GM 22072620 Reservoir Assembly, Coolant Recovery Replaces 22086094

See photos below: these slide onto the side of the washer fluid reservoir. The washer reservoir is outboard toward the fender; the coolant reservoir is inboard, toward the engine.

89-90 Buick Electra
89-90 Olds Ninety Eight
89-91 Buick Lesabre
89-91 Olds Delta 88
89-91 Bonneville