H1C Turbocharger 3538723 3802870 for Cummins 4BT / 6BT Marine Engines
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Compatible Models
We do our best to list all compatible models. Although this may be the part you need, your exact model may not appear below.
- Cummins 4BT marine diesel (matching H1C installation)
- Cummins 6BT / 5.9L marine diesel (matching H1C installation)
Important fitment note: Compare the original turbo ID plate, housings, flange orientation and oil connections; 4BT and 6BT installations vary. Applications must be checked against the original part number and equipment serial-number catalog; engine or option changes can affect fitment.
Product Overview
The turbo uses exhaust energy to compress intake air. Worn bearings, damaged wheels or a leaking turbo housing may lead to oil consumption, smoke or reduced boost. Inspect intake restrictions and charge-air leaks before replacing a turbo that appears weak.
Key Features & Performance
- H1C-style turbocharger assembly
- Reference numbers 3538723 and 3802870
OE / Reference Numbers
- 3538723
- 3802870
Common Reasons for Replacement
Shaft wear, oil leakage or low boost after proper diagnosis. Confirm the fault before ordering; other components can cause similar symptoms.
Frequently Asked Questions
Is this a genuine OEM part? This listing is for a replacement part unless otherwise explicitly stated. Manufacturer names and part numbers identify compatible applications only.
How do I confirm fitment? Compare the original turbo ID plate, housings, flange orientation and oil connections; 4BT and 6BT installations vary.
Part Summary
keywords: h1c-style turbocharger assembly, cummins replacement h1c turbocharger 3538723 3802870, 3538723, 3802870
Brand names, model numbers, and reference part numbers are used for identification and compatibility purposes only. Verify the original component, dimensions, and application before purchase.