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594622 - Adaptor by Land RoverCooling or Heating Part Land Rover Range Rover Defender, Series

594622 - Adaptor

- €11,20
€11,20
€11,20 - €11,20
€11,20
Genuine Part
Genuine: Original manufacturer part. This product is the original part designed and produced by the vehicle manufacturer.
Heater Tap Adaptor for the heater control circuit. This zinc-plated mild steel adaptor forms the threaded interface between the heater water valve and the heater feed.

Used with heater valve 90577299.
Vehicle Model Land Rover Defender up to 2016
Land Rover Series 2 and 3
Fitment Notes Fitment data limited — derived from web research, verify if uncertain
SERIES 2/3 — Heater control / heater tap adaptor. 4-cyl petrol & diesel. Used with heater valve 90577299. Zinc-plated mild steel.
DEFENDER 1983-2006 — Heater control / heater tap adaptor.
Alternative Codes
594622

In stock 5 units
5 · Gouda 0 · 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 heater tap adaptor for?
The heater tap adaptor is the threaded interface between the heater control valve and the heater feed pipe on the Land Rover Series 2/3 and Defender. It forms part of the heater water circuit that routes coolant to the heater matrix.
What does the adaptor work with?
The adaptor works with the cable-controlled heater control valve (part 90577299), threading between the valve and the heater feed. It's typically replaced when the old adaptor corrodes or the thread is damaged during heater valve renewal on the 4-cylinder petrol and diesel models.
Should the adaptor be reused when changing the heater valve?
The adaptor is a zinc-plated mild steel fitting in the engine-bay heater circuit. It's typically replaced if seized, corroded or leaking rather than reused when the heater valve is changed, since a damaged thread won't seal reliably against coolant.

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