Engine, gas, 6 cylinder, 3.9L, sequential fuel injection, V6, offset bore, GM

Years 2006–08 Models 4 Factory citations 10

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Also documented for Buick Pontiac Saturn

Documented applications

Impala — ninth generation (2006–2016)

2006 Factory-verified

The 2006 order guide lists the 3.9L 3900 V6.

GM factory document — 2006 chevrolet impala rpo code list, p.1.
GM Heritage factory kit — 2006 Chevrolet Impala, p.127.

Malibu — Sixth generation, Epsilon (2004–2008)

2006–2007 Factory-verified

the Pontiac G6 doc writes "gasoline" for the same list wording. shared Epsilon code.

GM factory document — 2006 chevrolet malibu rpo code list, p.1.
GM factory document — 2007 chevrolet malibu rpo code list, p.1.
GM Heritage factory kit — 2007 Chevrolet Malibu, p.28.

Monte Carlo — sixth generation (2000–2007)

2006 Factory-verified

Wikipedia: 3.9 L LT, LTZ in 2006. Also in the kit's Monte Carlo order guide.

GM factory document — 2006 chevrolet monte carlo rpo code list, p.1.
GM Heritage factory kit — 2006 Chevrolet Monte Carlo, p.112.

Uplander (2005–2008)

2006–2008 Factory-verified

the 2006 list prints Cyl

GM factory document — 2006 chevrolet uplander rpo code list, p.1.
GM factory document — 2007 chevrolet uplander rpo code list, p.1.
GM factory document — 2008 chevrolet uplander rpo code list, p.1.

This page aggregates every documented appearance of LZ9 in the Chevrolet reference. Confidence and citations are shown per application — the same code can be better documented in one year than another.