How to remove and install the water passage assembly on Honda Accord?

The water passage is a push type assembly to attach any parts such as thermostat housing, water pump, drivebelt tensioner, air conditioning compressor, alternator, and PCV hose. It is fitted , fixed and is supposed to be sealed against the engine block and can only be opened if there is a leakage. To uninstall it, firstly, pull the cable out, the negative terminal of the battery, secondly, turn off the engine and drain the cooling system. Then, let us have the thermostat out of its housing and then the alternator if you can, and the air conditioning compressor without taking off the lines, and let's fasten it aside. Then the splash shield situated beneath the engine compartment and the intake manifold has to be taken off. Disconnect the pipe connecting the water passage to the water bypass hose and PCV valve and, using spanners, remove the bolts joining the water passage and the engine block and take off the thermostat housing. For installation, it is required that the sealing surface of the water passage is clean, no old gasket material remaining; then, a new O-ring is to be inserted into the groove. RTV sealant must be used to seal the surface between the engine block and water passage, a small amount on the inner threads of the bolt hole. There will be found the water passage and finally screw the bolts up to the recommended torque. The rest steps are vice versa of removing and take at least 3 hours for setting and drying of the RTV sealant before refilling of the cooling system. Last but not the least; add coolant in the cooling system.

Genuine Honda Accord Thermostat Housing

Engine Coolant Thermostat Housing

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41 Thermostat Housings found

