20Y-70-11390 SHIM KOMATSU

20Y-70-11390 SHIM KOMATSU

When precision matters in the world of heavy machinery, even the smallest components play a vital role in ensuring performance, safety, and durability. The 20Y-70-11390 SHIM KOMATSU is one such critical part, expertly engineered to deliver exact spacing and alignment within complex Komatsu machinery systems. Whether you’re conducting a rebuild or preventive maintenance, this shim is designed to meet OEM-grade performance expectations, ensuring a reliable fit and seamless integration.

Product Overview

The 20Y-70-11390 SHIM KOMATSU is a precision-ground flat steel ring used to adjust tolerances, maintain alignment, and reduce wear between moving parts. It is commonly employed in critical joints or between rotating components such as pins and bushings, where maintaining precise tolerances is essential for optimal function.

Manufactured from high-grade steel, the 20Y-70-11390 shim resists deformation under heavy loads and harsh working conditions. This part is trusted across numerous heavy-duty applications and is essential for operators aiming to maintain machine efficiency and minimize unplanned downtime.

Key Technical Specifications

• Part Number: 20Y-70-11390

• Part Type: Shim (Spacer Ring)

• Material: Hardened Steel

• Shape: Circular flat ring with internal cut-out

• Outer Diameter (OD): Engineered to Komatsu factory standards

• Inner Diameter (ID): Precisely machined for tight tolerances

• Thickness: Typically between 1mm–3mm (varies by use)

• Finish: Smooth surface for minimal friction and wear

• Weight: Lightweight yet structurally strong for high-performance durability

Functional Applications

The 20Y-70-11390 SHIM KOMATSU is used to:

• Maintain correct axial alignment between components

• Absorb vibration and stress between load-bearing parts

• Adjust clearance to factory-specified tolerances

• Prevent uneven wear caused by metal-on-metal contact

• Ensure reliable assembly and disassembly of mating parts

Compatible Komatsu Models

This shim is widely used in a range of Komatsu excavators and machinery models, especially within the hydraulic, boom, or arm assemblies. It is compatible with the following models:

• PC200-6

• PC210-6

• PC220-6

• PC228US-3

• PC300-6

• PC350-6

• PC400-6

• PC450-6

These models are frequently utilized in construction, mining, and quarry operations where performance and structural integrity are mission-critical.

Benefits of the 20Y-70-11390 SHIM KOMATSU

• Precision Fit: Manufactured to exacting standards to guarantee optimal performance in Komatsu machinery.

• Extended Component Life: Prevents premature wear on bushings, bearings, and shafts by maintaining alignment.

• Durability: Made from industrial-grade materials to resist corrosion, pressure, and fatigue.

• Easy Installation: Designed for fast, seamless integration without requiring additional modifications.

• Versatility: Can be used across various heavy machinery joints and mechanical assemblies.

Why Choose 3GEN Export for Your Komatsu Spare Parts?

At 3GEN Export, we understand that your business depends on uptime. That’s why we stock and supply high-performance OEM-standard spare parts like the 20Y-70-11390 SHIM KOMATSU with rapid delivery and uncompromised quality.

• Worldwide delivery in just 5 working days

• OEM-quality spare parts at competitive pricing

• 1-year manufacturer warranty on all parts

• Secure ordering and shipment tracking available

No matter where your project site is — whether it’s a remote mining location or a large-scale urban construction project — 3GEN Export is committed to getting you the parts you need, when you need them.

Installation Notes

While installation is straightforward for trained service personnel, it is essential to follow the specific technical service manual (TSM) instructions for your exact Komatsu model. Using the correct torque specifications and positioning ensures maximum service life of the shim and the components it supports.

If you’re unsure about compatibility or fitting instructions, our technical team at 3GEN Export is ready to support you with guidance and model-specific documentation.

Common Use Cases

• Arm-cylinder and boom pivot point tolerance adjustments

• Swing machinery component separation

• Bearing preload setting in hydraulic systems

• Reduction of shaft play in linkage assemblies

Procurement & Support

Ordering the 20Y-70-11390 SHIM KOMATSU from 3GEN Export is simple and reliable. Our logistics team ensures parts are packed securely and shipped globally within 5 business days. We handle customs, insurance, and tracking so you can focus on your operations.

Manufactured in Turkey, these products are made using the latest technologies and built to meet the highest international standards. Each machine is a high-quality copy of the original, ensuring durability, precision, and performance that you can rely on for modern construction and metalworking projects.