C-Tzu Mass Air Flow (MAF) Sensor 2133458 — Direct-Fit Replacement for Chevy/GMC/Buick, OEM-Style Accuracy

The C-Tzu 2133458 Mass Air Flow (MAF) Meter is a direct-fit replacement sensor that measures incoming air to help your engine maintain the correct air–fuel ratio.

The C-Tzu 2133458 MAF sensor (also referenced as compatible with part number 25008302) is engineered to match factory specifications for select Chevy, GMC and Buick vehicles. Built with durable materials to meet or exceed OEM standards, this sensor restores accurate airflow readings for the engine control unit (ECU), helping the vehicle run smoothly after a faulty or failing MAF has caused drivability issues or a check engine light.

Which vehicles will this C-Tzu MAF sensor fit?

This MAF meter is designed for broad compatibility with several General Motors platforms from the late 1990s to mid-2000s. It fits applications such as the Chevy Astro Van, Chevy Blazer/S10 ranges, and Buick Century models where the original part number 25008302 was specified.

• 2002–2005 Chevy Astro Van (models using 25008302)
• 1996–2001 Chevy Blazer and S10 models matching the listed OEM part
• 2000–2005 Buick Century configurations requiring the 25008302 replacement
• Direct-fit design eliminates need for modification on compatible vehicles

How does swapping in this MAF sensor help my vehicle perform?

Replacing a degraded or failing MAF sensor restores precise measurement of the volume and density of air entering the engine, which the ECU uses to calculate fuel delivery. Restoring accurate airflow input can improve throttle response and fuel metering while reducing rough idle and hesitation symptoms.

• Helps the ECU maintain optimal air–fuel mixture for combustion control
• Can reduce rough idling, stalling and hesitations caused by bad airflow readings
• Supports proper catalytic converter function by helping limit excessive fuel
• May clear MAF-related diagnostic trouble codes when installed correctly

What should I know about installation and maintenance?

Installation is straightforward because the C-Tzu 2133458 is built as a direct replacement for the original equipment on compatible models. Minimal hand tools are typically needed; cleaning the air box and replacing the air filter before installing the MAF sensor is recommended to avoid contamination and false readings.

• Direct-replacement connector and mounting points for easy swap-in
• Inspect and replace the air filter before installation to prevent faults
• Use basic hand tools; no ECU reprogramming usually required
• Follow vehicle-specific torque settings and safety steps during fitment

What quality and support does C-Tzu provide for this part?

The C-Tzu MAF sensor is manufactured to meet or exceed OEM tolerances for durability and accurate sensing across a range of operating conditions. The product carries a 1-year warranty against defects, and customer support is available for warranty claims or part questions.

• Constructed from high-quality materials to ensure reliable airflow measurement
• Meets or exceeds OEM specifications for fit and function
• 1-year warranty covering manufacturing defects and performance issues
• Customer support for replacement or refund within the warranty period

Who is this for: The C-Tzu 2133458 MAF sensor is aimed at DIY mechanics, independent shops, and owners of older Chevy, GMC, and Buick vehicles that require a reliable, vehicle-specific mass air flow replacement. If you’re troubleshooting MAF-related symptoms, need a direct-fit part to restore proper engine management, or want a warranty-backed sensor built to OEM standards, this unit is designed to meet those needs.