RAYBESTOS BY ALCON PART # PHK 4001 OR ALCON PART #CSK2730E751. THESE ARE FOR 27mm / 30.2mm PISTON ALCON CALIPERS. EACH BAG INCLUDES 8 SEALS (4 FOR 27mm AND 4 FOR 30.2mm) PLUS SMALL CONTAINER OF ASSEMBLY GREASE TO THERE IS ENOUGH SEALS INCLUDED IN THIS DEAL TO REBUILD 20 CALIPERS.
