How to service the Coolant Reservoir system on Toyota Prius?

Service of the coolant reservoir system requires first removing three panels: the rear No. 2 floor board, rear deck floor box, and rear No. 3 floor board. Remove the battery cable negative terminal before letting at least 90 seconds pass to avoid Air Bag and seat belt pretensioner activation. Start by removing the radiator support opening cover followed by engine under covers (LH and RH) together with front bumper cover yet retaining part of the front fender liner LH. Drain the engine coolant through the drain cock plug while being cautious since heat from the reservoir has not fully cooled down. Disassembling the coolant reservoir requires removing two hoses followed by disconnecting water pump motor and temperature sensor connectors before removing the nut and four bolts when securing the Coolant Reservoir tightly to avert bracket deformation. When installing the coolant reservoir assembly begin by clamping the two claws and stud bolt onto the vehicle side and fasten with four bolts and a nut before torquing to 19 Nm (194 kgf-cm, 14 ft. lbs.) while ensuring to press the bracket in front of the vehicle during bolt tightening of 1 and 2. The water pump motor and temperature sensor connectors need to be attached before joining both hoses. Replace all parts by reattaching the negative battery terminal connection then reinstalling the rear No. 3 floor board plus rear deck floor box and rear No. 2 floor board. The service completion includes adding engine coolant and leak detection while placing back the front fender liner LH followed by front bumper cover and engine under covers (RH and LH) and radiator support opening cover. After removing the battery perform initialization because several systems need this step before reconnecting the power supply.

OEM Toyota Coolant Reservoir

Coolant Tank Reservoir

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183 Coolant Reservoirs found

