Part Type: A/C Accumulator. 1985 Buick Skyhawk. 1986 Buick Skyhawk. 1987 Buick Skyhawk Engine: 2.0L L4; EngineVIN: 1;. Type: Accumulator. 1988 Buick Skyhawk. 1989 Buick Skyhawk. Ensure that this part fits your vehicle by entering your vehicle's Year, Make, Model, Trim, and Engine in the Compatibility Table.