High-quality replacement coolant pipe designed for the heater core circuit on 2.0 HDi RH02 engines. This part (6466VF) delivers reliable coolant flow between the engine and the heater exchanger, restoring proper cabin heating and preventing coolant loss. Ideal for professional garages and experienced DIYers who service Citroën and Peugeot models: the hose is commonly searched by part number 6466VF and fitted to a range of Stellantis vehicles. Fitment accuracy and robust construction reduce the risk of overheating and coolant leaks, improving vehicle comfort and engine thermal stability.

Technical Information

• Manufacturer: Stellantis / Citroën / Peugeot
• Model(s): Citroen C4 II; Citroën C4 Picasso II; Citroen C5 X7; DS4; DS5; PEUGEOT 3008 I; Peugeot 308; PEUGEOT 5008 I
• Product Codes: 6466VF
• Additional Numbers: Engine Code RH02

Function

The pipe conveys engine coolant to and from the heater exchanger (heater core). It Is A Critical Part Of The Cabin Heating Circuit And Helps Maintain Correct Engine Temperature By Ensuring Continuous Flow Through The Heater Matrix When The Heating System Is Active.

Common Failure Causes

• Aging And Heat Degradation: Rubber And Composite Materials Harden, Crack Or Split After Years Of Thermal Cycling.
• Chemical Degradation: Incorrect Coolant Or Contamination Accelerates Material Breakdown.
• Mechanical Damage: Chafing Against Other Components, Impact, Or Improper Clamping Can Cause Leaks.
• Corroded Or Worn Clamps: Loose Or Damaged Clamps Lead To Seepage And Pressure Loss.

Replacement Interval And Inspection

Inspect Heater Hoses At Every Scheduled Service Or If You Notice Any Coolant Smell, Visible Leaks, Soft Or Brittle Sections, Or Reduced Cabin Heating Performance. Typical Service Life Varies With Use And Environment; Replace At The First Signs Of Wear—Commonly Around 6–10 Years Under Normal Conditions, Shorter If Exposed To Contamination Or Excess Heat.

Installation Recommendations

• Work On A Fully Cooled Engine To Avoid Scalding. Release System Pressure Carefully Before Opening The Cooling Circuit.
• Drain Enough Coolant To Prevent Spillage When Removing The Hose. Collect And Dispose Of Coolant According To Local Regulations.
• Replace Hose Clamps With New, Correct-Size Clamps. Check Adjacent Hoses And Seals; Replace If Worn.
• Ensure Correct Routing And Secure Fastening To Prevent Chafing. Avoid Sharp Bends That Could Restrict Flow.
• Refill Coolant Using The Correct Specification For The Vehicle, Then Bleed The Cooling System To Remove Air Pockets (Follow Manufacturer Procedure).
• After Installation, Run The Engine To Operating Temperature And Recheck For Leaks; Inspect Heater Functionality.
• Recommended For Professional Fitment If Access Requires Dashboard Or Heater Matrix Removal; Otherwise Suitable For Experienced DIY Technicians With Proper Tools.

Why Choose This Part

Fast Identification By Part Number 6466VF, Direct Fit For Common Citroën And Peugeot 2.0 HDi Applications, And Durable Construction Designed To Restore Heater Circuit Integrity. A Correctly Replaced Heater Hose Eliminates Coolant Leaks, Restores Cabin Heating, And Helps Maintain Engine Cooling Efficiency.

Product Overview

This coolant pipe (part code 6466VE) connects the engine cooling circuit to the heater core, enabling warm coolant to flow into the cabin heating exchanger. It is designed for vehicles equipped with the 2.0 HDI RH02 engine and is a direct-fit replacement for worn or damaged original hoses. Ideal for professional workshops and experienced DIY mechanics looking for a reliable repair part.

Fitment And Compatible Models

Commonly fitted to the following models with 2.0 HDI RH02 engine:

• Citroën C4 II
• Citroën C4 Picasso II
• Citroën C5 X7
• DS4
• DS5
• Peugeot 3008 I
• Peugeot 308
• Peugeot 5008 I

Function

The pipe routes hot coolant from the engine to the heater exchanger (heater core). When the heater valve opens, coolant passes through the core and transfers heat to the air blown into the passenger compartment. A sound, leak-free hose is essential for cabin heating performance and for maintaining correct engine operating temperature.

Installation

Replacement is straightforward for a trained mechanic or competent DIYer. Typical procedure:

• Allow The Engine To Cool Completely And Work On A Cold System.
• Place A Drain Pan Under The Vehicle And Drain Coolant To The Appropriate Level To Prevent Spillage.
• Loosen Hose Clamps Or Remove Fasteners Securing The Pipe To The Heater Exchanger And Engine Connections.
• Carefully Remove The Old Pipe, Inspecting Connectors, Heater Core Pipes And Adjacent Hoses For Corrosion Or Damage.
• Fit The New Pipe In Correct Orientation, Replace Any Worn Clamps With New Quality Clamps, And Secure All Connections.
• Refill The Cooling System With Manufacturer-Recommended Coolant, Bleed Air From The System According To The Vehicle Procedure, And Check For Leaks With The Engine At Operating Temperature.

