E9X M3 Rod Bearing Set

Product Details

Rod bearings should be replaced as a preventative measure before 80,000 miles. This is the set of rod bearings for the S65 V8 in the E90/E92 M3 (BMW part numbers 11247841703 and 11247841702). This is just the set of bearings and does not include any of the other items that need to be replaced at the same time (connecting rod bolts, oil pan gasket, hardware, etc). Click here for our complete rod bearing overhaul kit.

Rod bearings continue to be a sore subject among M3, M5, and M6 owners. The rod bearings in the S65 V8 have been known to fail within 60,000 miles. There could be a number of reasons for premature failure with a lot of finger-pointing as to the real cause. Whatever the reason, rod bearings are wearing out sooner than expected and their replacement should be considered a required preventative maintenance item. We suggest a replacement interval of between 60,000-80,000 miles with frequent engine oil analysis done along the way*. Driving moderately and allowing the engine to warm up before hard use will also extend rod bearing life.

* BMW released an updated rod bearing around 2011 that uses different materials than the original design. The old rod bearings were constructed with several layers or metal, including copper and lead. If an engine oil analysis revealed high levels of these specific metals then it was a sure sign that the rod bearings were nearing replacement. However, the new BMW bearings do not use copper or lead so an oil analysis will not alert you to heavy bearing wear. The new bearings are also a harder material which prolonged the life of the bearing but increased the liklihood of crankshaft damage if a bearing failed. Even though the bearing theoretically lasts longer it's even more important to preventativly replace them before they damage the crankshaft.

This set fits the following BMWs:
2008-2011 E90 BMW M3 - Sedan
2008-2013 E92 BMW M3 - Coupe
2008-2013 E93 BMW M3 - Convertible

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