particles.

Symptoms & Diagnostics
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Reduced engine power and sluggish throttle response — a heavily restricted filter limits the maximum airflow the engine can draw, reducing volumetric efficiency and peak power output.
Increased fuel consumption — the ECU richens the mixture to compensate for reduced airflow detected by the MAF sensor; long-term fuel trim (LTFT) values above +10% indicate intake restriction.
Rough idle or hesitation on light throttle — airflow turbulence caused by a partially blocked filter disrupts the laminar flow required for accurate MAF sensor readings, causing erratic fuelling.
Check Engine light with MAF-related codes P0100–P0104 — a severely restricted filter starves the MAF sensor of airflow, producing out-of-range voltage signals that the ECU flags as a sensor fault.
Black smoke from the exhaust on acceleration — an over-rich condition caused by insufficient air reaching the combustion chamber; unburned fuel exits through the exhaust as visible smoke.
Visibly grey, brown, or blocked filter medium on inspection — hold the element up to a light source; if light does not pass through the pleats clearly, the filter is due for replacement regardless of mileage.
Logistics & Customs
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International HS Code
8421.31
EAEU Customs Code (TN VED)
8421 31 200 0
Typical Net Weight
Country of Manufacture
China
Standard MOQ
200 pcs
Production Lead Time
40 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. Open the airbox housing by releasing the spring clips or unscrewing the retaining bolts — typically 4–6 fasteners around the perimeter. On some vehicles the MAF sensor connector or intake duct clamp must be loosened to allow the lid to open fully without stressing the wiring.
  2. Remove the old filter element and note its orientation — many elements are asymmetric and fit only one way. Photograph the airbox before removal if the correct orientation is not immediately obvious.
  3. Clean the interior of the airbox with a dry cloth before fitting the new element. Remove any leaf debris, insects, or accumulated dust from the housing — contamination left in the airbox will immediately load the new filter and may be ingested past it.
  4. Inspect the airbox sealing surfaces and intake ducting for cracks or splits. Any air bypass path downstream of the filter — between the airbox and the MAF sensor — allows unfiltered air to enter the engine and contaminate the MAF sensor hot wire, causing erratic readings and fault codes.
  5. Fit the new element with the sealing gasket correctly seated in the airbox groove around the full perimeter. An unseated gasket creates a bypass channel that allows unfiltered air past the element edge — the most common installation error on panel-type filters.
  6. Install the new ELEMENT AIR CLEANER (TOYOTA/LEXUS 178010T030), close and fasten the airbox lid, reconnect any ducting or sensor connectors disturbed during access, and start the engine — confirm smooth idle and no intake noise (whistling indicates a leak in the ducting or an unseated filter gasket).
Tools: screwdriver or socket set for airbox clips, dry cloth, flashlight for airbox interior inspection.
Frequently Asked Questions
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How often should the air filter be replaced, and does the interval change in dusty conditions?
The standard OEM replacement interval is typically 15,000–30,000 km or 12–24 months, depending on the vehicle manufacturer. In dusty operating environments — unpaved roads, agricultural areas, construction sites — this interval should be halved. Inspect the filter visually at every oil change and replace on condition rather than strictly on mileage. ok.parts supplies air filter elements at wholesale MOQ from 0.85 USD per unit, making proactive replacement cost-effective at fleet scale.
Can the air filter be cleaned with compressed air and reused instead of replaced?
No. Compressed air damages the cellulose or synthetic filter medium by disrupting the fibre structure and removes the electrostatic charge that captures sub-micron particles. A blown-out filter may appear clean but has significantly reduced filtration efficiency and will pass fine abrasive particles into the engine. Paper and synthetic OEM-type elements must always be replaced, not cleaned.
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
Mass Airflow Sensor (MAF)
OEM ref. varies by engine		A long-overdue air filter replacement is the primary cause of MAF sensor contamination. Fine particulates that bypass a saturated filter coat the hot-wire sensing element, causing drift in airflow readings and fuelling faults. Inspect and clean or replace the MAF sensor when fitting a filter that was significantly overdue.
Cabin Air Filter (Pollen Filter)
OEM ref. varies by vehicle		Cabin and engine air filters share the same replacement interval and are frequently serviced together during a scheduled maintenance visit. Combining both replacements in one job reduces workshop time and ensures complete air filtration maintenance across the vehicle.
Spark Plugs
OEM ref. varies by engine		A heavily restricted air filter causes a rich-running condition that accelerates spark plug fouling through carbon and oil deposits on the electrode. When replacing a significantly overdue air filter, inspect spark plugs and replace if deposits are present to restore correct combustion conditions.