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KOMATSU PC120-6 Front Idler203-30-00210

Supplier: Racer Machinery

Brand: KOMATSU

OEM Available: Yes

Place of delivery: China

Payment: Credit / Debit cards; PayPal

Price: Chat Online

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excavator KOMATSU PC120-6 Front Idler203-30-00210

KOMATSU PC120-6 Front Idler 203-30-00210 Detailed Information

Basic Information

Part Number: 203-30-00210 (also written as 2033000210, 22B-30-00210)
Alternative Names: Track Idler Assembly, Front Guide Wheel, Idler Wheel Group
Category: Excavator Undercarriage Parts - Track Guidance System
Original Manufacturer: KOMATSU

Compatible Models

This front idler fits the following KOMATSU construction equipment models:

PC100 Series: PC100-5, PC100-5C, PC100-5S, PC100-5Z, PC100-6, PC100-6E, PC100-6S, PC100-6Z
PC120 Series: PC120-5, PC120-5C, PC120-5S, PC120-5M, PC120-5Z, PC120-6, PC120-6E, PC120-6H, PC120-6J, PC120-6S, PC120-6Z, PC120LC-6
PC128 Series: PC128US-1, PC128US-2, PC128UU-1, PC128UU-2
PC130 Series: PC130-5, PC130-5S, PC130-6, PC130-7, PC130-8
PC138 Series: PC138US-8, PC138USLC-8, PC138USLC-10
Other: PC110R-1, BR580JG-1 Crusher

Technical Specifications

Complete Assembly Weight: Approximately 38 kg (83.8 lbs)
Body Material: SCMn3A high-strength alloy steel (same as OEM specification)
Surface Treatment: Induction-hardened tread surface
Surface Hardness: 52-57 HRC with 3-7mm deep hardened layer
Bearing Type: Bi-metal copper bushing (0.6mm thick copper layer)
Seal System: Floating oil seal with 2% molybdenum content for extended life
Shaft Finish: Ra 0.2-0.4 surface roughness for reduced friction
Lubrication: Factory pre-lubricated with high-quality lithium grease
Design Life: 4000-5000 operating hours under normal conditions
Function: Guides the track chain, maintains proper alignment, absorbs impact loads during travel, and works with the track recoil spring to provide tension adjustment

Market Price & Availability

Chinese Aftermarket: $120 - $150 per unit (6 months to 1 year warranty)
European/American Aftermarket: $200 - $300 per unit (1-3 year warranty)
Genuine KOMATSU: $450 - $600 per unit
Major Aftermarket Brands: Berco, ITR, Blumaq, Costex Tractor Parts, A&S Machinery
Lead Time: 1-3 days for shipping from Chinese suppliers, 7-15 days for international delivery
Note: Sold individually. Each excavator requires 2 units (1 per track)

Related Parts

203-30-00221: Interchangeable alternative part number used by some suppliers
07177-10050: Idler bushing replacement kit
385-11066652: Idler shaft pin
203-30-56140: Mounting bolt kit
22B-30-11240: Matching track recoil spring for PC100-6/PC120-6 models

Installation & Maintenance Precautions

Safety Warning: The front idler is heavy (38kg). Always use proper lifting equipment during installation and removal to prevent personal injury.
Pre-Installation Check: Inspect the idler yoke and track frame for cracks or excessive wear before installation.
Torque Specification: Tighten mounting bolts to 85-95 N·m in a crisscross pattern to ensure even pressure distribution.
Alignment Verification: After installation, verify that the idler is properly aligned with the track chain and sprocket to prevent premature wear.
Regular Inspection: Inspect the idler every 250 operating hours for signs of wear, cracks, or oil leakage from the seals.
Replacement Timing: Replace immediately if the tread wear exceeds 10mm, if there are any cracks in the body, or if the seals are leaking.
Debris Removal: Clean accumulated mud, rocks, and debris from around the idler regularly to prevent track jamming and excessive wear.

Racer Machinery company provides genuine KOMATSU PC120-6 Front Idler203-30-00210. We guarantee that all parts are brand new products. You can directly consult us about the relevant content of KOMATSU PC120-6 Front Idler203-30-00210, such as size, weight, transportation, shipping costs, and so on.

We have been engaged in the aftermarket spare parts sales industry for many years. As a professional excavator parts supplier. The clients we collaborate with are located around the world, including Costa Rica, San Jose (Costa Rica), Tegucigalpa (Honduras), Netherlands, Campinas (Brazil), Indonesia, and more. Not only KOMATSU PC120-6 Front Idler203-30-00210, we also have products such as Engine Assebly, hydraulic main pump assy, PC50MR-2 main pump/pc50uu-2 hydraulic pump, PC300-7 207-27-61210 Front Idler assy, PC450-8 water pump 6251-61-1101, etc. We have strong global sales capabilities for excavator parts. Looking forward to cooperate with you.