How do you disconnect the cable from the negative battery terminal and drain the cooling system while replacing the thermostat in Honda Civic?

Disconnect the cable from the negative battery terminal and drain the cooling system, saving the coolant if it is in good condition. For a Civic with a 2.4L engine or a 2014 and earlier CR-V, access the thermostat from the underside of the engine compartment by raising the front of the vehicle and removing the under-vehicle splash shield. For a 1.8L Civic or a 2015 and later CR-V, access the thermostat from the top of the engine compartment, removing the PCM and bracket on CR-V models. On 1.8L models, use pliers to squeeze the upper radiator hose clamp, slide it up, and remove the hose, twisting if necessary. Locate the thermostat housing cover by following the lower radiator hose to the engine, then loosen the hose clamp and detach the hose. If the fitting is deteriorated, it may need replacement. On 1.8L models, move the harness bracket out of the way, then remove the thermostat cover bolts and detach the housing cover, tapping it if stuck. Note the jiggle pin's position when removing the thermostat, as it should be at the top. For 2.4L engines, replace the thermostat cover and thermostat as one assembly. Clean all old gasket material from the housing and cover, then install a new rubber seal over the thermostat on 1.8L engines, ensuring proper alignment. For 2.4L engines, install a new O-ring into the housing. Install the thermostat in the housing without sealant, ensuring the jiggle pin is at the top. Install the housing cover or thermostat assembly and tighten the bolts to the specified torque. Reattach the hose and tighten the clamp securely, then reinstall all components removed for access. Refill the cooling system and reconnect the battery. Start the engine, allowing it to reach normal operating temperature, then check for leaks and proper thermostat operation.

