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Rad Plug - Engine Cooling for Defender (1986 – 2006) Plastic - Radiator - Tdi Only (Up to TA976035) – ERR4686B
Rad Plug - Engine Cooling for Defender (1986 – 2006) Plastic - Radiator - Tdi Only (Up to TA976035) – ERR4686B

Rad Plug - Engine Cooling for Defender (1986 – 2006) Plastic - Radiator - Tdi Only (Up to TA976035) – ERR4686B

SKU : ERR4686B

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Suitable for:
💡 Still unsure this fits your vehicle? Ask our parts team with your VIN.

Regular price £4.42 Save £-4.42


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Ex. VAT: £3.68

Tags : Engine

Rad Plug - Engine Cooling for Defender (1986 – 2006) Plastic - Radiator - Tdi Only (Up to TA976035) – ERR4686B

£4.42

Rad Plug - Engine Cooling for Defender (1986 – 2006) Plastic - Radiator - Tdi Only (Up to TA976035) – ERR4686B

Product Description

The ERR4686B is a radiator drain plug designed for plastic radiators fitted to Land Rover Defender models equipped with the Tdi engine, up to chassis number TA976035. It seals the drain port at the base of the radiator, preventing coolant loss during normal operation. A failed or cross-threaded drain plug can result in persistent coolant leaks, leading to overheating and potential engine damage if left unaddressed.

Key Features

  • Designed specifically for plastic-tank radiators fitted to Tdi-engined Defenders up to chassis TA976035
  • Direct OEM-specification replacement - ensures correct thread engagement and sealing on the plastic radiator body
  • Should be inspected whenever the cooling system is drained; plastic threads on the radiator are susceptible to damage from overtightening
  • Replace the sealing washer or O-ring alongside this plug if signs of coolant weeping are present around the drain port

Vehicle Fitment

Fits Defender (1986–2006) with Tdi engine and plastic radiator up to chassis TA976035, and also applies to 300Tdi variants of the Defender, Discovery 1 (1989–1998), and Range Rover Classic.

Not sure about fitment? Feel free to get in touch at [email protected]

Product Fitments

Vehicle Marque Engine Category Notes Break From Break To
DEFENDER 1986 - 2006LAND ROVERAllCooling and Climate Control, Engine PartsPlastic - Radiator - Tdi OnlyTA976035
RANGE ROVER 1995 - 2002LAND ROVERAllCooling and Climate Control, Engine PartsDrain Plug - Petrol Engines
DEFENDER 1986 - 2006LAND ROVER300TdiCooling and Climate Control, Engine PartsPlastic - Thermostat Housing
DISCOVERY 1 1989 - 1998LAND ROVER300TdiCooling and Climate Control, Engine PartsPlastic - Thermostat Housing
RANGE ROVER CLASSICLAND ROVER300TdiCooling and Climate Control, Engine PartsPlastic - Thermostat Housing

Shipping & Returns

UK Mainland Delivery

We aim to dispatch all UK Mainland orders on the same or next working day. Delivery typically takes 1–2 working days, depending on the time your order is placed.

For special order items, dispatch is typically within 3–5 working days. These items are clearly marked within the product description.

Delivery Charges & Minimum Order

Product prices are displayed according to the customer’s location. UK customers will generally see prices inclusive of VAT, while customers outside the UK will generally see prices without UK VAT.

We do not have a minimum order value; however, our minimum delivery charge includes packaging and handling costs and cannot be reduced.

Tracked Courier Options

UK Mainland delivery varies, but is typically £10-15.00 + VAT. Some items may qualify for free delivery where margin allows.

Economy Regions include Highlands & Islands of Scotland, Scilly Isles, Isle of Wight, and Northern Ireland.

Please add items to your basket and proceed to checkout for a delivery quote based on your order.

Channel Islands (Jersey, Guernsey, Isle of Man) are treated as separate countries and are zero-rated for VAT.

Courier Partners

We use DPD, DHL, TNT/FedEx, UPS, Royal Mail and Transglobal Express for UK, European and International deliveries.

International Orders

International orders are typically shipped via DHL, UPS of FedEx. For some destinations, we may require a manual quote before enabling checkout.

  • Import duties, VAT, and customs charges are not included in your order total.
  • Couriers may apply additional fees such as brokerage, disbursement, or handling charges.
  • You may be required to provide additional information (tax number, ID, EORI, etc.) to complete customs clearance.
  • Customs clearance times vary by country and may cause delays outside our control.

We cannot provide delivery prices inclusive of duties or taxes. The customer is responsible for all import-related charges.

Estimate Your Import Charges

You can estimate import duties and taxes for your country using the calculator below:

Estimate Import Charges (External Tool)

As a general guide, many EU customers pay approximately 20–25% of the order value in total import charges (including VAT, duty, and courier fees). Actual charges vary by country.

Examples:

  • 🇫🇷 France: A £200 order may incur approximately £40–£50 in VAT, duty, and courier fees.
  • 🇪🇸 Spain: A £200 order may incur approximately £45–£60, including IVA (21%) and courier handling charges.
  • 🇬🇷 Greece: A £200 order may incur approximately £50–£70, sometimes including additional courier clearance or deposit fees.
  • 🇦🇪 United Arab Emirates: A £200 order may incur approximately £15–£30 in import VAT and handling fees, though shipping costs are typically higher.
  • 🇺🇸 United States: Many orders under $800 may not incur import duty, but courier fees may still apply depending on the shipment.

These examples are provided as a general guide only. Final charges are determined by your local customs authority and courier.

European Deliveries

Economy and Express delivery options are available for many European destinations, with pricing dependent on parcel size, weight, destination, and courier surcharges.

For an accurate quote, please contact us with your full delivery address and contact number.

Customs & Import Duties

Customs duties, VAT, and handling fees may be applied by authorities in your country. These charges are outside our control.

Some couriers may charge additional fees to handle customs clearance on your behalf.

We will not under-declare or alter invoice values for customs purposes. This is unlawful and may invalidate your shipment and any associated insurance.

Important Information

Delivery times are estimates only and may be affected by courier delays, customs processing, or external factors outside our control.

Once dispatched, the shipment is in the hands of the courier. All deliveries are tracked and may require a signature.

Please ensure someone is available to receive the delivery and monitor tracking updates.

If a shipment is refused, not collected, or cannot be delivered due to unpaid customs charges or lack of response, return shipping, customs charges, and courier fees may be deducted from any refund as these costs are non-recoverable.

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