The D 76309 Water Hose (Bottom) is a high-quality lower radiator hose designed specifically for CASE 580 F backhoe loaders. This hose forms a critical part of the engine cooling system, allowing cooled coolant from the radiator to flow back to the engine and maintain stable operating temperature during heavy-duty operation.
Manufactured by HSA, this hose is made from reinforced rubber material engineered to withstand high temperature, pressure, vibration, and continuous coolant exposure commonly found in construction and earthmoving environments. Its durable construction helps prevent leaks, swelling, and premature hose failure.
With a precise size of 39.70 mm inner diameter x 200.00 mm length, this hose provides OEM-correct fitment, enabling direct replacement without modification.
Lower / bottom radiator water hose
Ensures efficient coolant return flow to engine
Resistant to heat, pressure, and engine vibration
Reinforced rubber for long service life
Direct replacement with OEM-accurate dimensions
Position: Bottom / Lower Radiator Hose
Inner Diameter (ID): 39.70 mm
Length: 200.00 mm
System: Engine cooling system
CASE 580 F
Radiator to engine coolant return connection
Cooling system maintenance and repair
Backhoe loader engine service
Brand: HSA
Condition: New
Category: Water Hose / Radiator Hose / Cooling System
D 76309 下水管（HSA） 是一款专为 CASE 580 F 反铲挖土机 设计的 散热器下部冷却水管。该水管属于发动机冷却系统的重要部件，用于将散热器中冷却后的冷却液输送回发动机，以保持发动机在正常工作温度范围内运行。
该产品由 HSA 制造，采用高品质加强橡胶材料，具备出色的 耐高温、耐压力、抗震动及耐冷却液腐蚀 性能，适合长时间高负载工程作业环境。
水管尺寸为 内径 39.70 毫米，长度 200.00 毫米，符合原厂安装规格，可直接替换安装，无需改装。
散热器下水管 / 底部水管
确保冷却液回流顺畅
耐热耐压，不易老化
加强橡胶结构，使用寿命长
原厂尺寸，安装方便
CASE 580 F
发动机冷却系统
散热器下部连接
反铲挖土机维修与保养
品牌： HSA
状态： 全新
类别： 水管 / 散热器水管 / 冷却系统