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Toyota Reservoir Assembly Part Number: 16470-03062
$63.39 MSRP: $88.97
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Product Specifications
- Other Name: Reserve Tank Assembly, Radiator Reserve; Engine Coolant Reservoir; Tank Assembly, Radiator Reserve; Coolant Reservoir
Fits the following Toyota Models:
- Solara | 1999-2000 | SE, SLE | 4 Cyl 2.2 L GAS, 6 Cyl 3.0 L GAS
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Toyota Reservoir Assembly Part Number: 16470-03061
$63.39 MSRP: $88.97
You Save: $25.58 (29%)
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Product Specifications
- Other Name: Engine Coolant Reservoir; Tank Assembly, Radiator Reserve; Coolant Reservoir
- Replaced by: 16470-03062
Fits the following Toyota Models:
- Avalon | 1997-1999 | XL, XLS | 6 Cyl 3.0 L GAS
- Camry | 1997-2001 | CE, LE, XLE | 4 Cyl 2.2 L CNG, 4 Cyl 2.2 L GAS, 6 Cyl 3.0 L GAS
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Toyota Reservoir Part Number: 164A2-0T030
$78.20 MSRP: $109.76
You Save: $31.56 (29%)
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Product Specifications
- Other Name: Tank, Reserve Sealed Without Cap; Engine Coolant Reservoir; Tank, Reserve Sealed W/O Cap; Coolant Reservoir
Fits the following Toyota Models:
- Corolla | 2020-2022 | L, LE, SE, SE Nightshade, XLE, XSE | 4 Cyl 1.8 L GAS, 4 Cyl 2.0 L GAS
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Toyota Reservoir Assembly Part Number: 16470-50100
$104.15 MSRP: $146.19
You Save: $42.04 (29%)
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Product Specifications
- Other Name: Reserve Tank Assembly, Radiator Reserve; Engine Coolant Reservoir; Tank Assembly, Radiator Reserve; Coolant Reservoir
Fits the following Toyota Models:
- Land Cruiser | 1998-2007 | Base | 8 Cyl 4.7 L GAS
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Toyota Reservoir Assembly Part Number: 16470-0C011
$118.01 MSRP: $165.65
You Save: $47.64 (29%)
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Product Specifications
- Other Name: Reserve Tank Assembly, Radiator Reserve; Engine Coolant Reservoir; Tank Assembly, Radiator Reserve; Coolant Reservoir
- Replaces: 16470-0C010
Fits the following Toyota Models:
- Tacoma | 1995-2004 | Base, DLX, Limited, Pre Runner, S-Runner, SR5 | 4 Cyl 2.4 L GAS, 4 Cyl 2.7 L GAS, 6 Cyl 3.4 L GAS
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Toyota Reservoir Assembly Part Number: 16470-03081
$62.79 MSRP: $88.14
You Save: $25.35 (29%)
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Product Specifications
- Other Name: Reserve Tank Assembly, Radiator Reserve; Engine Coolant Reservoir; Tank Assembly, Radiator Reserve; Coolant Reservoir
Fits the following Toyota Models:
- Solara | 2000-2003 | SE, SLE | 4 Cyl 2.2 L GAS, 4 Cyl 2.4 L GAS, 6 Cyl 3.0 L GAS
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Toyota Reservoir Part Number: 16480-22020
$272.37 MSRP: $388.88
You Save: $116.51 (30%)
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Product Specifications
- Other Name: Reserve Tank Assembly, Radiator Reserve; Engine Coolant Reservoir; Tank Sub-Assembly, Radiator Reserve; Coolant Reservoir
Fits the following Toyota Models:
- Celica | 2000-2002 | GT, GTS | 4 Cyl 1.8 L GAS
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Toyota Reservoir Part Number: 16480-22050
$279.24 MSRP: $398.69
You Save: $119.45 (30%)
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Product Specifications
- Other Name: Reserve Tank Assembly, Radiator Reserve; Engine Coolant Reservoir; Tank Sub-Assembly, Radiator Reserve; Coolant Reservoir
Fits the following Toyota Models:
- MR2 Spyder | 2000-2005 | Base | 4 Cyl 1.8 L GAS
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Toyota Reservoir Assembly Part Number: 16470-AA020
$56.15 MSRP: $78.16
You Save: $22.01 (29%)
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Product Specifications
- Other Name: Reserve Tank Assembly, Radiator Reserve; Engine Coolant Reservoir; Tank Assembly, Radiator Reserve; Coolant Reservoir
- Replaces: 16470-AA010
Fits the following Toyota Models:
- Camry | 2002-2006 | Base, LE, SE, XLE | 4 Cyl 2.4 L GAS, 6 Cyl 3.0 L GAS, 6 Cyl 3.3 L GAS
- Solara | 2004-2008 | SE, SE Sport, SLE, Sport | 4 Cyl 2.4 L GAS, 6 Cyl 3.3 L GAS
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Toyota Expansion Tank Part Number: 164A2-37012
$78.20 MSRP: $109.76
You Save: $31.56 (29%)
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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
Fits the following Toyota Models:
- C-HR | 2018-2022 | LE, Limited, Nightshade, XLE, XLE Premium | 4 Cyl 2.0 L GAS
- Corolla | 2019-2022 | Hybrid LE, L, LE, SE, SE Apex, SE Nightshade, XLE, XSE, XSE Apex | 4 Cyl 1.8 L FULL HYBRID EV-GAS (FHEV), 4 Cyl 1.8 L GAS, 4 Cyl 2.0 L GAS
- GR Corolla | 2023-2025 | Circuit Edition, Core, Morizo Edition, Premium, Premium Plus | 3 Cyl 1.6 L GAS
- Prius | 2016-2020 | 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)
- Prius AWD-e | 2019-2020 | LE, XLE | 4 Cyl 1.8 L FULL HYBRID EV-GAS (FHEV)
- Prius Prime | 2017-2020 | Advanced, LE, Limited, Plus, Premium, XLE | 4 Cyl 1.8 L PLUG-IN HYBRID EV-GAS (PHEV)
