The ATC-7013 (also referenced as PT-7013) is a premium, shop-grade ring compressor tailored for Cummins M11, L10, and ISM engines. With a 4.92″ (125 mm) bore designation, this compressor allows you to confidently and cleanly insert pistons and rings without damage or binding.
Built in the USA, the ATC-7013 eliminates the guesswork and frustration of ring installation by delivering consistent radial compression and alignment. Its rugged construction withstands the demands of professional rebuild shops and the rigors of field work.
Key Features & Benefits
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Fits 4.92″ bore applications specifically for M11, L10, and ISM engines
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Uniform ring compression protects rings from over-stress or distortion
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Simplifies piston installation by aligning rings concentrically
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Durable, heavy-duty design ideal for shop and field environments
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Direct replacement for the legacy PT-7013 model
Applications & Use Cases
Use the ATC-7013 whenever reinstalling pistons and rings in rebuilds, overhauls, or engine maintenance on Cummins M11, L10, or ISM engines. Whether in a full engine rebuild shop or mobile service setup, this tool contributes to higher first-pass yields and fewer ring failures.