MSL Factory-verified

GMC · Regular Production Option

Plant code, Silao, Mexico

Years 1998–99, 2003–09, 2019–20, 2022–25 Models 6 Factory citations 17

Query this via API →

Also described as Plant, Silao, MexicoPlant code: Silao, Mexico

Also documented for Cadillac Chevrolet

Documented applications

Sierra — GMT400 (1988–2000)

1998–1999 Factory-verified internal

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.

Sierra — GMT800 (1999–2007)

1999 Factory-verified internal

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

Sierra — T1XX (2019–2026)

2019–2020, 2022–2025 Factory-verified internal

GM factory document — 2019 gmc 19 sierra 1500 body builder feb 20, p.12.
GM factory document — 2020 gmc 20 sierra 1500 electrical body buil 1, p.13.
GM factory document — 2022 gmc 22 sierra 1500 new electrical body builder sm en us 2022jul20, p.12.
GM factory document — 2023 gmc 23 sierra 1500 electrical body builder sm en us 2022oct12, p.12.
GM factory document — 2024 gmc 24 sierra 1500 sm electrical body builder esid 23dec12, p.14.
GM factory document — 2025 gmc my25 sierra 1500 electrical bbm, p.12.

Suburban — GMT400 (1992–1999)

1998–1999 Factory-verified internal

Silao is an assembly plant Wikipedia names

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 — GMT800 (2000–2006)

2003–2006 Factory-verified internal

GM factory document — 2003 gmc yukon 2wd rpo code list, p.1.
GM factory document — 2004 gmc yukon 2wd rpo code list, p.1.
GM factory document — 2005 gmc yukon 2wd rpo code list, p.1.
GM factory document — 2006 gmc yukon 2wd rpo code list, p.1.

Yukon — GMT900 (2007–2014)

2007–2009 Factory-verified internal

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

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