2021 Chevrolet Corvette 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 are listed for the 2021 Chevrolet Corvette, from PRESTONE, PEAK, VALVOLINE and 3 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, PRESTONE and 1 other brand supply 4 parts: the catalog's value-priced group. A representative part number is FVP MV5050GAL.

The Premium section lists 4 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 7 options from VALVOLINE, PRESTONE, ACDELCO and 2 other brands — built to original-equipment specification. ACDELCO 105027 is listed in this group.

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

GM GENUINE supplies the 10 Coolant Hose / Pipe parts for the 2021 Chevrolet Corvette. GM GENUINE 85147477 carries the "Popular" badge.

This table covers the Coolant Hose Connector flanges. Read more

GM GENUINE supplies the 3 Coolant Hose Connector / Flange parts for the 2021 Chevrolet Corvette.

This group includes GM GENUINE 1510595, GM GENUINE 84254392 and GM GENUINE 23333192.

This table covers the Coolant Hose retainers and clips. Read more

GM GENUINE supplies the 9 Coolant Hose Retainer / Clip parts for the 2021 Chevrolet Corvette. GM GENUINE 11547355 carries the "Popular" badge.

Listed part numbers: GM GENUINE 11547355, GM GENUINE 88996648 and GM GENUINE 13596789, plus the other parts above.

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

This group shows a single part: GM GENUINE 84889157.

This table covers the brackets that mount the Coolant Reservoir. Typical signs include a cracked mount, a rattle, or a bracket that no longer holds alignment. Confirm position in the notes. Many brackets look alike and bolt to different corners. Read more

4 Coolant Reservoir Bracket parts for the 2021 Chevrolet Corvette come from GM GENUINE.

Listed part numbers: GM GENUINE 84238791, GM GENUINE 84529994 and GM GENUINE 84529996, plus the other 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

6 Coolant Reservoir Cap parts for the 2021 Chevrolet Corvette come from 6 brands — DORMAN, SKP, AUTOTECNICA and 3 other brands. The "Popular" part is DORMAN 54218.

Listed part numbers: DORMAN 54218, SKP SK54218 and AUTOTECNICA GM0714619, plus the other parts above.

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

MOTORAD supplies both parts for the 2021 Chevrolet Corvette.

Part numbers include MOTORAD 3128 and MOTORAD 3127.

This table covers the Hose clamps. Read more

GM GENUINE supplies the 10 Hose Clamp parts for the 2021 Chevrolet Corvette. GM GENUINE 11570871 carries the "Popular" badge.

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

GM GENUINE supplies the 5 Radiator parts for the 2021 Chevrolet Corvette. GM GENUINE 85559349 carries the "Popular" badge.

Part numbers include GM GENUINE 85559349, GM GENUINE 23429489 and GM GENUINE 85559348, 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

2 Radiator Cap parts are listed for the 2021 Chevrolet Corvette, from ACDELCO and PROFESSIONAL PARTS SWEDEN.

Listed part numbers: ACDELCO RC124 and PROFESSIONAL PARTS SWEDEN 21342353.

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

This group shows a single part: GM GENUINE 22790134.

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

9 Radiator Fan Assembly parts for the 2021 Chevrolet Corvette come from 4 brands — TECHPRO, GPD, GM GENUINE and 1 other brand. The "Popular" part is GM GENUINE 85670398.

The Economy section: 6 options from TECHPRO and GPD. GPD 2812479 is listed in this group.

Standard Replacement: 3 parts, from GM GENUINE and TYC. A representative part number is GM GENUINE 85670398.

This group includes GM GENUINE 85670398, GPD 2812479 and GPD 2812480 and the remaining parts above.

This table covers the brackets that mount the Radiator Fan Motor. Typical signs include a cracked mount, a rattle, or a bracket that no longer holds alignment. Confirm position in the notes. Many brackets look alike and bolt to different corners. Read more

One part is listed for the 2021 Chevrolet Corvette — GM GENUINE 84524655.

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

10 Radiator Hose parts for the 2021 Chevrolet Corvette come from 2 brands — GM GENUINE and ACDELCO. The "Popular" part is GM GENUINE 85147464.

