Product Description
Interstate-McBee M-5266419 Turbocharger Mounting Gasket – 2013–2018 6.7L Cummins (HE300VG, T4i)
Premium aftermarket turbo-to-exhaust-manifold gasket for 2013–2018 Ram 6.7L Cummins. The Interstate-McBee M-5266419 matches OEM dimensions and materials for a reliable seal on HE300VG applications and other ISB/QSB 6.7 platforms using the T4i flange. Ideal anytime the turbo is removed or replaced.
- Direct replacement: OEM-style fit and function for Cummins 5266419.
- Correct interface: Turbo to exhaust manifold, T4i flange.
- Durable sealing: Built to handle high heat and pressure at the turbo interface.
- Aftermarket value: Interstate-McBee quality at a lower cost than OEM.
Specifications
| Manufacturer | Interstate-McBee |
|---|---|
| Part Number | M-5266419 |
| OEM Cross-Refs | 5266419; also seen with 3977338, 5260648 (application-dependent) |
| Interface | Turbocharger to exhaust manifold |
| Turbo/Flange | HE300VG / T4i flange |
| Reusability | Single-use recommended |
Vehicle Fitment
Verify by engine serial number (ESN) whenever possible.
- Ram 2500/3500/4500/5500, 6.7L Cummins ISB
- Model Years: 2013–2018
- Turbo: Holset HE300VG (factory)
- Other Cummins B-series (ISB/QSB 6.7) using T4i turbo-to-manifold interface (check ESN).
Install Notes
- Replace this gasket anytime the turbo is removed from the manifold.
- Clean both sealing surfaces; ensure alignment of the T4i flange.
- Follow Cummins torque specs and fastener sequence per service manual.
Warranty
Interstate-McBee new parts include manufacturer warranty coverage. Contact us for specific terms on gaskets.
Why Buy From CPP Diesel
- ESN-verified fitment support from real diesel techs
- Fast shipping & easy returns
- Curated Cummins inventory for complete turbo service
FAQ
Will this fit my 2013–2018 Ram 6.7L Cummins?Yes—this gasket matches the OEM Cummins 5266419 used on 2013–2018 Ram 6.7L (HE300VG). Verify by ESN for modified or edge-case builds.
Is the flange style T4i?
Yes. This is the turbo-to-manifold gasket for the T4i flange used with factory HE300VG setups.
Is the gasket reusable?
No. Single-use is recommended—install a new gasket anytime the turbo is removed.
What are the OEM cross-reference numbers?
Primary OEM: 5266419. You may also see 3977338 and 5260648 referenced in related listings.
When should I replace this gasket?
Replace during turbo swaps, manifold service, or any time the joint is disturbed to prevent exhaust leaks and loss of boost response.
Product Videos
Custom Field
YEAR 2013-2018
MAKE DODGE
ENGINE 6.7L
