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Thumbnail for 5.0L V8 Petrol Throttle Body Outlet Hose LR045238 / Thermostat Water Pipe LR049989 for Discovery 4 Range Rover RR Sport 2010-13

5.0L V8 Petrol Throttle Body Outlet Hose LR045238 / Thermostat Water Pipe LR049989 for Discovery 4 Range Rover RR Sport 2010-13

5.0L V8 Petrol Throttle Body Outlet Hose LR045238 / Thermostat Water Pipe LR049989 for Discovery 4 Range Rover RR Sport 2010-13

£ 132.18

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Victorious · Discovery 4 / Range Rover Sport · Cooling System

5.0L V8 Petrol Throttle Body & Thermostat Water Pipe Kit – Discovery 4 & Range Rover Sport

OEM-specification cooling system hoses engineered for the 5.0L supercharged V8. Direct replacement, 12-month warranty.

Discovery 4 (2010–2016) Range Rover Sport (2010–2013) Range Rover (2010–2012) 5.0L V8 Petrol Coolant System Dual Part Numbers

Overview

The Discovery 4, Range Rover Sport, and Range Rover with 5.0L V8 petrol engines demand cooling system components that can handle sustained performance. Original throttle body outlet hoses and thermostat water pipes are critical to maintaining optimal coolant flow and engine temperature under load.

This precision cooling kit includes two OEM-specification hoses sourced to Land Rover LR045238 (throttle body heater outlet) and LR049989 (coolant thermostat water pipe) standards. Both components are manufactured to match original equipment specifications, ensuring perfect fitment and thermal performance.

Whether you're replacing failed hoses after high-mileage operation or restoring cooling system integrity as preventive maintenance, this kit delivers the durability and fit your 5.0L engine deserves.

What's Included

🔧

Throttle Body Heater Outlet Hose LR045238 – OEM spec, direct replacement

💧

Coolant Thermostat Water Pipe LR049989 – Integrated thermostat housing connection

✓

12-Month Warranty Full coverage against manufacturing defects

📋

Installation Guide Reference diagrams & torque specifications included

Product Highlights

OEM-Spec Materials: Silicone blend with reinforced braiding, identical to factory originals
5.0L V8 Optimised: Rated for sustained operating pressure and coolant temperatures
Direct Fit: LR045238 & LR049989 – no adaptation required
Throttle Body Outlet: Heater circulation hose with molded connection points
Thermostat Housing: Integrated water pipe for thermal cycling resilience
Anti-Collapse: Reinforced tube structure prevents pinching under load
UV & Ozone Resistant: Extended lifespan in engine bay environment
Pressure Tested: Each hose verified to OEM burst strength standards
12-Month Warranty: Full manufacturer coverage from point of purchase
Ships Worldwide: DHL, FedEx, UPS – express & standard options

Vehicle Compatibility

Vehicle	Engine	Years	Status
Land Rover Discovery 4 (LR4)	5.0L V8 Petrol	2010–2016	Direct Fit
Range Rover Sport	5.0L V8 Petrol	2010–2013	Direct Fit
Range Rover (L405)	5.0L V8 Petrol	2010–2012	Direct Fit
Range Rover (L405)	5.0L V8 Petrol	2013+	Direct Fit
Discovery Sport	Diesel/Petrol	2015+	Not Compatible
Range Rover Velar	Various	2018–2022	Not Compatible

Before purchase: Verify your engine is the 5.0L supercharged V8 petrol unit. TDV6/TDV8 diesel engines use different hose assemblies. Check your VIN or contact our team at +44 203 943 9919 (Mon–Fri 9am–7pm) to confirm compatibility.

Installation Notes

Difficulty Level: Intermediate | Time: 1.5–2.5 Hours

Drain Cooling System: Remove radiator cap and open lower drain plug. Allow full coolant evacuation into a clean container for reuse.
Locate Connection Points: Identify throttle body outlet (driver side, upper engine bay) and thermostat housing (below intake manifold) using your owner's manual diagram.
Remove Old Hoses: Loosen hose clamps with an adjustable wrench. Gently twist and pull each hose free. Wipe connection points clean.
Inspect Fittings: Check all metal connectors for corrosion or damage. Replace any corroded clamps with OEM-spec stainless clamps.
Install New Throttle Body Hose (LR045238): Slide hose over throttle body outlet barb until fully seated. Position hose away from exhaust manifold. Tighten clamp to 18–22 Nm.
Install New Thermostat Pipe (LR049989): Route pipe to thermostat housing connector. Ensure no kinks or sharp bends. Secure with OEM clamps, torque to 18–22 Nm.
Refill Coolant System: Use Land Rover approved coolant (50/50 mix). Top radiator to correct level. Bleed air pockets by running engine at idle for 5 minutes with heater on.
Pressure Test: Allow engine to cool. Check clamps and connections for weeping. Verify thermostat response by feel at upper radiator hose after 10-minute warm-up.

Important: Never remove coolant system components while engine is hot. Allow minimum 30-minute cool-down. Dispose of old coolant responsibly at an approved recycling centre. Do not refill with water alone; use only Land Rover Genuine Coolant or approved equivalent.

Ready to Restore Your V8's Cooling System?

This dual-hose kit ensures your 5.0L petrol engine maintains peak thermal efficiency. OEM-specification materials, 12-month warranty, and worldwide shipping from the UK.

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Use code 22GET20 for 20% off any 2 items.

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📞 +44 203 943 9919 Mon–Fri 9am–7pm

Victorious Automotive is not affiliated with Jaguar Land Rover Limited, Range Rover, Land Rover, Defender, or Discovery. Part numbers LR045238 and LR049989 are Land Rover OEM references; all products are aftermarket replacements meeting or exceeding OEM specifications. Land Rover is a registered trademark of JLR. This product is sold as a functional replacement component for automotive maintenance and repair.

Rest assured our products go through rigourious product checks before they are shipped to our customers

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