2021 Honda Civic Cooling System Service Parts
64 parts verified to fit your 2021 Honda Civic for a complete cooling system service. A moderate DIY project — estimated 2-4 hours.
Cooling Parts
(19)primary
Fel-Pro
Fel-Pro 16-21 Honda Civic/07-14 Fit/07-14 CR-V Engine Coolant Temperature Sensor O-Ring
$2.59
Mishimoto
Mishimoto 2016+ Honda Civic 1.5T Black Silicone Coolant Hose Kit
$137.16
Mishimoto
Mishimoto 2017+ Honda Civic Type R Silicone Hose Kit - Black
$170.96
Mishimoto
Mishimoto 2017+ Honda Civic Type R Secondary Race Radiator
$614.35
Fel-Pro
Fel-Pro Honda CR-V 36158 Engine Coolant Thermostat Gasket
$3.65
Mishimoto
Mishimoto 2017+ Honda Civic Type R Aluminum Expansion Tank - Black
$330.70
Victor Reinz
MAHLE Original Acura CSX 10-07 Thermostat Housing Gasket
$3.11
Mishimoto
Mishimoto 2017+ Honda Civic Type R Direct Fit Oil Cooler Kit - Silver
$732.11
Coolant & Fluids
(45)consumable
Royal Purple
Royal Purple Premium Synthetic High Performance Multi-Grade 0W20 Motor Oil - 6 Gallon Bag-In-Box
$191.53
LIQUI MOLY
LIQUI MOLY 1L Top Tec ATF 1400
$86.14
LIQUI MOLY
LIQUI MOLY 1L Brake Fluid DOT 4
$66.14
LIQUI MOLY
LIQUI MOLY 205L Special Tec AA Motor Oil SAE 0W20
$1319.63
K&N
K&N 03-07 Mitsubishi Lancer Wrench-Off Oil Filer
$17.99
LIQUI MOLY
LIQUI MOLY 5L Special Tec LR Motor Oil SAE 0W20
$247.94
Royal Purple
Royal Purple Synthetic High Performance 0W20 Motor Oil (Canada) - 1 Quart
$59.94
LIQUI MOLY
LIQUI MOLY 5L Special Tec V Motor Oil SAE 0W20
$209.96
Cooling System Service for Other Honda Civic Years
Other Jobs for Your 2021 Honda Civic
Frequently Asked Questions
What parts do I need for a cooling system service on my 2021 Honda Civic?
A complete cooling system service on the 2021 Honda Civic typically requires cooling parts, coolant & fluids. All parts shown on this page are verified to fit your specific vehicle.
How long does a cooling system service take on a 2021 Honda Civic?
A cooling system service typically takes 2-4 hours and is rated as moderate difficulty. Actual time may vary depending on your experience and the specific parts being replaced.
Can I do a cooling system service myself?
A cooling system service is a moderate DIY project. If you have some mechanical experience and the right tools, you can handle it. Otherwise, consider having a professional do the work.
Are these parts guaranteed to fit my 2021 Honda Civic?
Yes, all parts on this page are verified to fit the 2021 Honda Civic using VCDB fitment data from manufacturers. Our fitment information is cross-referenced with industry-standard vehicle databases to ensure accuracy.
What brands make cooling system service parts for the 2021 Honda Civic?
We carry cooling system service parts from trusted brands including Fel-Pro, Mishimoto, Victor Reinz, Radium Engineering, and Royal Purple. Filter by brand to find your preferred manufacturer.
How much does a cooling system service cost for a 2021 Honda Civic?
The cost of a cooling system service for the 2021 Honda Civic depends on the parts and brands you choose. Browse the parts on this page to see current pricing. Doing the work yourself saves significantly on labor costs.