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WATER PUMP  TOYOTA TY16100-78203-71 Aftermarket Replacement Water Pump For Toyota: 16100-78203-71

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Our Price: $216.80


Toyota Forklift Water Pumps - The Best OEM and Aftermarket Parts for Your Lift Truck

Table of Contents

  1. Summary
  2. What is the Main Function of the Water Pump on a Toyota Forklift?
  3. Where Is The Water Pump Located on My Toyota Forklift?
  4. Toyota Forklift Water Pump Main Parts
  5. What are the Symptoms of a Bad Toyota Forklift Water Pump?
  6. How to Prevent Toyota Forklift Water Pump Failure?
  7. Is it Worth Replacing the Water Pump in Toyota Forklift?
  8. Find the Best Toyota Forklift Water Pump at Lift Parts Warehouse
  9. Takeaways


The water pump is an essential part of the Toyota forklift. It helps keep the forklift from overheating by circulating coolant through the entire cooling system. If this component isn't working right, it can rapidly deteriorate different engine parts. To prevent this from happening, it's a good idea to always have a spare on hand. To help you with this task, Lift Parts Warehouse wants to share the information you need to know about Toyota forklift water pumps and what considerations you should have when buying a new replacement.

What is the Main Function of the Water Pump on a Toyota Forklift?

Toyota forklift water pumps help create the pressure needed for the coolant to circulate through the cooling system. The Toyota forklift water pump is a simple centrifugal pump driven by a belt. The pump circulates fluid when the engine is running.

New aftermarket water pump for Toyota lift trucks - part number 16120-23040-71
Water pump for Toyota lift trucks: 16120-23040-71

The water pump uses centrifugal force to push water outwards as it rotates. This action causes fluid to be drawn from the pump's center constantly. The pump inlet is close to the center, so fluid returning from the radiator can hit the pump vanes.

The pump vanes are positioned strategically to fling the fluid out of the pump and into the engine. The fluid flows through the engine block and cylinder head, then goes into the radiator. Finally, it goes back to the pump.

Where Is The Water Pump Located on My Toyota Forklift?

The Toyota Forklift Water Pump is easy to find. It is located at the front of the engine, and it needs direct engine action to work. That is why a belt connects it with the crankshaft. To access it, you will first need to detach the fan from the cooling system.

Schematic representation of the cooling system of a Toyota forklift. it is highlighted where their main parts are located
The water pump is usually found at the front of the engine. Use the hose that goes from the radiator as a guide to find it

Also, remember that water pumps have one hose connecting it to the radiator and another set of hoses connecting it to the engine. You can use these hoses as guides to find the water pump if it is still hard for you to identify.

Toyota Forklift Water Pump Main Parts

When you buy a new water pump for your forklift, it usually comes with its internal components assembled. You will rarely need to change a particular member, as the pump is generally replaced entirely.

However, knowing its main components will give you an idea of how the pump works and its potential vulnerabilities. This information will provide more criteria to determine when the water pump should be replaced before it completely deteriorates.

Toyota forklift water pump cross view showing the location of each of its internal components.
Each internal part of the water pump has its own vulnerabilities

The Hub or Pulley

The water pump's pulley helps to transfer the drive belt's movement to the bearing spindle. The pulley receives engine power and acts as a bridge between the two, controlling how much torque goes through. The pulley is made of strong materials like steel, cast iron, or sheet metal so that they can handle a lot of tension.


It is responsible for receiving the turning force from the pulley and transferring it to the impeller. Without a properly functioning bearing, the water pump will not be able to function properly. There are two main types of bearings commonly used in water pumps: ball bearings and sleeve bearings.

Ball bearings are composed of small balls that rotate between two races, while sleeve bearings utilize a single piece of metal that slides within a cylinder. Both are designed to reduce friction and allow the water pump to operate smoothly.


The body is the basic structure of the water pump that holds the liquid and where all the transferring takes place. It is made of durable materials that can withstand high pressures, and its shape helps ensure that the pump works efficiently. The body also contains several important components, including the impeller and bearings. Each of these parts plays a vital role in the pump's operation, and together they help make sure that the liquid is transferred smoothly and efficiently.


The seal is a crucial component of the water pump. Its primary function is to keep the bearing in the pump free from contamination. This is important because if the bearing becomes contaminated, it will not rotate smoothly and eventually fail. The seal also helps to keep the pump tight, preventing water from leaking out. If there is a leak, the pump will not be able to build up enough pressure to operate correctly, leading to failure.


This is the element that guarantees the water tightness between the pump and the engine block. It can be made from rubber, paper or sheet metal with a rubber coating.


The impeller is a rotor used to increase the pressure and flow of liquid inside a water pump. The impeller consists of a series of blades arranged around a central hub. As the impeller rotates, the blades push the coolant outward from the center, increasing the pressure and flow rate. The impeller is typically made from a durable material such as metal or reinforced plastic, and it is designed to operate at high speeds without requiring excessive maintenance.