Genuine Honda Civic Thermostat

Engine Coolant Thermostat

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28 Thermostats found

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Honda Civic Thermostat Assembly (Nippon Thermostat)
Part Number: 19301-PAA-306
$28.27 MSRP: $58.53
You Save: $30.26 (52%)
ADD TO CART
Product Specifications
- Other Name: Thermostat
- Replaces: 19301-P08-306, 19300-P08-014, 19300-PT0-004, 19300-PH7-004, 19301-P08-315, 19300-P08-003, 19301-P08-316, 19300-PR3-003, 19300-PT0-003, 19301-P08-305, 19301-PAA-305, 19300-PL2-004, 19300-PH7-014, 19300-PR3-004, 19301-P08-000, 19300-PH7-024, 19301-P10-307
- Warranty: This genuine part is guaranteed by Honda's factory warranty.
Fits the following Vehicles:
- 1991-2003 Honda Civic | 2 Door DX, 2 Door EX, 2 Door EX-S, 2 Door HX, 2 Door LX, 2 Door SI, 3 Door CX, 3 Door DX, 3 Door SI, 4 Door DX, 4 Door DX-VP, 4 Door EX, 4 Door GX, 4 Door LX, 5 Door 4WD, 5 Door DX | KA 4AT, KA 5MT, KA CVT, KL 4AT, KL 5MT, KL CVT, KR 5MT, KW 5MT
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Honda Civic Thermostat Assembly (Nippon Thermostat)
Part Number: 19301-RAF-004
$91.68 MSRP: $132.87
You Save: $41.19 (31%)
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Product Specifications
- Other Name: Thermostat; Thermostat Unit
- Replaces: 19301-RAF-003
- Warranty: This genuine part is guaranteed by Honda's factory warranty.
Fits the following Vehicles:
- 2006-2015 Honda Civic | 2 Door SI, 4 Door SI | KA 6MT
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Honda Civic Thermostat Assembly
Part Number: 19301-PNA-003
$95.91 MSRP: $135.47
You Save: $39.56 (30%)
ADD TO CART
Product Specifications
- Other Name: Thermostat
- Warranty: This genuine part is guaranteed by Honda's factory warranty.
Fits the following Vehicles:
- 2002-2005 Honda Civic | 3 Door SI | KA 5MT
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Honda Civic Thermostat Assembly (Nippon Thermostat)
Part Number: 19301-P08-316
$28.27 MSRP: $58.53
You Save: $30.26 (52%)
ADD TO CART
Product Specifications
- Replaced by: 19301-PAA-306
- Warranty: This genuine part is guaranteed by Honda's factory warranty.
Fits the following Vehicles:
- 1991-2000 Honda Civic | 2 Door DX, 2 Door EX, 2 Door EX-S, 2 Door HX, 2 Door SI, 3 Door CX, 3 Door DX, 3 Door SI, 4 Door DX, 4 Door DX-VP, 4 Door EX, 4 Door GX, 4 Door LX, 5 Door 4WD, 5 Door DX | KA 4AT, KA 5MT, KA CVT, KL 4AT, KL 5MT, KL CVT, KR 5MT, KW 5MT
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Honda Civic Thermostat Assembly (Fuji Thompson)
Part Number: 19301-PLC-315
$45.83 MSRP: $65.28
You Save: $19.45 (30%)
ADD TO CART
Product Specifications
- Other Name: Thermostat
- Replaces: 19301-PLC-305
- Warranty: This genuine part is guaranteed by Honda's factory warranty.
Fits the following Vehicles:
- 2001-2005 Honda Civic | 2 Door DX, 2 Door EX, 2 Door HX, 2 Door LX, 4 Door DX, 4 Door DX-VP, 4 Door EX, 4 Door GX, 4 Door LX, 4 Door LX-CAR | KA 4AT, KA 5MT, KA CVT, KL 4AT, KL 5MT, KL CVT
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Honda Civic Thermostat Assembly (Nippon Thermostat)
Part Number: 19301-PZA-305
$41.10 MSRP: $58.55
You Save: $17.45 (30%)
ADD TO CART
Product Specifications
- Other Name: Thermostat
- Replaces: 19301-P07-316, 19301-PWA-305, 19301-P07-A00, 19301-P07-306
- Warranty: This genuine part is guaranteed by Honda's factory warranty.
Fits the following Vehicles:
- 2003-2005 Honda Civic | 4 Door MX (Hybrid) | KA 5MT, KA CVT, KL 5MT, KL CVT
- 1992-1995 Honda Civic | 3 Door VX | KA 5MT, KL 5MT
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Honda Civic Thermostat Assembly
Part Number: 19301-RMX-306
$57.81 MSRP: $82.35
You Save: $24.54 (30%)
ADD TO CART
Product Specifications
- Other Name: Thermostat
- Warranty: This genuine part is guaranteed by Honda's factory warranty.
Fits the following Vehicles:
- 2006-2011 Honda Civic | 4 Door MX (Hybrid) | KA CVT
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Honda Civic Thermostat Assembly
Part Number: 19301-P07-A00
$41.10 MSRP: $58.55
You Save: $17.45 (30%)
ADD TO CART
Product Specifications
- Other Name: Thermostat
- Replaced by: 19301-PZA-305
- Warranty: This genuine part is guaranteed by Honda's factory warranty.
Fits the following Vehicles:
- 1992-1993 Honda Civic | 3 Door VX | KA 5MT, KL 5MT
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Honda Civic Thermostat Assembly (Fuji Seiko)
Part Number: 19301-RNA-315
$56.92 MSRP: $81.08
You Save: $24.16 (30%)
ADD TO CART
Product Specifications
- Other Name: Thermostat; Thermostat Unit
- Replaces: 19301-RNA-306, 19301-RNA-305
- Warranty: This genuine part is guaranteed by Honda's factory warranty.
Fits the following Vehicles:
- 2006-2015 Honda Civic | 2 Door DX, 2 Door EX, 2 Door EX-L, 2 Door LX, 4 Door DX, 4 Door EX, 4 Door EX-L, 4 Door GX, 4 Door HF, 4 Door LX, 4 Door LX (AT), 4 Door LX-S | KA 5AT, KA 5MT, KA CVT, KL 5AT, KL CVT
