Ship through, produced in Ft. Wayne Assembly, shipped to Brand FX Body Company, returned to Ft. Wayne Assembly for shipping to final destination

Years 2015, 2020, 2025–27 Models 3 Factory citations 5

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Also described as Ship thru, Brand FX Body Company

Also documented for GMC

Documented applications

Silverado 1500 — Fifth generation (2027)

2027 Factory-verified internal

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

Silverado — K2XX (2014–2019)

2015 Factory-verified internal

GM factory document — 2015 chevrolet silverado 1500 fleet order guide wayback, p.1.

Silverado — T1XX (2019–2026)

2020, 2025–2026 Factory-verified internal

built at Ft. Wayne Assembly; returned to Ft. Wayne Assembly for final shipping;

GM factory document — 2020 chevrolet silverado 1500 fleet order guide wayback, p.1.
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 A4I in the Chevrolet reference. Confidence and citations are shown per application — the same code can be better documented in one year than another.