Description
Intake resonator connector for CITROËN and PEUGEOT vehicles with 2.0i engines.
Product Overview
This intake resonator connector is designed for the air intake assembly on Citroën and Peugeot 2.0i engines. It links the intake resonator to the airbox/throttle-body ducting, helping to reduce induction noise and to maintain correct airflow dynamics. Ideal for professional workshops and DIY mechanics, the part is commonly searched by its product codes and OE numbers (see Technical Information). Replacing a worn or cracked connector restores a proper sealing of the intake tract, prevents vacuum leaks and helps to stabilise idle, drivability and fuel trim.
Technical Information
- Manufacturer: Stellantis (Citroën / Peugeot)
- Model: Citroën C5, Peugeot 407 (vehicles with 2.0i engines)
- Product Codes: 9626612880, 14265E
- Additional Numbers: NFP (as supplied in original listing)
Function And Fitment
The resonator connector is a short duct element that joins the intake resonator to the rest of the intake system. Its role is to smooth airflow pulses, dampen intake noise and keep the intake tract sealed under vacuum. A proper seal prevents unmetered air from entering the engine, which otherwise can cause rough idle, increased emissions and incorrect air/fuel mixture readings.
Common Failure Modes
Failure typically occurs due to age-related material degradation, heat cycling and mechanical stress. Typical causes include: cracking or splitting of the rubber/plastic material, broken or weakened mounting clips, deformation from engine bay heat, and contamination by oil or debris that accelerates wear. A damaged connector usually produces audible intake whistling, fluctuating idle or intermittent misfires related to vacuum leaks.
Replacement And Installation Recommendation
Replacement is straightforward for a trained technician or competent DIY mechanic. Typical procedure:
- Ensure engine is cool before starting work.
- Remove or lift the airbox cover to access the resonator and connector (retain screws/clips in a safe place).
- Loosen hose clamps or unclip fasteners securing the connector to the resonator and airbox/throttle duct.
- Remove the old connector, inspect adjacent hoses, clamps and mounting points for damage.
- Fit the new connector ensuring proper orientation and full seating on both mating surfaces; replace any worn clamps or clips.
- Tighten clamps to the correct torque (hand tight plus a small turn with a screwdriver or torque to manufacturer guidance where available).
- Start the engine and check for intake leaks, listen for abnormal induction noise, and confirm stable idle and engine response.
Recommended tools: basic hand tools, screwdrivers, pliers for clips and hose clamps. Replace associated clamps or seals if they show corrosion or wear. If unsure about access or hidden clips, consult a workshop manual for the specific vehicle.
Why Replace It
A new connector restores intake sealing and acoustic performance, eliminates vacuum leaks that affect engine management and can prevent diagnostic confusion (false air readings). Replacing the connector is a cost-effective repair compared with addressing secondary issues such as erratic idle, increased fuel consumption or sensor-related fault codes.
Notes For Professionals
Part numbers are commonly used by technicians to find the correct replacement; verify physical match with the removed part when possible. No fixed replacement interval exists — inspect the intake tract during regular service intervals and replace the connector if any signs of cracking, distortion or leakage are present.
