INTERSTATE MCBEE
INTERSTATE-MCBEE M-3755843 T4 TURBO INLET GASKET 89-24 5.9L/6.7L CUMMINS (AFTERMARKET REPLACEMENT)
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- SKU:
- MCBM-3755843
- MPN:
- M-3755843
- Shipping:
- Calculated at Checkout
Description
Interstate-McBee M-3755843 T4 Turbo Inlet Gasket – 5.9L/6.7L Cummins (Aftermarket)
High-quality T4 turbo inlet (turbine flange) gasket built to OEM-style specs for a reliable, leak-free seal between your exhaust manifold and T4 turbocharger. Ideal for T4 upgrades or service on Cummins B-Series builds and common heavy-duty Cummins platforms (6C/ISC/ISL, L10/M11/ISM).
- OEM-style fit: Direct cross to Cummins 3755843 for the T4 undivided inlet pattern.
- Durable sealing: Built for high temp/pressure at the turbine inlet to help prevent exhaust leaks.
- Versatile use: Works on T4-equipped 5.9L/6.7L Cummins conversions and on 6C/ISC/ISL, L10/M11/ISM applications.
- Aftermarket value: Interstate-McBee quality at a fraction of OEM box pricing.
Specifications
| Interstate-McBee Part | M-3755843 |
|---|---|
| OEM Cross-Reference | Cummins 3755843 |
| Additional Cross-Refs | 3016246; distributor refs may include FP-3755843 / MCBM-3755843 |
| Flange Pattern | T4, undivided turbo inlet (turbo to exhaust manifold) |
| Position | Turbine inlet / turbo to manifold |
| Contents | (1) T4 turbo inlet gasket |
Vehicle & Engine Fitment
Verify by flange type (T4) and engine serial number (ESN) when possible.
- Dodge/Ram Cummins (B-Series)
- 1989–2007 5.9L Cummins – when using a T4 manifold/turbo
- 2007.5–2024 6.7L Cummins – when using a T4 manifold/turbo
- Medium/Heavy-Duty Cummins
- 6C / ISC / ISL (various vocational applications)
- L10 / M11 / ISM (select applications using T4 inlet flange)
Install Notes
- Confirm your turbo/manifold are T4. (Stock 5.9L setups are often T3.)
- Clean both sealing faces thoroughly; check flatness and hardware condition.
- Follow the Cummins service manual for torque sequence and specs.
Warranty
Interstate-McBee new engine parts generally carry up to 24 months of coverage from installation. For exact terms on this gasket, contact us or review the current Interstate-McBee policy.
Why Buy From CPP Diesel
- Diesel-specific tech support and ESN fitment assistance.
- Fast shipping and hassle-free returns.
- One-stop shop for related hardware: studs, nuts, manifolds, and install kits.
FAQ
Is this the correct gasket for my stock 5.9L turbo?If your turbo/manifold are T3 (common on stock 5.9L), use a T3 gasket. This part is for the T4 inlet pattern. Check your flange before ordering.
Will this fit 6.7L Cummins?
Yes—if you are running a T4 manifold/turbo. Factory 6.7L setups may differ; verify your flange type.
Which Cummins engine families use 3755843?
Commonly found across 6C/ISC/ISL and select L10/M11/ISM applications, and on T4-converted B-Series builds.
What’s included in the box?
One (1) T4 turbo inlet gasket. Hardware is not included.
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