Skid plate, transfer case, AEV

Years 2023–27 Models 4 Factory citations 13

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Also described as Skid plate, transfer caseTransfer case skid plate, AEV

Also documented for GMC

Documented applications

Colorado — Third generation (2023–2027)

2024–2027 Factory-verified

ZR2: O; WT, LT, Trail Boss, Z71: not offered

GM factory document — 2024 chevrolet 24colorado electrical body builder manual 18272478 2023oct09, p.13.
GM factory document — 2025 chevrolet colorado fleet order guide, p.51.
GM factory document — 2026 chevrolet colorado fleet order guide, p.58.
GM factory document — 2027 chevrolet colorado fleet order guide, p.56.

Silverado 1500 — Fifth generation (2027)

2027 Factory-verified

GM factory document — 2027 chevrolet next generation silverado 1500 retail and fleet fleet order guide rpo codes, p.1.
GM factory document — 2027 chevrolet next generation silverado 1500 retail and fleet fleet order guide, p.129.

Silverado HD (T1XX, 2020–2027)

2025–2027 Factory-verified

only in: 2500 HD

GM factory document — 2025 chevrolet silverado 2500 hd retail and fleet fleet order guide rpo codes, p.1.
GM factory document — 2026 chevrolet silverado 2500 hd retail and fleet fleet order guide rpo codes, p.1.
GM factory document — 2027 chevrolet silverado 2500 hd retail and fleet fleet order guide rpo codes, p.1.

Silverado — T1XX (2019–2026)

2023–2026 Factory-verified

GM factory document — 2023 chevrolet 23 silverado 1500 electrical body builder sm en us 2022oct24, p.12.
GM factory document — 2024 chevrolet 24 silverado1500 electrical body builder 2023nov29, p.15.
GM factory document — 2025 chevrolet silverado 1500 retail and fleet fleet order guide rpo codes, p.1.
GM factory document — 2026 chevrolet silverado 1500 retail and fleet fleet order guide rpo codes, p.1.

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