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Toyota Recovery Tank Part Number: 16470-31130
$83.53 MSRP: $117.25
You Save: $33.72 (29%)
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Product Specifications
- Other Name: Reserve Tank Assembly, Radiator Reserve; Engine Coolant Reservoir; Tank Assembly, Radiator Reserve; Coolant Reservoir
Fits the following Toyota Models:
- FJ Cruiser | 2010-2014 | Base | 6 Cyl 4.0 L GAS
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Toyota Tank Assembly, Radiator Reserve Part Number: 16470-0V020
$83.53 MSRP: $117.25
You Save: $33.72 (29%)
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Product Specifications
- Other Name: Reserve Tank Assembly, Radiator Reserve; Coolant Reservoir
Fits the following Toyota Models:
- Avalon | 2013-2018 | Hybrid Limited, Hybrid XLE, Hybrid XLE Plus, Hybrid XLE Premium, Hybrid XLE Touring, Limited, Touring, XLE, XLE Plus, XLE Premium, XLE Touring, XLE Touring SE | 4 Cyl 2.5 L FULL HYBRID EV-GAS (FHEV), 6 Cyl 3.5 L GAS
- Camry | 2012-2017 | Hybrid LE, Hybrid SE, Hybrid XLE, L, LE, SE, SE Sport, Special Edition, XLE, XSE | 4 Cyl 2.5 L FULL HYBRID EV-GAS (FHEV), 4 Cyl 2.5 L GAS, 6 Cyl 3.5 L GAS
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Toyota Reservoir Part Number: 16470-28050
$90.40 MSRP: $126.90
You Save: $36.50 (29%)
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Product Specifications
- Other Name: Reserve Tank Assembly, Radiator Reserve; Engine Coolant Reservoir; Tank Assembly, Radiator Reserve; Coolant Reservoir
Fits the following Toyota Models:
- RAV4 | 2001-2005 | Base, L, Sport | 4 Cyl 2.0 L GAS, 4 Cyl 2.4 L GAS, BATTERY EV (EV/BEV)
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Toyota Reservoir Assembly Part Number: 16470-74360
$88.27 MSRP: $123.91
You Save: $35.64 (29%)
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Product Specifications
- Other Name: Reserve Tank Assembly, Radiator Reserve; Engine Coolant Reservoir; Tank Assembly, Radiator Reserve; Coolant Reservoir
- Manufacturer Note: TYPE B:REFER TO ILLUSTRATION
- Replaces: 16470-74311
Fits the following Toyota Models:
- Camry | 1997-2001 | CE, LE, XLE | 4 Cyl 2.2 L CNG, 4 Cyl 2.2 L GAS
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Toyota Tank Assembly, Radiator Reserve Part Number: 16470-50140
$104.39 MSRP: $146.53
You Save: $42.14 (29%)
Ships in 1-2 Business Days
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Product Specifications
- Other Name: Reserve Tank Assembly, Radiator Reserve; Engine Coolant Reservoir; Coolant Reservoir
Fits the following Toyota Models:
- 4Runner | 2003-2009 | Limited, Sport, SR5 | 6 Cyl 4.0 L GAS, 8 Cyl 4.7 L GAS
- FJ Cruiser | 2007-2009 | Base, Trail Teams Special Edition, TRD Special Edition | 6 Cyl 4.0 L GAS
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Toyota Recovery Tank Part Number: 16470-75030
$118.01 MSRP: $165.65
You Save: $47.64 (29%)
Ships in 1 Business Day
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Product Specifications
- Other Name: Reserve Tank Assembly, Radiator Reserve; Engine Coolant Reservoir; Tank Assembly, Radiator Reserve; Coolant Reservoir
Fits the following Toyota Models:
- 4Runner | 1996-2002 | Base, Limited, SR5 | 4 Cyl 2.7 L GAS, 6 Cyl 3.4 L GAS
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Toyota Reservoir Part Number: 16470-20100
$118.01 MSRP: $165.65
You Save: $47.64 (29%)
Ships in 1-3 Business Days
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Product Specifications
- Other Name: Reserve Tank Assembly, Radiator Reserve; Engine Coolant Reservoir; Tank Assembly, Radiator Reserve; Coolant Reservoir
Fits the following Toyota Models:
- Highlander | 2004-2007 | Base, Limited, Sport | 4 Cyl 2.4 L GAS, 6 Cyl 3.3 L GAS
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Toyota Expansion Tank Part Number: SU003-01185
$43.52 MSRP: $56.34
You Save: $12.82 (23%)
Ships in 1-2 Business Days
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Product Specifications
- Other Name: Tank Reserve; Engine Coolant Reservoir; Cooling Fan Assembly; Reservoir Assembly; Tank Assembly, Radiator Reserve; Coolant Reservoir
Fits the following Toyota Models:
- 86 | 2017-2020 | Base, GT, Hakone Edition, Special Edition, TRD Special Edition | 4 Cyl 2.0 L GAS
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Toyota Tank Assembly, Radiator Reserve Part Number: 16470-66020
$130.41 MSRP: $184.62
You Save: $54.21 (30%)
Ships in 1-3 Business Days
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Product Specifications
- Other Name: Reserve Tank Assembly, Radiator Reserve; Coolant Reservoir
Fits the following Toyota Models:
- Land Cruiser | 1993-1997 | Base | 6 Cyl 4.5 L GAS
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Toyota Expansion Tank Part Number: 16470-03050
$172.36 MSRP: $244.00
You Save: $71.64 (30%)
Ships in 1-3 Business Days
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Product Specifications
- Other Name: Reserve Tank Assembly, Radiator Reserve; Engine Coolant Reservoir; Coolant Reservoir; Tank Assembly, Radiator Reserve
Fits the following Toyota Models:
- Camry | 1994-1996 | DX, LE, XLE | 4 Cyl 2.2 L GAS

