NF4 ✓ Factory-verified

Hummer · Regular Production Option

Emission system, clean fuel fleet

Years 2006–09 Models 1 Factory citations 2

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Also documented for BuickCadillacChevroletGMCOldsmobilePontiacSaturn

Documented applications

H3 and H3T — GMT345 (2006–2010) →

• 2006–2009 ✓ Factory-verified internal
  ⛭ GM factory document — 2006 hummer h3 rpo code list, p.1.

  ⛭ GM factory document — 2009 hummer h3 rpo code list, p.1.

This page aggregates every documented appearance of NF4 in the Hummer reference. Confidence and citations are shown per application — the same code can be better documented in one year than another.