Accessory Introduction
421‑43‑37300 hydraulic control valve, also known as hydraulic distribution valve assembly, is the core hydraulic control unit for Komatsu wheel loader. It realizes hydraulic circuit switching and pressure distribution, precisely controls bucket lifting, steering and dumping movements, ensuring stable operation and fast response. Made of high-strength cast iron, with CNC precision machining and wear-resistant heat treatment for spool. Good sealing performance, high pressure resistance and impact resistance, suitable for heavy-duty working conditions such as mining, quarry and earthwork. Direct replacement for original parts, perfect fit without modification. Effectively solve common hydraulic faults like slow action, pressure leakage and oil seepage. Widely used for loader overhaul and maintenance. Each valve is fully pressure tested before shipment, stable quality, bulk order available.
Application Model: Komatsu Wheel Loader WA470-3, WA470-5, WA480-5
Specification parameters
| Project | Parameters |
| Part Number | 421-43-37300 |
| Product Name | Hydraulic Control Valve |
| Shell Material | Cast Iron |
| Surface Treatment | Gray Anti-Rust Paint |
| Applicable Medium | Hydraulic Oil for Construction Machinery |
| Installation Method | Flange Installation |
| Oil Port Type | Standard Threaded Oil Port |
| Product Status | New Replacement Part |
Packaging Information
1. Each item is protected by a bubble bag. An internal dust-proof cover seals all oil ports to prevent dust and impurities from entering the valve body.
2. The outer layer is packaged in a thick cardboard box for independent protection.
3. The package contains product labels, marking the part number 421-43-37300.
4. It can support reinforced packaging for foreign trade export and can also support the consolidation of multiple items for packing.
After-sales service
2. Warranty: Provide warranty service for brand-new accessories. If the malfunction is not caused by human error or improper installation, and is within the warranty period, we will offer after-sales support.
3. Incompatibility handling: After receiving the goods, check the part number. If it is confirmed that the part number matches but cannot be installed, please contact the customer service immediately and provide photos and videos for verification.
4. Disclaimer: Valve body damage caused by modification, incorrect installation, or oil contamination is not covered by the warranty.
5. Delivery: After order confirmation, the goods will be arranged for shipment. We support export customs declaration and shipment.
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