How to remove the Coolant Reservoir assembly on Toyota Prius?

To fit out the heat storage tank of the coolant, check DTCs prior to and after. Take out the back floor boards, the battery and several other covers. Pour the coolant out, unscrew hoses, water pump motor and temperature sensor. Lastly, take off the tank holding it firmly so that the bracket does not bend.

OEM Toyota Prius Coolant Reservoir

Coolant Tank Reservoir

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6 Coolant Reservoirs found

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Toyota Prius Expansion Tank
Part Number: 164A2-37012
$75.83 MSRP: $106.44
You Save: $30.61 (29%)
Ships in 1-2 Business Days
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Product Specifications
- Other Name: Tank, Reserve Sealed Without Cap; Engine Coolant Reservoir; Reservoir; Tank, Reserve Sealed W/O Cap; Coolant Reservoir
- Replaces: 164A2-0T021
- Warranty: This genuine part is guaranteed by Toyota's factory warranty.
Fits the following Vehicles:
- 2016-2020 Toyota Prius | Four, Four Touring, L Eco, LE, Limited, One, Three, Three Touring, Two, Two Eco, XLE | 4 Cyl 1.8 L FULL HYBRID EV-GAS (FHEV)
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Toyota Prius Reserve Tank
Part Number: 164A2-37011
$75.83 MSRP: $106.44
You Save: $30.61 (29%)
Ships in 1-3 Business Days
ADD TO CART
Product Specifications
- Other Name: Engine Coolant Reservoir; Tank, Reserve Sealed W/O Cap; Coolant Reservoir
- Replaced by: 164A2-37012
- Replaces: 164A2-37010
- Warranty: This genuine part is guaranteed by Toyota's factory warranty.
Fits the following Vehicles:
- 2016-2020 Toyota Prius | Four, Four Touring, L Eco, LE, Limited, One, Three, Three Touring, Two, Two Eco, XLE | 4 Cyl 1.8 L FULL HYBRID EV-GAS (FHEV)
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Toyota Prius Expansion Tank
Part Number: 16470-37040
$54.72 MSRP: $76.16
You Save: $21.44 (29%)
Ships in 1-3 Business Days
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Product Specifications
- Other Name: Reserve Tank Assembly, Radiator Reserve; Engine Coolant Reservoir Cap; Engine Coolant Reservoir; Reservoir Tank; Reservoir; Tank Assembly, Radiator Reserve; Coolant Reservoir
- Warranty: This genuine part is guaranteed by Toyota's factory warranty.
Fits the following Vehicles:
- 2021-2023 Toyota Prius | 2020 Edition, L Eco, LE, Limited, XLE | 4 Cyl 1.8 L FULL HYBRID EV-GAS (FHEV), 4 Cyl 2.0 L FULL HYBRID EV-GAS (FHEV)
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Toyota Prius Reserve Tank
Part Number: 16470-21010
$72.87 MSRP: $102.28
You Save: $29.41 (29%)
Ships in 1-3 Business Days
ADD TO CART
Product Specifications
- Other Name: Reserve Tank Assembly, Radiator Reserve; Engine Coolant Reservoir; Tank Assembly, Radiator Reserve; Coolant Reservoir
- Warranty: This genuine part is guaranteed by Toyota's factory warranty.
Fits the following Vehicles:
- 2001-2003 Toyota Prius | Base | 4 Cyl 1.5 L FULL HYBRID EV-GAS (FHEV)
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Toyota Prius Reserve Tank Assembly, Radiator W/O Cap
Part Number: 16480-28080
$236.13 MSRP: $337.15
You Save: $101.02 (30%)
Ships in 1-3 Business Days
ADD TO CART
Product Specifications
- Other Name: Reserve Tank Assembly, Radiator Reserve; Coolant Reservoir
- Warranty: This genuine part is guaranteed by Toyota's factory warranty.
Fits the following Vehicles:
- 2010-2015 Toyota Prius | Base, Five, Four, One, Persona Series, Three, Two | 4 Cyl 1.8 L FULL HYBRID EV-GAS (FHEV)
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Toyota Prius Reserve Tank
Part Number: 16660-21011
$1433.51 MSRP: $2100.82
You Save: $667.31 (32%)
Ships in 1-3 Business Days
ADD TO CART
Product Specifications
- Other Name: Tank Assembly, Coolant Heat Storage; Drive Motor Inverter Coolant Reservoir; Coolant Reservoir
- Replaces: 16660-21010
- Warranty: This genuine part is guaranteed by Toyota's factory warranty.
Fits the following Vehicles:
- 2004-2009 Toyota Prius | Base, Touring | 4 Cyl 1.5 L FULL HYBRID EV-GAS (FHEV)

Toyota Prius Coolant Reservoir

If you're thinking about purchasing OEM parts for your Toyota Prius, our website is your one-stop destination. We stock an extensive selection of genuine Toyota Prius Coolant Reservoir at pocket-friendly prices. Plus, we guarantee a swift delivery and a hassle-free return policy for your convenience.

Toyota Prius Coolant Reservoir Parts and Q&A

Reserve Tank
16660-21011
Q: How to remove the Coolant Reservoir assembly on Toyota Prius?
A: To fit out the heat storage tank of the coolant, check DTCs prior to and after. Take out the back floor boards, the battery and several other covers. Pour the coolant out, unscrew hoses, Water Pump motor and temperature sensor. Lastly, take off the tank holding it firmly so that the bracket does not bend.