This is a good used unit, removed from an 88 SPG.  This unit is for the twin pump cars, US model 16 valve 86 87 & 88 900-S as well as 85 86 87 88 900-Turbo.  We actually saw this car run and drive, it drove well, and had plenty of power.  This unit is used, but I think it should have a good bit of life left in it.

These units typically have a very good lifespan, and the main pump tends to last longer than the pre pump. This assembly has all, drop this in, and go.  I will also give a 60 day functionality warranty with this unit!  Some of these cars have flat blades, some have round.  - this has round, typical to find is US model 87-88-89 cars.