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Defender parts. Ships from Western Australia.
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Overflow Tank
In Stock
Cooling SystemOBX-HT-001

Overflow Tank200TDi · 300TDi · V8

Aluminium header tank. Direct replacement for the original plastic unit.

Fabricated aluminium header tank (expansion reservoir) for Land Rover Defender, Discovery 1, and Range Rover Classic with 200TDi, 300TDi, or V8 engines. Replaces the original plastic item which is prone to splitting along the seam from heat cycling. Uses the original mounts and hose connections.

  • Fits Defender, Discovery 1, and Range Rover Classic: 200TDi, 300TDi, and V8
  • Direct replacement for the original plastic header tank
  • Uses original mounts and hose connections, no modifications needed
  • Fabricated aluminium, won't split with age like the plastic original
  • Cap not included. Use your original Land Rover pressure relief cap
$120.00AUD

Cap not included. This tank requires a specific pressure relief cap. Use your original Land Rover cap, or source a compatible replacement before fitting.

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Ships from Western AustraliaAU · UK · US · NZ · CA
Direct bolt-on fitment
The Problem

The Original Tank Splits

Land Rover fitted a plastic header tank to the 200TDi, 300TDi, and V8 engines. With age, these tanks split along the seam from heat cycling. It's a known failure point on vehicles of this age. When it goes, coolant leaks and you're left with a problem that could have been sorted cheaply beforehand.

The Upgrade

Aluminium Doesn't Split

This tank is fabricated from aluminium and won't develop the seam splits that the original plastic unit does over time. It uses the same mounting points and hose connections as the original so there's nothing complicated about fitting it. If your original tank has already split, or you want to replace it before it does, this is the straightforward fix.

Specifications

Part No.
OBX-HT-001
Material
Fabricated aluminium
Finish
Natural aluminium
Fitment
Direct OEM replacement
Mounts
Uses original mounting points
Connections
Original hose connections
Cap
Not included. Use original Land Rover cap

Fitment

  • Land Rover Defender 90, 110, 130: 200TDi, 300TDi, V8
  • Land Rover Discovery 1: 200TDi, 300TDi, V8
  • Range Rover Classic: 200TDi, 300TDi, V8

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