Wheel, spare, 18" (45.7 cm), steel

Years 2018–19, 2023–27 Models 4 Factory citations 12

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Also described as Wheel, spare, 18" (45.7 cm) steelWheel, spare, 18 x 4.5, B, steel, design 1Wheel, spare, 18" steel

Also documented for Buick Cadillac GMC

Documented applications

Blazer — C1XX (2019–2026)

2019, 2025–2026 Factory-verified

2LT, 3LT, RS: S; Premier: S (2025 only)

GM factory document — 2019 chevrolet all new blazer fleet order guide wayback, p.3.
GM factory document — 2025 chevrolet blazer fleet order guide rpo codes, p.1.
GM factory document — 2025 chevrolet blazer fleet order guide, p.7.
GM factory document — 2026 chevrolet blazer fleet order guide rpo codes, p.1.
GM factory document — 2026 chevrolet blazer fleet order guide, p.6.

Colorado — Third generation (2023–2027)

2023–2024 Factory-verified

2023 and 2024 upfitter lists only

GM factory document — 2023 chevrolet 23colorado electrical body builder, p.12.
GM factory document — 2024 chevrolet 24colorado electrical body builder manual 18272478 2023oct09, p.13.

Traverse — C1XX (2018–2024)

2018–2019 Factory-verified

S on all trims

GM factory document — 2018 chevrolet traverse order guide copy gm authority, p.17, p.54.
GM factory document — 2019 chevrolet traverse order guide copy gm authority, p.19, p.76.
2024 Single-source

decoderpo.com's 2024 Traverse Limited order guide page lists it on its Standart Equipment tab (1LS); the page is a T3 mirror of GM's guide and the repository holds no GM document for 2024

Traverse — Third generation (2024–2027)

2025–2027 Factory-verified

S on all trims

GM factory document — 2025 chevrolet traverse fleet order guide, p.8.
GM factory document — 2026 chevrolet traverse fleet order guide, p.8.
GM factory document — 2027 chevrolet traverse fleet order guide, p.8.
2024 Single-source

decoderpo.com's 2024 ALL-NEW Traverse order guide page lists it on its Standart Equipment tab (LS, LT, Z71); the page is a T3 mirror of GM's guide and the repository holds no GM document for 2024

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