YF2 Factory-verified

Chevrolet · Regular Production Option

Sales package, ambulance upfitter

Years 1998–01, 2003–10, 2014–18, 2022–27 Models 10 Factory citations 48

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Also described as Ambulance upfitter packageEmergency Service PackageAmbulance package

Also documented for Cadillac GMC

Documented applications

C/K pickup — GMT400 (1988–2000)

1998–2000 Factory-verified

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

Express — GMT600 (1996–2002)

1998–2000 Factory-verified

GM factory document — 1998 chevrolet express rpo code list, p.1.
GM factory document — 1999 chevrolet express rpo code list, p.1.
GM factory document — 2000 chevrolet express rpo code list, p.1.

Express — GMT610 (2003–2027)

2006–2010, 2014–2018, 2022–2027 Factory-verified

the 2025–2027 guides read Ambulance Package, incomplete vehicle; O: Cargo CG33705, Cutaway 1WT (2027), Cutaway CG33503 (2025–2026), Cutaway 1WT and 2WT CG33803 (2025–2026); not offered: Cargo CG23405, Cargo CG23705, Cargo CG33405, Cutaway 1WT and 2WT CG33903 (2025–2026); in the 2025–2027 guides only in the Cargo and Cutaway guides

GM factory document — 2006 chevrolet express rpo code list, p.1.
GM factory document — 2007 chevrolet express awd rpo code list, p.1.
GM factory document — 2008 chevrolet express rpo code list, p.1.
GM factory document — 2009 chevrolet express rpo code list, p.1.
GM factory document — 2010 chevrolet gh van elec 1 7 d1 100813, p.17.
GM factory document — 2014 chevrolet gh van elec bbm si brief, p.8.
GM factory document — 2015 chevrolet express savana electrical body builders manual service manual 2015 en us, p.19.
GM factory document — 2016 chevrolet express savana electrical body builders manual service manual 2016 en us, p.13.
GM factory document — 2017 chevrolet express savana electrical body builders manual service manual 2017 en us, p.11.
GM factory document — 2018 chevrolet 18 express savana bodybuilders sm 2017nov06, p.17.
GM factory document — 2022 chevrolet 22 express savana electrical body builder sm en us 2021oct12, p.15.
GM factory document — 2023 chevrolet 23 express savana body builder sm en us 2022sep13, p.16.
GM factory document — 2024 chevrolet 24 express savana body builder manual 18553161 2023oct26, p.15.
GM factory document — 2025 chevrolet my25 express savana electrical bbm, p.13.
GM factory document — 2025 chevrolet express cargo fleet order guide, p.10.
GM factory document — 2025 chevrolet express cutaway fleet order guide, p.13.
GM factory document — 2026 chevrolet my26 express savana electrical bbm, p.13.
GM factory document — 2026 chevrolet express cargo fleet order guide, p.11.
GM factory document — 2026 chevrolet express cutaway fleet order guide, p.14.
GM factory document — 2027 chevrolet express cargo fleet order guide, p.10.
GM factory document — 2027 chevrolet express cutaway fleet order guide, p.7.

Silverado — GMT800 (1999–2007)

1999–2001, 2003–2007 Factory-verified

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

GM factory document — 1999 chevrolet chevy c silverado 2wd rpo code list, p.1.
GM factory document — 2003 chevrolet chevy c silverado 2wd rpo code list, p.1.
GM factory document — 2007 chevrolet silverado classic 2wd rpo code list, p.1.
GM Heritage factory kit — 2003 Chevrolet Silverado 1500, p.49.
GM Heritage factory kit — 2007 Chevrolet Silverado, p.62.

Silverado — GMT900 (2007–2013)

2009 Factory-verified

GM factory document — 2009 chevrolet silverado 2wd rpo code list, p.1.

Silverado HD — GMT800 (2001–2007)

2001, 2003–2007 Factory-verified

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

Silverado HD — GMT900 (2007–2014)

2007–2009 Factory-verified

GM factory document — 2007 chevrolet silverado 2wd rpo code list, p.1.
GM factory document — 2008 chevrolet silverado 2wd rpo code list, p.1.
GM factory document — 2009 chevrolet silverado 2wd rpo code list, p.1.

Silverado Medium Duty (GM515, 2019–2026)

2025–2026 Factory-verified

GM factory document — 2025 chevrolet silverado 4500 hd 5500 hd and 6500 hd fleet order guide rpo codes, p.1.
GM factory document — 2026 chevrolet silverado 4500 hd 5500 hd and 6500 hd fleet order guide rpo codes, p.1.

Suburban — GMT400 (1992–1999)

1998–1999 Factory-verified

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

Suburban — GMT800 (2000–2006)

2000–2001 Factory-verified

the 2001 list words it as the ambulance upfitter sales package

GM factory document — 2000 chevrolet chevy suburban 2wd rpo code list, p.1.
GM factory document — 2001 chevrolet chevy suburban 2wd rpo code list, p.1.

This page aggregates every documented appearance of YF2 in the Chevrolet reference. Confidence and citations are shown per application — the same code can be better documented in one year than another.