Transfer case, electric shift control, 2 speed, aluminum

Years 2009, 2014–15, 2018–19, 2025–27 Models 4 Factory citations 13

Also described as Transfer case, electronic shift, rotary dial controlsTransfer case, two speed, electronic shift with push button controls

Also documented for Chevrolet

Documented applications

Sierra — GMT900 (2007–2013)

2009 Factory-verified

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

Sierra HD — GMT900 (2007–2014)

2009, 2014 Factory-verified

the 2014 guides describe rotary dial control; only in: 4WD

GM factory document — 2009 gmc sierra 2wd rpo code list, p.1.
GM factory document — 2014 gmc sierra 2500hd fleet order guide wayback, p.4.
GM factory document — 2014 gmc sierra 3500hd fleet order guide wayback, p.4.

Sierra HD — K2XX (2015–2019)

2015, 2018–2019 Factory-verified

requires 4WD; 2015 marks: Sierra: not offered; SLE, SLT: included in the trim group; 2018: GM's 2018 Sierra 2500HD order guide; 2019: GM's 2019 Sierra 3500HD order guide

GM factory document — 2015 gmc sierra 2500hd fleet order guide wayback, p.4.
GM factory document — 2018 gmc sierra 2500hd order guide copy gm authority, p.8.
GM factory document — 2019 gmc sierra 3500hd order guide copy gm authority, p.8.

Sierra HD — T1XX (2020–2027)

2025–2027 Factory-verified

Pro, SLE: included in the trim group, upgradeable; SLT, AT4, AT4X, Denali, Denali Ultimate: not offered

GM factory document — 2025 gmc sierra 2500 hd retail and fleet fleet order guide rpo codes, p.1.
GM factory document — 2026 gmc sierra 2500 hd retail and fleet fleet order guide rpo codes, p.1.
GM factory document — 2027 gmc sierra 2500 hd retail and fleet fleet order guide rpo codes, p.1.
GM factory document — 2025 gmc sierra 2500 hd retail and fleet fleet order guide, p.20.
GM factory document — 2026 gmc sierra 2500 hd retail and fleet fleet order guide, p.19.
GM factory document — 2027 gmc sierra 2500 hd retail and fleet fleet order guide, p.20.

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