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Holset HX55 Explained: Fitment, Specs & What It Replaces

The Holset HX55 (3590044) is a direct-fit, OEM-spec replacement for the Cummins ISM (2007-12 ISM). Built to OEM-spec quality.


Refone aftermarket Holset HX55 3590044 Turbocharger for Cummins ISM 2007-2012 — direct-fit replacement with full installat.

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