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Honda Civic Thermostat Set
Part Number: 06193-59B-306
$35.60 MSRP: $73.70
You Save: $38.10 (52%)
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Product Specifications
- Other Name: Thermostat
- Warranty: This genuine part is guaranteed by Honda's factory warranty.
Fits the following Vehicles:
- 2016-2021 Honda Civic | 2 Door EX, 2 Door EX (Turbo), 2 Door EX (Turbo/6MT), 2 Door EX (Turbo/CVT), 2 Door SI, 2 Door Touring, 2 Door Touring (Turbo), 4 Door EX, 4 Door EX (Turbo), 4 Door EX-T, 4 Door EX-TA, 4 Door EX-TL, 4 Door EX-TLA, 4 Door SI, 4 Door Touring, 4 Door Touring (Turbo), 5 Door EX, 5 Door EX-L, 5 Door LX, 5 Door SE, 5 Door Sport | KA 6MT, KA CVT, KL CVT
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Honda Civic Thermostat Assembly (Nippon Thermostat)
Part Number: 19301-REA-305
$58.32 MSRP: $82.37
You Save: $24.05 (30%)
ADD TO CART
Product Specifications
- Other Name: Thermostat
- Warranty: This genuine part is guaranteed by Honda's factory warranty.
Fits the following Vehicles:
- 2004-2005 Honda Civic | 2 Door DX, 2 Door EX, 2 Door HX, 2 Door LX, 4 Door DX, 4 Door DX-VP, 4 Door EX, 4 Door GX, 4 Door LX, 4 Door LX-CAR | KA 4AT, KA 5MT, KA CVT
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Honda Civic Cover Assembly, Thermostat
Part Number: 19310-6A0-A01
$62.06 MSRP: $87.65
You Save: $25.59 (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:
- 2022-2023 Honda Civic | EX, EX-L, Si, Sport Touring, Touring
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Honda Civic Cover Assembly, Thermo
Part Number: 19310-5BF-G01
$46.95 MSRP: $66.32
You Save: $19.37 (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:
- 2023 Honda Civic | Type R
- 2017-2021 Honda Civic | 5 Door Touring LE, 5 Door Type R, 5 Door Type R (Touring) | KA 6MT
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Honda Civic Thermostat Unit
Part Number: 19300-611-005
$37.67 MSRP: $53.20
You Save: $15.53 (30%)
ADD TO CART
Product Specifications
- Replaces: 19300-657-003
- Warranty: This genuine part is guaranteed by Honda's factory warranty.
Fits the following Vehicles:
- 1973-1979 Honda Civic | 2 Door (1200), 2 Door (1500), 2 Door **, 3 Door (1200), 3 Door (1500), 3 Door **, 5 Door ** | ** 4MT, ** HMT, KA 4MT, KA 5MT, KA HMT, KH 4MT, KH 5MT, KH HMT, KL 4MT, KL 5MT, KL HMT
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Honda Civic THERMOSTAT SET
Part Number: 06193-59B-305
$50.26 MSRP: $70.98
You Save: $20.72 (30%)
ADD TO CART
Product Specifications
- Other Name: Thermostat
- Warranty: This genuine part is guaranteed by Honda's factory warranty.
Fits the following Vehicles:
- 2020 Honda Civic | 4 Door EX, 4 Door EX (Turbo), 4 Door Touring (Turbo) | KA CVT, KL CVT
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Honda Civic Thermostat
Part Number: 38660-692-660
$27.18 MSRP: $38.38
You Save: $11.20 (30%)
ADD TO CART
Product Specifications
- Replaces: 38660-692-661
- Warranty: This genuine part is guaranteed by Honda's factory warranty.
Fits the following Vehicles:
- 1980-1983 Honda Civic | 3 Door (1300), 3 Door (1500), 3 Door DX, 3 Door FE (1300), 3 Door GL (1500), 3 Door S, 4 Door (1500), 5 Door (Wagovan), 5 Door ** | KA 4MT, KA 5MT, KA HMT, KH 4MT, KH 5MT, KH HMT, KL 4MT, KL 5MT, KL HMT
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Honda Civic Thermostat Assembly (Nippon Thermostat)
Part Number: 19301-RP3-305
$56.75 MSRP: $80.15
You Save: $23.40 (30%)
Product Specifications
- Other Name: Thermostat
- Warranty: This genuine part is guaranteed by Honda's factory warranty.
Fits the following Vehicles:
- 2012-2015 Honda Civic | 4 Door MX, 4 Door MX (Hybrid) | KA CVT, KL CVT
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Honda Civic Thermostat Unit (82)
Part Number: 19300-PB2-014
Product Specifications
- Replaced by: 19300-PB2-023
- Warranty: This genuine part is guaranteed by Honda's factory warranty.
Fits the following Vehicles:
- 1981-1983 Honda Civic | 4 Door (1500) | KA 5MT, KA HMT, KH 5MT, KH HMT, KL 5MT, KL HMT
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Honda Civic Thermostat Unit
Part Number: 19300-PB2-813
Product Specifications
- Replaced by: 19300-PB2-817
- Warranty: This genuine part is guaranteed by Honda's factory warranty.
Fits the following Vehicles:
- 1981-1983 Honda Civic | 4 Door (1500) | KA 5MT, KA HMT, KH 5MT, KH HMT, KL 5MT, KL HMT
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Honda Civic Thermostat Unit (Fuji Seiko)
Part Number: 19300-PB2-815
Product Specifications
- Replaced by: 19300-PB2-817
- Warranty: This genuine part is guaranteed by Honda's factory warranty.
Fits the following Vehicles:
- 1981-1983 Honda Civic | 4 Door (1500) | KA 5MT, KA HMT, KH 5MT, KH HMT, KL 5MT, KL HMT
- 1975-1979 Honda Civic | 2 Door (1500), 2 Door **, 3 Door (1500), 3 Door **, 5 Door ** | KA 4MT, KA 5MT, KA HMT, KH 4MT, KH 5MT, KH HMT, KL 4MT, KL 5MT, KL HMT

