Mahle MS 4.035in+.005in .043in .043in 3.0mm File Fit Rings

Mahle is well-known for making solid engine components, and this file fit piston ring set is no exception. If you're rebuilding an engine and need rings that offer a precise fit, these are a great option. They come in a 3.0mm, .043"/.043" configuration, which is a common size for many applications, and they are designed to be file-fit, meaning you can adjust the end gap for a perfect seal in your specific cylinder bore.

These rings are a low tension design, which can help reduce friction and improve oil control. The +.005" sizing indicates they are slightly larger than standard, allowing for a bit of adjustment during the file-fitting process to achieve the optimal gap. This attention to detail in sizing and fitment is what Mahle is known for, helping to ensure your engine runs smoothly and efficiently after the rebuild.

Because these are file-fit rings, they are intended for builders who are comfortable with custom engine work and have the proper tools to measure and file the ring ends to the correct specification for their application. Please note that these rings are not CARB approved and cannot be shipped to California.