• Toyota Prado 150 120 Series KDJ Fuel Filter Water Sensor Switch Genuine - Cerol Auto
  • Toyota Prado 150 120 Series KDJ Fuel Filter Water Sensor Switch Genuine - Cerol Auto
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8446128040 Toyota Prado 150 120 Series KDJ Fuel Filter Water Sensor Switch Genuine

8446128040 Toyota Prado 150 120 Series KDJ Fuel Filter Water Sensor Switch Genuine

€56,95 EUR
€70,95 EUR €56,95 EUR
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SKU: 8446128040, 8446128041--7z7gda

Genuine Toyota Prado 120/150 Series Fuel Filter Water Sensor Switch

Replace your faulty fuel filter water sensor with this genuine Toyota part. This critical sensor monitors water contamination in your diesel fuel filter and alerts you when water needs to be drained, protecting your Prado's fuel injection system from damage.

✓ What This Sensor Does

The fuel filter water sensor switch serves a vital protective function:

  • Detects water in fuel filter - Monitors water accumulation at bottom of filter housing
  • Triggers dashboard warning light - Alerts you when water needs to be drained
  • Protects fuel system - Prevents water from reaching injectors and causing damage

✓ Vehicle Compatibility

This genuine Toyota fuel filter water sensor fits:

Prado 120 Series:

  • KDJ120/KDJ125 (2003-2009) - 1KD-FTV 3.0L Turbo Diesel

Prado 150 Series:

  • KDJ150 (2009-2015) - 1KD-FTV 3.0L Turbo Diesel

Land Cruiser 100 Series:

  • HDJ100/HDJ101 (1998-2007) - 1HD-FTE 4.2L Turbo Diesel

Years: 1998-2015 (depending on model)

Part Numbers: 8446128040 / 8446128041 / 84461-28040

Signs Your Water Sensor Needs Replacement

A faulty fuel filter water sensor will cause:

  • Water warning light always on - Sensor stuck in triggered position
  • No water warning light - Sensor not detecting water accumulation
  • Intermittent warning light - Faulty electrical connection or sensor
  • Check engine light - ECU detecting sensor circuit fault
  • Corroded sensor terminals - Water damage to electrical connections
  • Broken sensor housing - Physical damage from filter changes

Why Choose Genuine Toyota Sensors?

  • Accurate Detection: Precise water level sensing for reliable warnings
  • Correct Fit: Exact OEM specifications for proper sealing
  • Quality Materials: Corrosion-resistant construction for long life
  • Reliable Operation: Consistent performance in all conditions
  • Safety Critical: Water in fuel system can cause expensive injector damage
  • Easy Integration: Plug-and-play with factory wiring

Product Specifications

  • Manufacturer: Toyota (Genuine OEM)
  • Part Numbers: 8446128040 / 8446128041
  • Application: Fuel filter water sensor switch
  • Type: Water detection sensor
  • Condition: Brand New

Installation Notes

Easy DIY installation. Sensor screws into bottom of fuel filter housing. Disconnect electrical connector, unscrew old sensor, screw in new sensor, reconnect electrical connector. Installation typically takes 5-10 minutes. Drain water from fuel filter before replacing sensor. Check for fuel leaks after installation.

Installation Tips

  • Drain water from fuel filter before removing sensor
  • Have a rag ready to catch any fuel spillage
  • Do not overtighten - hand tight plus 1/4 turn is sufficient
  • Ensure O-ring seal is properly seated
  • Clear any fault codes after installation
  • Test warning light operation after installation

Important Maintenance Note

This sensor alerts you when water accumulates in your fuel filter. When the warning light comes on, you must drain the water from the fuel filter immediately. Ignoring this warning can lead to water entering your fuel injection system, causing expensive damage to injectors and fuel pump.

Perfect For:

  • Replacing faulty or corroded water sensors
  • Fixing water warning light issues
  • Fuel filter service and maintenance
  • Protecting fuel injection system from water damage
  • Preventive maintenance during filter changes
  • Restoring proper fuel system monitoring

What's Included

  • 1x Genuine Toyota Fuel Filter Water Sensor Switch (Part 8446128040)
  • O-ring seal (pre-installed)

Shipping & Returns

✓ FREE Worldwide Shipping
✓ Fast dispatch
✓ Secure packaging to ensure safe delivery
✓ 30-day return policy for your peace of mind

Questions about compatibility or installation? Our Prado diesel specialists are here to help. Contact us to confirm this water sensor fits your specific vehicle.

Cerol Auto - Your trusted source for genuine Toyota diesel fuel system components. Protecting your engine from water contamination.

FREE Shipping

SHIPPING

We ship within 3 - 21 business days of receiving cleared payment.



To be eligible for a return, your item must be in the same condition that you received it, unworn or unused, with tags, and in its original packaging. You’ll also need the receipt or proof of purchase.

To start a return, you can contact us 

30 Days hustle-free Returns

RETURNS

We have a 30-day return policy, which means you have 30 days after receiving your item to request a return.

To be eligible for a return, your item must be in the same condition that you received it, unworn or unused, with tags, and in its original packaging. You’ll also need the receipt or proof of purchase.

To start a return, you can contact us 

Satisfaction Guaranteed

We’re committed to your success! If you’re not completely satisfied, we’ll work to make it right — your peace of mind matters to us.

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Quality You Can Trust: Genuine Parts for Optimal Performance and Longevity!

Our authentic parts are specifically designed to fit and perform flawlessly with your vehicle, ensuring safety, durability, and peak performance. Choose genuine for peace of mind, enhanced reliability, and the best value over time.

Perfect Fit and Compatibility 🔩

Genuine parts are engineered to meet the exact specifications of your vehicle, ensuring a seamless fit and optimal performance without modifications.

Optimized Vehicle Performance ⚙️

Designed specifically for your vehicle’s make and model, genuine parts ensure that your engine, transmission, and other systems work at their best, maintaining peak performance and fuel efficiency.

Superior Quality and Durability 🛠️

Made from high-quality materials, genuine parts offer long-lasting performance, helping you avoid frequent replacements and repairs.

3 Proven Benefits of Genuine Parts

  • Reliability You Can Count On

    Genuine parts are rigorously tested to ensure they perform reliably under all conditions, reducing the risk of unexpected breakdowns.

  • Longevity That Saves You Money 💰

    Crafted with high-quality materials, genuine parts last longer than aftermarket alternatives, saving you on replacements and repairs over time.

  • Performance That Meets Manufacturer Standards

    Built to meet the original specifications of your vehicle, genuine parts maintain your car’s performance as intended by the manufacturer, ensuring optimal efficiency and power.

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Freaquently Asked Questions

Are the parts genuine?

Yes, all our parts are 100% genuine. We source them directly from the factory and authorized suppliers, ensuring each part meets the manufacturer’s standards for quality, durability, and compatibility. This way, you can trust that every part is authentic and made specifically for your vehicle.

How long does shipping take for genuine parts?

Shipping times vary depending on your location and part availability, but we use express shipping once shipped within 1-3 weeks

What should I do if my part is damaged or incorrect upon arrival?

In the rare event of receiving a damaged or incorrect part, please contact our support team immediately. We offer hassle-free returns and exchanges to ensure you get the correct, high-quality part you ordered.

Do you provide order tracking for parts shipped?

Yes, once your order is shipped, you’ll receive a tracking number via email. This allows you to monitor your shipment's progress in real time, so you’ll know exactly when to expect your part.