C-Tzu Mass Air Flow (MAF) Sensor 2133458 — direct replacement, plug-and-play, 1-year warranty

The C-Tzu 2133458 Mass Air Flow (MAF) Sensor is a direct-replacement airflow meter engineered to restore accurate air-fuel measurement and help return drivability, fuel efficiency, and emissions control to factory-like performance.

This MAF sensor is a precision-engineered replacement for part number 25008302, built to meet or exceed OEM tolerances and fit a range of Chevy, GMC, and Buick vehicles. Designed for easy swap-in installation, the C-Tzu 2133458 reads incoming engine air and communicates airflow data to your engine control module so fuel delivery can be adjusted correctly. It’s manufactured from durable materials, covered by a one-year warranty, and intended for owners who need a reliable, affordable alternative to dealer parts.

How will this MAF sensor affect everyday driving?

Replacing a failing MAF with the C-Tzu 2133458 can reduce rough idling, hesitation, and erratic throttle response by restoring accurate airflow readings. The engine management system receives correct inputs again, which improves combustion stability and can help return miles per gallon toward expected levels.

• Corrects air measurement to optimize fuel trims
• Helps reduce stalling and uneven idle
• Can reduce check-engine codes related to airflow

Which vehicles is this part compatible with?

This MAF sensor is made as a direct replacement for applications that originally used part number 25008302. It fits multiple late-1990s and early-2000s GM platforms, offering broad interchangeability where that OEM number applies.

• Chevy Astro Van: 2002–2005 models
• Chevy Blazer S10: 1996–2001 models
• Buick Century: 2000–2005 models
• Several compatible GMC models that use the same OEM part number

How difficult is installation and what should I prepare?

Installation is straightforward for DIYers familiar with basic engine bay work; the C-Tzu 2133458 is a plug-and-play replacement that mounts in the factory location and connects to the existing wiring harness. Minimal tools are required, and taking a few preparatory steps improves success and prevents recurring faults.

• Recommended: clean airbox and replace intake filter before fitting
• Unplug electrical connector, remove mounting screws, swap sensor, re-torque fasteners
• Clear related diagnostic codes after installation if needed

What does the warranty cover and how long is it valid?

C-Tzu stands behind this MAF sensor with a one-year limited warranty that covers manufacturing defects and functional failures under normal use. If the sensor fails within the warranty period due to workmanship or materials, contact support for replacement or refund options.

• One-year coverage from date of purchase
• Includes replacement or refund for qualifying defects
• Warranty does not cover damage from improper installation or contamination

Who is this for: The C-Tzu 2133458 Mass Air Flow Sensor is aimed at owners and independent mechanics working on compatible Chevy, GMC, and Buick vehicles who want an OEM-equivalent replacement without dealer prices. It’s also suitable for fleet maintenance teams and technicians wanting a durable, easily installed MAF that helps restore drivability and keeps emissions systems functioning correctly.