KOMATSU 207-62-64740 O-RING

The Komatsu 207-62-64740 O-Ring is a genuine sealing ring built for the hydraulic systems of some of Komatsu’s largest dozers and excavators. It’s fitted into pump housings, cylinders, and valve connections to hold hydraulic pressure steady, stopping fluid from seeping out while keeping contaminants from working their way into the circuit. On machines this size, where hydraulic components move enormous loads, even a minor seal failure can translate into real efficiency losses — which is exactly the kind of problem this part is designed to prevent.

Manufactured to Komatsu’s OEM specifications, this O-Ring is molded from a rugged elastomer compound formulated to resist degradation from hydraulic oil, grease, high pressure, and the heat generated by heavy-duty operation. Its material flexes without cracking or hardening, so it keeps sealing reliably through long duty cycles and repeated pressure surges. Tight manufacturing tolerances mean it seats correctly on installation and continues performing consistently rather than deteriorating unevenly over time.

On large-scale machines like the D375A and PC1250 series, hydraulic downtime is expensive, which makes using a genuine seal instead of a rough aftermarket match a practical way to protect the investment. Replacing this O-Ring at the right service interval helps avoid pressure loss, reduces oil consumption from slow leaks, and keeps the pumps and cylinders around it running the way they were engineered to.

Technical Features

• Genuine Komatsu-spec O-Ring
• Heavy-duty elastomer compound
• Resistant to hydraulic oil, grease, and pressure cycling
• Holds seal integrity under sustained heat and heavy loads
• Manufactured to precise OEM tolerances for accurate fitment
• Reliable performance across extended duty cycles
• Suited to large-frame dozer and excavator hydraulic systems

Compatible Machine Models

Komatsu Bulldozer

• D375A-5E0
• D375A-5
• D475A-5

Komatsu Excavator

• PC1250-7
• PC1250-8
• PC1250-8R
• PC1250LC-7
• PC1250LC-8

Alternative Part Numbers

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

Shop & Supply stocks the Komatsu 207-62-64740 O-Ring for immediate dispatch, along with a wide selection of genuine seals for Komatsu’s heavy-frame dozers and excavators. Fitting the original part ensures the exact material grade and tolerances your machine’s hydraulic system was designed around — dependable sealing performance even under the heaviest working conditions.