Parking Switch 423-06-45370 423-06-45371 Fits for Komatsu Loader WA380 WA430 WA450 WA470 WA500

Parking Switch 423-06-45370 423-06-45371 – Replacement for Komatsu Loader WA380 WA430 WA450 WA470 WA500

Aftermarket parking switch engineered for reliable brake engagement signaling and consistent operator safety system performance in Komatsu WA-series wheel loader applications. Precision-manufactured components ensure drop-in compatibility with correct fitment.

Technical Specifications

• Part Numbers: 423-06-45370, 423-06-45371, 4230645370, 4230645371
• Condition: New, aftermarket replacement
• Function: Detects and signals parking brake engagement status to the machine control system, enabling transmission interlocks, operator alerts, and safety system responses across Komatsu WA380, WA430, WA450, WA470, WA480, and WA500 wheel loader applications

Equipment Compatibility

Note: Compatibility is provided for reference. Please verify against your part number before ordering.

Fits the Following Applications:

• Komatsu Loader: WA380, WA380Z, WA430, WA450, WA470, WA480, WA500

Why Choose This Parking Switch

The parking switch is a critical safety and control component in your Komatsu wheel loader — it communicates parking brake status to the machine’s control system to enforce transmission interlocks, trigger operator warnings, and ensure the loader cannot be driven with the parking brake engaged. A failed or faulty parking switch results in fault codes, disabled safety interlocks, and potential regulatory non-compliance that can ground equipment on active quarry, mining, and construction job sites. This replacement unit delivers:

• Reliable brake status signaling – Engineered to meet the switching characteristics, connector, and signal output specifications of Komatsu WA380, WA430, WA450, WA470, WA480, and WA500 wheel loader brake control systems
• Exact-fit installation – Direct replacement with correct connector type, mounting configuration, and electrical interface to match Komatsu loader specifications without modification
• Durable construction – Built to withstand vibration, dust, moisture, and the continuous duty demands of Komatsu wheel loader operation in quarry, mining, and construction environments
• Cost-effective solution – Aftermarket quality at a fraction of dealer pricing

Package Contents

• 1 × Parking Switch 423-06-45370

Essential for Komatsu WA380, WA430, WA450, WA470, WA480, and WA500 wheel loader parking brake system maintenance and switch replacement. Keep your Komatsu loader delivering reliable safety system performance on every shift.