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

A-Premium Mass Air Flow Sensor 25318411 is a direct-fit 5-pin replacement MAF that measures incoming air for compatible Chevrolet, GMC and other GM-family engines.

When the engine computer needs an accurate reading of air entering the intake, this replacement mass air flow (MAF) sensor supplies that signal. Built from reinforced PBT with aluminum alloy components, the unit matches OE mounting and electrical interface so it installs like the factory part. It’s designed to restore proper air-measurement performance for a long list of GM vehicles from the late 1990s through the 2000s.

Which vehicles will this A-Premium MAF sensor fit?

This sensor is made to fit many Chevrolet and GMC trucks, SUVs and select GM passenger cars. Fitment covers Silverado and Sierra 1500/2500/3500 models, Tahoe, Suburban, Avalanche, Yukon, Yukon XL, Corvette, and additional GM family vehicles as noted in the compatibility list.

• Silverado/Sierra 1500 (1999–2006) V6 and V8 engines, and 2500/3500 variations where specified
• Tahoe, Suburban, Avalanche, Yukon and XL models from 2000–2006
• Selected Cadillac, Buick, Pontiac, Hummer, Saab, Isuzu and other GM-derived models

How accurate and durable is the sensor?

A-Premium engineered this MAF sensor for stable readings and long-term use. The measuring element covers 0–9.25 m³/min with ±3% accuracy, and the housing combines PBT with 30% glass fill plus aluminum alloy for structural strength.

• Measurement range: 0–9.25 m³/min for a wide airflow span
• Accuracy: approximately ±3%, suitable for engine management feedback
• Materials: PBT+GF30 body with aluminum alloy elements for heat resistance
• Electrical: 5-pin terminal configuration and two-bolt bolt-on mounting

What installation and compatibility specifics should I check?

Installation follows the OE footprint: two bolt holes and a 5-pin electrical connector. Confirm the part reference numbers or cross-references and ensure your vehicle’s engine code and year match the listed fitment before purchasing.

• Mounting: bolt-on with two bolt holes matching factory locations
• Terminals: 5-pin pin-style connector — verify connector shape on your harness
• Reference numbers: includes 25318411 plus multiple OEM cross-references for confirmation
• Power: compatible with standard 12V automotive electrical systems

What guarantee and quality assurances come with this part?

A-Premium includes a one-year unlimited-mileage warranty on this MAF sensor, backing manufacturing and fitment quality. The warranty aims to give confidence that the replacement will perform as intended or be covered if defects arise during normal use.

• One-year unlimited-mileage warranty from A-Premium
• Factory-style materials and mounting for direct-fit replacement
• Shipped complete with housing and mounting for a ready installation

Who is this for: This product is intended for DIY mechanics and professional technicians restoring factory air-measurement capability on late-1990s to mid-2000s GM vehicles. Choose this A-Premium MAF if your vehicle uses a 5-pin MAF, you need OE-style mounting and electrical compatibility, and you want a backed replacement for troubleshooting airflow-related drivability issues or for preventive maintenance.