A-Premium Mass Air Flow Sensor (MAF) 5-Pin — Direct-Fit OE Replacement, Accurate Airflow

The A-Premium Mass Air Flow Sensor 25318411 is a direct-fit 5-pin replacement that restores accurate air measurement for compatible Chevrolet, GMC and select GM-family engines.

When an aging or failed MAF sensor sends incorrect airflow data to the engine computer, drivers can experience poor idle, hesitation, or reduced fuel efficiency. This A-Premium unit is engineered to match OE mounting, electrical connections and measurement range so you can replace a faulty sensor quickly and return your vehicle to reliable operation without custom wiring or adapters.

Which vehicles will this A-Premium MAF sensor fit?

This sensor is designed for a broad range of GM vehicles from late 1990s through the 2000s. Fitment covers many Chevrolet and GMC trucks and SUVs as well as certain Buicks, Cadillacs, Pontiacs, Hummers and more — check engine displacement and model years carefully against your vehicle.

• Direct applications: Chevrolet Silverado, Tahoe, Suburban, Avalanche, Corvette, SSR and Trailblazer in listed years and engines.
• GMC covered models: Sierra, Yukon, Yukon XL, Envoy across specified engine sizes and years.
• Also suits select Buick, Cadillac, Pontiac, Oldsmobile, Hummer, Isuzu, Saab and commercial Isuzu NPR models.
• Reference part numbers provided for cross-checking compatibility with your OEM part.

How does this MAF sensor match original equipment?

The A-Premium unit mirrors OE design choices where it matters: the five-pin electrical interface, two-bolt mounting and bolt-on installation provide a plug-and-play replacement. Materials and measurement specs are set to replicate factory performance so the engine control unit receives accurate airflow measurements.

• 5-pin terminal count and pin-type connector for direct electrical fit.
• Two mounting bolt holes and bolt-on installation—no brackets needed.
• PBT+GF30 housing and aluminum alloy components for thermal stability and durability.
• Measurement range 0–9.25 m³/min with ±3% accuracy for consistent sensor output.

What are the technical specs and installation considerations?

This sensor runs on the vehicle’s 12V supply and is designed for straightforward replacement. Before installation, verify the engine VIN/size and that your defect relates to the MAF sensor; cleaning is sometimes sufficient, but a faulty sensor should be replaced to avoid drivability issues.

• Maximum supply voltage: 12 volts; measurement accuracy ±3%.
• Material: PBT+GF30 plastic body with aluminum alloy internals for durability.
• Includes housing; color is black and silver for easy visual match to engine bay components.
• Installation: unplug battery, disconnect old sensor, unbolt two fasteners, replace and reconnect—no programing required for most GM ECUs.

Why choose A-Premium over other aftermarket options?

A-Premium emphasizes fit, finish and a warranty that covers workmanship for typical driving use. This product includes a one-year unlimited-mileage guarantee and multiple reference part numbers so you can confirm compatibility against your OEM part.

• One-year unlimited-mileage warranty for added confidence after installation.
• Supplied housing and OE-style connector minimize modification needs.
• Comprehensive reference numbers to cross-check with factory parts lists.
• Manufactured to match measurement range and mounting layout of original sensor.

Who is this for: This A-Premium MAF sensor is intended for DIY mechanics, professional shops and fleet technicians who need a reliable, direct-fit replacement for GM vehicles listed in the compatibility notes. If your Chevy, GMC or other compatible GM-family vehicle shows MAF-related symptoms and your part number matches one of the references, this unit provides a cost-effective way to restore proper airflow measurement and engine response.