The AR2840891 O-Ring (14 x 2 mm) is a precision replacement sealing component designed for AR45 and AR60 pressure washer pumps. Engineered to exact specifications, this O-ring provides a reliable, leak-free seal to maintain proper pressure, fluid flow, and overall pump efficiency. Commonly referenced in OEM parts diagrams, this O-ring is used in multiple locations across AR pump models, making it an essential service part for routine maintenance, repairs, and pump rebuilds. Key Features OEM replacement AR2840891 O-Ring size: 14 mm x 2 mm High-quality sealing material for pressure washer applications Prevents leaks and pressure loss Designed for long-lasting durability under operating stress Parts Diagram References AR45: Position #51 AR60: Positions #68 and #73 Compatible Applications AR45 pressure washer pumps AR60 pressure washer pumps Pump servicing, maintenance, and rebuild kits Restore proper sealing and performance with this exact-fit AR2840891 O-Ring, trusted for professional pressure washing and soft wash systems.