Range Rover L405 Intake Manifold 4.4 SDV8 Diesel AH4Q-6K770-DE is an original air intake system component designed for the 4.4 SDV8 diesel engine in the Range Rover L405 model. The manifold belongs to the intake manifolds category and ensures proper air delivery to the cylinders, which translates to stable engine operation and correct interaction with the turbocharging system.
Specifications and technical data
- SKU: LR048505
- Mark: Range Rover
- Condition: Used
- OEM Part Number: LR048505
- Substitutable numbers: LR048505, AH4Q-6K770-DE, AH4Q6K770DE, AH4Q-6K770-DF, AH4Q6K770DF
- Fuel type: Diesel
- Part type: Intake Manifold
- Category: Intake Manifolds
Intake Manifold Purpose and Function
The presented intake manifold is dedicated to the 4.4 SDV8 diesel engine in the Range Rover L405 and is a key element of the intake system. Its task is to evenly distribute air to all cylinders, which directly impacts the smoothness of operation, performance, and fuel consumption. A correctly selected intake manifold also supports the operation of turbochargers and the engine control system, maintaining stable pressure and airflow across a wide range of loads.
Construction and Fit for the 4.4 SDV8 Diesel Engine
The manifold is part of the OEM components used as standard in Land Rover diesel engines, meaning precise fit to the 4.4 SDV8 engine heads and compatibility with factory sensors and accessories. The manifold's design is optimized for airflow in a high-displacement diesel engine, considering high boost pressures and exhaust emission requirements.
Properly designed intake runners help maintain stable cylinder filling, which is particularly important in V8 engines with advanced injection and boost control. This allows the manifold to support both smooth acceleration and relaxed driving at low RPMs.
Benefits of Using an Original Intake Manifold
Using an original intake manifold in the Range Rover L405 with the 4.4 SDV8 Diesel engine allows you to maintain the parameters intended by the vehicle manufacturer. The most important benefits include:
- Factory fit for the 4.4 SDV8 unit – no modifications required, compatibility with the engine's intake system and accessories.
- Stable airflow – supports the correct combustion process in the diesel engine, contributing to maintaining power and torque.
- Compatibility with the control system – ensures correct sensor readings and proper operation of control maps.
- Reduced risk of leaks – a correctly selected intake manifold reduces the risk of boost pressure drops and engine running problems.
Condition, Verification, and Practical Application
This component comes from the intake manifolds category and is offered as a used part, allowing for economical repair or replacement of a damaged manifold in the Range Rover L405 diesel engine. This type of solution is particularly beneficial for advanced V8 units, where the cost of new components is high, and original used parts retain full structural functionality.
Before installation, a standard check of sealing, mating surfaces, and the condition of ports and mountings is recommended to ensure trouble-free operation of the intake system after installation. A correctly selected and functional intake manifold helps avoid problems with uneven engine running, power loss, or error codes stored in the ECU.
Related Land Rover Intake Manifolds and Technical Materials
If you are looking for other Land Rover intake manifolds for various models of this brand, check out our dedicated category: Land Rover intake manifolds. There you will find a wide selection of intake components tailored to specific engine units.
For those interested in the broader context of intake and exhaust system operation in diesel-powered vehicles, we also recommend the guide article: Performance Exhaust System: Used Sport Manifolds and Catalytic Converters on the Road. This provides practical supplementary knowledge about exhaust and air flow in modern engine units.
