NU4 ✓ Factory-verified

Oldsmobile · Regular Production Option

Emission system, California, LEV2 plus

Years 2003–04 Models 3 Factory citations 4

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Also documented for BuickCadillacChevroletGMCHummerPontiacSaturn

Documented applications

Alero — N-body (1999–2004) →

• 2003–2004 ✓ Factory-verified internal
  ⛭ GM factory document — 2003 oldsmobile alero rpo code list, p.1.

  ⛭ GM factory document — 2004 oldsmobile alero rpo code list, p.1.

Bravada — GMT360 (2002–2004) →

• 2004 ✓ Factory-verified internal
  ⛭ GM factory document — 2004 oldsmobile bravada rpo code list, p.1.

Silhouette — U-body second generation (1997–2004) →

• 2004 ✓ Factory-verified internal
  ⛭ GM factory document — 2004 oldsmobile silhouette ext rpo code list, p.1.

This page aggregates every documented appearance of NU4 in the Oldsmobile reference. Confidence and citations are shown per application — the same code can be better documented in one year than another.