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Hitachi MAF0123 Mass Air Flow Sensor OE Replacement
Hitachi MAF0123 Mass Air Flow Sensor OE Replacement
Hitachi MAF0123 Mass Air Flow Sensor OE Replacement
Hitachi

Hitachi MAF0123 Mass Air Flow Sensor OE Replacement

★★★★★3.9 (102 reviews)

Drop-in OEM replacement MAF sensor with built-in contaminant bypass port restores factory air-fuel calibration on compatible Nissan applications.

$81.58*
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*Price sourced from Amazon.com. Last updated:Jul 14, 2026.Price and availability are subject to change.

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Overview

The Hitachi MAF0123 is a new original equipment mass air flow sensor designed as a direct replacement for applications using OEM part number 22680-3VA0A. A failed or degraded MAF sensor causes the ECU to miscalculate injector pulse width, resulting in rough idle, poor fuel economy, hesitation on acceleration, and P0100–P0104 diagnostic codes. This sensor corrects all of that by restoring accurate air mass measurement — the foundation of proper air-fuel ratio control. It operates on a 12V DC supply with digital output and is rated for temperatures up to 120°C, consistent with under-hood conditions on target Nissan platforms.

Installation is a straight swap: disconnect the harness, remove two Torx screws, pull the old sensor, seat this one in its place. The precision-assembled sensing elements are built to OEM tolerances, so no recalibration is needed — just clear stored codes and run a drive cycle. The standout engineering detail here is the built-in contaminant bypass port, which diverts dirt and oil vapor away from the hot-wire element. On high-mileage engines where oil blow-by is a factor, this is the difference between a sensor that lasts 30K miles and one that lasts 100K. If you're chasing drivability issues and the MAF is the culprit, this is the correct part to reach for.

Key Features

ENHANCED PERFORMANCE: Astemo MAF0123 Mass Air Flow Sensor is engineered to deliver dependable performance, durability, and OE-quality reliability

LONG-LASTING DURABILITY: Part characteristics performance and durability standards for this application assembled sensing elements for accurate air flow measurements bypass port provides reliable operation and increases longevity Astemo’s Air Flow Sensors (MAFs) measure the amount and characteristics of air entering the engine

PRECISION ENGINEERED: Astemo uses precision elements and high-quality components for enhanced durability and accurate air flow measurements

AIR FLOW EFFICIENCY: Astemo MAFs are 100% air flow tested for ideal performance and are calibrated for each application ensuring your vehicle meets the strict emission standards set by the manufacturer

HEAVY-DUTY DESIGN: Details such as a contaminant bypass port (when applicable) and protected circuitry providing a durable and reliable product approved by OE manufacturers makes Astemo’s air flow sensors the premium choice

Specifications

Manufacturer Part Number
MAF0123
OEM Part Number
22680-3VA0A
Part Type
New Original Equipment
Output Type
Digital
Mounting Type
Flange Mount
Maximum Supply Voltage
12V DC
Upper Temperature Rating
120°C
Dimensions (L x W x H)
1.65 x 1.8 x 3.66 inches
Weight
0.18 lbs (2.88 oz)
Country of Origin
China

Pros & Cons

👍 Pros

  • New OEM-equivalent unit — not remanufactured, so no inherited wear or calibration drift from a previous service life.
  • Precision sensing elements matched to factory spec deliver accurate air mass readings and restore correct fuel trims.
  • Built-in contaminant bypass port addresses a root cause of premature MAF failure, not just the symptom.
  • Flange-mount design and OEM connector plug straight in — no adapter harnesses or modification required.
  • Rated to 120°C, consistent with the thermal demands of the under-hood environment on target applications.

👎 Cons

  • Fitment is vehicle-specific via OEM part number 22680-3VA0A — if your application isn't a match, this sensor won't calibrate correctly.
  • No installation hardware or instructions included in the box; straightforward job but first-timers should pull a factory service manual.
  • At 0.18 lbs and compact dimensions, the unit is correct for its application but there's no margin for use on non-specified engines.
  • Country of origin is China, which may matter to buyers preferring Japanese-manufactured Hitachi components.

Frequently Asked Questions

This sensor cross-references OEM part number 22680-3VA0A, which fits specific Nissan models. Verify fitment against your year, make, model, and engine code before ordering — do not assume universal compatibility.
This is a new original equipment part, not remanufactured. It's built to the same tolerances and specs as the factory sensor.
No reprogramming is required for a direct OEM swap. Clear any stored MAF-related codes post-install and allow the ECU to relearn fuel trims over a short drive cycle.
The bypass port routes airborne debris and contaminants away from the sensing element, reducing fouling and extending sensor life — a common failure point on high-mileage units.
Typically a T20 Torx screwdriver and a small flathead to release the wiring harness clip. No specialty tools required. Job takes under 15 minutes on most applications.

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