ACDelco PF47 Oil Filter with anti-drainback feature for 1984-1987 Buick Grand National, Turbo Regal and 1987 GNX.
The PF47 short-style filter was the factory original filter size that came on all new Buick Grand Nationals and Turbo Regals.
Depending on the availability of this part, you may also use Oil Filter PF47E - ACDelco
These are "Dealer only - Made in USA" filters NOT AVAILABLE THROUGH THE AFTERMARKET!
Don't be fooled, you cannot buy a better oil filter! We have cut open various other well known name brand aftermarket oil filters and found some with only half the amount of filter surface area AND NO ANTI-DRAINBACK FEATURE!
These filters will ship in their original ACDelco boxes as shown.