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PCH117840LR - Coolant Hose – Expansion Tank Vent by LAND ROVERCooling or Heating Part Land Rover Range Rover Defender, Discovery, Range Rover

PCH117840LR - Coolant Hose – Expansion Tank Vent

- €104,90
€104,90
€104,90 - €104,90
€104,90
Genuine Part
Genuine: Original manufacturer part. This product is the original part designed and produced by the vehicle manufacturer.
Coolant Hose - Expansion Tank Vent is the bleed hose in the engine cooling system, connecting the radiator bleed outlet to the coolant expansion tank.

It forms the vent line of the cooling circuit, allowing trapped air and small volumes of coolant to pass back to the expansion tank. This supports correct filling and bleeding of the system and helps maintain stable coolant circulation.
Vehicle Model Land Rover Defender up to 2016
Land Rover Discovery 1 1989-1998 (L318)
Range Rover Classic up to 1994
Fitment Notes DEFENDER 1983-2006 — expansion tank bleed/vent hose, 2.5L TDi (Non-EEGR)
DISCOVERY 1 1989-1998 — expansion tank bleed/vent hose
RANGE ROVER CLASSIC 1970-1994 — expansion tank bleed/vent hose
Alternative Codes
PCH117840LRPCH117840ESR2348ESR2661ESR3436PDL100000

Available to order 2–3 weeks

Not currently in stock. Order now — typically ships within 2–3 weeks.

Need it faster? Contact us about express import (2–5 business days).

When will my order arrive?

This item is ordered from our supplier on request. Typical lead time is 2–3 weeks from order confirmation.

  • Netherlands / Belgium / Germany: 2–4 working days after dispatch.
  • Other EU countries + UK: 4–8 working days after dispatch.
  • Outside EU/UK: contact us for an estimate.

Need it faster? Express import available in 2–5 business days — contact us before ordering.

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 does the PCH117840LR coolant hose do?
The PCH117840LR is the expansion tank vent hose in the cooling system, connecting the radiator bleed outlet to the coolant expansion tank on the Land Rover Defender, Discovery 1 and Range Rover Classic. It lets trapped air and small volumes of coolant pass back to the tank.
Why does the cooling system need a bleed hose?
The bleed or vent hose supports correct filling and bleeding of the cooling system and helps keep coolant circulation stable on the Defender, Discovery 1 and Range Rover Classic. Trapped air passes back to the expansion tank instead of forming pockets in the engine.
Is this hose sold under other part numbers?
The PCH117840LR expansion tank vent hose is also cross-referenced to ESR3436, PDL100000, ESR2348 and ESR2661. If you've matched any of those numbers, this is the current listing. It fits the Defender (1983-2006) 2.5 TDi, Discovery 1 and Range Rover Classic.

Alternative & Related Options

Same part, different brands or quality grades. Click any option to view full details.

1 option
PCH117840 - Coolant Hose – Expansion Tank Vent
Aftermarket PCH117840 - Coolant Hose – Expansion Tank Vent
Stock 3
€16,90 excl. VAT
View →