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Honda Accord Cover Assembly, Thermostat (Nippon Thermostat)
Part Number: 19310-5A2-A02
$56.77 MSRP: $80.86
You Save: $24.09 (30%)
ADD TO CART
Product Specifications
- Other Name: Thermostat Housing; Thermostat, Water Outlet
- Warranty: This genuine part is guaranteed by Honda's factory warranty.
Fits the following Vehicles:
- 2013-2015 Honda Accord | 2 Door EX, 2 Door EX-L, 2 Door LX-S, 4 Door EX, 4 Door EX-L, 4 Door LX, 4 Door Sport | KA 6MT, KA CVT, KL 6MT, KL CVT
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Honda Accord Case, Thermostat (Nippon Thermostat)
Part Number: 19320-R40-A01
$62.04 MSRP: $87.64
You Save: $25.60 (30%)
ADD TO CART
Product Specifications
- Other Name: Thermostat Housing; Cover
- Warranty: This genuine part is guaranteed by Honda's factory warranty.
Fits the following Vehicles:
- 2008-2012 Honda Accord | 2 Door EX, 2 Door EX-L, 2 Door LX, 2 Door LX-S, 4 Door EX, 4 Door EX (PZEV), 4 Door EX-L, 4 Door EX-L (PZEV), 4 Door LX, 4 Door LX (PZEV), 4 Door SE, 4 Door SE (PZEV) | KA 5AT, KA 5MT, KL 5AT, KL 5MT
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Honda Accord Case, Thermostat (Fuji Seiko)
Part Number: 19320-RAA-A01
$60.35 MSRP: $85.24
You Save: $24.89 (30%)
ADD TO CART
Product Specifications
- Other Name: Thermostat Housing; Cover, Water Inlet
- Replaced by: 19320-RAA-A02
- Warranty: This genuine part is guaranteed by Honda's factory warranty.
Fits the following Vehicles:
- 2011 Honda Accord | 4 Door LX | KA 5AT
- 2003-2009 Honda Accord | 2 Door EX, 2 Door EX-L, 2 Door LX, 2 Door SE, 4 Door DX, 4 Door EX, 4 Door EX (PZEV), 4 Door EX-L, 4 Door EX-L (PZEV), 4 Door LX, 4 Door LX (PZEV), 4 Door SE, 4 Door VP | KA 5AT, KA 5MT, KL 5AT, KL 5MT
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Honda Accord Cover Assembly, Thermo
Part Number: 19315-5G0-A01
$43.11 MSRP: $60.88
You Save: $17.77 (30%)
ADD TO CART
Product Specifications
- Other Name: Thermostat Housing
- Warranty: This genuine part is guaranteed by Honda's factory warranty.
Fits the following Vehicles:
- 2013-2017 Honda Accord | 2 Door EX-L V6, 2 Door Touring (V6), 2 Door TRN-V6, 4 Door EX-L V6, 4 Door Touring (V6) | KA 6AT, KL 6AT
View related parts
Honda Accord Case, Thermostat (Nippon Thermostat)
Part Number: 19320-RAA-A02
$60.35 MSRP: $85.24
You Save: $24.89 (30%)
ADD TO CART
Product Specifications
- Other Name: Thermostat Housing; Water Inlet
- Replaces: 19320-RAA-A01
- Warranty: This genuine part is guaranteed by Honda's factory warranty.
Fits the following Vehicles:
- 2011 Honda Accord | 4 Door LX | KA 5AT
- 2003-2009 Honda Accord | 2 Door EX, 2 Door EX-L, 2 Door EX-SUL, 2 Door LX, 2 Door LX-SUL, 2 Door SE, 4 Door DX, 4 Door EX, 4 Door EX (PZEV), 4 Door EX-L, 4 Door EX-L (PZEV), 4 Door LX, 4 Door LX (PZEV), 4 Door SE, 4 Door VP | KA 5AT, KA 5MT, KL 5AT, KL 5MT
View related parts
Honda Accord Passage, Water
Part Number: 19410-RAA-A00
$148.02 MSRP: $210.85
You Save: $62.83 (30%)
ADD TO CART
Product Specifications
- Other Name: Water Manifold; Water Inlet
- Warranty: This genuine part is guaranteed by Honda's factory warranty.
Fits the following Vehicles:
- 2003-2007 Honda Accord | 2 Door EX, 2 Door EX-L, 2 Door EX-SUL, 2 Door LX, 2 Door LX-SUL, 2 Door SE, 4 Door DX, 4 Door EX, 4 Door EX-L, 4 Door LX, 4 Door SE, 4 Door VP | KA 5AT, KA 5MT, KL 5AT, KL 5MT
View related parts
Honda Accord Cover Assembly, Thermostat
Part Number: 19310-6A0-A01
$45.11 MSRP: $63.72
You Save: $18.61 (30%)
ADD TO CART
Product Specifications
- Other Name: Thermostat, Thermostat Unit, Water Outlet
- Warranty: This genuine part is guaranteed by Honda's factory warranty.
Fits the following Vehicles:
- 2018-2024 Honda Accord | 4 Door EX, 4 Door EX-L, 4 Door LX, 4 Door Sport, 4 Door Touring, EX, EX-L, LX, Sport, Sport SE | KA 6MT, KA CVT
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Honda Accord Case, Thermostat
Part Number: 19320-P0A-010
$57.07 MSRP: $81.29
You Save: $24.22 (30%)
ADD TO CART
Product Specifications
- Other Name: Thermostat Housing; Water Outlet
- Warranty: This genuine part is guaranteed by Honda's factory warranty.
Fits the following Vehicles:
- 1994-2002 Honda Accord | 2 Door EX, 2 Door LX, 2 Door SE, 2 Door Special, 4 Door DX, 4 Door DX-VP, 4 Door EX, 4 Door EX-L, 4 Door EX-SUL, 4 Door EX-UL, 4 Door LX, 4 Door SE, 4 Door SE-UL, 4 Door Special, 4 Door VP, 5 Door EX, 5 Door LX | KA 4AT, KA 5MT, KL 4AT, KL 5MT
View related parts
Honda Accord Passage, Water
Part Number: 19410-5A2-A00
$134.99 MSRP: $192.31
You Save: $57.32 (30%)
ADD TO CART
Product Specifications
- Other Name: Water Manifold; Water Inlet
- Warranty: This genuine part is guaranteed by Honda's factory warranty.
Fits the following Vehicles:
