This auction is for a NOS master cylinder rebuild kit in perfect condition. Niehoff part # K-1315 ( 7/8" dia. ). These are NEW factory original " MADE IN THE USA " quality parts in the original factory package. Guaranteed superior quality that meets or exceeds all OEM specifications. Will fit 1978 1979 1980 1981 1982 1983 1984 1985 Buick ( Century, Regal, Skyhawk ); 1980-85 ( Skylark ); 1982-85 Cadillac ( Cimarron ); 1982-85 Chevy ( Cavalier, Celebrity ); 1980-84 ( Citation ); 1982-85 Oldsmobile ( Cutlass, Firenza ); 1980-84 ( Omega ); 1982-85 Pontiac ( J2000, 6000 ); 1985 ( Grand Am ) and 1980-84 ( Phoenix ). Combined shipping discounts apply on multiple purchases whenever possible. Questions are always welcome, so don't hesitate to ask. I have been selling on eBay for over 18 years so buy with confidence. Please check out my 100% feedback rating. Also be sure to check out my eBay store for more Vintage & Classic parts, accessories and auto literature. I list a large variety of NOS, NORS and quality used parts every week, so check back often.