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Pump ZMZ 406: replacement, articles, photos

Pump ZMZ 406: replacement, articles, photos
Pump ZMZ 406: replacement, articles, photos

The owners of the ZMZ 406 engine encountered a water pump leak. This means that the part is time to change. The process itself is quite simple and will require only the necessary tools and minimal design knowledge of the car.

Pump ZMZ 406: replacement process

The process of changing the element on the one hand is simple, on the other hand it will take about 2-2.5 hours. In order for the ZMZ 406 pump to be replaced, a significant part of the car parts will have to be dismantled. As practice shows, water pumps are not repaired, although for the 406th it is possible to change the pulley.

Water pumps ZMZ 406

First, it is worth determining the reasons for removing the product from the car:

  • Leak from under the pump shaft. This means that the sealing properties have been lost and there is play. This is due to the development of the metal part or the wear of the bearing.
  • The ZMZ 406 pump pulley has worn out. In this case, there may be a deformation in which the belt eats. It is easy to confuse this malfunction with shaft deformation.
  • Impeller wear.

The reasons have been identified, and you can proceed directly to the replacement process itself. Firstly,it is recommended to consider a detailed scheme for disassembling and assembling the unit, which is provided by the manufacturer. Secondly, we collect the necessary tools (a set of keys and screwdrivers). Thirdly, the ZMZ 406 engine (pump) is repaired quite easily. To do this, you only need to strictly follow the technology.

Pump ZMZ 406 with Gazelle

Do-it-yourself replacement of the ZMZ 406 pump:

  1. Drain the coolant from the power unit.
  2. We are dismantling the radiator and electric fan.
  3. Remove the belt that turns the auxiliary units.
  4. Loosen and unscrew the pulley mounting bolts.
  5. Dismantle the pulley from the seat.
  6. Weaken the clamps of the pipes for supply and outflow of coolant to the water pump.
  7. Disconnect all clamps.
  8. Unscrew the fasteners and pump bolts.
  9. Unscrew the side bolt securing the pump to the block.
  10. Dismantle the pump from the power unit.
  11. Starting assembly. We check the presence of a sealing gasket in the box with the pump. If there is none, then you need to buy more.
  12. The sealing gasket must be smeared with sealant before installation and only then installed. This will eliminate the chance of a leak.
  13. Install a new pump and tighten all fasteners.
  14. Install the pulley and drive belt.
  15. Connecting pipes.
  16. Replace the radiator and fan.
  17. When everything is assembled, fill the system with coolant. Do not forget to pump to expel the air.
  18. Start the car and let it run for a few minutes. Add antifreeze if necessary to the system.


The ZMZ 406 pump, like all automotive parts, has catalog numbers. The original part number of the water pump can be written in two ways: 4063.1000450-20 or 4061.1307010-21.

When choosing an original part, you should pay attention to whether a car enthusiast buys an original or a fake. The ZMZ 406 pump is always packed in polyethylene with the ZMZ trademark. All seams are soldered and even. The water pump comes with a gasket. The box always has the brand name of the Zavolzhsky Motor Plant, as well as a hologram sticker.

Water pump location

In the original product, inside the box, there is always a warranty sheet, which also contains a set of installation rules, addresses of the factory branches, as well as warranty, return and replacement conditions. The water pump manufactured by the Zavolzhsky Motor Plant always has a special mark on the metal part of the housing.


In addition to the original ZMZ 406 water pump, there are quite a few analogues on the automotive market. At the same time, the quality indicators of parts are not worse, but the cost may be lower. But, most car enthusiasts, when buying, still prefer the original.

Technical characteristics of the ZMZ pump

Let's consider what analogues of the pump can be found:

Manufacturer name



SQ 008










LWP 03061




WP 4061



In addition to the above list, you can purchase a water pump manufactured by Road Map (China). This is the cheapest option, but not of high quality.


Even a novice motorist can replace the ZMZ 406 pump with his own hands. To do this, you must follow the technological process and have a minimum set of tools. After changing the part, it is recommended to check if there is a leak from under the gasket. If this happens, then it is worth removing the pump, re-lubricate with sealant and tighten the fasteners well.

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