KOMATSU 07002-11423 O-RING

The Komatsu 07002-11423 O-Ring is a genuine sealing ring built for the hydraulic systems of Komatsu’s mid-to-large excavator lineup. It sits within pump housings, cylinders, or valve connections, holding hydraulic fluid securely under pressure while keeping dust, grit, and moisture from making their way into the circuit. It’s a small part, but on machines that rely on precise hydraulic control for digging and lifting, a compromised seal here can quietly erode performance long before it becomes an obvious problem.

Manufactured to Komatsu’s OEM specifications, this O-Ring uses a resilient elastomer compound designed to resist breakdown from hydraulic oil, grease, and the repeated pressure cycling that comes with constant excavator operation. Its material stays pliable rather than stiffening over time, allowing it to maintain a consistent seal through extended duty cycles and fluctuating temperatures. Manufactured to tight dimensional tolerances, it seats properly on the first install and holds its shape reliably instead of wearing unevenly like lower-grade alternatives.

Because hydraulic pumps and cylinders are among the costliest components to rebuild, fitting a genuine seal rather than a generic substitute is a practical safeguard. Swapping this O-Ring during scheduled maintenance helps prevent slow pressure loss, reduces oil consumption, and keeps the surrounding hydraulic assembly protected from premature wear — all of which adds up to fewer surprises and less downtime.

Technical Features

• Genuine Komatsu-spec O-Ring
• Durable elastomer construction
• Resistant to hydraulic oil, grease, and pressure cycling
• Retains flexibility under heavy use and temperature changes
• Precision-manufactured for accurate, consistent fitment
• Helps prevent leakage and contamination in hydraulic circuits
• Suited for mid-to-large excavator hydraulic systems

Compatible Machine Models

Komatsu Excavator

• PC200-6Z
• PC220-6
• PC220-6Z
• PC220LC-6

Alternative Part Numbers

• 07001-01009
• 07000-12105
• 23B-22-11380

Shop & Supply stocks the Komatsu 07002-11423 O-Ring for immediate dispatch, alongside a full range of genuine seals for Komatsu excavator hydraulic systems. Fitting the original part means the exact material grade and tolerances your excavator was engineered around — steady sealing performance, even under demanding digging and lifting cycles.