ERR4686 | Plastic Filler / Radiator Plug with O-Ring

Plastic filler plug with O-ring for Land Rover applications using ERR4686. This plug is used on selected 300TDI cooling/thermostat housing positions and also fits Discovery 2 differential filler plug points.

  • Fits selected Defender, Discovery 1 and Range Rover Classic 300TDI cooling applications
  • Also used as a Discovery 2 differential filler plug
  • Plastic plug supplied with sealing O-ring
  • Replacement for Land Rover part number ERR4686

£2.59 inc. UK VAT

Normal Stock ItemRegular stock line. Stock may be running low or awaiting replenishment, but is normally available to us quickly.

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Description

ERR4686 plastic filler and radiator plug

This plastic filler plug with O-ring is used on several Land Rover applications under part number ERR4686. It is commonly used on 300TDI thermostat housing/cooling positions, selected radiator plug positions and Discovery 2 differential filler plug points.

Replace this plug if the original is damaged, rounded, brittle, leaking or has been disturbed during cooling system or axle servicing. The O-ring seal is important, so the plug should not be refitted if the sealing face or O-ring has deteriorated.

Fitment varies by vehicle and position. The confirmed data covers Defender 300TDI thermostat housing use, Discovery 1 300TDI thermostat housing use, Range Rover Classic 300TDI thermostat housing use, selected Defender radiator hose/radiator plug use from TA976035, selected Range Rover P38 petrol radiator drain plug use, and Discovery 2 differential filler plug use.

For related cooling parts, see Defender 300TDI engine parts, Discovery 1 300TDI engine parts, Range Rover Classic 300TDI engine parts and Land Rover antifreeze and coolant.

If you need the brass Discovery 2 differential filler plug option, see the Discovery 2 differential brass filler plug.

Additional information
Weight0.09 kg
Dimensions4 × 4 × 3 cm
Fitment

Fitment

Vehicle Engine Category
DEFENDER 1983 -2006
300Tdi Engine Parts
All Cooling and Climate Control
DISCOVERY 1 1989 – 1998
300Tdi Engine Parts
RANGE ROVER 1995 – 2002
All Cooling and Climate Control
RANGE ROVER CLASSIC
300Tdi Engine Parts
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Returns
14-day returns Unopened & unused Faulty? We cover postage
  • Return within 14 days of delivery of your order.
  • Items must be unused, unopened and in original packaging.
  • Faulty items: we’ll cover return postage—keep your receipt.
  • Refunds & Replacements are dealt with once the original item is received and inspected.
Non-returnable: non-stock/order in/special orders and genuine Land Rover parts (unless faulty).

Returns – quick FAQs

How long do I have to return an item?
14 days from receipt of your order.
Who pays return postage?
We cover it if the item is faulty—please keep your postage receipt.
What items are non-returnable?
Non-stock/special orders and genuine Land Rover parts (unless faulty).
How do I start a return?
Contact us

Please include your order number and a brief reason for the return.

Warranty

All parts sold by Twinwoods 4x4 are covered by a minimum 12 month warranty against manufacturing defects.

Some products and brands may carry a longer warranty period where this is provided by the manufacturer. Where applicable, this will normally be stated on the individual product page.

The warranty covers manufacturing defects only and does not cover failure caused by incorrect fitting, misuse, accidental damage, normal wear and tear, or faults elsewhere on the vehicle.

Warranty claims may require the part to be returned for inspection and testing before any repair, replacement or refund is authorised.

This does not affect your statutory rights.

For full details, please see our Terms and Conditions.