A-Premium Mass Air Flow Sensor MAF 5-Pin Direct-Fit for Chevy GMC Pontiac — ±3% Accuracy, Bolt-On Replacement

A-Premium's 5-pin Mass Air Flow (MAF) sensor measures incoming air volume and density so the engine control unit can set fuel delivery accurately.

This direct-fit replacement MAF sensor is engineered to match original equipment specifications for multiple Chevrolet, GMC, Pontiac, Buick, Cadillac, Saab, Saturn, Hummer, Isuzu and Hyundai models. Built from PBT+GF30 and aluminum alloy with a bolt-on mount and 5-pin connector, it provides the electrical and air-measurement data your vehicle’s ECU needs to maintain efficient combustion across varying temperatures and loads.

How will this sensor affect engine performance?

By returning precise airflow readings within ±3% accuracy, the A-Premium MAF helps the ECU calculate the right fuel injection quantities to support steady idling, predictable throttle response and emission control. Replacing a failing MAF can clear intermittent faults and reduce drivability issues caused by incorrect air intake data.

• Measuring range: 0–9.25 m³/min to cover a wide RPM/load range
• Accuracy: ±3% for reliable ECU input
• 5-pin electrical terminal for direct compatibility with listed models
• Bolt-on mounting with two bolt holes for secure installation

Which vehicles will accept this A-Premium 5-pin MAF sensor?

This part fits a long list of domestic and import vehicles where the original part numbers include 12576410, 15865791, AFH70M-43A, MAF0034 or MAS0141. It’s designed to be a direct replacement for many Chevrolet, GMC and Pontiac models as well as select Buick, Cadillac, Saab, Saturn, Hummer, Isuzu and Hyundai applications.

• Chevrolet models: Malibu, Camaro, Cobalt, Trailblazer, HHR, Equinox, Colorado, Impala, Corvette, Spark
• GMC & Cadillac: Canyon, Envoy, Terrain, CTS, SRX, XLR, XTS
• Other makes: Pontiac G5/G6/Solstice, Buick LaCrosse/Regal, Saturn Sky/Vue, Saab 9-4X/9-7X, Hummer H3/H3T, Isuzu i-290/i-370, Hyundai Equus
• Reference numbers supported for cross-compatibility checks listed above

What do I need to know before installing this MAF sensor?

Installation is straightforward for anyone comfortable with basic engine-bay work: disconnect the battery, unplug the electrical connector, unbolt the old sensor, swap in the new unit and torque the mounting bolts to spec. Because the housing isn't included, ensure your vehicle’s existing intake tubing and seals are in good condition to prevent leaks that would affect readings.

• Terminal quantity: 5 pins; terminal type: pin
• Mounting: 2 bolt holes, bolt-on replacement style
• Material: PBT+GF30 plastic and aluminum alloy for durability
• Max supply voltage: 12 V — matches typical automotive electrical systems

How does the A-Premium unit help with diagnostic trouble codes?

Faulty or intermittent MAF signals often trigger ECU codes related to fuel mixture, idle control and emissions. Installing a correctly functioning sensor restores accurate airflow information, which can clear some intermittent fault codes and make subsequent diagnosis simpler if other issues remain.

• Provides stable airflow data to the ECU to reduce false triggers
• Helps distinguish between sensor faults and other intake system problems
• Compatible with vehicles that expect a 5-pin MAF signal format

Who is this for: Drivers and independent technicians seeking a direct-replacement 5-pin MAF sensor for late-2000s and early-2010s domestic and select import vehicles. Choose this A-Premium unit if you need OE-style fitment, robust materials, and an affordable aftermarket option for resolving airflow-related drivability and emissions issues. Always verify fitment against your vehicle’s year, engine type and OEM reference numbers before purchase.