Hella 009149651 Mass Air Flow Sensor MAF

The Hella 009149651 is a direct-fit replacement Mass Air Flow (MAF) Sensor engineered to restore precise air intake measurement and optimal engine management performance. Manufactured by Hella — a globally recognized OE supplier to major automakers — this sensor is built to meet or exceed original equipment specifications for a reliable, long-lasting repair.

The mass air flow sensor (also known as an air mass meter or MAF sensor) monitors the volume and density of air entering the engine and relays that data to the ECU. This enables the engine management system to calculate the correct fuel injection quantity for efficient combustion. A failed or degraded MAF sensor can cause rough idle, poor fuel economy, reduced power, increased emissions, and potential damage to related components such as the EGR valve and particulate filter.

Key Features:

• OE-level accuracy — designed and built to Hella's original equipment standards for precise air mass measurement
• Hot-film sensor technology — delivers high measuring precision and fast response across varying engine load conditions
• Robust construction — engineered to withstand diverse environmental conditions for a long service life
• Direct-fit replacement — matches original connector and housing geometry for straightforward installation
• Supports engine efficiency — helps maintain correct air-to-fuel ratios, supporting stable combustion, optimal fuel economy, and reduced emissions

Hella recommends professional installation. Always consult your vehicle manufacturer's service manual before replacing the mass air flow sensor. Replace a faulty MAF sensor promptly to prevent downstream effects on fuel trim, exhaust sensors, and engine management reliability.