Feature●Application : For Costco- Arcan dual pump plunger 3 or 3 1/4 Ton floor Jack,Replace Part Number :214739.●Function : Quality Replacement Parts for Repairs.●Products include : This kit covers all of the seals for the complete hydraulic unit (14Pcs).●High quality : Made of high-quality rubber. Durability and strength for repeated use.●Satisfaction Guarantee - If youre not 100% satisfied with our product, simply return it for a full refund in 30 days, guarantee with 12 months warranty.Description