Feature APPLICATION -- Suitable for 3 ton & 3 1/4 ton Floor Jack. For ARCAN- HJ3000-, COSTCO, HARBOR FREIGHT, POWERBUILT, NORCO, CORNWELL, ASTRO, MATCO, AFF, JACKCO, AFF, SUNEX, NEIKO. FUNCATION -- Prevent leak. Direct replacement pump plunger kit for the smaller of the two plungers at the "LOW SIDE". ITEM SIZE -- Pump plunger: 0.58"-x 2.88 Long with seals, Cylinder: 1.05" x 2.60" long. Capacity per Stand: 3 1/2. .
eBay