Holset HX40 Turbo for Cummins ISC/QSC - 4033651

Remanufactured Holset HX40 Turbocharger – 4033651 for Cummins ISC / QSC / 6CTAA Engines

Built for power, reliability, and long-term value — this independently remanufactured Holset HX40 turbocharger (part number 4033651) is a direct-fit replacement for a wide range of Cummins ISC, QSC, and 6CTAA engines used in commercial trucks, agriculture, marine, and construction applications.

Professionally rebuilt to meet or exceed OEM performance standards, this turbocharger is precision-balanced, flow-tested, and inspected to ensure smooth operation and strong boost response under load. Whether you’re hauling freight, operating a genset, or working in the field, this HX40 delivers the reliability your diesel engine was built for.

✅ Fits Cummins ISC, QSC, and 6CTAA Engines
✅ Independently Remanufactured – NOT Aftermarket or OEM New
✅ HX40 Platform – Proven Durability and Power
✅ Ideal for Commercial, Agricultural, and Industrial Applications
✅ Direct Bolt-On Replacement – No Modifications Needed

Cross Reference Part Numbers Include:
4033651, 4033651H, 4033651HX, 403365100, 403365100H, 3590156, 3591022, 3591049, 3591055, 3591056, 3591058, 3591735, 3594323, 3595387, 3598327, 3800406, 3800406NX, 3800406RX, 3800401NX, 4044175, 4044176, 4044969, 4044970, 4044971, 4955660, 4955660NX, 4955660RX, 170-032-0048, 170-032-0976, 1700320048, 1700320976, TS4044175, TS4044175R

This turbo is trusted by diesel rebuilders and heavy-duty shops who demand long-term value and performance in the field.