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104123753LR - Tank - Radiator Overflow

- €132,20
€132,20
€132,20 - €132,20
€132,20
Genuine Part
Genuine: Original manufacturer part. This product is the original part designed and produced by the vehicle manufacturer.
Tank - Radiator Overflow
Vehicle Model Land Rover Defender New 2020+
Alternative Codes
104123753LR104123753

Available to order 2–3 weeks

Not currently in stock. Order now — typically ships within 2–3 weeks.

Need it faster? Contact us about express import (2–5 business days).

When will my order arrive?

This item is ordered from our supplier on request. Typical lead time is 2–3 weeks from order confirmation.

  • Netherlands / Belgium / Germany: 2–4 working days after dispatch.
  • Other EU countries + UK: 4–8 working days after dispatch.
  • Outside EU/UK: contact us for an estimate.

Need it faster? Express import available in 2–5 business days — contact us before ordering.

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 radiator overflow tank used for?
The radiator overflow tank, also called the coolant expansion tank, holds excess engine coolant and lets it expand and contract as the engine heats and cools. It fits the Land Rover Defender 2020 onward and keeps the cooling system pressurised and topped up.
Where is the expansion tank located on the Defender?
The coolant expansion tank sits in the engine bay, connected to the radiator and cooling circuit by hoses on the Defender 2020 onward. It usually carries a pressure cap and a minimum and maximum level marking on the side.
Why does a coolant expansion tank fail?
Expansion tanks typically fail from cracks, split seams or a worn pressure cap, which causes coolant loss, low level warnings and overheating. On the Defender 2020 onward, a weeping tank often leaves white coolant residue around the seams.
What are the signs the expansion tank needs replacing?
Signs include visible coolant leaks, a dropping coolant level, overheating and a cracked or brittle tank body. Replacing the tank on the Defender 2020 onward restores correct cooling system pressure and prevents further coolant loss.
How do I confirm this tank fits my Defender?
This tank fits the Land Rover Defender 2020 onward. Use your VIN to confirm the exact engine and cooling variant before ordering, since coolant tanks can differ between petrol, diesel and hybrid versions.