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Black plastic and silver metal mass air flow sensor, rectangular with connector and mounting holes

Unique-Bargains

Unique-Bargains Mass Air Flow Meter Sensor 3W4A-12B579-AB

SKU CH-9XC8-FVQTH

Mass air flow sensor with six pins, 12 V operation and 4.5 mm mounting hole fits as a direct replacement

  • Direct replacement fit confirmed by 4.5mm installation hole
  • Accurate airflow measurement with 6-pin DC 12V design
  • Lightweight at 4.5x3x9.5cm for easy handling
  • Durable plastic and metal construction ensures long service life
  • Non-OEM accessory matching original factory specifications

Direct-Replacement MAF Sensor

The Unique-Bargains 3W4A-12B579-AB mass air flow meter sensor is a new, non-OEM replacement part built from plastic and metal. It operates on a DC 12 V supply and uses a six-pin connector with an installation hole diameter of 4.5 mm. The unit measures 1.77 x 1.18 x 3.74 inches and weighs very little.

Fits Factory-Spec Vehicles Only

This sensor suits owners who need a direct swap that matches original factory specifications for a single vehicle. It will not suit buyers who require an OEM-branded component, a different pin count, or a sensor calibrated for a modified intake system.

No Extras Included

The package contains only the MAF sensor itself; no wiring harness, gasket, mounting hardware or diagnostic software is supplied. Installers must reuse existing seals and connectors or source them separately.

How it compares

Measured against everything we stock in Shop Tools, Supplies & Utility Carts, at today’s prices. Recalculated every night.

Price $16.99
Cheaper than about 65% of the 515 comparable items (median $31.99).

Specifications

Product
Brand nameUnique Bargains

Questions about this item

What vehicle voltage system is required for the 3W4A-12B579-AB sensor?

The sensor operates on a DC 12V system, matching standard automotive electrical architectures.

Does the 4.5 mm installation hole fit the original mounting points on my car?

Yes, the 4.5 mm hole diameter follows original factory specifications for a direct replacement fit.

How can I confirm the 6-pin connector is seated correctly after installation?

The connector clicks firmly into place and the sensor housing sits flush with the intake tube when fully inserted.

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