2012 Honda Insight 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

15 Coolant / Antifreeze parts are listed for the 2012 Honda Insight, from PRESTONE, PEAK, BECK/ARNLEY and 4 other brands. FVP MV5050GAL carries the "Popular" badge.

The Compatible With All Colors section lists 1 option from PRESTONE — grouped under the catalog's "Compatible With All Colors" designation — the notes column spells out what sets them apart. PRESTONE AF3055 is listed in this group.

In the Economy grade, FVP, PEAK and PRESTONE supply 3 parts: the catalog's value-priced group. A representative part number is FVP MV5050GAL.

The Premium section lists 5 options from PRESTONE and PEAK — a step above OE specification in materials, tolerances or warranty terms. PRESTONE AF2100 is listed in this group.

The Standard Replacement section lists 6 options from BECK/ARNLEY, VALVOLINE, AISIN and 2 other brands — built to original-equipment specification. VALVOLINE 861398 is listed in this group.

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

2 Coolant Hose / Pipe parts are listed for the 2012 Honda Insight, from CONTINENTAL and DAYCO.

This group includes CONTINENTAL 63156 and DAYCO 70944.

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

4 Coolant Hose / Pipe Seal parts for the 2012 Honda Insight come from 3 brands — AJUSA, MAHLE / CLEVITE and VICTOR REINZ.

This group includes AJUSA 16022400, AJUSA 16022450 and MAHLE / CLEVITE C32870 and the remaining parts above.

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

3 Coolant Reservoir parts for the 2012 Honda Insight come from 3 brands — DORMAN, GPD and TECHPRO.

This group includes DORMAN 603075, GPD 2411014 and TECHPRO HO3014149.

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 for the 2012 Honda Insight come from 3 brands — CALORSTAT, DORMAN and MOTORAD.

This group includes CALORSTAT RC0174, DORMAN 54228 and MOTORAD T108.

This table covers the Cooling Fan control modules. Read more

3 Cooling Fan Control Module parts for the 2012 Honda Insight come from US MOTOR WORKS.

This group includes US MOTOR WORKS 16749, US MOTOR WORKS 16789 and US MOTOR WORKS 16795.

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

3 Cooling System Tester Adapter parts are listed for the 2012 Honda Insight, from MOTORAD and GATES.

This group includes 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

6 Radiator parts are listed for the 2012 Honda Insight, from CSF, TYC, AGILITY and 3 other brands. CSF 3483 carries the "Popular" badge.

Part numbers include CSF 3483, TYC 13105 and AGILITY 8013105, among others listed above.

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 are listed for the 2012 Honda Insight, from MOTORAD, CSF, GATES and 2 other brands. CSF 4514 carries the "Popular" badge.

The Locking Replacement section lists 1 option from MOTORAD — grouped under the catalog's "Locking Replacement" designation — the notes column spells out what sets them apart. MOTORAD ST37 is listed in this group.

The Standard Replacement section: 5 options from CSF, GATES, CALORSTAT and 2 other brands. CSF 4514 is listed in this group.

Listed part numbers: CSF 4514, MOTORAD ST37 and GATES 31412, plus the other parts above.

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

6 Radiator Fan Assembly parts for the 2012 Honda Insight come from 6 brands — GPD, AGILITY, TYC and 3 other brands. The "Popular" part is AGILITY 6010017.

The Economy section: 1 option from GPD. GPD 2811347 is listed in this group.

Standard Replacement: 5 parts, from AGILITY, TYC, FOUR SEASONS and 2 other brands. A representative part number is AGILITY 6010017.

Listed part numbers: AGILITY 6010017, GPD 2811347 and TYC 601250, plus the other parts above.

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

3 Radiator Hose parts for the 2012 Honda Insight come from 2 brands — CONTINENTAL and GATES.

This group includes CONTINENTAL 66674, CONTINENTAL 66673 and GATES 23571.

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

This group shows a single part: DORMAN 927241.

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

13 Temperature Sender / Sensor parts are listed for the 2012 Honda Insight, from STANDARD MOTOR PRODUCTS, HOLSTEIN, CALORSTAT and 8 other brands. STANDARD MOTOR PRODUCTS TX215T carries the "Popular" badge.

Economy: 6 parts, from HOLSTEIN, STANDARD MOTOR PRODUCTS, CALORSTAT and 2 other brands. A representative part number is STANDARD MOTOR PRODUCTS TX215T.

The Standard Replacement section: 7 options from STANDARD MOTOR PRODUCTS, WELLS, BECK/ARNLEY and 4 other brands. STANDARD MOTOR PRODUCTS TX215 is listed in this group.

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 are listed for the 2012 Honda Insight, from APEX and FEL-PRO.

Listed part numbers: 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

12 Thermostat parts for the 2012 Honda Insight come from 8 brands — MOTORAD, JAPANESE OE, AISIN and 5 other brands. The "Popular" part is MOTORAD 5328170.

In the Heavy Duty grade, MOTORAD supplies 1 part: rated for severe service. A representative part number is MOTORAD 5328170.

The Performance section lists 1 option from MOTORAD — engineered beyond original-equipment specification. MOTORAD 2328170 is listed in this group.

Premium: 1 part, from MOTORAD. A representative part number is MOTORAD 7328170.

Standard Replacement: 9 parts, from JAPANESE OE, AISIN, MOTORAD and 5 other brands. A representative part number is AISIN THH007.

This table covers the seals at the thermostat housing and water outlet. 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

10 Thermostat / Thermostat Housing / Water Outlet Seal parts are listed for the 2012 Honda Insight, from AISIN, MOTORAD, APEX and 7 other brands. AISIN THP505 carries the "Popular" badge.

This table covers the housings and outlets the thermostat sits in. Read more

4 Thermostat Housing / Water Outlet parts for the 2012 Honda Insight come from 2 brands — MOTORAD and FOUR SEASONS.

Listed part numbers: FOUR SEASONS 86135, MOTORAD CH1101 and MOTORAD CH2090, plus the other parts above.

This table covers the pumps that circulate coolant through the block and radiator. Typical signs include coolant at the weep hole, pulley play, or a growl from the front of the engine. Replace the thermostat and refill with the specified coolant whenever the pump comes off. Read more

6 Water Pump parts for the 2012 Honda Insight come from 6 brands — BECK/ARNLEY, FVP, US MOTOR WORKS and 3 other brands. The "Popular" part is ACDELCO 252999.

The Economy section: 3 options from BECK/ARNLEY, FVP and US MOTOR WORKS. BECK/ARNLEY 1312478 is listed in this group.

Standard Replacement: 3 parts, from ACDELCO, GATES and GMB. A representative part number is ACDELCO 252999.

Listed part numbers: ACDELCO 252999, BECK/ARNLEY 1312478 and FVP US8983, plus the other parts above.

This table covers the gaskets between the water pump and the block or housing. Typical signs include seepage at the joint, a burnt-oil smell, or a leak that appears only after a long drive. Clean both flanges and torque in the sequence the notes or the manual call for. Read more

4 Water Pump Gasket parts are listed for the 2012 Honda Insight, from AJUSA, APEX, BECK/ARNLEY and 1 other brand.

Listed part numbers: AJUSA 01238200, APEX AWP3272 and BECK/ARNLEY 0394186, plus the other parts above.