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1-20 of 28 Results

Honda Civic Thermostat

The Civic's thermostat primarily belongs to the car's cooling system where it mainly functions to control temperature on the engine. This is normally situated close to the radiator as can be seen to be a mechanical component that regulates the circulation of the coolant and thereby regulates the temperature of the engine. In the previous years, thermostats used in Honda Civic cars have been of the bimetallic and even wax pellet type. These types of thermostats work on the principle of expanding or collapsing by will and reduce/ increase the temperature in the process of cooling the engine. A thermostat also acts as a controller of the flow of the liquid to the cooling part of the car's cooling system, therefore, when the thermostat is faulty, it becomes extremely crucial to replace it in order to restore efficiency and reliability of the car model, such as Honda Civic.

In search of affordable OEM Honda Civic Thermostat? Consider browsing through our extensive inventory of genuine Honda Civic Thermostat. Not only do we provide market-leading prices and a manufacturer's warranty, but we also pride ourselves on exceptional customer service and swift delivery.

Honda Civic Thermostat Parts Questions & Experts Answers

Thermostat Assembly (Fuji Seiko)
19301-RNA-315
Q: How do you disconnect the cable from the negative battery terminal and drain the cooling system while replacing the thermostat in Honda Civic?
A:
Disconnect the cable from the negative battery terminal and drain the cooling system, saving the coolant if it is in good condition. For a Civic with a 2.4L engine or a 2014 and earlier CR-V, access the thermostat from the underside of the engine compartment by raising the front of the vehicle and removing the under-vehicle splash shield. For a 1.8L Civic or a 2015 and later CR-V, access the thermostat from the top of the engine compartment, removing the PCM and bracket on CR-V models. On 1.8L models, use pliers to squeeze the upper radiator hose clamp, slide it up, and remove the hose, twisting if necessary. Locate the thermostat housing cover by following the lower radiator hose to the engine, then loosen the hose clamp and detach the hose. If the fitting is deteriorated, it may need replacement. On 1.8L models, move the harness bracket out of the way, then remove the thermostat cover bolts and detach the housing cover, tapping it if stuck. Note the jiggle pin's position when removing the thermostat, as it should be at the top. For 2.4L engines, replace the thermostat cover and thermostat as one assembly. Clean all old gasket material from the housing and cover, then install a new rubber seal over the thermostat on 1.8L engines, ensuring proper alignment. For 2.4L engines, install a new O-ring into the housing. Install the thermostat in the housing without sealant, ensuring the jiggle pin is at the top. Install the housing cover or thermostat assembly and tighten the bolts to the specified torque. Reattach the hose and tighten the clamp securely, then reinstall all components removed for access. Refill the cooling system and reconnect the battery. Start the engine, allowing it to reach normal operating temperature, then check for leaks and proper thermostat operation.