General Motors option code

ZK3

ZK3: a General Motors factory option code reused for more than one part across 1968–1969 and 1 model — see the table for what it named each year, with installs and price where a source states them.

General Motors reused this code for more than one part over the years — read the "as named that year" column for what it meant on each row rather than assuming one meaning throughout.

1 model · 2 model years · 2 sources

Blue 1968 Chevrolet Chevelle SS 396 two-door hardtop on grass at a car show, front three-quarter, with the SS 396 grille badge, black-out lower body and 396 fender badge — 1968 Chevrolet Chevelle SS 396 sport coupe in blue Photo: Sicnag, CC BY 2.0, via Wikimedia Commons

Every sourced appearance

Year	Model	As named that year	Price	Installs
1968	Chevrolet Chevelle and Malibu SS	Deluxe Seat Belts & Front Seat Shoulder Harness / * Coupes with bucket seats - 5 seat & 2 shoulder / * Coupes with full width seats - 6 seat & 2 shoulder / * Sedans and 2 seat wagons - 6 seats & 2 shoulder / * 3 seat wagons - 8 seat & 2 shoulder / * Sedan pickup RPO	$11.10	31,843 Reported
1969	Chevrolet Chevelle and Malibu SS	Deluxe seat belts and front shoulder harness RPO	$13.70	48,792 Reported

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