Installation Recommendations

• Use New Hose Clamps To Ensure Reliable Sealing; Reusing Old Clamps Can Lead To Leaks.
• Inspect The Heater Core Pipes And Nearby Hoses For Corrosion Or Wear; Replace Adjacent Components If Needed.
• Always Refill With The Manufacturer-Approved Coolant Specification And Perform Proper Air Bleeding To Avoid Overheating Or Cold Spots In The Heater.
• Dispose Of Used Coolant According To Local Regulations.

Most Common Failure Reasons

Hoses and pipes to the heater exchanger typically fail due to age-related rubber degradation, repeated heat cycling, mechanical abrasion from engine movement, chemical damage from incorrect or contaminated coolant, and poor clamping or installation. Small leaks can lead to loss of heating function, engine overheating, or coolant smell in the cabin, so early replacement at the first sign of cracks, swelling, stiffness, or seepage is recommended.

Technical Information

• Manufacturer: Stellantis / Citroën / Peugeot
• Model: Vehicles With 2.0 HDI RH02 Engine (See Fitment List)
• Product Codes: 6466VE
• Additional Numbers: Engine Code RH02

Why Choose This Part

This coolant pipe is a practical, cost-effective repair for restoring heater function and coolant circuit integrity on compatible Citroën and Peugeot models. It suits professional workshops that require dependable direct-fit parts and DIY mechanics who demand clear fitment and straightforward installation steps.

Premium-quality replacement water hose designed for Citroën and Peugeot 2.0 HDi RH02 engines (OEM Reference 1343LJ). Built to restore reliable coolant flow in the engine cooling circuit, this hose is an ideal choice for professional mechanics and experienced DIYers who need an exact-fit, durable part that matches factory routing and connection points. The hose resists high temperatures, pressure cycles and common contaminants found in modern diesel cooling systems, helping prevent overheating and coolant loss.

Key Benefits

• Direct Fit For Original Routing: Ensures correct clearance and connection to thermostat, water pump, and radiator components.
• Durable Material: Reinforced elastomer construction for resistance to heat, pressure and coolant additives.
• OEM Reference Included: Commonly Searched By Code 1343LJ For Faster Identification.
• Suitable For Workshop Or Home Repair: Clear installation steps and checks tailored to 2.0 HDi engines.

Typical Applications

Compatible With The Following Models (Depending On Engine Variant And Year): Citroën C4 II; Citroën C4 Picasso II; Citroën C5 X7; Citroën C8; DS4; DS5; Peugeot 3008 I; Peugeot 308; Peugeot 5008 I; Peugeot 807. Always Confirm Fitment By Matching The Product Code 1343LJ And Visual Comparison With The Removed Hose.

Technical Information

• Manufacturer: Stellantis / Citroën / Peugeot
• Model: Citroën C4 II; Citroën C4 Picasso II; Citroën C5 X7; Citroën C8; DS4; DS5; Peugeot 3008 I; Peugeot 308; Peugeot 5008 I; Peugeot 807
• Product Codes: 1343LJ
• Other Numbers: N/A

Function And Role

This Water Hose Is Part Of The Engine Cooling Circuit. It Transports Engine Coolant Between Cooling System Components (Such As The Thermostat Housing, Radiator, Heater Matrix Or Water Pump) Maintaining Correct Engine Operating Temperature. A Sound Hose Ensures Stable Coolant Flow, Prevents External Leaks And Avoids Localized Overheating.

Why This Part Fails

• Age And Heat Degradation: Repeated Thermal Cycling Causes Rubber And Elastomer Layers To Harden, Crack Or Become Brittle.
• Chemical Attack: Incorrect Or Contaminated Coolant, Oil Leaks Or Fuel Contamination Can Soften Or Swell Hose Material.
• Pressure Pulses And Internal Collapse: Internal Reinforcement Can Fatigue, Causing Collapse Under Vacuum Or High Flow Conditions.
• Mechanical Wear: Chafing Against Adjacent Components, Improper Clamps Or Incorrect Installation Angles.
• Recommended Replacement Interval: Typically Replace At Signs Of Wear Or During Major Cooling System Service; Many Hoses Last Between 5–10 Years Or Roughly 80,000–150,000 Km Depending On Use And Service History.

