Heavy duty battery

Years 1963–82 Models 5 Factory citations 10

Also described as Heavy Duty BatteryHeavy Duty Battery (Delco Energizer R89WPT)Heavy-duty batteryHD battery

Documented applications

Camaro

1970s–1981 Factory-verified

GM Heritage factory kit — 1981 Chevrolet Camaro, p.39.

Corvette (C3)

1974 Factory-verified

$15.00; 9,169 built

GM Heritage factory kit — 1974 Chevrolet Corvette, p.30.
1975 Factory-verified

$15.00; 16,778 built

GM Heritage factory kit — 1975 Chevrolet Corvette, p.7.
1976 Factory-verified

$16.00; 25,909 built

GM Heritage factory kit — 1976 Chevrolet Corvette, p.22.
1977 Factory-verified

$17.00; 32,882 built

GM Heritage factory kit — 1977 Chevrolet Corvette, p.48.
1978 Factory-verified

$18.00; 28,243 built

GM Heritage factory kit — 1978 Chevrolet Corvette, p.22.
1979 Factory-verified

$21.00; 3,405 built (CorvSport's table shows shifted rows for UA1/U58/U75/U81; CAC and CorvetteStory agree on these values)

GM Heritage factory kit — 1979 Chevrolet Corvette, p.7.
1980 Factory-verified

$22.00; 1,337 built

GM Heritage factory kit — 1980 Chevrolet Corvette, p.59.

Impala / Full-Size

1963–70s (varies) Confirmed

Nova / Chevy II

1974–1979 Factory-verified

GM Heritage factory kit — 1975 Chevrolet Nova, p.70.
GM Heritage factory kit — 1979 Chevrolet Nova, p.9.

C/K Trucks

1973–82 Confirmed

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This page aggregates every documented appearance of UA1 in the Chevrolet reference. Confidence and citations are shown per application — the same code can be better documented in one year than another.