Description
Intake air hose 1.4 HDi 66 kW for Citroën and Peugeot vehicles.
This replacement intake air hose is designed for the 1.4 HDi 66 kW diesel engines used on selected Citroën and Peugeot models. Ideal for professional workshops and experienced DIY mechanics, the hose restores proper airflow to the turbocharger/intake system, eliminating boost leaks that cause power loss and poor drivability. Commonly searched by product numbers 9646926280 and 143422, this part is a direct-fit option for applications listed below and replaces worn or damaged original hoses to recover engine response and fuel economy.
Technical Information
- Manufacturer: Stellantis (Citroën / Peugeot)
- Model: Citroën C3, Peugeot 1007
- Product Codes: 9646926280, 143422
- Additional Numbers: NFP
- Engine Fitment: 1.4 HDi (66 kW)
Installation Recommendations
Install with the engine cold and the ignition off. Basic replacement steps:
- Loosen and remove clamps securing the old hose at the airbox and turbo/intercooler connections.
- Carefully detach any sensor connectors or vacuum lines routed along the hose—note their positions for reinstallation.
- Remove the old hose, clean mating surfaces on the airbox and turbo/intercooler to remove oil and debris.
- Fit the new hose in the correct orientation, ensuring full engagement on both ends; reattach vacuum lines and sensors.
- Secure clamps evenly. Use stainless-steel constant-tension clamps where possible to maintain a reliable seal under boost cycles.
- Start the engine and check for air leaks at idle and under light load; road-test to confirm restored boost response and no unusual noises.
Why This Part Fails Most Often
- Aging Rubber And Heat Exposure: Over time the hose material hardens and cracks from engine bay heat cycles.
- Oil Contamination: Blow-by or oil carryover from the PCV/EGR system accelerates rubber degradation and softening.
- Clamp Failure Or Poor Fit: Loose or corroded clamps let the hose slip or leak under boost pressure.
- Physical Damage: Abrasion from adjacent components or impact during maintenance can create tears or holes.
- Internal Collapsing Or Deformation: Repeated vacuum/pressure cycles and weakened walls can reduce airflow efficiency.
Signs of a failing intake hose include loss of power, increased turbo lag, black exhaust smoke under acceleration, rough or unstable idle, and illumination of the engine management light. Inspect the hose at each major service or immediately if these symptoms appear. Replacing a compromised hose is a cost-effective repair that typically restores engine performance and fuel efficiency.
