BTR4016 - Coolant Hose – Engine to Heater Valve

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Genuine: Original manufacturer part. This product is the original part designed and produced by the vehicle manufacturer.

Coolant Hose connecting the engine to the heater control valve.

Part of the heater coolant circuit, it carries hot coolant from the engine to the heater valve, which regulates flow through the heater matrix for cabin heating.

Vehicle Model Land Rover Discovery 1 1989-1998 (L318)
Range Rover Classic up to 1994

Fitment Notes DISCOVERY 1 1989-1998 — Engine to heater valve coolant hose. Petrol V8 (EFI, Twin Carb), TDi, 2.0 4-cyl MPi T-Series. From VIN FA393361 to WA799999
RANGE ROVER CLASSIC 1992-1994 — Engine coolant valve hose assembly, Petrol V8. From VIN JA610294

Alternative Codes

10006953BTR4016

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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 engine to heater valve coolant hose do?

The engine to heater valve coolant hose carries hot coolant from the engine to the heater control valve, which regulates flow through the heater matrix for cabin heating. It's part of the heater coolant circuit on the Discovery 1 and Range Rover Classic, under part number BTR4016.

Where does this coolant hose fit on the vehicle?

This coolant hose runs between the engine and the heater control valve within the heater circuit, typically routed across the engine bay toward the bulkhead. On the Discovery 1 it suits Petrol V8, TDi and 2.0 MPi T-Series engines; on the Range Rover Classic, the Petrol V8.

What are the signs this coolant hose needs replacing?

Coolant hoses like this typically fail through perishing, cracking or splitting with age and heat, leading to coolant leaks, low coolant level or overheating. Soft, swollen or weeping hose is a common sign it's due for replacement on the Discovery 1 and Range Rover Classic.

How do I confirm this coolant hose fits my vehicle?

This hose (BTR4016) fits the Discovery 1 from VIN FA393361 to WA799999, and the Range Rover Classic 1992-1994 from VIN JA610294. Check your engine type and VIN against these ranges before ordering, as heater hose routing varies by engine.