Wheels, 18 inch aluminum, bright machined, with Lunar Gray pockets

Years 2015, 2017–20, 2022–26 Models 3 Factory citations 13

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Also described as Wheels, 18 x 8.5, bright-machined aluminumWheels, 18 x 8.5 high gloss Black painted aluminum

Also documented for Buick

Documented applications

Malibu — ninth generation (2016–2025)

2025 Factory-verified

1LT: O

GM factory document — 2025 chevrolet malibu fleet order guide, p.15.

Silverado — K2XX (2014–2019)

2015, 2017–2019 Factory-verified

GM factory document — 2015 chevrolet silverado 1500 fleet order guide wayback, p.1.
GM factory document — 2017 chevrolet sierra silverado electrical body builders manual service manual 2017 en us, p.27.
GM factory document — 2018 chevrolet silverado 1500 fleet order guide copy gm authority, p.23, p.216.
GM factory document — 2019 chevrolet silverado 1500 ld double cab fleet order guide copy gm authority, p.7, p.49.

Silverado — T1XX (2019–2026)

2020, 2022–2026 Factory-verified

the 2020 and 2025 lists print the size only; the finish is from the 2020 guide's product page and the 2026 list;

GM factory document — 2020 chevrolet silverado 1500 fleet order guide wayback, p.1.
GM factory document — 2020 chevrolet silverado 1500 fleet order guide wayback, p.3.
GM factory document — 2022 chevrolet 22 silverado 1500 new electrical body builder 042822, p.12.
GM factory document — 2023 chevrolet 23 silverado 1500 electrical body builder sm en us 2022oct24, p.13.
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.
GM factory document — 2026 chevrolet silverado 1500 retail and fleet fleet order guide, p.16.

This page aggregates every documented appearance of RD1 in the Chevrolet reference. Confidence and citations are shown per application — the same code can be better documented in one year than another.