NF4 ✓ Factory-verified

Cadillac · Regular Production Option

Emission system, clean fuel fleet

Years 2002–06 Models 4 Factory citations 6

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Also documented for BuickChevroletGMCHummerOldsmobilePontiacSaturn

Documented applications

DTS — G-body (2006–2011) →

• 2006 ✓ Factory-verified internal
  ⛭ GM factory document — 2006 cadillac dts rpo code list, p.1.

Escalade EXT — GMT800 (2002–2006) →

• 2002–2006 ✓ Factory-verified internal
  ⛭ GM factory document — 2002 cadillac escalade ext rpo code list, p.1.

  ⛭ GM factory document — 2006 cadillac escalade ext rpo code list, p.1.

Escalade — GMT800 (2002–2006) →

• 2002–2006 ✓ Factory-verified internal
  ⛭ GM factory document — 2002 cadillac escalade 2wd rpo code list, p.1.

  ⛭ GM factory document — 2006 cadillac escalade rpo code list, p.1.

STS — Sigma (2005–2011) →

• 2006 ✓ Factory-verified internal
  ⛭ GM factory document — 2006 cadillac sts rpo code list, p.1.

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