ERR4531 | 300TDI Heater Coolant Pipe – Defender / Discovery 1 / Range Rover Classic
Metal heater coolant pipe for 300TDI Land Rover engines, replacing Land Rover part number ERR4531. This pipe sits above the engine between the inlet manifold and rocker cover, forming part of the heater and coolant hose routing.
- Fits 300TDI Defender, Discovery 1 and Range Rover Classic models
- Metal heater coolant pipe / heater-to-hose pipe
- Replaces Land Rover part number ERR4531
- Positioned above the engine between the inlet manifold and rocker cover
£34.01 inc. UK VAT
Normally stocked — stock may be low or awaiting replenishment
Family-run Land Rover parts specialist supplying Genuine, OEM & trusted aftermarket parts.
Free mainland UK shipping £99+ · Express options available
Worldwide Tracked Delivery Available
Description
300TDI heater coolant pipe replacement
This metal heater coolant pipe fits 300TDI Defender, Discovery 1 and Range Rover Classic models using Land Rover part number ERR4531. It sits above the engine between the inlet manifold and rocker cover, connecting into the heater and engine coolant hose routing.
Replace this pipe if the original is corroded, damaged, leaking, heavily pitted or showing coolant staining around the hose connections. Because it sits high on the engine, leaks here can often leave dried coolant marks around the pipe, hoses or top of the engine.
Compare the pipe layout with your original before ordering, especially on Defender 300TDI models where some catalogues show early and later heater pipe arrangements. If you are working through the cooling system, you may also find related parts in our Defender cooling parts, Discovery 1 cooling parts and Range Rover Classic cooling parts sections.
Additional information
| Weight | 0.4 kg |
|---|---|
| Dimensions | 50 × 15 × 15 cm |
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Delivery
Twinwoods 4x4 ships Land Rover parts across the UK and around the world. We regularly send parts overseas and use trusted tracked courier services so UK and international customers can order with confidence.
Standard UK shipments are normally sent with DPD. UK orders containing oils or fluids are normally sent with DHL where required, because some carriers restrict liquid shipments.
Worldwide delivery is available through DPD and DHL Express, depending on the destination, parcel size, weight and available courier services. Add the parts you need to your basket, enter your delivery address, and the checkout will show the available delivery options and prices before payment.
Free mainland UK postage and packaging is available on eligible orders over £99, subject to our delivery terms and conditions.
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
Buy with confidence: all new parts sold by Twinwoods 4x4 include at least 12 months manufacturer warranty against defects in materials and workmanship under normal use.
Some products and brands may include a longer warranty period where this is provided by the manufacturer. Where applicable, this will normally be stated on the individual product page or covered by the manufacturer’s own warranty terms.
Warranty cover applies to manufacturing defects. It does not cover misuse, incorrect fitting, competition use unless stated, contamination, modification, damage during installation, normal wear and tear, or failure caused by an unrelated vehicle fault. For certain components, proof of professional fitment may be required.
Warranty claims may require the part to be returned for inspection and/or supplier testing before the claim is accepted. Any advance replacement is discretionary.
Warranty remedies relate to the part itself, meaning repair or replacement, or refund if those are not possible. Warranty does not cover labour, removal or refitting, diagnostics, consumables, travel or other incidental costs.
This warranty is in addition to your legal rights and does not reduce those rights.
For full details, please see our Terms and Conditions.
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