High-efficiency 02/801380 coolant pump by GX-AFTER. This is a key cooling system component, designed to work with reliable Isuzu engines (4BD1, 4BG1, 6BD1, 6BG1 series). The pump is used in JCB crawler and wheeled excavators (JS series), as well as Hitachi and John Deere machines. The set includes a dedicated mounting gasket.
GX-AFTER cooling system products are tested for flow efficiency and leak tightness. A solid body and durable bearings ensure maintenance of optimal engine operating temperature even under heavy load.
| Brand | Machine Models |
|---|---|
| JCB (Excavators) | JS110, JS115, JS130, JS145W, JS160, JS160W, JS180, JZ140 |
| Hitachi (Excavators) | EX100-5, EX120-5, EX130H-5, EX135UR, EX135US, EX140US-5, EX150LC-5, EX200K |
| Hitachi (Others) | Dumpers CG45, EG40R; Rollers CP215, RT205; Loaders LX70-3, LX80-5 |
| John Deere | Excavator 120 |
The pump fits machines equipped with Isuzu engines (models 4BD1/T, 4BG1/T, 6BD1, 6BG1). We recommend verification by engine number.
When replacing the water pump, it is also worth replacing the coolant, thermostat, and checking the condition of the V-belt/serpentine belt and tensioner.
Water pump failure leads to rapid engine overheating, which can result in head cracking or engine seizure. If you notice coolant leaking from the pump pulley area, replace it immediately.
The pump forces fluid circulation in the engine block and radiator, removing excess heat.
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No. This pump is designed for older JS machines with Isuzu engines. JCB DieselMax engines have a completely different pump design.
Yes, the pump is supplied with a dedicated paper or metal-rubber gasket (depending on the batch).
Yes, if the machine is equipped with an Isuzu 4BD1 or 4BG1 engine, this pump will be suitable. Fits EX-5 series.
Do you have doubts or need confirmation to avoid costly downtime? Call us. Our experts will help you select the right part to get your equipment back to work as quickly as possible.
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Water pump suitable for JCB JS 115-180 excavators

