Installation Recommendations

• Work On A Cold Engine: Allow Engine And Cooling System To Cool Completely Before Any Intervention.
• Drain Coolant To A Safe Level, Then Remove Old Clamps And Hose Carefully To Avoid Damaging Adjacent Components.
• Compare New Hose With Removed Part For Correct Shape, Length And Connection Diameters Before Fitting.
• Use New Quality Hose Clamps And Ensure Clamps Are Placed Correctly Over Reinforced Sections; Avoid Over-Tightening Which Can Cut Into Hose Material.
• Refill With Correct Type And Concentration Of Coolant Recommended For Citroën/Peugeot Diesel Engines; Bleed The Cooling System According To Manufacturer Procedure To Remove Air Pockets.
• Inspect Thermostat, Water Pump, Radiator And Adjacent Hoses While Replacing To Prevent Future Failures.
• Final Check: Start Engine, Bring To Operating Temperature And Inspect For Leaks, Hose Movement And Proper Coolant Circulation.

Notes For Professionals

Mechanics Should Verify Routing And Clearance During Installation, Especially On Turbocharged Variants Where Heat Exposure Is Greater. Keep Replacement Clamps And Service-Grade Coolant On-Hand To Complete The Job In One Visit. For Fleet Or High-Mileage Vehicles, Consider Replacing Multiple Hoses Simultaneously To Reduce Repeat Labor.

Summary

This Water Hose (OEM 1343LJ) Offers A Reliable, Direct-Fit Replacement For Citroën And Peugeot 2.0 HDi RH02 Engines. It Restores Proper Coolant Flow, Reduces Risk Of Overheating, And Is Suitable For Use By Professional Workshops And Experienced DIYers. Follow Standard Safety And Cooling-System Procedures During Replacement To Ensure Long Service Life.

This replacement coolant hose is designed for the PEUGEOT 3008 I (T84) and 5008 I (T87) fitted with the 2.0 HDI RH02 engine. Built to restore reliable coolant flow and prevent leaks or overheating, it is suitable for professional workshops and DIY mechanics who often search by part number 135208. The hose delivers a straightforward, cost-effective repair to the engine cooling circuit and helps maintain stable operating temperatures under typical driving conditions.

Key Benefits

• Direct-fit replacement for original equipment routing and connections.
• Durable construction resistant to heat, pressure and coolant exposure.
• Reduces risk of coolant leaks, engine overheating and related damage.
• Commonly searched and ordered by product code 135208 for fast identification.

Technical Information

• Manufacturer: Stellantis (Citroën / Peugeot)
• Model: Peugeot 3008 I (T84), Peugeot 5008 I (T87)
• Product Codes: 135208
• Additional Numbers: Engine Code 2.0 HDI RH02

Installation Recommendations

Follow these steps to replace the hose safely and ensure long-term operation:

• Allow the engine to cool completely before starting work to avoid scalding from hot coolant.
• Drain the cooling system to a level below the hose connections or remove enough coolant to prevent spillage.
• Loosen and remove hose clamps; keep track of clamp types and positions. Replace old or corroded clamps with new quality clamps.
• Remove the worn hose, clean mating surfaces and compare new hose orientation to the original to ensure correct routing without kinks.
• Fit the new hose, position clamps correctly and tighten securely but avoid over-tightening that can damage the hose or plastic fittings.
• Refill the cooling system with the correct coolant specification and bleed air from the system following the manufacturer procedure.
• Start the engine, bring to operating temperature and check for leaks. Re-check clamp tightness after a short test drive.

Why This Part Fails

• Aging and Heat Cycling: Rubber and composite hose materials degrade over time due to repeated heating and cooling cycles.
• Coolant Contamination: Corrosion or oil contamination accelerates material breakdown and softening of hose walls.
• Mechanical Damage: Abrasion against neighboring components, incorrect routing or overtightened clamps can cause leaks or ruptures.
• Clamps and Connections: Corroded or loose clamps are a frequent cause of localized leaks at hose ends.

Maintenance And Replacement Tips

• Inspect hoses and clamps at every service interval; replace at the first sign of cracks, soft spots, swelling or oil contamination.
• Consider replacing adjacent coolant hoses and worn clamps during the same service to reduce future downtime.
• Use the correct coolant type and protectant recommended for Peugeot/Citroën diesel engines to limit internal corrosion and extend hose life.

Order this part by product code 135208 for a quick match to Peugeot 3008 I (T84) and 5008 I (T87) with the 2.0 HDI RH02 engine and ensure reliable coolant circuit performance.

Technical Information:
Manufacturer: Citroën, Peugeot
Model: Citroën C8, Peugeot 807
Product Codes: 6466LR
Other Numbers: 2.0 HDI RHR, 2.2 HDI RHT

This Cooling Hose is designed for a precise fit in the mentioned models, ensuring hassle-free installation and functionality. It is a key component for proper engine cooling, and regular inspection and replacement when necessary prevent serious engine damage caused by overheating. Due to its role in the cooling system, this hose is exposed to extreme temperatures and pressures, which can lead to wear over time.

