KOMATSU EXCAVATOR PARTS MADE IN CHINA NEW WA300 WA320 WA350 WA380 WA400 WA420 WA450 421-43-26470 SWITCH,PARKING SPARKLING MACHINERY
SPARKLING MACHINERY NEW WA300 WA320 WA350 WA380 WA400 WA420 WA450 421-43-26470 Parking Switch is a dedicated safety control component for Komatsu WA300, WA320, WA350, WA380, WA400, WA420, and WA450 wheel loaders (widely used in construction, mining, and material handling). As the "parking safety trigger", it activates the excavator’s parking brake system—securing the machine in place during shutdowns or when parked on slopes, while preventing accidental movement that risks equipment damage or on-site injuries during loading, unloading, or idle periods.
Meeting Komatsu OEM standards (part no. 421-43-26470), it endures -30°C to 85°C temperatures, resists dust and vibration, and ensures stable electrical signal transmission. Strict testing guarantees seamless compatibility with the seven Komatsu models and long-term parking safety reliability.
Your Komatsu wheel loader’s parking safety solution begins here.
Now, we’re proud to present the KOMATSU EXCAVATOR PARTS MADE IN CHINA NEW WA300 WA320 WA350 WA380 WA400 WA420 WA450 421-43-26470 SWITCH,PARKING by SPARKLING MACHINERY. Next, we’ll cover its core strengths: seamless compatibility with seven Komatsu models, reliable parking brake activation, rigorous quality, and more—helping you understand how it enhances your equipment’s on-site safety and cuts maintenance troubles.
The SPARKLING MACHINERY NEW WA300 WA320 WA350 WA380 WA400 WA420 WA450 421-43-26470 SWITCH,PARKING Photo:
And first—thank you so sincerely, from the bottom of our hearts, for choosing SPARKLING MACHINERY’s 421-43-26470 Parking Switch for your Komatsu WA300, WA320, WA350, WA380, WA400, WA420, or WA450 wheel loader! Your trust isn’t just a purchase to us; it’s the driving force behind our commitment to meeting Komatsu’s strict standards for safety control components.
This parking switch isn’t just a spare part—it’s your machine’s "parking safety lock"; a faulty one can lead to unintended movement, posing risks to personnel and equipment. Ours is engineered to fit and perform exactly like Komatsu’s original, so you can count on it fully. Let’s dive into why it’s the perfect match for your machine.
Why choose the SPARKLING NEW WA300 WA320 WA350 WA380 WA400 WA420 WA450 421-43-26470 Parking Switch?
- Direct-fit compatibility: Exclusively tailored to match the exact mounting dimensions, electrical connector pinouts, and dashboard interface of Komatsu WA300/WA320/WA350/WA380/WA400/WA420/WA450 control systems. Marked with genuine part number 421-43-26470, it aligns perfectly with existing parking brake circuits, wiring harnesses, and instrument panels—no drilling, rewiring, or adapter use is needed. This cuts replacement downtime by up to 20%, getting your Komatsu wheel loader back to on-site work faster.
- Precision control: Features ultra-fast signal response (<0.03 seconds) and consistent contact conductivity (voltage drop <0.1V), strictly matching Komatsu’s original safety control parameters. It ensures instant parking brake activation—e.g., securing WA450 on mining slopes or WA300 in construction yards—preventing delays in safety engagement and avoiding accidental machine movement.
- Rigorous quality: Undergoes 18+ strict quality tests tailored to Komatsu wheel loader operating conditions, including electrical continuity checks (10,000+ cycles without failure), high-low temperature cycle tests (-30°C to 85°C, 700+ cycles), dust ingress trials (IP65 protection rating), and vibration durability checks (10-500Hz frequency range). It withstands dusty construction sites, rocky mining zones, and continuous equipment vibration without performance degradation.
- Professional support: Backed by a dedicated technical team with deep expertise in Komatsu WA300/WA320/WA350/WA380/WA400/WA420/WA450 safety systems and parking switch maintenance. We offer 7×24 online assistance, including step-by-step installation guides (with model-specific mounting torque charts and wiring connection diagrams), maintenance recommendations (e.g., periodic connector cleaning, contact inspection), and troubleshooting for issues like delayed response, signal failure, or loose fitting. Our team ensures an average response time of <2 hours.
- Cost-effective reliability: Delivers Komatsu OEM-level performance at a competitive price, avoiding the premium of original dealer parts for parking switches. Its durable construction (dust-proof housing, corrosion-resistant electrical contacts) extends service life by up to 35% compared to generic alternatives, reducing long-term replacement costs by 20%. It also minimizes unplanned downtime caused by switch failure—preventing safety-related incidents and delays in construction or mining projects.
About SPARKLING MACHINERY:
- Founded in 2013, SPARKLING focuses on high-quality excavator parts across hydraulics, undercarriage, engines and electrical systems. We prioritize stability, precision and continuous service, offering worldwide distribution, tailored solutions and strict QC to help customers reduce cost and increase uptime.
Get In Touch:
- Replace your failing ECU confidently. Contact SPARKLING for pricing, lead time, and technical support — restore optimal machine control quickly and reliably.
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📦 Packing
1. Packaging methods: Carton box + Wooden case/Pallet + Anti-rust treatment
2. Export-standard packaging to ensure safety during transportation
3. Custom packaging available upon request
4. Dimensions and weight can be provided for freight calculation



🚚 Shipping
1. Available shipping methods: Sea freight, Air freight, Express delivery (DHL, UPS, FedEx, etc.)
2. LCL (Less than Container Load) and FCL (Full Container Load) options are supported
3. For Russian clients, we can introduce the forwarder agent to you
4. Delivery time: Ships within 1-3 working days after payment (for items in stock)
💳 Payment
1. Accepted methods: T/T, Bank Transfer, PayPal, Alipay, WeChat Pay, Western Union
2. Deposit + balance payment available for large or custom orders
3. Flexible payment options—feel free to contact us for details
📌 Frequently Asked Questions (FAQs)
Q: Which excavator models is this part compatible with?
A: This product is compatible with major brands such as CAT, KOMATSU, HITACHI, and more. Custom specifications are also available.
Q: How can I make sure I’m selecting the correct part?
A: You can send us a photo of the old part, part number, or your excavator model, and we will help you confirm the right match.
Q: Is there a warranty for this product?
A: Yes, we offer a 6-month quality guarantee under normal use.
Get a free quote
We are committed to producing the highest quality products at the most competitive prices. Therefore, we sincerely invite all interested companies to contact us for more information.




Sparkling Machinery Co.,Ltd
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