Cummins 855 NH250 NTC400 Cylinder Head | 3008101 | Early Loaded | New

New aftermarket loaded cylinder head for the Cummins 855 (14.0L) NH250 / NTC400 — the early-model configuration. Casting 3008101 ships fully loaded with valves and springs. Fitment is configuration-specific (injector hold-down, valve spring, and exhaust port differ between early and later 855 heads) — verify your engine and the specs below before ordering.

Key Features:

• New aftermarket loaded cylinder head for the Cummins 855 (14.0L) NH250 / NTC400
• Early-model configuration: 5/16" injector hold-down bolt, small (1.25" OD) valve spring, large exhaust port, standard valve protrusion
• Fully loaded with valves, springs, retainers, and valve locks
• High-strength, alloyed cast iron designed for heavy-duty diesel applications
• New — ready to install

Specifications:

• Base casting number: 3008101
• Component type: Loaded cylinder head (early model)
• Condition: New Aftermarket
• Material: high-strength, alloyed cast iron
• Engine: Cummins 855 (14.0L), NH250 / NTC400
• Configuration: 5/16" injector hold-down, 1.25" OD valve spring, large exhaust port, standard valve protrusion

Compatibility / Fitment:

• Cummins 855 (14.0L) NH250 / NTC400 — Big Cam / NH/NT series
• Early-model gate: this head uses the 5/16" injector hold-down bolt, small (1.25" OD) valve spring, and large exhaust port. Later 855 heads differ — verify your engine's configuration before ordering
• Cam-in-block engine — head does not carry cam bearings
• Verify your engine serial number/CPL before ordering
• Common cross-references: 3008100, 3041993, 3652600

Conclusion:

The 3008101 is a new aftermarket, fully loaded Cummins 855 (NH250 / NTC400) cylinder head in the early-model configuration — 5/16" injector hold-down, small valve spring, large exhaust port. It ships ready to install with valves and springs. Verify your engine's configuration and serial number before ordering.