Product Description
The Cummins 5339363 OEM Turbocharger Flange Gasket is the factory-engineered gasket used to seal the turbocharger mounting interface on 2019–2024 6.7L ISB Cummins engines. Built to maintain proper exhaust flow, prevent boost leaks, and withstand extreme turbine temperatures, this genuine Cummins gasket ensures a long-lasting, leak-free seal between the turbocharger and exhaust manifold or turbine housing connection.
Modern 6.7L Cummins systems rely on precise sealing to maintain turbo efficiency, emissions performance, and throttle response. Replacing the turbo flange gasket with new, OEM Cummins components like the 5339363 gasket is critical anytime the turbo is serviced, replaced, or removed for exhaust work.
Fitment
- 2019–2024 Dodge Ram 2500/3500 with 6.7L ISB Cummins
- 2019–2024 Ram 4500/5500 with 6.7L ISB Cummins
- 6.7L ISB engines using OEM HE300/HE351-series architecture
Note: Turbo gasket usage varies by turbo model (HE300VG / HE351VE / HE400 series). Always verify by ESN or OEM turbo part number.
Cross-Reference (Cummins-Only)
Other Cummins sealing and hardware components often replaced during turbo service:
• Cummins 3915787 OEM Threaded Plug
• Cummins 3900625 OEM Hex Flange Head Cap Screw
• Cummins 3900267 OEM Tappet Cover Bolt Grommet Seal
FAQ
What does the Cummins 5339363 turbo flange gasket seal?
This gasket seals the turbocharger mounting flange to maintain correct exhaust pressure and prevent leaks that reduce spool and performance.
Should this gasket be replaced when removing the turbo?
Yes. Cummins recommends replacing turbo gaskets any time the turbo is removed to ensure proper sealing and prevent exhaust leakage.
Is this gasket compatible with variable-geometry turbos?
Yes — when used on OEM HE300VG/HE351VE turbo platforms equipped on 2019–2024 ISB engines. Confirm by ESN or turbo P/N.
Can an aftermarket gasket be used instead?
Aftermarket gaskets often lack the multi-layer OEM heat resistance. A genuine Cummins gasket ensures correct sealing and durability.
Specifications for cummins 5339363
| Specification | Value |
|---|---|
| Brand | Cummins Genuine Parts |
| Part Number | 5339363 |
| Component Type | Turbocharger Flange Gasket |
| UPC | Not Published |
| GTIN | Not Published |
| Cross Reference | Used on ISB 6.7L turbo mounting assemblies (HE300VG/HE351VE) |
| E-Codes | N/A |
| Shipping Weight | 0.10 lbs |
| Package Dimensions | 6 x 4 x 1 in |
| Prop 65 Warning | Not Applicable |