When replacing, we recommend checking the entire cooling system, including the thermostat and radiator, to ensure complete and uninterrupted engine cooling. Our range also includes additional parts for these models, which you can use for a comprehensive cooling system overhaul.

This Cooling Hose is an excellent choice for those seeking an effective and cost-efficient solution to maintain their vehicle’s performance and safety. With our selection of used auto parts, you can be confident that your car will remain in great condition.

This water hose is designed specifically for Citroën C5 and Peugeot 407 models equipped with the 2.0 HDI RHR engine. Over time, original cooling system components may wear out or suffer damage, leading to risks such as engine overheating or cooling inefficiency. The water hose with part number 6466SS provides a reliable and cost-effective replacement to restore the proper function of your vehicle’s cooling system.

Technical Information

Manufacturer: PSA Citroën Peugeot
Model: Citroën C5, Peugeot 407
Product Codes: 6466SS
Additional Numbers: N/A

Installation and Maintenance

Installing this water hose is relatively straightforward and can be performed by DIY enthusiasts with basic mechanical skills, which helps save on labor costs. Regular replacement or inspection of water hoses is an essential part of cooling system maintenance to ensure efficient coolant flow and optimal engine temperature regulation. This particular hose is engineered for the 2.0 HDI engine line, minimizing the risk of fitment issues and ensuring smooth installation.

Durability and Performance

Investing in a high-quality replacement water hose extends the lifespan of your vehicle’s cooling system and helps maintain overall engine performance and safety. While the original part may degrade due to heat cycles, pressure variations, and age, this hose offers durability and reliable sealing to prevent leaks and coolant loss, which are critical for avoiding engine damage.

If you require an effective and budget-friendly solution for your Citroën or Peugeot’s cooling system, this water hose is an ideal choice. Keep your vehicle running smoothly regardless of its mileage with this dependable replacement part.

This water hose plays a crucial role in the cooling system of your vehicle. It is designed to withstand high temperatures and pressure, which is essential for effectively cooling the engine and preventing overheating. With the hose 6466JF, you can trust that your engine will operate within optimal temperature conditions, prolonging its lifespan and maintaining high vehicle performance.

Technical Information:

• Manufacturer: PSA Peugeot Citroën
• Model: Citroën C8, Peugeot 807
• Product Codes: 6466JF
• Other Numbers: Compatible with 2.0 HDI engines type RHR

The key to the long and reliable performance of the hose is regular inspection and replacement in case of wear. For a well-maintained cooling system, it is advisable to check the condition of the hoses approximately every 50,000 km to prevent unexpected failures on the road. Replacement is quick and easy, which is appreciated by both professional and amateur mechanics.

Whether your car needs maintenance or you are trying to prevent future issues, select only authentic and specifically designed parts like our water hose 6466JF. Investing in the right replacement part ensures that your Citroën or Peugeot vehicle will continue to deliver the best possible performance.

This water hose plays a critical role in circulating coolant throughout the engine, preventing overheating and maintaining efficient temperature control. Due to wear and tear over time, hoses can become brittle, cracked, or leaky, which can lead to coolant loss and engine overheating. Regular inspection and replacement of the water hose are recommended to ensure your vehicle runs smoothly.

To replace the water hose, follow these simple steps: first, ensure the engine is cool and the vehicle is parked on a level surface. Remove any necessary components to access the hose. Disconnect the old hose from the engine and attach the new one securely. Refill the coolant and check for any leaks before starting the engine.

Technical Information

• Manufacturer: PSA Group
• Model: Peugeot 307 2.0 HDI (RHZ, RHS)
• Product Codes: 1351HW
• Other Numbers: NFP

The water hose facilitates the circulation of coolant throughout the engine, which is crucial for maintaining the right operating temperature. Over time, these hoses can deteriorate due to exposure to heat and pressure, leading to leaks or failures. Regular inspection and replacement are recommended to prevent potential engine damage.

Technical Information

• Manufacturer: PSA
• Model: Citroën C8, Peugeot 807
• Product Code: 6466NJ
• Additional Numbers: N/A

When it comes to car maintenance, replacing a worn-out water hose is crucial. Over time, exposure to heat and coolant can cause hoses to degrade, leading to leaks and potential engine overheating. It is advisable to inspect your water hose regularly and replace it every 60,000 miles or as needed to prevent failure.

Replacing the hose is straightforward: start by draining the coolant, then disconnect the old hose from both the engine and the radiator. Install the new water hose by securing it to the designated fittings and refill the coolant to ensure the system is properly functioning.

Technical Information

• Manufacturer: PSA Citroën Peugeot
• Model: Citroën C8, Peugeot 807
• Product Codes: 1351GT
• Additional Numbers: Not applicable