XYK Factory-verified

GMC · Regular Production Option

Tire, front, LT215/85R16D BL R/PE ST TL OOR

Years 1998–01, 2003–08 Models 7 Factory citations 21

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Also described as Tire, front: LT215/85R16D, highway, blackwallTire, front, LT215/85R16/D BL R/PE ST TL HWY

Also documented for Cadillac Chevrolet

Documented applications

Sierra — GMT400 (1988–2000)

1998–2000 Factory-verified

the 1998 list prints XYK twice, once ending HWY (the XYL tire) and once OOR; the 1999–2000 lists print OOR only

GM factory document — 1998 gmc gmc c pickup 2wd rpo code list, p.1.
GM factory document — 1999 gmc gmc c pickup 2wd rpo code list, p.1.
GM factory document — 2000 gmc gmc c pickup 2wd rpo code list, p.1.

Sierra — GMT800 (1999–2007)

1999–2001, 2003–2007 Factory-verified

2005–2007: heavy-duty models only (GM’s HD list)

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.
GM factory document — 2003 gmc gmc c sierra 2wd rpo code list, p.1.
GM factory document — 2007 gmc sierra classic 2wd rpo code list, p.1.

Sierra HD — GMT800 (2001–2007)

2001, 2003–2007 Factory-verified

GM factory document — 2001 gmc gmc c sierra 2wd rpo code list, p.1.
GM factory document — 2003 gmc gmc c sierra 2wd rpo code list, p.1.
GM factory document — 2004 gmc gmc c sierra 2wd rpo code list, p.1.
GM factory document — 2005 gmc gmc c sierra 2wd rpo code list, p.1.
GM factory document — 2006 gmc gmc c sierra 2wd rpo code list, p.1.
GM factory document — 2007 gmc sierra classic 2wd rpo code list, p.1.

Sierra HD — GMT900 (2007–2014)

2007–2008 Factory-verified

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

Suburban — GMT400 (1992–1999)

1998–1999 Factory-verified

the 1998 list also prints XYK as a HWY tire (LT215/85R16D BL R/PE ST TL HWY)

GM factory document — 1998 gmc gmc suburban 2wd rpo code list, p.1.
GM factory document — 1999 gmc gmc suburban 2wd rpo code list, p.1.

Yukon — GMT400 (1992–1999)

1998–1999 Factory-verified

the 1998 list also prints a HWY line; the 1999 list prints OOR only

GM factory document — 1998 gmc yukon 2wd rpo code list, p.1.
GM factory document — 1999 gmc yukon 2wd rpo code list, p.1.

Yukon — GMT800 (2000–2006)

2000–2001 Factory-verified

the 2000 list words it ALS; the 2001 list HWY

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 XYK in the GMC reference. Confidence and citations are shown per application — the same code can be better documented in one year than another.