The M20162 Counterbore Shim Cutter Plate is a precision tool plate designed for use in heavy-duty engine block Shim Cutting, specifically tailored for the Cummins C 8.3, C 8.9, ISL and ISC engine families. This plate corresponds to OEM tool number 3823567 and the PT-2210-5A designation.
Utilizing this cutter plate as part of a counterbore system enables machinists and rebuilders to accurately machine the liner ledge or counterbore surface to OEM specifications, paving the way for proper shim installation and liner protrusion control. The M20162 is intended for use with the compatible cutter drive tool M50134 to create a consistent, flat surface ahead of liner or shim installation.
Its construction is engineered for durable performance in demanding machine-shop environments where precision and repeatability are critical. The tool supports efficient and effective reconditioning of blocks that have experienced wear, damage, or previous improper machining — offering rebuild shops a reliable solution to restore engine block integrity.
Key Features & Benefits
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Specifically engineered for Cummins C 8.3 / C 8.9 / ISL / ISC engines.
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OEM compatibility: replaces number 3823567 and PT-2210-5A cutter plate.
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Works seamlessly with the counterbore tool kit M50134 to machine liner seat surfaces and prepare for shim installation.
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Helps restore correct liner protrusion height and block deck alignment—critical for sealing, performance, and longevity.
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Durable build suited to frequent usage in heavy-duty rebuild or remanufacturing applications.
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Supports cost-effective block restoration by enabling reuse rather than replacement when liner ledge surfaces are compromised.
