O-Ring

OEM O-Ring Part Of Cylinder Assembly P/N 166430A1 Part Of Seals Package P/N 166966A1 #154705A1 - OEM Hydraulic Component Replacement for Case Construction Equipment Used in service repairs, this OEM part is intended to replace failed originals affected by weak hydraulic response, internal leakage, and pressure-control issues and poor actuation, oil bypass, slow movement, and unreliable hydraulic control. Commonly sourced for hydraulic drift repair, oil bypass service, and heavy equipment hydraulic component replacement needs on heavy equipment.

Ships nationwide. In-stock parts ordered before 2:30 PM ET ship the same business day. Your exact shipping cost and delivery estimate are calculated at checkout from your ZIP code and the part’s size and weight; oversized and truck-freight items may need extra transit time and freight charges.

Free branch pickup is also available across Ohio, Indiana, Michigan, and Kentucky — just choose it at checkout.

30-day returns. New, unused parts in original packaging may be returned within 30 days. Some items — including electrical, special-order, and direct-from-supplier parts — are non-returnable. See our full return policy.