TOYOTA 16A10-77031 Mirai Hydrogen Fuel Pump Cell Water 340.TO1R17

( Model: MIRAI ), ( Part Type: Fuel Pump Cell ), ( Conditions Options: Fuel Cell Water Pump ), ( Genuine Oem: Yes ), ( Ipn: 340.to1r17 ), ( Descriptionpartcondition: 2017 Toyota Mirai Hydrogen Fuel Cell Water Pump 16a10-77031 Fe ), ( Warranty: 60 Day )

Review TOYOTA Mirai Hydrogen Fuel Cell Water Pump fits 340 2017

The **Toyota Mirai (2017) Hydrogen Fuel Cell Water Pump (Part # 16A10-77031)** is a precision-engineered component designed exclusively for Toyota s pioneering hydrogen fuel cell vehicle, the Mirai, which debuted in 2015 as a groundbreaking example of sustainable automotive technology. This water pump, identified by its unique **OEM part number TO1R17**, plays a critical role in the Mirai s advanced cooling and thermal management systems, ensuring optimal performance and longevity of the vehicle s high-pressure hydrogen fuel cell stack and associated components. Crafted from durable, corrosion-resistant materials, the pump is engineered to withstand the demanding operating conditions of a hydrogen-powered powertrain, where efficiency and reliability are paramount. Its compact yet robust design integrates a high-performance impeller and a sealed electric motor, delivering consistent water circulation to regulate temperatures within the fuel cell system, the battery, and the vehicle s auxiliary cooling loops. The pump s integration with the Mirai s hybrid-like thermal management strategy where waste heat is recycled to enhance energy efficiency demonstrates Toyota s commitment to reducing emissions while maintaining cutting-edge automotive engineering. Whether replacing a worn-out unit or upgrading during routine maintenance, this water pump is a vital part of preserving the Mirai s performance, safety, and environmental credentials, embodying the fusion of innovation and practicality that defines Toyota s leadership in hydrogen fuel cell technology.

### **Pros and Cons of Buying a Toyota Mirai (2017) Water Pump (Part No. 16A10-77031)**

1. **OEM Compatibility** The water pump is an original Toyota part, ensuring a perfect fit and reliable performance with the 2017 Mirai s hydrogen fuel cell cooling system. Using an aftermarket or non-genuine part could risk compatibility issues or premature failure.

2. **Reliability** Toyota s fuel cell vehicles, including the Mirai, rely on precise cooling systems to manage hydrogen fuel cell temperatures. A genuine water pump reduces the risk of overheating or system malfunctions, which could lead to costly repairs or even safety hazards.

3. **Warranty Coverage** If the water pump fails due to manufacturing defects, Toyota s original equipment manufacturer (OEM) part may still qualify for warranty coverage, depending on the vehicle s service history. Aftermarket parts often void warranties or lack such protections.

4. **Long-Term Durability** Toyota s fuel cell technology is designed for longevity, and using genuine parts helps maintain the integrity of the system. A failing water pump in a hydrogen vehicle could disrupt fuel cell operation, potentially leading to reduced efficiency or shutdowns.

5. **Ease of Installation** Since it s an OEM part, installation should be straightforward, with clear instructions and minimal risk of improper fitting. Aftermarket parts may require additional modifications or adjustments.

6. **Support for Hydrogen Infrastructure** The Mirai is part of Toyota s push toward hydrogen fuel cell adoption. Using genuine parts supports the long-term viability of hydrogen vehicles and their infrastructure, which may be important for fleet operators or early adopters.

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1. **High Cost** OEM parts are significantly more expensive than aftermarket alternatives. The water pump for a 2017 Mirai will likely cost several hundred dollars, making repairs or replacements a major upfront expense.

2. **Limited Availability** Toyota s fuel cell vehicles are rare, and OEM parts may not be as widely stocked as parts for mass-market Toyota models. This could lead to longer wait times for delivery or require ordering through specialized suppliers.

3. **Potential Overkill for Minor Issues** If the water pump failure is due to a minor issue (e.g., a seized bearing from contamination rather than a systemic problem), replacing it with an OEM part may be excessive. In such cases, a high-quality aftermarket part could suffice at a lower cost.

4. **Complexity of Hydrogen Systems** The Mirai s fuel cell and cooling system are advanced, and diagnosing water pump failures may require specialized knowledge. A non-expert mechanic might misdiagnose the issue, leading to unnecessary OEM part replacements.

