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Est. 1957
Mahle

Mahle MS 4.160in+.005in .043in 1.5mm 3.0mm File Fit Rings

$189.56

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Mahle MS file fit piston ring set. 4.160in bore size, 0.043in, 1.5mm, 3.0mm ring sizes. Part# 4165MS-1115. Not CARB approved.

Key Features

  • Fits a 4.160 inch bore with a +.005 inch oversize.
  • Includes a 0.043 inch oil ring, a 1.5mm second ring, and a 3.0mm top ring.
  • File-fit design allows for precise end gap adjustment for custom engine builds.
  • Standard tension rings for reliable sealing.
  • Not CARB approved; cannot ship to California.

⚠️ CA WARNING: This product can expose you to chemicals known to the State of California to cause cancer and/or birth defects or other reproductive harm. Learn more

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About this part

Product Details

These Mahle file-fit piston rings are made for a 4.160 inch bore, with an additional 0.005 inch clearance. The ring sizes are 0.043 inch for the oil ring, 1.5mm for the second ring, and 3.0mm for the top ring. File-fit rings give you the flexibility to precisely set the end gap for your specific engine build, which is crucial for optimal performance and sealing, especially in high-performance or custom applications.

Mahle is a well-known name in engine components, and this set is built to their standards. The file-fit design means you'll need to carefully measure and file the end gaps to match your cylinder bore and piston groove dimensions. This process ensures a tight seal against blow-by and helps maintain consistent compression across all cylinders. Because they are file-fit, they are not a direct bolt-on part and require careful installation by someone familiar with engine rebuilding.

Keep in mind that these rings are not CARB approved and cannot be shipped to California. Always refer to the manufacturer's installation instructions for proper fitting and assembly procedures.

Specifications

Brand
Mahle
Manufacturer Part #
4165MS-1115
UPC
4165MS-1115

Frequently Asked Questions

Mahle MS 4.160in+.005in .043in 1.5mm 3.0mm File Fit Rings

$189.56