A-Premium Mass Air Flow Sensor for Chevy GMC, 5‑Pin MAF Assembly — OE Fit, ±3% Accuracy

The A-Premium Mass Air Flow Sensor Assembly (5-pin) is a direct-fit aftermarket replacement that measures intake airflow so your Chevy, GMC or related GM vehicle’s engine control unit can set fuel delivery accurately.

This five-terminal MAF sensor from A-Premium is engineered to match OE mounting and electrical interfaces across many GM models. Built with a durable PBT+GF30 housing and aluminum alloy elements, it bolts in with two fasteners and connects to a 12-volt supply. The sensor reports airflow within 0–9.25 m3/min at ±3% accuracy, giving your vehicle the data the ECU needs to optimize mixture and performance without custom tuning.

Which vehicles will this A-Premium MAF sensor fit?

The unit covers a broad selection of Buick, Chevrolet, GMC, Cadillac, Pontiac and Saturn models from the mid-2000s to early 2010s. Fitment includes multiple engines and model years; check the reference numbers and your factory part to confirm compatibility before ordering.

• Buick: Allure, Enclave, LaCrosse, Lucerne, Rendezvous, Terraza (specified years/engines)
• GMC/Chevrolet: Acadia, Captiva Sport, Equinox, Impala, Malibu, Monte Carlo, Uplander
• Pontiac/Cadillac/Saturn: G6, G8, Grand Prix, Montana, Torrent, DTS, Aura, Outlook, Relay, Vue
• Cross-check OE numbers: 74-10113, 15911983, 2451133, MF21136 and related references

How accurate and reliable is this sensor for engine management?

The A-Premium sensor delivers airflow readings across a tightly specified range and uses robust materials for stable behavior over time. With a measuring range of 0–9.25 m3/min and ±3% measurement accuracy, it supplies the ECU with consistent data to help maintain correct air–fuel ratios under normal operating conditions.

• Accuracy: ±3% across the specified range
• Range: 0–9.25 m3/min suitable for listed engines
• Electrics: 5-pin terminal interface, 12 V maximum supply
• Mounting: bolt-on design with two mounting holes for OE-like fit

What are the physical and electrical specifications to check before installation?

This assembly uses five pins and pins-type terminals, so ensure your vehicle harness matches this configuration. The mass airflow unit ships with housing included and is built from PBT+GF30 thermoplastic plus aluminum alloy for structural and thermal stability.

• Terminal quantity/type: 5 pins (pin-style terminals)
• Mounting: 2-bolt flange, bolt-on replacement
• Materials: PBT+GF30 housing, aluminum alloy elements
• Operating voltage: Designed for 12 V automotive systems

Will replacing the MAF sensor resolve engine performance lights or drivability issues?

A precise airflow sensor often helps clear intermittent faults related to incorrect intake readings, but results depend on your vehicle’s overall condition. If the original MAF is contaminated, damaged, or reading out of range, a correct replacement can restore normal airflow measurement; other engine or vacuum issues may still need diagnosis.

• Clears MAF-related fault codes when airflow readings return to normal
• Helps restore accurate fuel trims if mass airflow was the root cause
• Does not replace diagnosis of vacuum leaks, injectors, or sensors

Who is this for: This A-Premium 5-pin Mass Air Flow Sensor is intended for owners, technicians and DIY mechanics replacing a failed or suspect MAF on compatible Buick, Chevrolet, GMC, Pontiac, Cadillac and Saturn vehicles. Choose this part if you need an OE-style bolt-on unit with precise airflow range, a common GM reference fit list, and a one-year unlimited-mileage warranty for peace of mind. Always verify your car’s year, engine and OEM part numbers against the listed reference numbers before purchase to ensure fitment.