Heater, engine block

Years 1975, 1989–92, 1998–09 Models 21 Factory citations 57

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Also described as Engine block heater

Also documented for Buick Cadillac Chevrolet GMC Hummer Oldsmobile Saturn

Documented applications

Firebird / Trans Am

1975 Single-source

6000 — A-body (1982–1991)

1989 Single-source

the 1989 order guide lists it as an optional heater; shared A-body code; cited from the Chevrolet Celebrity kits; no 6000 source names it, so the row rests on the kit pages alone

GM Heritage factory kit — 1989 Chevrolet Celebrity, p.10.

Aztek — U-body (2001–2005)

2001–2005 Factory-verified

GM factory document — 2001 pontiac aztek awd rpo code list, p.1.
GM factory document — 2002 pontiac aztek awd rpo code list, p.1.
GM factory document — 2003 pontiac aztek awd rpo code list, p.1.
GM factory document — 2004 pontiac aztek awd rpo code list, p.1.
GM factory document — 2005 pontiac aztek awd rpo code list, p.1.

Bonneville — Tenth generation (2000–2005)

2000–2005 Factory-verified

The Canadian process option's includes list prints KO5 (letter O) for this code.

GM factory document — 2000 pontiac bonneville rpo code list, p.1.
GM factory document — 2005 pontiac bonneville rpo code list, p.1.

Bonneville — H-body, 9th gen (1992–1999)

1998–1999 Factory-verified

Bonneville Club agrees.

GM factory document — 1998 pontiac bonneville rpo code list, p.1.
GM factory document — 1999 pontiac bonneville rpo code list, p.1.

Firebird — Third generation (1982–1992)

1989–1992 Factory-verified

the cited 1991 Camaro page prints Ko5 (lower-case o); the zero form is the code; Firebird years: 3rdgenformula option pages 1989–1992; shared F-body code; cited from the Camaro kits

GM Heritage factory kit — 1989 Chevrolet Camaro, p.35.
GM Heritage factory kit — 1990 Chevrolet Camaro, p.37.
GM Heritage factory kit — 1991 Chevrolet Camaro, p.27.
GM Heritage factory kit — 1992 Chevrolet Camaro, p.91.

Firebird — Fourth generation (1993–2002)

1998–2002 Factory-verified

GM factory document — 1998 pontiac firebird rpo code list, p.1.
GM factory document — 2002 pontiac firebird rpo code list, p.1.

G3 — Daewoo Kalos (T250) / Aveo5 twin (2009)

2009 Factory-verified

GM factory document — 2009 pontiac g3 rpo code list, p.1.

Pontiac G5 — Delta (2007–2009)

2007–2009 Factory-verified

shared Delta platform code; Chevrolet Cobalt kit.

GM factory document — 2007 pontiac g5 rpo code list, p.1.
GM factory document — 2009 pontiac g5 rpo code list, p.1.
GM Heritage factory kit — 2007 Chevrolet Cobalt, p.154.

G6 — Epsilon / GMX381 (2005–2010)

2005–2009 Factory-verified

the 2005 and 2006 lists print KO5 (letter O); the 2007 to 2009 lists print K05; shared Epsilon code; Chevrolet Malibu kit.

GM factory document — 2005 pontiac g6 rpo code list, p.1.
GM factory document — 2006 pontiac g6 rpo code list, p.1.
GM factory document — 2007 pontiac g6 rpo code list, p.1.
GM factory document — 2008 pontiac g6 rpo code list, p.1.
GM factory document — 2009 pontiac g6 rpo code list, p.1.
GM Heritage factory kit — 2006 Chevrolet Malibu, p.131.
GM Heritage factory kit — 2007 Chevrolet Malibu, p.133.

G8 — Zeta (2008–2009)

2009 Factory-verified

GM factory document — 2009 pontiac g8 rpo code list, p.1.

Grand Am — N-body (1992–1998)

1998 Factory-verified

the list prints a second line, Heater, Eng Blk; shared N-body code; Chevrolet Malibu kit (1997 p.14, 1998 p.6)

GM factory document — 1998 pontiac grand am rpo code list, p.1.
GM Heritage factory kit — 1997 Chevrolet Malibu, p.14.
GM Heritage factory kit — 1998 Chevrolet Malibu, p.6.

Grand Am — Fifth generation (1999–2005)

1999–2005 Factory-verified

The 1999 and 2000 lists word it "Heater, Eng Blk".

GM factory document — 1999 pontiac grand am rpo code list, p.1.
GM factory document — 2001 pontiac grand am rpo code list, p.1.
GM factory document — 2005 pontiac grand am rpo code list, p.1.

Grand Prix — W-body, 7th gen (1997–2003)

1998–2003 Factory-verified

GM factory document — 1998 pontiac grand prix rpo code list, p.1.
GM factory document — 2003 pontiac grand prix rpo code list, p.1.

Grand Prix — Eighth generation (2004–2008)

2004–2008 Factory-verified

GM factory document — 2004 pontiac grand prix rpo code list, p.1.
GM factory document — 2008 pontiac grand prix rpo code list, p.1.
GM factory document — 2005 pontiac grand prix rpo code list, p.1.

Montana — U-body second generation (1997–2005)

1998–2005 Factory-verified

GM factory document — 1998 pontiac trans sport ext rpo code list, p.1.
GM factory document — 1999 pontiac montana ext rpo code list, p.1.
GM factory document — 2000 pontiac montana ext rpo code list, p.1.
GM factory document — 2001 pontiac montana ext rpo code list, p.1.
GM factory document — 2002 pontiac montana ext rpo code list, p.1.
GM factory document — 2003 pontiac montana ext rpo code list, p.1.
GM factory document — 2004 pontiac montana ext rpo code list, p.1.
GM factory document — 2005 pontiac montana 4wd rpo code list, p.1.

Montana SV6 — Second generation, U-body (2005–2006)

2005–2006 Factory-verified

GM factory document — 2005 pontiac montana sv6 rpo code list, p.1.
GM factory document — 2006 pontiac montana sv6 rpo code list, p.1.

Sunfire — J-body (1995–2005)

1998–2005 Factory-verified

The 1999–2005 lists print KO5; K05 in the 1998 list and in GM's other lists.

GM factory document — 1998 pontiac sunfire rpo code list, p.1.
GM factory document — 1999 pontiac sunfire rpo code list, p.1.
GM factory document — 2005 pontiac sunfire rpo code list, p.1.

Torrent — Theta / GMT192 (2006–2009)

2006–2009 Factory-verified

GM factory document — 2006 pontiac torrent rpo code list, p.1.
GM factory document — 2009 pontiac torrent rpo code list, p.1.

Vibe — First generation (2003–2008)

2003–2008 Factory-verified

GM factory document — 2003 pontiac vibe awd rpo code list, p.1.
GM factory document — 2008 pontiac vibe fwd rpo code list, p.1.

Vibe — Second generation (2009–2010)

2009 Factory-verified

GM factory document — 2009 pontiac vibe fwd rpo code list, p.1.

This page aggregates every documented appearance of K05 in the Pontiac reference. Confidence and citations are shown per application — the same code can be better documented in one year than another.