A-Premium Mass Air Flow Sensor for Chevy GMC 25318411 (5-Pin) — Direct Fit, ±3% Accuracy

The A-Premium Mass Air Flow Sensor 25318411 is a 5-pin bolt-on air metering sensor designed to restore accurate airflow readings for compatible Chevrolet, GMC and related V8/V6 engines.

This precision replacement MAF sensor measures intake air volume and communicates that data to the engine control module so fuel delivery and ignition timing remain balanced. Crafted from PBT+GF30 and aluminum alloy, the unit includes the housing and two-bolt mounting for a direct fit on many Silverado, Sierra, Tahoe, Suburban, Avalanche, Yukon, Corvette and other GM-based models listed below.

Which vehicles will this A-Premium MAF sensor fit?

This sensor fits a broad range of GM vehicles across model years mainly from late 1990s through the 2000s. Confirm compatibility with your engine displacement and year before ordering — the listing covers 4.3L, 4.8L, 5.3L, 5.7L, 6.0L, 6.2L, 8.1L and select diesel/industrial applications.

• Chevrolet: Silverado 1500/2500/3500 (various years 1999–2007), Tahoe, Suburban, Avalanche, Corvette, SSR, Trailblazer.
• GMC: Sierra 1500/2500/3500, Yukon, Yukon XL, Envoy across 1999–2009 ranges.
• Also fits: Cadillac, Buick, Pontiac, Hummer H2, Isuzu Ascender, Saab 9-7x, Oldsmobile, Buick Rainier and select industrial NPR applications.

How accurate and durable is this replacement part?

The sensor provides a measuring range up to 9.25 m3/min with ±3% accuracy, suitable for stock and many lightly modified engines. It uses durable polymer and aluminum alloy components and mounts with two bolts for a secure, repeatable installation.

• Measuring range: 0–9.25 m³/min for typical intake airflow.
• Accuracy: ±3% for reliable engine control input.
• Construction: PBT+GF30 housing with aluminum alloy internals for heat and vibration resistance.
• Electrical: 5-pin terminal connector, 12V maximum supply voltage.

What are the installation and reference details I should know?

This is a bolt-on replacement with two mounting holes and a five-pin electrical terminal that connects to the factory harness. Use the part reference numbers to cross-check original equipment or aftermarket catalogs before installing.

• Mounting: 2 bolt holes, bolt-on style for direct replacement.
• Terminal: 5-pin style matching many GM harnesses (verify connector shape).
• Reference numbers: 2134160, 15904068, 25318411 and several OEM/aftermarket cross-refs.
• Color and packaging: black and silver finish; housing included in the box.

Who this product is for: Automotive owners and technicians who need a dependable, OE-style mass air flow sensor for GM platforms from the late '90s through the 2000s. It’s aimed at people restoring drivability on Silverado, Sierra, Yukon, Tahoe, Corvette and similar vehicles, or fleet operators who require a reliable aftermarket replacement with clear fitment and durable construction.

Buy with confidence: A-Premium backs this part with a one-year unlimited-mileage warranty and customer support to help ensure proper fitment and performance for compatible vehicles.