The YNF16344 421-03-11931 Radiator Lower Hose is designed for Komatsu WA450-1 and WA470-1 wheel loaders, providing a reliable path for coolant to return from the engine to the radiator. Constructed with high-quality synthetic rubber reinforced with durable textile layers, this hose is built to withstand high temperatures, internal pressure, and engine vibration. It ensures stable engine cooling and prevents overheating in demanding construction, mining, and material handling environments.

• OEM Cross Reference: 421-03-11931

• Machine Compatibility: Komatsu WA450-1, WA470-1

• Premium Rubber Material: Resistant to heat, coolant, oil, and aging

• Reinforced Multi-Layer Structure: Enhances durability and pressure resistance

• Flexible & Vibration-Tolerant: Reduces risk of cracking or leakage

• Efficient Coolant Return: Maintains consistent engine operating temperature

• Precision Molded Design: Ensures secure and leak-free installation

• Returns coolant from engine to radiator

• Maintains optimal cooling system performance for WA450-1 and WA470-1

• Suitable for heavy-duty construction, quarry, and material handling operations

• Strict Quality Inspection: Each hose tested before shipment

• Technical Assistance: Fitment verification and installation guidance

• Responsive After-Sales Service: Quick handling of customer inquiries

• Compatibility Confirmation: Support based on part number or machine model

• Individual Protective Packaging: Prevents deformation or transport damage

• Clear Identification Labeling: Part number and model clearly marked

• Flexible Shipping Options: Sea freight, air freight, DHL, FedEx, UPS

• Complete Export Documentation: Ready for international shipment

Q: Is this lower hose compatible with WA450-1 and WA470-1?
A: Yes, it is manufactured according to OEM specification 421-03-11931 for both models.

Q: What material is used in this hose?
A: Reinforced synthetic rubber designed for durability and high-temperature resistance.

Q: Can it withstand heavy-duty working conditions?
A: Yes, it is engineered for demanding cooling system applications.

Q: Do you provide compatibility confirmation before ordering?
A: Yes, we can verify fitment based on your machine details.