What are the Symptoms of a Bad Toyota Forklift Water Pump?

It is very difficult for your water pump to stop working suddenly. As a general rule, if you pay attention, you will be able to catch the signs that indicate that the Toyota forklift water pump is not working correctly. Below we will summarize the most common:

  • Overheating. Overheating is the first sign that your water pump might be failing. But the cooling system does not depend only on the water pump. Before buying a new replacement, make sure that the rest of the cooling components, such as the radiator and the fan, are working correctly.
Typical vehicle temperature indicator, where it showed an overheating condition.
Pay special attention to temperature control instruments. It will be the first indicator that something goes wrong in your cooling systems

  • Coolant Leaks. If the coolant level in the collection tank is below its usual level, it is clear that the coolant is leaking out of your lift truck. If the water pump seals are worn, they become vulnerable points for coolant to leak.
A worn forklift water pump with signs of coolant leak
Coolant leaks through seals and gaskets produce opaque color zones in some areas of the water pump

  • Corroded Water Pump. Toyota forklift water pumps can corrode for several reasons, such as air leaks, a coolant whose properties have expired, or simply the passage of time. When this happens, you might see a change in the body's color. The component might get more and more opaque.
Internal body part of a corroded and rusty forklift water pump
Rust and corrosion accelerate the deterioration of the water pump

  • Whining Noises. The first thing you might notice about a faulty Toyota forklift water pump is its noise. If there is something wrong with the pump's internal parts, like worn bearings, you will hear grinding or rumbling noises. Another possible noising source could be the pump pulley. If its pulley is loose, it will create motion imbalance, leading to internal component damages.
An example of how the worn forklift ball bearings look like
Worn bearings will lead to heavy knocking and snapping noises as a result of mechanical imbalance

If you see any of these symptoms, you will have enough time to take action. If you plan, you will be able to find a replacement for your Toyota forklift water pump without stopping your lift truck activities. Please look at the other parts of the forklift cooling system to learn more.

How to Prevent Toyota Forklift Water Pump Failure?

Most of the causes that lead to your forklift water pump failing are not usually related to the quality of the component itself but rather to operator inattention and lack of regular maintenance. Here are some steps to make your forklift water pump last longer.

  • Keep the coolant level. Make sure to refill the cooling circuit with coolant regularly. If you also rotate the water pump a few times, it will help to make sure that the pump always has liquid inside it. This will help to extend the life of your forklift's water pump.
  • Correct installation of gaskets and seals. Follow the instructions for your water pump model when replacing seals and gaskets. Make sure to use the right amount of sealant - too much can cause parts not to fit together properly, leading to leaks.
  • Completely replace the coolant when it is needed. Remember to completely drain and flush the cooling circuit before installing a new water pump or when planning to perform maintenance. Only use the coolant suggested by Toyota for your specific model.
  • Change the belt at the same time as your water pump. If you are going to install a new water pump on your forklift, it is recommended that you also replace the belt that goes around its pulley. This precaution will help prevent any future problems with the belt and ensure that your forklift water pump runs smoothly.

Is it Worth Replacing the Water Pump in Toyota Forklift?

You may be wondering if it is worth repairing your damaged water pump. The problem may not be that serious, and the parts are relatively cheap. But, if you add up the labor cost and the components needed for the repair, it would be barely less than buying a new one. This is especially true if we talk about a new aftermarket spare.

A technician making a forklift water pump rebuild
Only consider repairing a water pump only if the cost does not exceed 60% of the value of a new one

Find the Best Toyota Forklift Water Pump at Lift Parts Warehouse

If your Toyota forklift water pump is no longer working as it should, it's time to find a new replacement. And there is no better place than Lift Parts Warehouse to get it. We carry a wide selection of water pumps for various models of Toyota lift trucks.

Water pumps are usually affordable, but we understand that each customer has different needs. That is why we offer a wide range of buying possibilities to choose from. You will find OEM and aftermarket water pumps for Toyota forklifts in our online catalog. By simply telling us the year and model of your forklift, our experienced team can help you find the perfect match for your needs.

New aftermarket water pump for Toyota lift trucks - part number 16100-78203-71
Aftermarket water pump for Toyota lift truck: 16100-78203-71

All our products come with a one-year guarantee. You can be sure you're getting a quality product. Plus, thanks to our excellent shipping service, you'll have your order at your doorstep in just a few days.

New aftermarket gasket water pump for Toyota lift trucks - part number 16124-78156-71
Gasket water pump for Toyota lift trucks: 16124-78156-71

Do not miss this opportunity. Keeping your Toyota forklifts in top condition has never been so easy. We invite you to contact our customer service via chat, or if you prefer, you can call us today.


The water pump is an essential part of your Toyota forklift's cooling system. Many other forklift components will stop working as they should if it starts to fail. It's always good to have a spare to prevent this from happening. And there's no better place to find a replacement for your water pump than Lift Parts Warehouse. We have everything you need to keep your Toyota forklift running smoothly for years to come.

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