General Motors option code

KO5  — Engine Block Heater

KO5 (Engine Block Heater): a General Motors factory option code recorded on 1 model across 1977–1986, with installs and price where a source states them.

1 model · 9 model years · 9 sources

Dark 1977 Buick Riviera coupe silhouetted at dusk on a coastal overlook
1977 Buick Riviera at dusk Photo: Zxlimited, public domain, via Wikimedia Commons

Every sourced appearance

Year Model As named that year Price Installs
1977 Buick Riviera Engine Block Heater order code (Buick option code) $13 Unknown
1979 Buick Riviera Engine Block Heater order code (Buick option code) $15 Unknown
1980 Buick Riviera Engine Block Heater order code (Buick option code) $16 Unknown
1981 Buick Riviera Engine Block Heater order code (Buick option code) $16 Unknown
1982 Buick Riviera Engine Block Heater order code (Buick option code) $18 Unknown
1983 Buick Riviera Engine Block Heater order code (Buick option code) $18 Unknown
1984 Buick Riviera Engine Block Heater order code (Buick option code) $18 Unknown
1985 Buick Riviera Engine Block Heater order code (Buick option code) $18 Unknown
1986 Buick Riviera Engine Block Heater order code (Buick option code) $18 Unknown

Every row traces to the source it links from on that model's own year page; this table only collects them in one place.