LR049990 / LR048474 Thermostat Housing and Water Bypass Hose Repair Kit for Land Rover
This complete cooling system repair kit is designed for Land Rover 5.0L V8 and 3.0L V6 applications. It addresses two common cooling system failure points by combining the thermostat housing gasket and seals referenced by OEM LR049990 with the water bypass hose referenced by OEM LR048474.
This product is a thermostat housing and water bypass hose repair kit. It is not presented as a complete thermostat housing assembly alone or as an individual bypass hose only.
OEM / Reference Numbers
- LR049990 — OEM reference for the thermostat housing gasket and seals included in the kit
- LR048474 — OEM reference for the water bypass hose included in the kit
Part Type
- Thermostat housing and water bypass hose repair kit
- Cooling system repair kit
- Includes thermostat housing gasket and seals
- Includes water bypass hose
Kit Contents
- Thermostat housing gasket and seals — OEM LR049990
- Water bypass hose — OEM LR048474
What This Kit Does
The thermostat housing and water bypass hose are identified on the product page as common cooling system failure points on modern Land Rover 5.0L V8 and 3.0L V6 engines. Coolant leakage from these areas can lead to overheating. This kit addresses both locations with the listed sealing components and bypass hose.
Compatible Vehicles
- Land Rover Range Rover L405 — 5.0L V8 and 3.0L V6 applications
- Land Rover Range Rover Sport L494 — 5.0L V8 and 3.0L V6 applications
- Land Rover Discovery 4 / LR4 — 5.0L V8 and 3.0L V6 applications
- Land Rover Discovery 5 — 5.0L V8 and 3.0L V6 applications
Engine / Technical Details
- Engine displacement: 5.0L or 3.0L
- Engine configuration: V8 or V6
- Engine types listed: supercharged and naturally aspirated
- Thermostat housing gasket and seals reference: LR049990
- Water bypass hose reference: LR048474
Common Symptoms and Risks
- Coolant leaks from thermostat housing or water bypass hose areas
- Risk of engine overheating caused by coolant loss
Why Choose This Repair Kit
- Addresses both thermostat housing sealing and water bypass hose failure points in one repair kit
- Includes the LR049990 thermostat housing gasket and seals
- Includes the LR048474 water bypass hose
- Designed for the listed Land Rover 5.0L V8 and 3.0L V6 applications
Important Before Ordering
- Verify that your application requires thermostat housing gasket and seals referenced by LR049990 and a water bypass hose referenced by LR048474.
- Confirm your Land Rover model, chassis and engine configuration against the listed compatibility information.
- This product is a repair kit containing thermostat housing sealing components and a water bypass hose.
- The product page does not specify exact model years or engine codes.
What does OEM LR049990 fit?
According to the product listing, LR049990 references the thermostat housing gasket and seals included in this repair kit for listed Range Rover L405, Range Rover Sport L494, Discovery 4 / LR4 and Discovery 5 applications with 5.0L V8 or 3.0L V6 engines.
What is OEM LR048474 in this repair kit?
LR048474 is the OEM reference for the water bypass hose included in this thermostat housing and bypass hose repair kit.
What is included in the LR049990 / LR048474 repair kit?
The product page lists thermostat housing gasket and seals referenced by LR049990 and a water bypass hose referenced by LR048474.
Which Land Rover models are compatible with this repair kit?
The product listing specifies Range Rover L405, Range Rover Sport L494, Discovery 4 / LR4 and Discovery 5 applications with 5.0L V8 or 3.0L V6 engines.
What problems can a failed thermostat housing or bypass hose cause?
The product page identifies coolant leaks from the thermostat housing and water bypass hose as common failure points that can lead to engine overheating.
How do I confirm compatibility before ordering?
Verify that your application requires the LR049990 thermostat housing gasket and seals together with the LR048474 water bypass hose, then confirm your Land Rover chassis and 5.0L V8 or 3.0L V6 engine application against the listed compatibility information.
Read All
Orders ship within 1–2 business days.
Standard delivery:
- USA: Some items ship from our US warehouse and arrive within 3 business days.
- USA-EU: 10–21 business days
- Worldwide: 14–30 business days
Shipping cost is shown at checkout.
Can I exchange or return an item?
Yes, you can exchange or return an item within 14 days of purchase. This right is guaranteed to you by the Law on the Protection of Consumer Rights
To use this feature, please make sure that:
- the product was not in use and has no traces of use: scratches, chips, abrasions, etc.
- the goods are fully completed and the integrity of the packaging is not violated
- retained all labels and factory markings