Generator, 66 amp

Years 1963–86 Models 10 Factory citations 27

Also described as A/C Generator - 62 amp62 amp alternatorA/C generator - 62 amp62-amp Delcotron62-amp Delcotron (67–72 list) / 66-amp (73–87 & GM lists)66-amp generator (Delcotron)Generator

Also documented for GMC

Documented applications

Chevelle / El Camino

1964–1966 Factory-verified

GM Heritage factory kit — 1964 Chevrolet Chevelle, p.9.
GM Heritage factory kit — 1966 Chevrolet El Camino, p.3.

Impala / Full-Size

1963–70s (varies) Confirmed

Nova / Chevy II

1963–1965 Factory-verified

GM Heritage factory kit — 1965 Chevrolet Nova, p.5.

C/K Trucks

1965–66 Factory-verified

GM Heritage factory kit — 1965 Chevrolet Truck, p.19.
GM Heritage factory kit — 1966 Chevrolet Truck, p.24.
1967–72 Disputed

Amperage disagrees between sources
1973–82 Confirmed

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

1983–1986 Factory-verified

included with B3J, Z82, V10 and C60

GM Heritage factory kit — 1983 Chevrolet Blazer, p.9.
GM Heritage factory kit — 1984 Chevrolet Blazer RV Full Size, p.18.
GM Heritage factory kit — 1985 Chevrolet Blazer RV Full Size, p.11.
GM Heritage factory kit — 1986 Chevrolet Blazer, p.12.

S-10 Blazer — First generation (1983–1994)

1983–1985 Factory-verified

included with C60, C49 or V10

GM Heritage factory kit — 1983 Chevrolet S 10 Blazer, p.8.
GM Heritage factory kit — 1984 Chevrolet S 10 Blazer, p.8.
GM Heritage factory kit — 1985 Chevrolet S 10 Blazer, p.11.

C/K pickup — Square body (1983–1991)

1983–1986 Factory-verified

GM Heritage factory kit — 1983 Chevrolet Truck, p.23.
GM Heritage factory kit — 1984 Chevrolet Truck, p.45.
GM Heritage factory kit — 1985 Chevrolet Truck, p.43.
GM Heritage factory kit — 1986 Chevrolet Truck, p.159.

Chevy Van — Second generation G-series (1983–1996)

1983, 1984, 1986 Factory-verified

Delcotron.

GM Heritage factory kit — 1983 Chevrolet Vandura, p.15.
GM Heritage factory kit — 1984 Chevrolet G Van, p.17.
GM Heritage factory kit — 1986 Chevrolet G Van, p.26.

S-10 pickup — First generation (1982–1993)

1982–1985 Factory-verified

63 amp in 1982, 66 amp in 1983–1985; the merged S-10 Blazer doc writes Generator, 66 amp

GM Heritage factory kit — 1982 Chevrolet S 10, p.8.
GM Heritage factory kit — 1983 Chevrolet S 10, p.31.
GM Heritage factory kit — 1984 Chevrolet S 10, p.17.
GM Heritage factory kit — 1985 Chevrolet S 10, p.23.

Suburban — Square body (1983–1991)

1983–1986 Factory-verified

included with Z82, C60, C69, B3J, V10, C36 or C49

GM Heritage factory kit — 1983 Chevrolet Suburban, p.16.
GM Heritage factory kit — 1984 Chevrolet Suburban, p.19.
GM Heritage factory kit — 1985 Chevrolet Suburban, p.19.
GM Heritage factory kit — 1986 Chevrolet Suburban, p.19.

This page aggregates every documented appearance of K81 in the Chevrolet reference. Confidence and citations are shown per application — the same code can be better documented in one year than another.