K18 Factory-verified

GMC · Regular Production Option

Reactor system, air injection, electric

Years 1999–05, 2007–09 Models 8 Factory citations 23

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Also described as Reactor system, air injection, electronicAir injection reactor (AIR) pump, electric

Also documented for Buick Chevrolet Hummer Oldsmobile

Documented applications

Canyon — GMT355 (2004–2012)

2007–2009 Factory-verified

GM factory document — 2007 gmc canyon pickup 2wd rpo code list, p.1.
GM factory document — 2008 gmc canyon pickup 2wd rpo code list, p.1.
GM factory document — 2009 gmc canyon pickup 2wd rpo code list, p.1.

Envoy — GMT360 (2002–2009)

2004, 2005, 2008, 2009 Factory-verified

GM factory document — 2004 gmc envoy 2wd rpo code list, p.1.
GM factory document — 2005 gmc envoy 2wd rpo code list, p.1.
GM factory document — 2008 gmc envoy 2wd rpo code list, p.1.
GM factory document — 2009 gmc envoy 4wd rpo code list, p.1.

Jimmy — second generation (1995–2001)

1999–2001 Factory-verified

GM factory document — 1999 gmc jimmy 4wd rpo code list, p.1.
GM factory document — 2000 gmc jimmy 4wd rpo code list, p.1.
GM factory document — 2001 gmc jimmy 4wd rpo code list, p.1.

Savana — GMT600 (1996–2002)

2001–2002 Factory-verified

GM factory document — 2001 gmc savana rpo code list, p.1.
GM factory document — 2002 gmc savana rpo code list, p.1.

Sierra — GMT800 (1999–2007)

1999–2001 Factory-verified

GM factory document — 1999 gmc gmc c sierra 2wd rpo code list, p.1.
GM factory document — 2001 gmc gmc c sierra 2wd rpo code list, p.1.

Sierra HD — GMT800 (2001–2007)

2001 Factory-verified

GM factory document — 2001 gmc gmc c sierra 2wd rpo code list, p.1.

Sonoma — second generation (1994–2004)

1999–2004 Factory-verified

GM factory document — 1999 gmc sonoma pickup 4wd rpo code list, p.1.
GM factory document — 2000 gmc sonoma pickup 4wd rpo code list, p.1.
GM factory document — 2001 gmc sonoma pickup 4wd rpo code list, p.1.
GM factory document — 2002 gmc sonoma pickup 4wd rpo code list, p.1.
GM factory document — 2003 gmc sonoma pickup 4wd rpo code list, p.1.
GM factory document — 2004 gmc sonoma pickup 4wd rpo code list, p.1.

Yukon — GMT800 (2000–2006)

2000–2001 Factory-verified

GM factory document — 2000 gmc yukon 2wd rpo code list, p.1.
GM factory document — 2001 gmc yukon 2wd rpo code list, p.1.

This page aggregates every documented appearance of K18 in the GMC reference. Confidence and citations are shown per application — the same code can be better documented in one year than another.