5. **Environmental and Ethical Considerations** While hydrogen is a clean fuel, the production and disposal of OEM parts contribute to broader environmental impacts. Some buyers may prefer aftermarket parts to reduce their carbon footprint, though this depends on the sourcing of those parts.

6. **Resale Value Impact** If the Mirai has a known water pump issue, replacing it with an OEM part could improve its resale value by restoring reliability. However, if the vehicle has other unresolved problems, the repair may not fully justify the cost.

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- You prioritize **long-term reliability** and **system integrity** for your hydrogen fuel cell vehicle.

- The failure is confirmed to be related to the water pump (not a broader cooling system issue).

- You have access to **Toyota-authorized parts suppliers** or are willing to pay for expedited shipping.

- The cost is justified by the vehicle s **resale value, warranty coverage, or critical role in operation** (e.g., fleet use).

- The water pump failure is **minor or intermittent**, an **aftermarket part from a reputable brand** (e.g., Denso, Gates, or a Toyota-compatible alternative) could be a cost-effective solution.

- You lack **specialized diagnostic tools** or expertise to confirm the issue, consulting a **Toyota hydrogen vehicle specialist** first may save money.

- The vehicle is **not a high-mileage or critical asset**, weighing the repair cost against the Mirai s **declining resale value** in the hydrogen market may be prudent.

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1. **Verify the Diagnosis** Before purchasing the OEM part, confirm that the water pump is indeed the root cause of the issue. Hydrogen fuel cell systems can have complex cooling dynamics, and other components (e.g., thermostats, seals, or electrical controls) may be contributing.

- The **OEM water pump (16A10-77031)** from Toyota or an authorized dealer.

- A **high-quality aftermarket alternative** (e.g., a Denso or Gates pump with Toyota compatibility).

- **Labor costs** for installation, as some mechanics charge premium rates for hydrogen vehicle repairs.

3. **Consider Extended Warranty or Fleet Programs** If you own multiple Mirais or use the vehicle commercially, Toyota s **fleet service programs** or **extended warranties** may cover water pump replacements, reducing out-of-pocket expenses.

4. **Explore Toyota s Recall or TSB Coverage** Check if the water pump failure is part of a **known Toyota Technical Service Bulletin (TSB)** or recall. Toyota may offer **free or discounted replacements** for documented issues.

5. **Proceed with OEM if Critical** If the water pump failure risks **permanent damage to the fuel cell stack** or **voids safety certifications**, the OEM part is the safest choice. Otherwise, a vetted aftermarket part may offer a balance of cost and reliability.

For **individual owners or operators with critical Mirai vehicles**, the **OEM water pump is the recommended choice** due to its reliability and compatibility. For **casual owners or those with budget constraints**, a **high-quality aftermarket part** (with proper research) could be a viable alternative **but only after confirming the diagnosis and consulting a hydrogen vehicle specialist**. Always prioritize parts that meet or exceed Toyota s specifications to avoid voiding warranties or compromising performance.

Details:

Standard Warranty. FUEL CELL WATER PUMP 16A10-77031.

part #: 16a10-77031 prices

• $284.99-$348.68

specifications fueltanksysteme:

• for makes: Toyota
• model: Mirai
• part type: Fuel Pump Cell
• conditions options: Fuel Cell Water Pump
• genuine oem: Yes
• ipn: 340.to1r17
• descriptionpartcondition: 2017 Toyota Mirai Hydrogen Fuel Cell Water Pump 16a10-77031 Fe
• warranty: 60 Day

returns fueltanksysteme:

• policy: Returns Accepted
• time: 60 Days
• paid by: Buyer

shipping fueltanksysteme:

• type: Fixed
• cost: $30.00
• transit: 2-6 Days
• service: Standard
• class: Standard

general fueltanksysteme:

• condition: Used
• Auto Permance Parts > Fuel Systems > Fuel Cells

payments fueltanksysteme:

• other
• credit card: Visa
• wallet: Apple-pay

seller fueltanksysteme:

• city: Rancho Cordova, California
• rating: 99.2%
• # reviews: 352

offer fueltanksysteme:

• quantity: 1
• options: Ship-to-home
• started: March 18, 2026
• availability: In Stock
• best offers: True
• sold: 0

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