2011 Honda Civic Cooling System Parts

This table covers the engine coolants and antifreeze formulations specified for this cooling system. Typical signs include a rising temperature gauge, rusty or sludged coolant, or a heater that blows cold. Use the chemistry named in the notes. Mixing silicate, OAT and HOAT formulas can gel in the radiator. Read more

16 Coolant / Antifreeze parts for the 2011 Honda Civic come from 7 brands — PRESTONE, PEAK, VALVOLINE and 4 other brands. The "Popular" part is FVP MV5050GAL. 15 parts fit every engine; the other 1 is engine-specific.

In the Compatible With All Colors grade, PRESTONE supplies 1 part: grouped under the catalog's "Compatible With All Colors" designation — the notes column spells out what sets them apart. A representative part number is PRESTONE AF3055.

The Economy section lists 4 options from FVP, PRESTONE, PEAK and 1 other brand — the catalog's value-priced group. FVP MV5050GAL is listed in this group.

In the Premium grade, PRESTONE and PEAK supply 5 parts: a step above OE specification in materials, tolerances or warranty terms. A representative part number is PRESTONE AF2100.

In the Standard Replacement grade, BECK/ARNLEY, VALVOLINE, AISIN and 2 other brands supply 6 parts: built to original-equipment specification. A representative part number is VALVOLINE 861398.

This table covers the Coolant filler necks. Read more

2 Coolant Filler Neck parts are listed for the 2011 Honda Civic, from DORMAN and MOTORAD. All of them fit every engine offered in the 2011 Civic.

This group includes DORMAN 9025158 and MOTORAD CH3133.

This table covers the hard pipes and extra hoses in the coolant circuit. Read more

3 Coolant Hose / Pipe parts for the 2011 Honda Civic come from 2 brands — DAYCO and CONTINENTAL.

This group includes CONTINENTAL 63706, DAYCO 80393 and DAYCO 80401.

This table covers the seals at the Coolant Hose / Pipe. Typical signs include a wet housing, a drip after sitting, or fluid flung off a rotating shaft. Fix the surface the seal rides on. A new seal on a grooved shaft will leak again. Read more

7 Coolant Hose / Pipe Seal parts are listed for the 2011 Honda Civic, from AJUSA, VICTOR REINZ, APEX and 2 other brands.

Listed part numbers: AJUSA 16022400, AJUSA 16022450 and APEX AWO2317, plus the other parts above.

This table covers the seals at the Coolant Hose Connector / Flange. Typical signs include a wet housing, a drip after sitting, or fluid flung off a rotating shaft. Fix the surface the seal rides on. A new seal on a grooved shaft will leak again. Read more

One part is listed for the 2011 Honda Civic — ELRING 927280.

This table covers the overflow / expansion tanks that hold extra coolant. Read more

4 Coolant Reservoir parts are listed for the 2011 Honda Civic, from DORMAN, GPD, MAHLE / CLEVITE and 1 other brand. All of them fit every engine offered in the 2011 Civic.

This group includes DORMAN 603232, GPD 2411045 and MAHLE / CLEVITE CRT331000S and the remaining parts above.

This table covers the caps on the overflow / expansion tank. Typical signs include a leak at the neck, a cap that will not hold pressure, or a missing tether. Match the pressure rating or thread in the notes — radiator, reservoir and fuel caps are not interchangeable. Read more

3 Coolant Reservoir Cap parts are listed for the 2011 Honda Civic, from CALORSTAT, DORMAN and MOTORAD. All of them fit every engine offered in the 2011 Civic.

Part numbers include CALORSTAT RC0174, DORMAN 54228 and MOTORAD T108.

This table covers the adapters used to pressure-test this cooling system. Read more

3 Cooling System Tester Adapter parts for the 2011 Honda Civic come from 2 brands — MOTORAD and GATES. Every part fits all 4 engine options (1.3L L4 ELECTRIC/GAS, 1.8L L4, 1.8L L4 CNG and 2.0L L4).

Listed part numbers: GATES 31409, MOTORAD 3124 and MOTORAD 3125.

This table covers the radiators that dump engine heat to airflow through the core. Typical signs include overheating in traffic, a wet core, or coolant that disappears with no puddle. Replace the cap if it cannot hold the rated pressure, and bleed the system after the swap. Read more

38 Radiator parts for the 2011 Honda Civic come from 12 brands — NISSENS, TYC, DENSO and 9 other brands. The "Popular" part is CSF 3362. They are grouped as Economy and Standard Replacement, with Standard Replacement the largest group at 12 parts from AGILITY, OSC, UAC and 6 other brands.

