Description
Turbo intake hose for 1.4 HDi 66 kW engines for Citroën and Peugeot vehicles.
This turbo intake hose is designed for the 1.4 HDi (66 kW) diesel engines used in certain Citroën and Peugeot models. It routes compressed air between the turbocharger and the intake system (intercooler or intake manifold depending on vehicle configuration), ensuring steady boost delivery and optimal engine response. The hose matches original equipment part numbers commonly used by professionals and DIY mechanics, making it easy to find and replace when boost leaks or degradation occur. Searchable by product codes 9646926180 and 143423, this component is a practical spare for workshops and home repairs.
Technical Information
- Manufacturer: Stellantis (Citroën / Peugeot)
- Model: 1.4 HDi 66 kW — Citroën C3; Peugeot 1007
- Product Codes: 9646926180, 143423
- Other Numbers: NFP
Function And Where It Fits
The hose carries pressurized, cooled air from the turbocharger toward the engine intake. It is a critical link in the forced induction system: any crack, split or loose clamp causes boost loss, reduced power, increased turbo spool time and can trigger fault codes related to turbo boost. The part is typically located between the turbocharger compressor outlet and the intercooler or between the intercooler and the throttle body, depending on the vehicle layout.
Signs Of Failure
Common symptoms that indicate the intake hose needs attention: noticeable loss of power under acceleration, increased turbo lag, hissing or whistling noises under load, fluctuating idle or boost-related fault codes. Visual inspection may reveal oil residue, cracks, softening or collapsed sections of the rubber, or corroded/clipped hose clamps.
Installation Recommendations
- Allow The Engine To Cool And Relieve Any Residual Boost Pressure Before Starting Work.
- Loosen Hose Clamps And Remove Any Retaining Clips Or Brackets Securing The Hose.
- Carefully Remove The Old Hose, Inspecting Intercooler Connections, Turbo Outlet And Adjacent Vacuum Lines For Damage Or Oil Contamination.
- Fit The New Hose In The Correct Orientation; Ensure Sealing Surfaces Are Clean And Free From Debris.
- Use New, High-Quality Clamps Tightened Evenly To Manufacturer Torque Recommendations Where Available.
- After Installation, Start The Engine And Check For Boost Leaks While Revving Lightly; Recheck Clamps After A Short Test Drive.
- Inspect Associated Components Such As Intercooler Seals, Turbo Oil Seals And Vacuum Lines If Oil Or Damage Is Found.
Most Common Failure Reasons
- Aging And Heat Exposure: Rubber And Silicone Materials Harden, Crack Or Become Brittle Over Time.
- Oil Contamination From Turbocharger: Oil Leaks Accelerate Hose Deterioration And Soften Seals.
- Loose Or Damaged Clamps: Inadequate Clamping Leads To Movement And Abrasion At Sealing Faces.
- Mechanical Damage: Impact From Road Debris Or Incorrect Routing Can Cause Tears Or Pinch Points.
- Pressure Spikes: Faulty Wastegate Or Boost Control Can Cause Overpressure And Premature Failure.
Replacing a worn or leaking turbo intake hose restores proper boost pressure and drivability quickly and cost-effectively. For workshops and DIY mechanics, keeping the correct OE numbers (9646926180, 143423) on hand speeds up identification and ensures the right fit for Citroën C3 and Peugeot 1007 vehicles equipped with the 1.4 HDi 66 kW engine.
