How to remove and install a water pump on Mazda 3?

In this step, in order to remove the water pump, begin by removing the battery cover and unplugging the negative battery terminal cable. Take out the cooling system and, on the upper engine cover, pull the cover up by the sides and lift off the mounting posts at the center. Lift the vehicle and put it on jackstands and remove the splash shields. Unscrew the water pump bolts that are used to drive, remove the drivebelt(s) and idler pulley of 2.0L and 2.3L engines, or the idler pulley of 2.5L engines. Secondly, detach the expansion tank mounting screw and place the expansion tank aside. Removal of the water pump pulley, then remover the bolts, which fix the water pump on the engine block and remove the pump. When it becomes stuck, wack it sharply by a soft-faced hammer to unscrew the seal. Clean bolt threads and threaded holes in the engine including all the corrosion and any sealant and remove any remains of the gasket on the sealing surfaces. To install it is important to compare the new pump with the old one then make sure they are the same. Use a thin coating of RTV sealant to hold the new O-ring gasket in place when installing and the gasket must be properly placed on the water pump and the mating surfaces must be clean. Mat the pump carefully to the water pump housing and fit the water pump bolts and set them to the required torque. The rest of the installation is in the opposite sequence of disassembling and when it is done, refill and bleed the cooling system. Lastly, test engine to detect leaks.

Genuine Mazda 3 Water Pump

H2O Pump

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6 Water Pumps found

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Mazda 3 Water Pump Part Number: 1F70-15-100A
$40.00 MSRP: $53.34
You Save: $13.34 (26%)
Ships in 1-2 Business Days
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Product Specifications
- Other Name: Housing, Water Pump; Water Pump, Water Pump Assembly
- Replaces: 1F20-15-010, 1F70-15-010, 1F70-15-100, L3G2-15-100A, L327-15-100, LF01-15-100, L327-15-100A, LF52-15-100A, LF52-15-100, L3G2-15-100
- Warranty: This genuine part is guaranteed by Mazda's factory warranty.
Fits the following Vehicles:
- 2004-2013 Mazda 3 | i, Mazdaspeed, S, SP23 | 4 Cyl 2.0 L GAS, 4 Cyl 2.3 L GAS
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Mazda 3 Water Pump Part Number: P5PW-15-010C
$75.80 MSRP: $101.08
You Save: $25.28 (26%)
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Product Specifications
- Other Name: Pump, Water; Water Pump, Water Pump Assembly
- Replaces: P5PW-15-010A, P5PW-15-010B
- Warranty: This genuine part is guaranteed by Mazda's factory warranty.
Fits the following Vehicles:
- 2019-2024 Mazda 3 | 2.0, 2.5 S, 2.5 Turbo, 2.5 Turbo Premium Plus, Base, Carbon Edition, Preferred, Premium, Select, Select Sport | 4 Cyl 2.0 L GAS, 4 Cyl 2.5 L GAS
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Mazda 3 Water Pump Part Number: PY8W-15-010B
$99.61 MSRP: $132.84
You Save: $33.23 (26%)
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Product Specifications
- Other Name: Pump, Water; Water Pump, Water Pump Assembly
- Replaces: PY8W-15-010A, PY8W-15-010
- Warranty: This genuine part is guaranteed by Mazda's factory warranty.
Fits the following Vehicles:
- 2021-2024 Mazda 3 | 2.5 Carbon Turbo, 2.5 Turbo, 2.5 Turbo Premium Plus | 4 Cyl 2.5 L GAS
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Mazda 3 Water Pump Part Number: PEDD-15-010A
$115.85 MSRP: $154.50
You Save: $38.65 (26%)
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Product Specifications
- Other Name: Pump, Water; Water Pump, Water Pump Assembly
- Replaced by: PE01-15-010D
- Warranty: This genuine part is guaranteed by Mazda's factory warranty.
Fits the following Vehicles:
- 2012-2018 Mazda 3 | Grand Touring, i, i Grand Touring, I Sport, i SV, I Touring, Mazdaspeed, S, s Grand Touring, s Touring, Sport, Touring | 4 Cyl 2.0 L GAS, 4 Cyl 2.3 L GAS, 4 Cyl 2.5 L GAS
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Mazda 3 Water Pump Part Number: PYFA-15-010D
$180.80 MSRP: $241.12
You Save: $60.32 (26%)
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Product Specifications
- Other Name: Pump, Water; Water Pump, Water Pump Assembly
- Replaces: PYFA-15-010C, PYFA-15-010B, PYFA-15-010A
- Warranty: This genuine part is guaranteed by Mazda's factory warranty.
Fits the following Vehicles:
- 2019-2024 Mazda 3 | 2.0, 2.5 S, Base, Carbon Edition, Preferred, Premium, Select, Select Sport | 4 Cyl 2.0 L GAS, 4 Cyl 2.5 L GAS
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Mazda 3 Water Pump Part Number: PX4J-15-711
$595.04 MSRP: $799.95
You Save: $204.91 (26%)
Ships in 1-2 Business Days
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Product Specifications
- Other Name: Pump, Water; Auxiliary Pump, Water Pump
- Warranty: This genuine part is guaranteed by Mazda's factory warranty.
Fits the following Vehicles:
- 2021-2024 Mazda 3 | 2.5 Carbon Turbo, 2.5 Turbo, 2.5 Turbo Premium Plus | 4 Cyl 2.5 L GAS

