YF1 Factory-verified

Chevrolet · Regular Production Option

Radio, electronically tuned AM/FM stereo, extended range sound system

Years 1971–72, 1983–85, 2003–10, 2014–18, 2022–27 Models 3 Factory citations 24

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Also described as Rally packageSales package, cutaway upfitter

Also documented for GMC

Documented applications

Nova / Chevy II

1971–1972 Factory-verified

GM Heritage factory kit — 1972 Chevrolet Nova, p.15.

Camaro — Gen 3 (1982–1992)

1983–1985 Factory-verified

GM Heritage factory kit — 1983 Chevrolet Camaro, p.35.
GM Heritage factory kit — 1984 Chevrolet Camaro, p.5.
GM Heritage factory kit — 1985 Chevrolet Camaro, p.22.

Express — GMT610 (2003–2027)

2003–2010, 2014–2018, 2022–2027 Factory-verified

the 2025–2027 Cutaway guides read RV Package; O: Cutaway 1WT, Cutaway 2WT CG33803 (2025–2026); not offered: Cutaway 2WT CG33903 (2025–2026)

GM factory document — 2003 chevrolet express rpo code list, p.1.
GM factory document — 2004 chevrolet express awd rpo code list, p.1.
GM factory document — 2005 chevrolet express awd rpo code list, p.1.
GM factory document — 2006 chevrolet express awd 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 express cutaway fleet order guide, p.14.
GM factory document — 2026 chevrolet my26 express savana electrical bbm, p.13.
GM factory document — 2026 chevrolet express cutaway fleet order guide, p.15.
GM factory document — 2027 chevrolet express cutaway fleet order guide, p.8.

This page aggregates every documented appearance of YF1 in the Chevrolet reference. Confidence and citations are shown per application — the same code can be better documented in one year than another.