Radiator Upper Hose Description
YNF16678, referencing OEM part 22L-03-21171, is the upper radiator hose used in the Komatsu PC35MR-3 excavator’s cooling system. Its primary function is to channel heated coolant from the engine to the radiator efficiently. Constructed from high-grade EPDM rubber, this hose withstands high temperatures and pressure fluctuations without deformation or leaks. The internal diameter and curvature are designed for a precise fit, minimizing installation time and risk of leakage. Whether you’re maintaining fleet vehicles or supplying repair shops, this radiator hose ensures performance consistency and long-term durability.
Radiator Hose Technical Sheet
| Item |
Description |
| Applicable Machine Model |
Komatsu PC35MR-3 |
| Part Number |
22L-03-21171 |
| YNF Number |
YNF16678 |
| Product Type |
Radiator Hose / Upper Water Hose |
| Installation Position |
Engine Cooling System – Upper |
| Material |
EPDM Rubber |
| Function |
Transfers coolant from engine to radiator |
| Brand |
YNF |
| Country of Origin |
China |
| MOQ |
1 piece |
| Shipping Method |
Express, Air, Sea |
| Payment Method |
T/T, PayPal, L/C |
Radiator Hose Applications
| Application Area |
Description |
| Excavator cooling systems |
PC35MR-3 engine coolant flow |
| Equipment maintenance & repair |
Essential replacement in overheating prevention |
| Spare parts inventory |
High turnover item for engine parts resellers |
| Engine rebuild kits |
Included in full cooling system repair kits |
| Fleet maintenance |
Suitable for long-term reliability replacement |
Radiator Hose Upper Detail Display
Related Products:
-
PC35MR-3 lower radiator hose
-
Thermostat and coolant sensor for PC35 series
-
Engine water pump for Komatsu mini excavators
FAQs:
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Is this hose heat-resistant? Yes, it’s made of EPDM material tested for engine cooling systems.
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What engine model is this used with? Designed for Komatsu PC35MR-3 with standard cooling setup.
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Do you offer full hose kits? Yes, inquire for upper + lower radiator hose combos.