Mazda 3 Water Pump

The Mazda 3 Water Pump is placed in the centre of the cooling system that pushes the coolant through the system from the radiator to the engine to ensure that the motor does not overheat when in motion. It works much like a continuous circulation pump by drawing chilled fluid out of the radiator and forcing it to circulate through the hot cylinder block and back through the radiator and fan assembly to remove the heat gained. In its absence, the engine would become overheated in a short time, causing severe damage to key components. The fundamental mechanical concept has not changed in any generation of the compact, be it a base, hatchback, or high-performance version, where Mazda operates on the principle of a single impeller being driven by an engine belt to ensure that the coolant flows at the same rate as the engine. Mazda developed Skyactiv technology, which made the body stiffer and fuel injection better, but the job and design of the pump remain the same, which proved the efficiency of the initial idea. Since the component is engaged at all times when the engine is running, its bearings, seal and impeller become worn over time; therefore, owners should be sensitive to any sign of coolant leakage, high temperature, or grinding sounds that indicate the Water Pump is not functioning well. Replacing a worn-out Water Pump with a new one will restore the correct flow and re-establish reliable thermal control to any Mazda 3 out on the road.

Looking for Water Pump with proven quality? Choose OEM Water Pump. Mazda designs and builds them to strict factory specs. Every piece goes through rigorous quality checks. You'll get parts that fit right and work like new. Shop our huge inventory of OEM Mazda 3 parts. Enjoy the highly competitive prices online. Our site is your one-stop shop. Each genuine 3 part includes a manufacturer's warranty. Buy with confidence. Our return policy is simple and hassle-free. In a rush? Choose expedited delivery at checkout. You'll love the streamlined experience from search to checkout to receiving your order.

Mazda 3 Water Pump Parts and Q&A

Water Pump
1F70-15-100A
Q: How to remove and install a water pump on Mazda 3?
A:
In this step, in order to remove the water pump, begin by removing the battery cover and unplugging the negative battery terminal cable. Take out the cooling system and, on the upper engine cover, pull the cover up by the sides and lift off the mounting posts at the center. Lift the vehicle and put it on jackstands and remove the splash shields. Unscrew the water pump bolts that are used to drive, remove the drivebelt(s) and idler pulley of 2.0L and 2.3L engines, or the idler pulley of 2.5L engines. Secondly, detach the expansion tank mounting screw and place the expansion tank aside. Removal of the water pump pulley, then remover the bolts, which fix the water pump on the engine block and remove the pump. When it becomes stuck, wack it sharply by a soft-faced hammer to unscrew the seal. Clean bolt threads and threaded holes in the engine including all the corrosion and any sealant and remove any remains of the gasket on the sealing surfaces. To install it is important to compare the new pump with the old one then make sure they are the same. Use a thin coating of RTV sealant to hold the new O-ring gasket in place when installing and the gasket must be properly placed on the water pump and the mating surfaces must be clean. Mat the pump carefully to the water pump housing and fit the water pump bolts and set them to the required torque. The rest of the installation is in the opposite sequence of disassembling and when it is done, refill and bleed the cooling system. Lastly, test engine to detect leaks.