Description
Filter box for Citroën C4 and Peugeot 307 with 2.0i engines.
This air filter box (airbox) is designed for Citroën C4 and Peugeot 307 models equipped with 2.0i petrol engines. The housing secures the air filter element, directs intake airflow, and protects the intake tract from dirt and water. Mechanics and DIY enthusiasts often search by part numbers 9643567080 or 1427J8 when looking for a direct replacement. A correctly fitted airbox ensures accurate airflow measurement, stable idling and optimal engine performance.
Technical Information
Manufacturer: Stellantis / Citroën / Peugeot
Model: Citroën C4; Peugeot 307 (2.0i engines)
Product Codes: 9643567080
Additional Numbers: 1427J8
Application And Fitment
Fits the intake system of 2.0i petrol variants of Citroën C4 and Peugeot 307. Confirm fitment by matching the part numbers 9643567080 or 1427J8 to the original housing. The airbox is compatible with the standard intake layout where the mass air flow (MAF) sensor or intake duct mounts directly to the housing.
Installation Recommendations
- Tools Required: screwdriver or Torx set, 8–10 mm socket, trim tool or small pry for clips.
- Procedure: Remove clamps and intake hoses, unclip or unscrew the airbox fasteners, gently disconnect any attached MAF sensor or hoses, replace the housing and reinstall clamps ensuring a tight seal. Replace the air filter element at the same time.
- Tips: Inspect and clean sealing surfaces and intake ducts before installation. Refit the MAF sensor carefully and avoid contaminating the sensor element. Ensure all clamps are secure to prevent unmetered air leaks.
Most Common Failure Reasons
Airbox failure is usually caused by physical damage, brittle plastic and worn clips. Common causes include impact damage, prolonged exposure to heat that makes the plastic brittle, degraded rubber seals and improper removal that breaks mounting tabs. Symptoms of a failing airbox include whistling or intake noise, unstable idle, decreased engine power, increased fuel consumption and possible fault codes related to intake airflow. Because the housing protects the air filter, any cracks or poor sealing will allow unfiltered air and contaminants into the intake, which can accelerate wear on downstream components.
Why Choose This Replacement
Choosing a correctly numbered replacement housing (9643567080 / 1427J8) restores the original intake geometry and sealing. For workshops and home mechanics, replacing a damaged airbox is a cost-effective way to eliminate intake leaks and maintain engine performance. Always pair the new housing with a new air filter element and check associated intake components (hoses, clamps, MAF sensor) during the service.
