Fuel tank, approximately 31 gallon

Years 1983–87 Models 2 Factory citations 9

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Also documented for GMC

Documented applications

Blazer (full-size, K5) — Square body (1983–1991)

1983–1986 Factory-verified

about 31 gallons with gasoline engines and 32 gallons with the diesel; replaces the production tank

GM Heritage factory kit — 1983 Chevrolet Blazer, p.11.
GM Heritage factory kit — 1984 Chevrolet Blazer RV Full Size, p.6.
GM Heritage factory kit — 1985 Chevrolet Blazer RV Full Size, p.12.
GM Heritage factory kit — 1986 Chevrolet Blazer, p.13.

Suburban — Square body (1983–1991)

1983–1987 Factory-verified

about 31 gallons with gasoline engines and 32 gallons with the diesel; replaces the production tank

GM Heritage factory kit — 1983 Chevrolet Suburban, p.18.
GM Heritage factory kit — 1984 Chevrolet Suburban, p.20.
GM Heritage factory kit — 1985 Chevrolet Suburban, p.21.
GM Heritage factory kit — 1986 Chevrolet Suburban, p.22.
GM Heritage factory kit — 1987 Chevrolet Suburban, p.27.

This page aggregates every documented appearance of NK7 in the Chevrolet reference. Confidence and citations are shown per application — the same code can be better documented in one year than another.