CDU3858L - Thermostat O-ring Cooling or Heating Part Land Rover Range Rover Freelander 1

CDU3858L - Thermostat O-Ring – K-Series / KV6

- €0,80

€0,80

€0,80 - €0,80

€0,80

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OEM: Made by an Original Equipment Manufacturer. This part is made by an original equipment manufacturer or under their license, ensuring compatibility and quality.

Thermostat O-Ring - K-Series / KV6 is the sealing O-ring for the thermostat housing on the 1.8L K-Series 4-cylinder and 2.5L KV6 petrol engines.

It seals the joint between the thermostat and its housing in the engine cooling circuit, preventing coolant leakage at the thermostat. Renew whenever the thermostat or housing is disturbed.

Vehicle Model Land Rover Freelander 1 1996-2006 (L314)

Fitment Notes FREELANDER 1 1997-2006 — thermostat housing O-ring/seal. Fits 1.8L K-Series 4-cyl petrol & 2.5L KV6 petrol (auto).

Alternative Codes

CDU3858L

In stock 101 units

78 · Gouda 23 · Drachten

Express delivery available

When will my order arrive?

Order before 15:00 (Mon–Fri): same-day dispatch for in-stock items.
UPS Express (order before 14:00): dispatched today, delivered tomorrow where available.
Netherlands / Belgium / Germany: 2–4 working days.
Other EU countries + UK: 4–8 working days.
Outside EU/UK: delivery times vary — contact us for an estimate.

Items may ship from multiple warehouses at no extra cost.

Job kits containing this part

This part is included in 0 job kit(s) below. Pick the kit that matches your vehicle and job, then add what you need.

Frequently asked questions

What is the CDU3858L thermostat O-ring for?

The CDU3858L is the OEM sealing O-ring for the thermostat housing on the Land Rover Freelander 1 1997-2006. It seals the joint between the thermostat and its housing in the cooling circuit, preventing coolant leaking at the thermostat.

Which engines does the CDU3858L fit?

The CDU3858L fits the Freelander 1 1997-2006 with the 1.8L K-Series 4-cylinder petrol and the 2.5L KV6 petrol (automatic) engines. It's the thermostat housing seal for both, so it suits either engine when the thermostat or housing is worked on.

Should the O-ring be replaced when changing the thermostat?

Replace the CDU3858L O-ring whenever the thermostat or its housing is disturbed. The rubber takes a compression set once fitted, so a reused seal often weeps coolant at the joint. Renewing it during a thermostat job avoids a repeat strip-down to cure a leak.