This Complete Cylinder Head Assembly (Camshaft and Valves) is a direct-fit solution for 1.6 HDi engines and is often searched under codes 0200HS and 0801FC. Designed for professional workshops and experienced DIY mechanics, the unit saves time during an engine overhaul and restores reliable breathing and timing to affected engines. Listing key engine codes (9H06 / 9HF / 9HN / 9HP) and product numbers increases visibility in searches and helps you find the exact replacement part quickly.

Technical Information

• Manufacturer: Stellantis (Citroën, Peugeot)
• Model: 1.6 HDi (Engine Codes: 9H06, 9HF, 9HN, 9HP)
• Product Codes: 0200HS, 0801FC
• Other Numbers: 9H06

Fitment / Compatible Models

Fits many vehicles equipped with the 1.6 HDi engines listed above, including examples:

• Citroën Berlingo III
• Citroën C3 II
• Citroën C3 Picasso
• Citroën C4 II
• Peugeot 207
• Peugeot 308
• Peugeot Partner Tepee

Function And Application

The cylinder head houses the camshaft, valves, valve springs and guides, and provides the sealing surface for the head gasket. It controls air intake and exhaust timing, valve actuation and contributes to combustion chamber geometry. A properly functioning head and camshaft are essential for correct valve timing, compression, fuel economy and emissions.

Replacement And Installation

Replacing a cylinder head is an intermediate-to-advanced task. Typical workflow:

• Drain coolant and oil, remove intake and exhaust manifolds, ancillaries and timing cover.
• Mark and align timing positions before removing the timing belt/chain; maintain camshaft and crankshaft timing alignment.
• Remove rocker arms/valve train components and unbolt head studs/bolts in the correct sequence.
• Lift the head carefully, inspect mating surfaces, check flatness and assess valve/camshaft wear.
• Fit a new head gasket, clean mating surfaces, replace any worn timing components (belt/chain, tensioner, idlers) and water pump as required.
• Tighten head bolts/studs to manufacturer torque and sequence using the factory service manual; follow any specified re-torque or stretch bolt procedures.
• After assembly, refill fluids, bleed cooling system, perform compression or leak-down test and check for leaks.

Recommended Checks: Camshaft lobe condition, valve seats and guides, valve stem seals, head surface flatness, and oil/coolant passages for blockage. Replace soft parts (gaskets, seals, tensioners) during reassembly for long-term reliability.

Installation Recommendations

• Use Manufacturer Service Manual For Torque Values And Sequences.
• Always Replace The Head Gasket And Use New Timing Components When The Head Is Removed.
• Clean All Mating Surfaces Thoroughly And Verify Head Flatness On A Surface Plate.
• Inspect Camshaft Lobes And Bearing Journals; Replace If Excessive Wear Or Scoring Is Found.
• Perform Compression Or Leak-Down Test After Installation To Confirm Sealing.
• Follow Proper Engine Timing Procedures; Incorrect Timing Can Cause Valve Damage.

Why This Part Fails Most Often

• Overheating Leading To Warped Head Or Cracked Casting — Often Caused By Cooling System Failure.
• Head Gasket Failure Due To Age, Overheating Or Poor Sealing.
• Valve Wear Or Seat Recession From Insufficient Lubrication Or Contaminated Fuel/Oil.
• Timing Belt/Chain Failure Causing Valve And Seat Damage.
• Corrosion From Electrolysis Or Long-Term Coolant Neglect.

Condition Note: The Unit Originates From A Fully Functional Engine With 148000 Km; The Cylinder Head Is Complete With Camshaft And Valves.

This camshaft assembly contains both the intake and exhaust cam components designed for the 1.4 HDi 16V (8HY) 66 kW diesel engines used on selected Citroën and Peugeot models. It Restores Precise Valve Timing, Ensures Smooth Combustion And Helps Recover Engine Power And Driveability When The Original Camshaft Or Its Wear Parts Begin To Degrade. The Unit Is Supplied With The Core Mechanical Components Required For Direct Replacement In The Cylinder Head Where Applicable.

Key Benefits

Reliable Fitment For Common PSA 1.4 HDi Applications, Easy To Install For Experienced Technicians, Improves Engine Smoothness And Reduces Valve-Train Noise When Compared To Worn Components. Ideal For Garages And Skilled DIY Mechanics Who Search By Part Number (0801Z9 / 0801AH).

Fitment And Applications

Engine: 1.4 HDi 16V (8HY) 66 kW
Typical Vehicle Examples: Citroën C3, Peugeot 1007

Signs Of Failure

• Increased Valve-Train Noise Or Ticking From The Cylinder Head.
• Loss Of Power, Hesitation Or Rough Idle Due To Incorrect Valve Timing.
• Oil Contamination Around The Camshaft Area Or Excessive Wear On Cam Lobes.
• Check Engine Light Related To Misfires Or Camshaft Position Sensors.

Replacement And Installation Notes

Replacement Requires Access To The Cylinder Head Timing Area. Typical Steps Include Draining Engine Oil As Needed, Removing Engine Covers And Drive Components That Block Access, Setting Engine To Top Dead Center To Preserve Timing Reference, Removing The Old Camshaft Assembly, Installing The New Assembly While Respecting Timing Marks, And Reassembling Components Using Manufacturer Torque Specifications. After Installation, Prime The Lubrication System If Required And Verify Valve Timing And Idle Behavior Before Road Testing.

Mounting Recommendations

Always Work With The Correct Tools And Follow Manufacturer Procedures. Inspect Timing Drive Components (Tensioner, Idlers, Belt/Chain) And Replace Worn Items During Camshaft Replacement To Avoid Premature Failure. Use New Gaskets And Fasteners Where Specified. It Is Recommended That The Installation Be Performed By A Qualified Technician Or An Experienced DIY Mechanic Familiar With PSA Engines.

Why This Part Commonly Fails

Camshaft Wear Or Failure On Diesel Engines Like The 1.4 HDi Is Most Often Caused By Poor Lubrication (Extended Oil-Change Intervals Or Oil Contamination), High Mileage And Normal Wear, Or Faulty Timing Drive Components That Allow Excessive Play. Insufficient Oil Pressure Or Debris In The Oil Can Accelerate Cam Lobe And Bearing Damage.

Technical Information

• Manufacturer: Citroën / Peugeot (Stellantis)
• Model: 1.4 HDi 16V (8HY) 66 kW — Typical Fitment: Citroën C3; Peugeot 1007
• Product Codes: 0801Z9, 0801AH
• Additional Numbers: Not Specified

Recommendation

When Replacing The Camshaft Assembly, Also Check Oil Condition, Replace The Oil Filter, And Inspect Related Valve-Train Components. Use Correct Torque Settings And Follow A Controlled Break-In Procedure If Applicable. Regular Oil Changes With Manufacturer-Specified Fluids Greatly Extend The Service Life Of Camshafts On Diesel Engines.