This is a genuine BMW engine timing chain guide. It works alongside the timing chain and keeps it aligned as it synchronizes the rotation of the crankshaft and camshafts. That synchronization lets the intake and exhaust valves open and close at the correct intervals.
The guide keeps the chain on the correct path around the crankshaft and camshaft sprockets. It helps limit excessive chain movement and vibration during engine operation. It works with the timing chain tensioner to maintain proper chain tension and prevent slack.
A worn or broken guide can cause a rattling or clattering noise, especially at startup or idle. It can also cause engine misfires, stalling or hard starting.
- Part number
- 11317594909
- Supersession
- 11-31-7-594-909
- SKU
- BMW-11317594909
- Quality
- Genuine BMW
- OE number
- 11317594909
- Brand
- BMW