AA Ignition Mass Air Flow Sensor for GM Vehicles | Replaces AF10043, 25168491, 25318411 | 5.3L & 6.0L
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Description
xProduct overview
AA Ignition's Mass Air Flow Sensor is a direct replacement for worn or dirty MAF sensors that can affect engine management. The MAF sensor measures the mass of air entering the intake and helps the engine control unit calculate the proper fuel amount for efficient combustion. Over time, factory sensors can accumulate dirt and oil, potentially causing rough idle, hesitation, or a Check Engine Light. This AA Ignition replacement is designed to fit like the factory part and deliver consistent signals to the PCM.
Direct fit and easy installation: This unit is designed as a direct replacement for select GM vehicles and should mount where the original part sits. It’s not an OEM part, but it’s engineered to look, fit, and perform like the factory sensor.
What you get
- AA Ignition Mass Air Flow Sensor with lifetime warranty
- Comprehensive replacement for multiple OEM part numbers (AF10043, 25168491, 25318411, and more)
- Direct-fit design that aligns with the air intake and mounting points
Compatibility highlights
- Fits a wide range of GM vehicles from 1999–2009, including Silverado, Suburban, Tahoe, Yukon, Escalade, Envoy, Sierra, and more
- Suitable for models listed in the compatibility guide; verify your vehicle year and engine
- Engineered to withstand typical road conditions and engine heat while maintaining signal integrity
Notes: The MAF sensor is commonly located beside the air intake box inside the engine bay. If you notice rough running, hesitation after startup, or reduced fuel economy, replacing the sensor could help restore sensitive airflow readings to the PCM.
Lifetime warranty: This mass air flow sensor is backed by a lifetime warranty. If the part ever fails, contact AA Ignition for a replacement. Replacing it yourself can save time and money compared to a dealer service visit. See our website for full details.
Design and reliability
The sensor features robust materials and a sealed housing to guard against dust and debris. While not OEM, the part is engineered to replicate OE function and fit on listed GM models, providing a dependable replacement option.
Installation tips
Disconnect the battery before installation and follow standard safety procedures. Ensure the connection is secure and the sensor sits correctly in the intake path to avoid signal noise.
FAQ
Q: Which vehicles is this AA Ignition MAF sensor compatible with?
A: Fits many GM models from 1999–2009, including Silverado, Tahoe, Suburban, Yukon, Escalade, Envoy, Sierra, and more per the compatibility guide.
Q: What can I expect after replacing the MAF sensor?
A: Results vary, but you may notice steadier idle, crisper throttle response, and more consistent air-fuel readings as the ECU recalibrates.
Shipping & Return
xReturns Policy
You may return most new, unopened items within 30 days of delivery for a full refund. We'll also pay the return shipping costs if the return is a result of our error (you received an incorrect or defective item, etc.).
You should expect to receive your refund within four weeks of giving your package to the return shipper, however, in many cases you will receive a refund more quickly. This time period includes the transit time for us to receive your return from the shipper (5 to 10 business days), the time it takes us to process your return once we receive it (3 to 5 business days), and the time it takes your bank to process our refund request (5 to 10 business days).
If you need to return an item, simply login to your account, view the order using the "Complete Orders" link under the My Account menu and click the Return Item(s) button. We'll notify you via e-mail of your refund once we've received and processed the returned item.
Shipping
We can ship to virtually any address in the world. Note that there are restrictions on some products, and some products cannot be shipped to international destinations.
When you place an order, we will estimate shipping and delivery dates for you based on the availability of your items and the shipping options you choose. Depending on the shipping provider you choose, shipping date estimates may appear on the shipping quotes page.
Please also note that the shipping rates for many items we sell are weight-based. The weight of any such item can be found on its detail page. To reflect the policies of the shipping companies we use, all weights will be rounded up to the next full pound.
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