Product Description
Komatsu KO 11073-40 roll pin is an OEM spring pin used as a retaining element in electric lift truck assemblies, compatible with multiple Komatsu model chassis and hydraulic components. Includes direct equivalent part numbers but no documented supersession or cross-reference beyond manufacturer designations. Typical construction is presumed spring steel for press-fit retention applications in high-cyclic shock environments.
Specifications
Part Numbers & Compatibility
| OEM Part Number | KO 11073-40 |
| Manufacturer Part Number | KO11073-40 |
| Equivalent Part Number | KO1107340 |
| Compatibility - Models | FR18S-2A/23S-2A, FR15DR-2A CHASSIS, FR15DR-2A REACH CYLINDER ASSEMBLY |
Frequently Asked Questions
Q: What equipment compatibility does the KO 11073-40 roll pin provide?
A: The KO 11073-40 is a Komatsu OEM spring pin for FR18S-2A, FR23S-2A, and FR15DR-2A electric lift truck chassis and reach cylinder assemblies. It serves as a retaining element in hydraulic subassemblies that experience high-cyclic shock loading.
Q: What are the equivalent part numbers for the KO 11073-40?
A: The KO 11073-40 carries equivalent part designations including KO1107340 and manufacturer part number 11073-40. These are direct equivalents with no documented cross-references to non-Komatsu suppliers. Use the exact SKU KO 11073-40 when ordering.
Q: What material and construction method is used in the KO 11073-40?
A: The KO 11073-40 is manufactured from spring steel using precision cold-forming and heat treatment to achieve consistent diameter and elastic properties. Its press-fit design enables reliable retention in bore holes under sustained vibration and cyclic pressure loading typical of forklift hydraulic systems.
Q: How do I determine when the KO 11073-40 roll pin requires replacement?
A: Replace the KO 11073-40 if the retained component exhibits lateral movement, if the pin shows visible cracks or stress fractures, if corrosion or surface pitting is evident, or if the pin cannot maintain consistent tension during assembly. Spring steel fatigue typically occurs after 3000 to 5000 operating hours depending on shock severity.
Q: Is the KO 11073-40 compatible with aftermarket or non-Komatsu reach cylinders?
A: No. The KO 11073-40 is engineered specifically for Komatsu FR-series cylinders and mast assemblies. Bore hole diameters and pocket depths differ across manufacturers. Use only the specified Komatsu OEM pin for your equipment to ensure proper retention and safety.