Chain Timing for Range Rover Sport (2005 – 2009) Lower – 4174166

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This is the lower timing chain for the 4.2 V8 Supercharged and 4.4 AJ V8 petrol engines, responsible for synchronising the crankshaft and camshaft rotation to maintain correct valv e timing. On these engines, the timing chain system comprises multiple chain runs, and the lower chain drives the intermediate sprockets from the crankshaft. Chain stretch or wear on this section causes rattling on startup, misfires, and in severe cases valve-to-piston contact. Key Features Lower timing chain position - distinct from the upper chains connecting camshaft sprockets Designed for the 4.2 V8 Supercharged and 4.4 AJ V8 petrol engine configurations Meets OEM replacement specification for the original Land Rover timing chain assembly When replacing, inspect chain guides, tensioners, and sprockets for wear - these components typically require simultaneous replacement Vehicle Fitment Fits Range Rover Sport 2005–2009 (4.2 V8 Supercharged and 4.4 AJ V8), Discovery 3/LR3 2005–2009 (4.4 AJ V8), and Range Rover 2002–2009 (4.2 V8 Supercharged and 4.4 AJ V8) up to VIN 6A000001. Not sure about fitment? Feel free to get in touch at [email protected] Show more