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Mechanical Water Pump

OEM Automotive Mechanical Water Pumps Manufacturer | 2000+ Engine Cooling Solutions


As a premier automotive mechanical water pump supplier, OkayParts delivers high-performance cooling system components engineered to meet the strictest industry standards. Our water pumps ensure efficient engine temperature regulation, reducing wear and extending vehicle lifespan—trusted by manufacturers, distributors, and repair shops worldwide.

Why Choose Our Mechanical Water Pumps?

At OkayParts, we prioritize quality, compatibility, and customization. Here’s what sets us apart:



Vehicle Compatibility

Our mechanical water pumps are compatible with a wide range of passenger cars, trucks, and commercial vehicles, including (but not limited to):


Contact us with your vehicle model or VIN for exact compatibility.


OEM & Custom Solutions

As a trusted automotive mechanical water pump supplier, we offer end-to-end OEM services to meet your brand’s needs:


Technical Specifications

Our mechanical water pumps are built to perform under extreme conditions, with strict attention to detail:


Quality Assurance

We stand behind our products with rigorous testing and certifications:


What Our Clients Say

"OkayParts has been our go-to automotive mechanical water pump supplier for 5 years. Their OEM matching is precise, and delivery is always on time." — John D., Auto Parts Distributor

"The quality of their water pumps exceeds our expectations. We’ve reduced returns by 30% since switching to OkayParts." — Maria S., Garage Chain


Contact Us

Ready to partner with a reliable automotive mechanical water pump supplier?


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Classification

We Can Provide You with OEM/ODM Solutions

As a professional automotive pump manufacturer, KITAKI Pump provides OEM/ODM services for you.

Obtain Solutions

Automotive Mechanical Water Pump Supplier

OKAYPARTS is one of the leading manufacturers, suppliers and exporters of automotive engine water pumps in China, specializing in automotive water pumps since 2006. We manufacture and supply engine water pumps with the latest equipment and technology for various brands of passenger cars at market leading prices to our valuable customers across the globe.

Business scope

OEM support: Covering the water pump mold database of Volkswagen MQB, Toyota TNGA and other platforms

After-sales market: 2000+ models support accurate matching of VIN codes (including JIS/SAE standard threads)

Special customization: Desert version (anti-sand filter), high-cold version (low-temperature starting torque optimization)

Product technology breakthrough

Impeller innovation:

Carbon fiber reinforced PPA impeller: 60% lighter than traditional steel, resistant to ethylene glycol corrosion

Magnetic drive sealing technology: eliminate shaft seal friction, leakage rate <0.01ml/h (surpassing IP67)

Fast delivery:

Reverse mapping of new model water pumps completed in 15 days (including 3D printing trial installation verification)

Inventory spare parts barcode traceability system

Quality commitment

Each water pump adopts a five-dimensional precision structural system to ensure reliability and life under extreme working conditions:

Heavy-duty combined bearing system

Including deep groove ball bearing and thrust bearing composite structure, preload accurate to ±0.01mm

Nano-ceramic rolling element + self-lubricating coating, through DIN 51524 standard 10,000-hour durability test

Press-fit hub assembly

Interference fit tolerance is controlled at H7/p6 level (IT5 precision), eliminating the risk of axial movement of the pulley

Surface phosphating treatment + micro-arc oxidation, salt spray corrosion resistance up to 1,200 hours (exceeding ASTM B117 requirements)

Precision machined housing

Ductile iron QT500-7 material, CNC five-axis machining center molding, wall thickness tolerance ≤±0.2mm

Integrated labyrinth seal groove design, with triple radial seal ring to achieve IP67 protection level

Combined dynamic seal assembly

Silicon carbide ceramic dynamic ring + fluororubber static ring constitute the main seal, leakage rate <0.001ml/h

Magnetic fluid auxiliary sealing system, compensates for material deformation at extreme temperatures (-40℃~150℃ working condition verification)

Optimal impeller clearance control

CFD fluid dynamics optimizes blade angle (adjustable from 12° to 35°), flow wave Dynamic rate ≤2.5%

Laser measurement and calibration of the impeller-pump casing clearance to ensure the golden efficiency range of 0.15-0.25mm

Quality verification system

100% factory test procedures:

3D scanning comparison (deviation from OE parts <0.05mm)

6,000rpm overspeed dynamic balance test (residual imbalance <1.0g·mm/kg)

Burst pressure test (≥8bar pressure maintenance for 30 minutes without leakage)

Original specifications beyond design:

Reverse engineering is used to crack the patented structure of Bosch/Aisin, etc., and the flow head index is increased by 5-8%

Impeller anti-cavitation performance has passed SAE J2527 standard verification, life is 30% longer than the industry benchmark

Adaptability verification technology:

Digital fitting based on VIN code database (covering 92% of mainstream models worldwide)

Provide 3D model (STEP/IGS format) and real vehicle interference analysis report (accuracy 0.1mm level)

Application scenario enhanced design

High temperature desert version: Add centrifugal sand and dust filter (interception efficiency > 95%)

Extreme cold start version: low temperature pre-lubricated bearing system (-45℃ starting torque ≤3.2N·m)

Hybrid dedicated: CAN bus compatible interface, support PWM precise flow control


Mechanical water pump vs. electronic water pump

Dimensions

Mechanical water pumps

Electronic water pumps

OKAYPARTS solutions

Drive mode

Belt drive (energy consumption accounts for 1.5% of engine power) 

Motor direct drive (independent control) 

Provide low friction pulley (reducing energy consumption by 0.8%)

Control accuracy

Speed is linearly bound to engine

PWM stepless speed regulation (±2% flow error)

Optional electronic bypass valve to achieve flow fine-tuning

Failure mode

Water seal leakage (accounting for 63%) 

Circuit board overheating/impeller slippage

Triple redundant seal + vibration monitoring sensor

Cost structure

Unit price $18-35 (scale advantage)

Unit price $80-200 (including controller)

Compatible with original factory interface, replacement cost reduced by   40%




FREQUENTLY ASKED QUESTIONS

I often order the same product, can I have it shipped automatically on a regular basis?

You can place a package order with us for up to one year, specifying the amount and date you want to ship.

What is the price level?

We believe that our prices are competitive compared to products of the same quality level, as we have been working in this field for over 26 years. We always adhere to the principle of providing high-quality products at competitive prices.

What is your delivery time?

Inventory samples can be sent to you via international express delivery within 3-5 days after receipt

Batch orders can be shipped to you within approximately 60 days after order confirmation (by air or sea)

How to choose the most suitable water pump?

Please tell me your detailed flow rate, pressure, operating time, voltage, application, fluid, ambient temperature, etc. Then I will match you with the most suitable pump, or you can choose the exact model in the product manual.

How to order customized products from OKAYPARTS?

Please contact our sales engineer via email: sales06@kitaki.cn Our well-trained team will assist you in procuring the customized products you need.

How about quality assurance?

For OEM applications, we offer a warranty period from the date of shipment, and we can provide spare parts for replacement. If our product has serious problems, we can provide free replacement.

NEWS CENTER

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