Komatsu Part O-RING 700-61-49160

—

Product Overview

The 700-61-49160 O-RING is a genuine Komatsu OEM replacement O-ring from the 700 prefix series. O-rings are the fundamental sealing components in your machine's hydraulic system — elastic rings that compress into precision-machined grooves to block the escape of pressurized fluid between two mating surfaces. The O-ring accomplishes this through a combination of the interference fit in the groove and the pressure-assisted sealing that occurs when system pressure forces the O-ring against the low-pressure side of the groove, increasing the contact force against the sealing surfaces.

Part Number: 700-61-49160 Part Name: O-RING Part Type: OEM Komatsu Replacement Seal Availability: In stock

—

When to Replace

Replace the 700-61-49160 when fluid is visible at the sealed connection — oil, fuel, or coolant weeping from the fitting or flange indicates the seal is no longer effective; when the O-ring feels hard, shows surface cracks, or has developed a permanent flat spot from compression set; when cuts, nicks, extrusion damage, or rolled edges are visible on the seal surface; or every time the sealed connection is opened for service — O-rings are single-use components that must be replaced at every disassembly.

—

Installation

1. Confirm 700-61-49160 matches the old seal's inner diameter and cross-section
2. Clean the groove thoroughly — old seal fragments and trapped debris create immediate leak paths
3. Apply a thin film of clean hydraulic oil to help the O-ring slide into position without rolling
4. Position without twisting — a rolled O-ring will leak the moment system pressure is applied
5. Tighten the connection to the specified torque — achieving the correct O-ring compression is critical

—

Request a Quote

Need the Komatsu 700-61-49160 O-RING? Contact us through the form or by phone, email, or WhatsApp. We respond within one business day.