Description
Air intake neck for 1.6 HDi engines for Citroën and Peugeot vehicles.
This used air intake neck is a direct-fit intake component for 1.6 HDi diesel engines, commonly searched under part numbers 9647392480 and 143451. It restores a sealed air path between the air filter housing and the turbo/intercooler assembly, helping to maintain correct boost pressure and engine breathing. Designed for mechanics and experienced DIYers, the part is a practical replacement when the original hose shows wear, cracks or oil contamination.
Key Benefits
- Restores Proper Airflow: Eliminates leaks that cause loss of boost and rough idling.
- OEM Fitment: Matches original mounting points and connections for straightforward installation.
- Cost-Effective Repair: Ideal when the OEM rubber/plastic elbow is cracked, torn or hardened by age.
Compatibility
Designed for vehicles with 1.6 HDi engines. Common applications include:
- Citroën Berlingo (1.6 HDi)
- Citroën Xsara Picasso (1.6 HDi)
- Peugeot Partner (1.6 HDi)
Technical Information
- Manufacturer: Stellantis (Citroën / Peugeot)
- Model: 1.6 HDi
- Product Codes: 9647392480, 143451, NFP
- Other Numbers: —
Installation Recommendations
Replacement is straightforward for a competent mechanic or an experienced DIYer. Typical steps:
- Park the vehicle on a level surface and allow the engine to cool.
- Loosen the hose clamps at both ends of the intake neck and remove any retaining clips or brackets.
- If sensors or small fittings are attached to the hose, carefully disconnect and transfer them to the new part.
- Remove the old hose, inspect mating flanges, the air filter box outlet and turbo/intercooler inlet for damage or oil residue.
- Fit the new intake neck, align all connections and tighten clamps evenly to secure a leak-free seal. Replace clamps or seals if corroded or deformed.
- Start the engine and check for air leaks, loose fittings and correct idle/boost response.
Common Failure Reasons
- Ageing And Heat: Rubber and plastic harden, crack or lose flexibility after prolonged exposure to heat cycles.
- Oil Contamination: Turbocharged engines can allow oil into the intake path; oil-soaked hoses degrade faster.
- Mechanical Damage: Abrasion, impact in the engine bay or poor clamp fitment can cause tears or disconnections.
- Vibration And Movement: Repeated engine movement without properly secured clamps accelerates wear at the joints.
Part numbers such as 9647392480 and 143451 are commonly used when searching for this component — including them in your search increases the chance of finding an exact match. Inspect the removed piece for transferred sensors or mounts to ensure full compatibility before final installation.
