Product Overview:
This is an H1C turbocharger, engineered to OEM specifications for Cummins’ 4BT/4BTA/6BT 3.9L–5.9L diesel engines used primarily in marine propulsion and generator applications. As a water-cooled design, it restores factory boost pressure and combustion efficiency for engines suffering from power loss, excessive smoke, unusual noise, or a fully failed unit — helping keep marine engines and gensets running reliably in demanding operating environments.
Key Features:
- OEM-Matched Fitment: Manufactured to match the mounting configuration and flange dimensions of the original 3802870 turbocharger for a direct bolt-on replacement.
- Genuine H1C Platform: A well-established, water-cooled turbo design widely used across Cummins’ 4BT/4BTA/6BT marine and industrial diesel engines, known for reliable performance under sustained marine duty cycles.
- Water-Cooled Bearing Housing: Provides superior thermal management versus air-cooled designs — important for marine applications where engines often run at sustained high loads.
- Durable, Corrosion-Resistant Construction: Built to withstand the demanding heat, pressure, and marine-environment conditions typical of boat and generator engines.
- Improved Throttle Response & Reduced Noise: A properly functioning turbo improves throttle response and decreases engine noise compared to a worn unit.
- Restores Lost Power & Efficiency: Addresses common failure symptoms — reduced power, smoke, unusual noise, and increased fuel consumption.
- Warranty: Typically 1-year manufacturer warranty (confirm specific terms with your supplier; some suppliers offer a 30-60 day return/exchange policy as well).
Before You Buy:
Please confirm the part number stamped on your original turbocharger (3802870 / 3538723, etc.) against your engine’s exact model and serial number, since Cummins 4BT/4BTA/6BT marine and industrial applications can vary by production batch. Let us know your engine model and serial number if you’d like help confirming exact compatibility before ordering.
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