- 2013-2017 Honda Accord | 2 Door EX, 2 Door EX-L, 2 Door LX-S, 4 Door EX, 4 Door EX-L, 4 Door LX, 4 Door SE, 4 Door Sport | KA 6MT, KA CVT, KL 6MT, KL CVT
View related parts
Honda Accord Cover Assembly, Thermostat
Part Number: 19310-5MS-H01
$47.34 MSRP: $66.86
You Save: $19.52 (30%)
ADD TO CART
Product Specifications
- Other Name: Thermostat, Thermostat Unit
- Warranty: This genuine part is guaranteed by Honda's factory warranty.
Fits the following Vehicles:
- 2018-2022 Honda Accord | 4 Door (2.0 Sport), 4 Door (2.0 Touring), 4 Door EX-L (2.0), Sport, Touring | KA 6MT, KA XAT
View related parts
Honda Accord Cover Assembly, Thermostat
Part Number: 19315-5G2-A01
$44.18 MSRP: $62.40
You Save: $18.22 (30%)
ADD TO CART
Product Specifications
- Other Name: Water Outlet; Thermostat
- Warranty: This genuine part is guaranteed by Honda's factory warranty.
Fits the following Vehicles:
- 2013-2017 Honda Accord | 2 Door EX-L V6 | KA 6MT, KL 6MT
View related parts
Honda Accord Case, Thermostat
Part Number: 19320-P0A-000
$44.13 MSRP: $63.97
You Save: $19.84 (32%)
ADD TO CART
Product Specifications
- Warranty: This genuine part is guaranteed by Honda's factory warranty.
Fits the following Vehicles:
- 1994 Honda Accord | 2 Door DX, 2 Door EX, 2 Door LX, 4 Door DX, 4 Door EX, 4 Door LX, 5 Door EX, 5 Door LX | KA 4AT, KA 5MT, KL 4AT, KL 5MT
View related parts
Honda Accord Cover Assembly, Thermostat (Nippon Thermostat)
Part Number: 19310-5A2-A11
$39.52 MSRP: $55.81
You Save: $16.29 (30%)
ADD TO CART
Product Specifications
- Other Name: Thermostat Housing; Thermostat
- Warranty: This genuine part is guaranteed by Honda's factory warranty.
Fits the following Vehicles:
- 2016-2017 Honda Accord | 2 Door EX, 2 Door EX-L, 2 Door LX-S, 4 Door EX, 4 Door EX-L, 4 Door LX, 4 Door SE, 4 Door Sport | KA 6MT, KA CVT, KL CVT
View related parts
Honda Accord Case, Thermostat
Part Number: 19321-5A2-A01
$94.87 MSRP: $134.00
You Save: $39.13 (30%)
ADD TO CART
Product Specifications
- Other Name: Thermostat Housing; Water Inlet
- Warranty: This genuine part is guaranteed by Honda's factory warranty.
Fits the following Vehicles:
- 2013-2017 Honda Accord | 2 Door EX, 2 Door EX-L, 2 Door LX-S, 4 Door EX, 4 Door EX-L, 4 Door LX, 4 Door SE, 4 Door Sport | KA 6MT, KA CVT, KL 6MT, KL CVT
View related parts
Honda Accord Cover Assembly, Thermostat (Fuji Bellows)
Part Number: 19310-5A2-A01
$62.06 MSRP: $87.66
You Save: $25.60 (30%)
ADD TO CART
Product Specifications
- Other Name: Thermostat
- Warranty: This genuine part is guaranteed by Honda's factory warranty.
Fits the following Vehicles:
- 2013 Honda Accord | 4 Door EX, 4 Door LX | KA CVT
View related parts
Honda Accord Passage, Water
Part Number: 19410-R40-A00
$179.12 MSRP: $255.16
You Save: $76.04 (30%)
ADD TO CART
Product Specifications
- Other Name: Water Manifold
- Warranty: This genuine part is guaranteed by Honda's factory warranty.
Fits the following Vehicles:
- 2008-2012 Honda Accord | 2 Door EX, 2 Door EX-L, 2 Door LX, 2 Door LX-S, 4 Door EX, 4 Door EX (PZEV), 4 Door EX-L, 4 Door EX-L (PZEV), 4 Door LX, 4 Door LX (PZEV), 4 Door SE, 4 Door SE (PZEV) | KA 5AT, KA 5MT, KL 5AT, KL 5MT
View related parts
Honda Accord Case, Thermostat
Part Number: 19320-6A0-A01
$83.58 MSRP: $118.06
You Save: $34.48 (30%)
ADD TO CART
Product Specifications
- Other Name: Thermostat Housing
- Warranty: This genuine part is guaranteed by Honda's factory warranty.
Fits the following Vehicles:
- 2018-2020 Honda Accord | 4 Door Sport | KA 6MT
View related parts
Honda Accord Passage, Water
Part Number: 19410-R70-L00
$556.18 MSRP: $802.56
You Save: $246.38 (31%)
ADD TO CART
Product Specifications
- Other Name: Thermostat Housing; Water Manifold
- Warranty: This genuine part is guaranteed by Honda's factory warranty.
Fits the following Vehicles:
- 2008-2012 Honda Accord | 2 Door EX-L V6, 4 Door EX-L V6, 4 Door EX-V6, 4 Door EX-V6 (PZEV) | KA 5AT, KA 6MT, KL 5AT, KL 6MT
View related parts
Honda Accord Passage, Water
Part Number: 19410-RCA-A00
$177.22 MSRP: $290.38
You Save: $113.16 (39%)
ADD TO CART
Product Specifications
- Other Name: Water Manifold
- Warranty: This genuine part is guaranteed by Honda's factory warranty.
Fits the following Vehicles:
- 2003-2007 Honda Accord | 2 Door EX (V6), 2 Door EX V6, 2 Door EX-V6, 4 Door EX (V6) | KA 6MT, KL 6MT
View related parts
Honda Accord Case, Thermostat
Part Number: 19321-6B2-A52
$83.97 MSRP: $118.60
You Save: $34.63 (30%)
ADD TO CART
Product Specifications
- Other Name: Thermostat Housing
- Warranty: This genuine part is guaranteed by Honda's factory warranty.
Fits the following Vehicles:
- 2018-2022 Honda Accord | 4 Door (2.0 Sport), 4 Door (2.0 Touring), 4 Door EX-L (2.0), Sport, Touring | KA XAT

