K12 Factory-verified

Chevrolet · Regular Production Option

Air filter, pollutant

Years 2000–05, 2016–19, 2023–27 Models 11 Factory citations 39

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Also described as Cabin air filter, pollutantAir filter, cabinFilter, cabin airAir filter, particleFilter, air, pollutant

Also documented for Buick Cadillac GMC Oldsmobile Pontiac

Documented applications

Blazer EV (2024–2027)

2025–2027 Factory-verified

only in: Blazer EV, not the Police Package; the 2025 guide reads Air filter, pollutant

GM factory document — 2025 chevrolet blazer ev fleet order guide rpo codes, p.1.
GM factory document — 2026 chevrolet blazer ev fleet order guide rpo codes, p.1.
GM factory document — 2027 chevrolet blazer ev fleet order guide rpo codes, p.1.

Bolt EV — first generation (2017–2023)

2017, 2023 Factory-verified

LT, Premier: S

GM factory document — 2017 chevrolet bolt ev fleet order guide wayback, p.2.
GM factory document — 2023 chevrolet 23 bolt ev body builder sm en us 2022aug26, p.9.
GM factory document — 2023 chevrolet 23 bolt euv body builder sm en us 2022aug29, p.10.
GM factory document — 2023 chevrolet bolt euv fleet order guide wayback, p.1.

Bolt — second generation (2027)

2027 Factory-verified

LT, RS: S

GM factory document — 2027 chevrolet new bolt fleet order guide, p.1.

Equinox EV — Ultium BEV2 (2024–2027)

2025–2027 Factory-verified

GM factory document — 2025 chevrolet new 25my equinox ev fleet order guide rpo codes, p.1.
GM factory document — 2026 chevrolet equinox ev fleet order guide rpo codes, p.1.
GM factory document — 2027 chevrolet equinox ev fleet order guide rpo codes, p.1.
GM factory document — 2025 chevrolet new 25my equinox ev fleet order guide, p.2.
GM factory document — 2026 chevrolet equinox ev fleet order guide, p.1.
GM factory document — 2027 chevrolet equinox ev fleet order guide, p.1.

Equinox — Fourth generation (2025–2027)

2025–2027 Factory-verified

S on all trims

GM factory document — 2025 chevrolet all new equinox fleet order guide, p.2.
GM factory document — 2026 chevrolet equinox fleet order guide, p.2.
GM factory document — 2027 chevrolet equinox fleet order guide, p.2.

Silverado EV — BT1 (2024–2027)

2024–2027 Factory-verified

GM factory document — 2024 chevrolet silverado ev fleet fleet order guide wayback, p.1.
GM factory document — 2027 chevrolet silverado ev fleet order guide rpo codes, p.1.
GM factory document — 2025 chevrolet silverado ev fleet order guide, p.3.
GM factory document — 2026 chevrolet silverado ev fleet order guide, p.4.
GM factory document — 2027 chevrolet silverado ev fleet order guide, p.4.

Spark — M400 (2016–2022)

2017–2019 Factory-verified

all trims: S; 2018 from GM's 2018 order guide

GM factory document — 2017 chevrolet spark order guide copy gm authority, p.1, p.14.
GM factory document — 2018 chevrolet spark order guide copy gm authority, p.2, p.18.
GM factory document — 2019 chevrolet spark order guide copy gm authority, p.2, p.18.

Trailblazer — First generation, VSS-F (2021–2027)

2025–2027 Factory-verified

all trims: S; the Encore GX and Equinox docs word the same code Air filter, pollutant

GM factory document — 2025 chevrolet trailblazer fleet order guide, p.1.
GM factory document — 2026 chevrolet trailblazer fleet order guide, p.1.
GM factory document — 2027 chevrolet trailblazer limited fleet order guide, p.1.

Trax — first US generation (2015–2022)

2016, 2018–2019 Factory-verified

all trims: S

GM factory document — 2016 chevrolet trax fleet order guide wayback, p.2.
GM factory document — 2018 chevrolet trax order guide copy gm authority, p.13.
GM factory document — 2019 chevrolet trax order guide copy gm authority, p.13.

Trax — Second generation, VSS-F (2024–2026)

2025–2026 Factory-verified

all trims: S

GM factory document — 2025 chevrolet trax fleet order guide, p.1.
GM factory document — 2026 chevrolet trax fleet order guide, p.1.

Venture — U-body minivan (1997–2005)

2000–2005 Factory-verified

GM factory document — 2000 chevrolet venture ext rpo code list, p.1.
GM factory document — 2001 chevrolet venture ext rpo code list, p.1.
GM factory document — 2002 chevrolet venture ext rpo code list, p.1.
GM factory document — 2003 chevrolet venture ext rpo code list, p.1.
GM factory document — 2004 chevrolet venture ext rpo code list, p.1.
GM factory document — 2005 chevrolet venture ext rpo code list, p.1.

This page aggregates every documented appearance of K12 in the Chevrolet reference. Confidence and citations are shown per application — the same code can be better documented in one year than another.