New Genuine Holset H2D Marine Turbocharger

Cummins 6CTA 8.3L | 3538624H

This New Genuine Holset H2D Turbocharger is a direct replacement turbo for Cummins 6CTA 8.3L marine diesel engines.

Holset part number 3538624H is a heavy-duty, fixed-geometry turbocharger designed specifically for marine 6CTA applications. This H2D supports the high-load, continuous-duty operation demanded by marine diesel engines while providing the airflow and boost needed from the Cummins 8.3L platform.

This is a brand-new Genuine Holset turbocharger, not a rebuilt or remanufactured unit. Holset is the original equipment turbocharger manufacturer for this application, making the 3538624H an excellent direct replacement for a worn, damaged, or failed original turbo.

Specifications

• Manufacturer: Holset
• Turbo Model: H2D / H2DM
• Holset Part Number: 3538624H
• Condition: New Genuine Holset
• Engine Manufacturer: Cummins
• Engine: 6CTA / M2
• Engine Displacement: 8.3L
• Fuel Type: Diesel
• Application: Marine
• Turbo Type: Fixed Geometry
• Common Power Rating: 430 HP / 450 HP
• Cummins OE Number: 3802886

Cummins 6CTA Marine Applications

This Holset H2D turbocharger is designed for compatible Cummins 6CTA 8.3L marine engines, including applications rated at:

• 430 HP
• 450 HP

The 6CTA is widely used as a marine propulsion engine, and the H2D turbocharger is designed to handle the sustained load and operating conditions found in marine applications.

Because Cummins used different turbocharger configurations across the 6CTA family, always verify the turbocharger part number before ordering.

Cross Reference / Interchange Numbers

Holset

• 3538624H
• 3538624
• 3538623
• 3545751
• 3545751H

Cummins

• 3802886
• 3802886NX
• 3802886RX

Additional Interchange

• 170-032-0153
• 170-032-1251
• 1700320153
• 1700321251

Genuine Holset Marine Replacement

Marine diesel engines operate under sustained loads that can place significant demands on the turbocharger. Proper airflow, oil supply, cooling, and turbocharger sizing are critical for maintaining reliable engine performance.

The 3538624H H2D was designed for compatible Cummins 6CTA marine engines and provides the correct factory-style fit and turbo configuration for these applications.

Choosing a Genuine Holset replacement helps ensure the proper fit, airflow, and durability expected from the original turbocharger.

Please verify your existing turbocharger part number before ordering. If you're unsure about fitment, contact us with your Cummins engine serial number or existing turbocharger part number and we can help confirm the correct turbo.