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Reseal the injection pressure regulator on your 2004-2014 IC Corporation CE/FE/RE bus or International DT466 / MaxxForce DT chassis with the Alliant Power IPR Valve Seal Kit. A leaking IPR bleeds off injection control pressure and causes hard starts and low power; this kit replaces Navistar 1878479C1 / 1889027C91 seals to restore it.
Alliant Power validates, tests, and kits the components in an ISO 9001:2015 certified facility using OE-sourced or OE-spec parts, so the injector goes back in with fresh seals instead of reused ones, backed by Alliant Power technical support.
OEM P/N REFERENCE: Navistar 1878479C1, 1889027C91
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