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Poland
HYDRO CZĘŚCI JAKUBIEC SPÓŁKA JAWNA
Kapitałowa 4
35-213 Rzeszów
Call us:
+48 17 229 37 05
NIP: 8133391713

Cooling System – Water Pumps, Thermostats, Radiators

Engine overheating is the most common cause of cylinder head cracks. Ensure optimal operating temperature with components from Azeri Parts, KMP Brand, and Originals (Perkins/JCB). We offer parts for engines:

  • Perkins: 1004, 1104, 1006 series and the popular 400 series (mini excavators).
  • Isuzu: 4HK1, 6HK1, 4JJ1, 4BG1 engines (JCB, Hitachi, Case tracked excavators).
  • JCB & CAT: Dieselmax 444, Ecomax, and CAT 3054/3056.
Water Pumps
Thermostats
Azeri Parts & KMP
Not sure which water pump to choose? Pumps vary by outlet count, pulley shape, and offset. Send a photo of the old pump or engine number – we will find the match.
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COOLING SYSTEM

Water Pumps – Azeri Parts, KMP Brand, Perkins

The heart of the cooling system. We offer water pumps with ceramic seals for extended durability. Our range includes:

  • Water pumps for JCB 3CX/4CX backhoe loaders (V-belt and serpentine belt versions).
  • Pumps for mini excavators (Perkins 400 series, Isuzu).
  • Pump repair kits and mounting gaskets.

Thermostats and Housings

A stuck thermostat is a direct path to engine overheating. We stock thermostats with precise opening temperatures (OEM spec) as well as complete aluminum thermostat housings and water outlets (often corroded in older machines).

Radiators, Fans, and Hoses

Complete system supply. We offer water radiators (for JCB and CAT excavators), viscous fan clutches, fan blades, and reinforced rubber hoses (upper and lower) resistant to high pressure and temperature.

💡 Replacing the water pump?

This is the perfect moment to replace the drive belt. Check the coolant level as well:

Frequently Asked Questions (FAQ)

When to replace the water pump?

The pump should be replaced when leaks are visible from the weep hole ("weeping pump"), bearing noise is heard, or play is felt on the impeller shaft. Preventive replacement is also recommended during a major engine overhaul.

Can I remove the thermostat permanently?

Absolutely not. Running without a thermostat causes the engine to run cold (underheating), increasing fuel consumption and accelerating wear on rings and liners. The engine must operate at optimal working temperature.

Do Azeri Parts pumps fit Isuzu engines?

Yes, Azeri Parts offers a wide range of water pumps dedicated to Isuzu engines (4HK1, 6HK1, 4JJ1) used in JCB, Case, and Hitachi excavators, offering great value for money.

Machine overheating issues?

If replacing the thermostat didn't help, the problem might lie in the pump or radiator. Contact us – we will help diagnose the fault and select the parts.

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