This table covers the brackets that mount the Radiator Hose. Typical signs include a cracked mount, a rattle, or a bracket that no longer holds alignment. Confirm position in the notes. Many brackets look alike and bolt to different corners. Read more

4 Radiator Hose Bracket parts for the 2021 Chevrolet Corvette come from 2 brands — GM GENUINE and ACDELCO.

This group includes ACDELCO 84652021, GM GENUINE 84238786 and GM GENUINE 84900073 and the remaining parts above.

This table covers the Radiator Insulator sleeves. Read more

This group shows a single part: GM GENUINE 84215645.

This table covers the seals at the Radiator. 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

2 Radiator Seal parts for the 2021 Chevrolet Corvette come from GM GENUINE.

Listed part numbers: GM GENUINE 84280868 and GM GENUINE 84280869.

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

11 Temperature Sender / Sensor parts are listed for the 2021 Chevrolet Corvette, from GM GENUINE, STANDARD MOTOR PRODUCTS, WELLS and 5 other brands. ULTRA-POWER 5S13427 carries the "Popular" badge.

Economy: 3 parts, from ULTRA-POWER, GPD and HOLSTEIN. A representative part number is ULTRA-POWER 5S13427.

The Standard Replacement section: 8 options from GM GENUINE, STANDARD MOTOR PRODUCTS, WELLS and 2 other brands. GM GENUINE 55497116 is listed in this group.

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

8 Thermostat parts for the 2021 Chevrolet Corvette come from 4 brands — MOTORAD, CALORSTAT, DORMAN and 1 other brand. The "Popular" part is DORMAN 9022981.

The Economy section: 2 options from DORMAN and AUTOTECNICA. DORMAN 9022981 is listed in this group.

In the Heavy Duty grade, MOTORAD supplies 1 part: rated for severe service. A representative part number is MOTORAD 5523160.

The Performance section lists 2 options from MOTORAD — engineered beyond original-equipment specification. MOTORAD 2523160 is listed in this group.

Standard Replacement: 3 parts, from CALORSTAT and MOTORAD. A representative part number is MOTORAD 523160.

Part numbers include DORMAN 9022981, AUTOTECNICA GM0718523 and MOTORAD 5523160, among others listed above.

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

2 Thermostat / Thermostat Housing / Water Outlet Seal parts are listed for the 2021 Chevrolet Corvette, from FEL-PRO and VICTOR REINZ.

Part numbers include FEL-PRO 35720 and VICTOR REINZ 711357800.

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

4 Thermostat Housing / Water Outlet parts for the 2021 Chevrolet Corvette come from 4 brands — DORMAN, FOUR SEASONS, GATES and 1 other brand.

The Economy section: 1 option from DORMAN. DORMAN 9022081 is listed in this group.

Standard Replacement: 3 parts, from FOUR SEASONS, GATES and MOTORAD. A representative part number is FOUR SEASONS 85945.

Part numbers include DORMAN 9022081, FOUR SEASONS 85945 and GATES CO34829, among others listed above.

This table covers the gaskets that seal the Water Inlet. 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

One part is listed for the 2021 Chevrolet Corvette — GM GENUINE 12587397.

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

3 Water Pump parts for the 2021 Chevrolet Corvette come from 3 brands — FVP, GM GENUINE and GMB.

Part numbers include FVP 1303200 and GM GENUINE 12725188, among others listed 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

5 Water Pump Gasket parts are listed for the 2021 Chevrolet Corvette, from GM GENUINE, FEL-PRO and MAHLE / CLEVITE. GM GENUINE 2512066 carries the "Popular" badge.

Part numbers include GM GENUINE 2512066, FEL-PRO 36110 and FEL-PRO 36109, among others listed above.

This table covers the Water Pump housings. Read more

GM GENUINE supplies both parts for the 2021 Chevrolet Corvette.

This group includes GM GENUINE 12714605 and GM GENUINE 12725190.

This table covers the Water Pump Inlet tubes. Read more

This group shows a single part: GM GENUINE 84369166.