This table covers the caps that hold system pressure at the radiator or reservoir neck. Typical signs include a leak at the neck, a cap that will not hold pressure, or a missing tether. Match the pressure rating or thread in the notes — radiator, reservoir and fuel caps are not interchangeable. Read more

6 Radiator Cap parts for the 2011 Honda Civic come from 5 brands — MOTORAD, CSF, GATES and 2 other brands. The "Popular" part is CSF 4514. 5 parts fit every engine; the other 1 is engine-specific.

In the Locking Replacement grade, MOTORAD supplies 1 part: grouped under the catalog's "Locking Replacement" designation — the notes column spells out what sets them apart. A representative part number is MOTORAD ST37.

Standard Replacement: 5 parts, from CSF, GATES, CALORSTAT and 2 other brands. A representative part number is CSF 4514.

This group includes CSF 4514, MOTORAD ST37 and GATES 31412 and the remaining parts above.

This table covers the petcocks used to drain the radiator. Read more

One part is listed for the 2011 Honda Civic — DORMAN 490216.

This table covers the fan assemblies (and clutches, where listed) that pull air through the radiator. Read more

21 Radiator Fan Assembly parts are listed for the 2011 Honda Civic, from UAC, TECHPRO, FOUR SEASONS and 6 other brands. DORMAN 620253 carries the "Popular" badge. 1 part fits every engine; the other 20 are engine-specific.

Economy: 7 parts, from TECHPRO, DORMAN, GPD and 1 other brand. A representative part number is DORMAN 620253.

The Standard Replacement section: 14 options from UAC, FOUR SEASONS, TYC and 2 other brands. FOUR SEASONS 75641 is listed in this group.

This table covers the Radiator Fan motors. Typical signs include no motion, a squeal, or a motor that only runs on one speed. Confirm power, ground and the control module before replacing the motor. Read more

This group shows a single part: ACKOJA A26010026.

This table covers the upper, lower and connecting hoses between radiator, engine and reservoir. Typical signs include swelling, cracks, a soft spot, or a leak at a clamp. Replace adjacent aged hoses while the system is drained — they share the same heat cycle. Read more

21 Radiator Hose parts are listed for the 2011 Honda Civic, from DAYCO, GATES, ACDELCO and 1 other brand. DAYCO 71382 carries the "Popular" badge.

This table covers the Radiator Mount bushings. Typical signs include a clunk over bumps, or a torn or walked-out bushing you can see. Press the new bushing square. A cocked bushing will tear in a few thousand miles. Read more

DORMAN supplies both parts for the 2011 Honda Civic. All of them fit every engine offered in the 2011 Civic.

Part numbers include DORMAN 927240 and DORMAN 927241.

This table covers the Radiator Upper Air Baffle retainers and clips. Read more

2 Radiator Upper Air Baffle Retainer / Clip parts are listed for the 2011 Honda Civic, from DORMAN and SKP. All of them fit every engine offered in the 2011 Civic.

Part numbers include DORMAN 963500 and SKP SK700080.

This table covers the senders that report coolant temperature to the gauge or ECU. Typical signs include a gauge that sits on empty or overheat, or a lamp that does not match what the engine is doing. Rule out the cluster and the wiring before replacing the sender. Read more

31 Temperature Sender / Sensor parts for the 2011 Honda Civic come from 15 brands — STANDARD MOTOR PRODUCTS, HOLSTEIN, FOUR SEASONS and 12 other brands. The "Popular" part is SKP SK5S1529. Grades run from Economy through Standard Replacement; Standard Replacement is the most populated section, led by FOUR SEASONS, STANDARD MOTOR PRODUCTS, WALKER PRODUCTS and 7 other brands.

This table covers the Temperature Sender / Sensor O-rings. Typical signs include a seep at a fitting or a housing that weeps after a service. Lube the new O-ring with the fluid it will see, and do not roll it into the groove. Read more

2 Temperature Sender / Sensor O-Ring parts for the 2011 Honda Civic come from 2 brands — APEX and FEL-PRO. Every part fits all 4 engine options (1.3L L4 ELECTRIC/GAS, 1.8L L4, 1.8L L4 CNG and 2.0L L4).

This group includes APEX AWO2407 and FEL-PRO 72926.

This table covers the thermostats that open the coolant circuit at the specified temperature. Typical signs include slow warm-up, a gauge that climbs in traffic, or heat that never quite arrives. Replace the housing gasket with the thermostat and bleed the system so a trapped air pocket does not cook the new part. Read more

32 Thermostat parts are listed for the 2011 Honda Civic, from MOTORAD, JAPANESE OE, CALORSTAT and 8 other brands. AISIN THH016 carries the "Popular" badge. Economy, Heavy Duty, Performance, Premium and Standard Replacement are all represented, and Standard Replacement alone accounts for 26 parts.