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Mahle file-fit piston rings sized 4.280 inch plus 0.005 inch come as a 1.0, 1.0, and 2.0 mm set for applications that require final fitting. The file-fit construction means ring end gaps and clearances must be trimmed and checked to match cylinder bores, a common choice when exact bore dimensions need custom ring sizing. These rings support accurate rebuilding where a drop-in option is not suitable and precise sealing is required.
Mahle MS 4.280in+.005in 1.0mm 1.0mm 2.0mm File Fit Rings
