Description
Air intake connection to the turbo for the 1.6 HDi engine for Citroën and Peugeot vehicles.
Product Overview
High-quality turbo inlet hose designed for 1.6 HDi turbocharged engines used across several Citroën and Peugeot models. This hose provides a sealed, flexible connection between the air intake/intercooler and the turbocharger, resisting heat, pressure and contamination to maintain correct boost delivery and responsive engine performance. OE-style fit and dimensions ensure proper installation and durability under normal operating conditions.
Technical Information
- Manufacturer: Stellantis
- Model: 1.6 HDi (turbo diesel)
- Product Codes: 9656953680, 9687883780, 143453, 1434E1, NFP
- Additional Numbers: 121000, 14340
Compatible Models
Citroën: Berlingo, C3, C3 Picasso, C4, C4 Picasso, C5, Xsara Picasso. Peugeot: 307, 308, 407, Partner.
How To Replace
- Allow the engine to cool before beginning work.
- Locate the turbo inlet hose between the airbox/intercooler and the turbocharger.
- Loosen and remove the retaining clamps or fasteners at both ends of the hose.
- Remove the old hose and inspect mating connections, clamps and sealing surfaces for wear, oil contamination or damage.
- Fit the new hose in the correct orientation, ensuring full seating on the pipe ends.
- Refit and tighten clamps to the manufacturer’s specifications or until securely fastened. Replace corroded or damaged clamps with new ones.
- Start the engine and inspect for leaks under idle and light load; verify restored boost response during a short test drive.
Recommended Installation
Replacement is generally straightforward for experienced DIY mechanics and workshops. Work on a cool engine, use the correct clamp type, and ensure clean mating surfaces to prevent leaks. If access is limited or if additional components must be removed to reach the hose, professional installation is recommended to avoid accidental damage to nearby sensors or hoses.
Why This Part Fails Most Often
- Age and heat cycling causing cracking, hardening or collapse of the hose material.
- Oil contamination from turbo seals, which degrades rubber and accelerates failure.
- Physical damage from road debris or improper handling during previous repairs.
- Loose or corroded clamps allowing boost leaks, resulting in loss of power, increased turbo lag and poor drivability.
OE product codes are included to help locate the correct replacement. Order this turbo inlet hose to restore reliable boost delivery, improve throttle response and prevent common turbo inlet leaks.







