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LR045239 & LR049990 throttle body heater hose and thermostat tube kit for Land Rover supercharged engines
Throttle Heater & Thermostat Tube Kit – LR045239 LR049990

Throttle Heater & Thermostat Tube Kit – LR045239 LR049990

This coolant hose and connector kit (LR045239 + LR049990) includes both key components that regulate coolant flow between the thermostat, throttle body heater, and engine block on supercharged Land Rover petrol engines.

The LR045239 Throttle Body Heater Outlet Hose manages coolant circulation through the throttle body to prevent icing and maintain consistent intake air temperature. The LR049990 Thermostat Water Outlet Tube Connector links the thermostat housing to the engine block, ensuring reliable coolant delivery and preventing leaks that can cause overheating.

Both parts are precision-engineered for durability and proper fitment on 3.0L V6 and 5.0L V8 Supercharged petrol engines. This kit replaces aging, brittle factory connectors and hoses that are prone to cracking under heat and pressure, restoring OEM-level cooling performance and dependability.

Kit Includes:

  • LR045239 Throttle Body Heater Outlet Hose

  • LR049990 Thermostat Water Outlet Tube Connector

  • Mounting Clamps

Compatible Models:

  • LR4 / Discovery 4 (L319) – V6 3.0 L Supercharged | 2014–2016

  • Discovery 5 (L462) – 3.0 L Supercharged | 2017–onwards

  • Range Rover (L405) – V6 3.0 L & V8 5.0 L Supercharged | 2013–2022

  • Range Rover Sport (L494) – V6 3.0 L & V8 5.0 L Supercharged | 2014–2022

Ideal for preventative maintenance or coolant system refreshes. Replacing both the heater hose and outlet connector together ensures leak-free cooling and consistent temperature regulation in demanding supercharged applications.

Supersessions LR048474, C2Z28258 (for LR049990)

FREE SHIPPING TO THE LOWER 48!

[FAQ]
Q: Does this kit fit both V6 and V8 supercharged engines?
A: Yes, it fits all 3.0 L V6 and 5.0 L V8 Supercharged petrol engines used in Discovery 4, Discovery 5, Range Rover (L405), and Range Rover Sport (L494) from 2013 onward.

Q: What’s included in the kit?
A: The kit includes the throttle body heater outlet hose (LR045239), thermostat outlet tube connector (LR049990), and required clamps.

Q: Why replace both parts together?
A: These two components age and degrade at similar rates. Replacing both during a coolant service ensures long-term reliability and prevents future leaks.