LR121799 | Timing Chain Tensioner - Engine Timing System, Timing Drive
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To check the stock of Genuine Parts before placing an order please use our Contact Us page
Land Rover Part Number: LR121799 - Timing Chain Tensioner
LR121799 is a Timing Chain Tensioner. Fitted within the engine timing drive, it applies tension to the timing chain to remove slack and help maintain accurate timing between the crankshaft and camshaft sprockets. The spring-loaded unit commonly incorporates hydraulic damping that uses engine oil pressure to moderate force during transient conditions. It works directly with the timing chain guide rail and sprockets to limit chain vibration and wear and to reduce the risk of a skipped tooth; inspect the tensioner and associated guides where timing chain noise or irregular valve timing is present. Use the compatibility data below to confirm fitment against your V.I.N.
Compatibility
Frequently Asked Questions
The LR121799 tensioner maintains correct timing chain tension between the crankshaft and camshaft sprockets to keep valve timing accurate across engine speeds and temperatures. It is a spring-loaded component that commonly uses engine oil pressure for hydraulic damping to smooth transient loads. Typical symptoms of a worn or faulty tensioner include timing chain noise and irregular valve timing, in which case the tensioner and guide rails should be inspected.
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