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Honda Accord Thermostat Housing Parts Questions & Experts Answers

Case, Thermostat (Nippon Thermostat)
19320-RAA-A02
Q: How to remove and install the water passage assembly on Honda Accord?
A: The water passage is a push type assembly to attach any parts such as thermostat housing, water pump, drivebelt tensioner, air conditioning compressor, alternator, and PCV hose. It is fitted , fixed and is supposed to be sealed against the engine block and can only be opened if there is a leakage. To uninstall it, firstly, pull the cable out, the negative terminal of the battery, secondly, turn off the engine and drain the cooling system. Then, let us have the thermostat out of its housing and then the alternator if you can, and the air conditioning compressor without taking off the lines, and let's fasten it aside. Then the splash shield situated beneath the engine compartment and the Intake Manifold has to be taken off. Disconnect the pipe connecting the water passage to the water bypass hose and PCV valve and, using spanners, remove the bolts joining the water passage and the engine block and take off the thermostat housing. For installation, it is required that the sealing surface of the water passage is clean, no old gasket material remaining; then, a new O-ring is to be inserted into the groove. RTV sealant must be used to seal the surface between the engine block and water passage, a small amount on the inner threads of the bolt hole. There will be found the water passage and finally screw the bolts up to the recommended torque. The rest steps are vice versa of removing and take at least 3 hours for setting and drying of the RTV sealant before refilling of the cooling system. Last but not the least; add coolant in the cooling system.

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