Product Description
Interstate-McBee M-3802290 – H1C Turbocharger for 3.9L 4BT Cummins (Aftermarket Replacement)
Direct-fit, OE-style H1C replacement turbocharger for Cummins 3.9L 4BT applications where part number M-3802290 (Cummins 3802290 cross) is specified. Built for dependable spool, factory-like drivability, and long service life in light- and medium-duty use.
- OE-style fit & function: Designed to match the geometry and mounting of the original H1C unit.
- Reliable construction: Balanced rotating assembly and durable journal-bearing center section.
- Service-ready: Compatible with stock oil feed/return and charge-air plumbing in specified applications.
- Value: Interstate-McBee quality at an aftermarket price point.
Specifications
| Brand | Interstate-McBee |
| Part Number | M-3802290 |
| Turbo Model | H1C (OE-style replacement) |
| Engine | Cummins 3.9L 4BT (verify by ESN) |
| Center Section | Journal bearing |
| Included | Turbocharger assembly (see “What’s Included”) |
What’s Included
- (1) H1C turbocharger assembly, P/N M-3802290
Not Included
- Gaskets/seals, oil feed & return lines, studs/nuts, and downpipe clamp unless otherwise noted on your order.
Vehicle/Engine Fitment
Always confirm by engine serial number (ESN) and build configuration.
- Cummins 3.9L 4BT applications where Cummins 3802290 is specified.
- May not fit engines originally equipped with different turbine housing A/R, flange pattern, or wastegate configuration.
Recommended/Related Parts
- Turbo install gasket/seal kit
- Oil feed line & return line (inspect/replace if worn)
- Exhaust/downpipe V-band or clamp (as required)
- Air filter and charge-air hoses if aged or oil-soaked
Install Notes
- Prime the turbo: Add clean engine oil into the oil inlet and hand-spin the compressor before first start.
- Replace/flush oil feed & return lines; check for restrictions and coking.
- Use new gaskets/seals; torque fasteners to spec. Verify zero intake/exhaust leaks.
- After start, idle 3–5 minutes and check for oil/coolant/boost leaks.
Warranty/Returns
New, unused items only. Damage from oil starvation, contamination, overspeed, or foreign object ingestion is not covered. Keep installation documentation for any claims.
Why Buy From CPP Diesel
- ESN-verified fitment help from diesel specialists
- Fast shipping, easy returns, competitive pricing
- Deep inventory of complementary 4BT/6BT components
FAQ
Is this a direct bolt-on?
For 3.9L 4BT engines originally using an H1C matched to Cummins 3802290, yes. Always verify by ESN and compare flange/clamp styles before ordering.
Do I need a tune?
No tune required for stock-equivalent replacement. If other performance parts are installed, calibrations may be beneficial.
Are gaskets and lines included?
No. Please add a turbo install kit and inspect/replace oil feed & return lines.