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Toyota Coolant Reservoir

OEM parts deliver unmatched quality you can rely on. They pass extensive quality control inspections. Toyota produces them to the official factory specifications. This process helps prevent defects and imperfections. So you can get exceptional lifespan and a flawless fit. Need new OEM Toyota Coolant Reservoir? You'll love our wide selection of genuine options. Shop in minutes and skip the hunt. Our prices are unbeatable, you'll save time and money. It's easy to shop and find the right piece. Our committed customer service team gives professional help from start to finish. Every part includes a manufacturer's warranty. We ship quickly, your parts will arrive fast at your door.

Toyota Coolant Reservoir maintains engine temperatures constant by trapping overflow and pumping coolant back into the engine. Toyota is building its global reputation on unremitting waste-cutting, fast problem-solving, and continuous hybrid innovation and gives drivers cars that drink less fuel, shake off years of hard driver life, and turn corners with unshaken steadiness courtesy of the modular TNGA platform that allows lowering the center of gravity, stiffening the frame, and sharpening the suspension geometry. The updated Hybrid Synergy Drive and the extended-range plug-in models since Prius through RAV4 have demonstrated that the company does not rest, and battery efficiency and smoother regenerative performance have propelled Toyota by progress. The Coolant Reservoir on all gasoline or hybrid engines serves as a breathing space for heated antifreeze, preventing the occurrence of air pockets and coolant loss. On many systems, the pressure-cap expansion design prevents the cracking of the pressure cap that would otherwise be caused by vibration, thus the Toyota owner is not subject to boil-over on mountain passes and the gauge readings are consistent despite stop-go traffic. A well-integrated Coolant Reservoir does not crack under vibration, which would otherwise cause pressure loss. Regular inspections of cracks, low fluid level, or discoloring mix in the Coolant Reservoir detect problems early, and filling to the cold fill line keeps the closed Coolant Reservoir in readiness to undergo thermal expansion, allowing Toyota cooling circuits to circulate liquid with no sucked-in air or untidy spillage.

Toyota Coolant Reservoir Parts and Q&A

Reserve Tank
16660-21011
Q: How to service the Coolant Reservoir system on Toyota Prius?
A:
Service of the coolant reservoir system requires first removing three panels: the rear No. 2 floor board, rear deck floor box, and rear No. 3 floor board. Remove the battery cable negative terminal before letting at least 90 seconds pass to avoid Air Bag and seat belt pretensioner activation. Start by removing the radiator support opening cover followed by engine under covers (LH and RH) together with front bumper cover yet retaining part of the front fender liner LH. Drain the engine coolant through the drain cock plug while being cautious since heat from the reservoir has not fully cooled down. Disassembling the coolant reservoir requires removing two hoses followed by disconnecting water pump motor and temperature sensor connectors before removing the nut and four bolts when securing the Coolant Reservoir tightly to avert bracket deformation. When installing the coolant reservoir assembly begin by clamping the two claws and stud bolt onto the vehicle side and fasten with four bolts and a nut before torquing to 19 Nm (194 kgf-cm, 14 ft. lbs.) while ensuring to press the bracket in front of the vehicle during bolt tightening of 1 and 2. The water pump motor and temperature sensor connectors need to be attached before joining both hoses. Replace all parts by reattaching the negative battery terminal connection then reinstalling the rear No. 3 floor board plus rear deck floor box and rear No. 2 floor board. The service completion includes adding engine coolant and leak detection while placing back the front fender liner LH followed by front bumper cover and engine under covers (RH and LH) and radiator support opening cover. After removing the battery perform initialization because several systems need this step before reconnecting the power supply.