2019 Cadillac Ats 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 2019 Cadillac Ats, from PRESTONE, PEAK, VALVOLINE and 3 other brands. FVP MV5050GAL carries the "Popular" badge. All of them fit every engine offered in the 2019 Ats.

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 Coolant Air Bleed Hose pipes. Read more

GM GENUINE supplies the 4 Coolant Air Bleed Hose / Pipe parts for the 2019 Cadillac Ats.

Listed part numbers: GM GENUINE 12634280, GM GENUINE 12683453 and GM GENUINE 12653191, plus the other parts above.

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

13 Coolant Hose / Pipe parts are listed for the 2019 Cadillac Ats, from GM GENUINE, ACDELCO, CONTINENTAL and 1 other brand. GM GENUINE 84890763 carries the "Popular" badge.

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 for the 2019 Cadillac Ats come from 4 brands — GM GENUINE, ELRING, FEL-PRO and 1 other brand. The "Popular" part is GM GENUINE 12627055. 1 part fits every engine; the other 6 are engine-specific.

Part numbers include GM GENUINE 12627055, ELRING 943630 and FEL-PRO 36156, among others listed above.

This table covers the Coolant Hose Connector flanges. Read more

2 Coolant Hose Connector / Flange parts are listed for the 2019 Cadillac Ats, from FOUR SEASONS and GM GENUINE.

Part numbers include FOUR SEASONS 86373 and GM GENUINE 23333192.

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

This group shows a single part: ELRING 237180.

This table covers the gaskets that seal the Coolant Pipe. 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

This group shows a single part: AJUSA 01154600.

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

2 Coolant Reservoir parts for the 2019 Cadillac Ats come from 2 brands — GM GENUINE and GPD. Every part fits all 3 engine options (2.0L L4 Turbocharged, 3.6L V6 and 3.6L V6 Turbocharged).

Part numbers include GM GENUINE 22948113 and GPD 2411335.

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

4 Coolant Reservoir Cap parts for the 2019 Cadillac Ats come from 4 brands — AUTOTECNICA, CALORSTAT, GATES and 1 other brand. Every part fits all 3 engine options (2.0L L4 Turbocharged, 3.6L V6 and 3.6L V6 Turbocharged).

Listed part numbers: AUTOTECNICA GM0714619, CALORSTAT RC0144 and GATES 31569, plus the other parts above.

This table covers the Coolant Reservoir clamps. Read more

One part is listed for the 2019 Cadillac Ats — GM GENUINE 90572587.

This table covers the Cooling Fan control modules. Read more

3 Cooling Fan Control Module parts for the 2019 Cadillac Ats come from 3 brands — GM GENUINE, SHEE-MAR and STANDARD MOTOR PRODUCTS. 2 parts fit every engine; the other 1 is engine-specific.

This group includes GM GENUINE 1581991, SHEE-MAR SM1270 and STANDARD MOTOR PRODUCTS RY1941.

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

MOTORAD supplies both parts for the 2019 Cadillac Ats. All of them fit every engine offered in the 2019 Ats.

This group includes MOTORAD 3128 and MOTORAD 3127.

This table covers the Hose clamps. Read more

GM GENUINE supplies the 10 Hose Clamp parts for the 2019 Cadillac Ats. GM GENUINE 90530642 carries the "Popular" badge. 1 part fits every engine; the other 9 are engine-specific.

This table covers the intercoolers that cool turbo or supercharger charge air. Read more

11 Intercooler parts are listed for the 2019 Cadillac Ats, from GM GENUINE, TECHPRO, GPD and 3 other brands. GM GENUINE 84510353 carries the "Popular" badge.

Economy: 2 parts, from TECHPRO. A representative part number is TECHPRO GM3012125.

The Standard Replacement section: 4 options from GM GENUINE. GM GENUINE 84510353 is listed in this group.

5 ungrouped parts are not assigned to a grade, with the same engine-level match.

This table covers the Intercooler Air Hose pipes. Read more

GM GENUINE supplies the 7 Intercooler Air Hose / Pipe parts for the 2019 Cadillac Ats.

Part numbers include GM GENUINE 22799479, GM GENUINE 22799478 and GM GENUINE 22799477, among others listed above.

This table covers the gaskets that seal the Intercooler. 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

This group shows a single part: ELRING B18110.

This table covers the brackets that mount the Intercooler Hose / Pipe. 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 2019 Cadillac Ats — GM GENUINE 84399881.

This table covers the Intercooler Hose / Pipe clamps. Read more

This group shows a single part: GM GENUINE 13335193.

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

12 Radiator parts are listed for the 2019 Cadillac Ats, from KOYORAD, AGILITY, GM GENUINE and 5 other brands. CSF 3904 carries the "Popular" badge. 4 parts fit every engine; the other 8 are engine-specific.

Economy: 1 part, from GPD. A representative part number is GPD 13784C.

The Standard Replacement section: 11 options from KOYORAD, AGILITY, GM GENUINE and 4 other brands. CSF 3904 is listed in this group.

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

ACDELCO supplies both parts for the 2019 Cadillac Ats. All of them fit every engine offered in the 2019 Ats.

Part numbers include ACDELCO RC117 and ACDELCO RC115.

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

This group shows a single part: GM GENUINE 22887095.

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

11 Radiator Fan Assembly parts for the 2019 Cadillac Ats come from 8 brands — GPD, GM GENUINE, FOUR SEASONS and 5 other brands. The "Popular" part is GM GENUINE 1581865. 2 parts fit every engine; the other 9 are engine-specific.

The Economy section: 4 options from GPD, DORMAN and VARIOUS MFR. DORMAN 621984 is listed in this group.

Standard Replacement: 7 parts, from GM GENUINE, FOUR SEASONS, TYC and 2 other brands. A representative part number is GM GENUINE 1581865.

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

17 Radiator Hose parts for the 2019 Cadillac Ats come from 4 brands — GM GENUINE, ACDELCO, GATES and 1 other brand. The "Popular" part is ACDELCO 22815L.

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

4 Radiator Seal parts for the 2019 Cadillac Ats come from GM GENUINE.

Part numbers include GM GENUINE 23107669, GM GENUINE 23362367 and GM GENUINE 23107670, among others listed above.

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

This group shows a single part: GM GENUINE 10402850.

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 2019 Cadillac Ats, from GM GENUINE, STANDARD MOTOR PRODUCTS, WALKER PRODUCTS and 7 other brands. GM GENUINE 12656444 carries the "Popular" badge. 1 part fits every engine; the other 12 are engine-specific.

Economy: 4 parts, from GPD, HOLSTEIN, UNITED MOTOR PRODUCTS and 1 other brand. A representative part number is GPD 1712905.

The Standard Replacement section: 9 options from GM GENUINE, STANDARD MOTOR PRODUCTS, WALKER PRODUCTS and 3 other brands. GM GENUINE 12656444 is listed in this group.

This table covers the Temperature Sender / Sensor clips. Read more

One part is listed for the 2019 Cadillac Ats — DORMAN 66264.

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

One part is listed for the 2019 Cadillac Ats — GM GENUINE 12639042.

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

17 Thermostat parts for the 2019 Cadillac Ats come from 7 brands — MOTORAD, GATES, AUTOTECNICA and 4 other brands. The "Popular" part is GATES 34717.

The Economy section: 6 options from AUTOTECNICA, DORMAN and SKP. AUTOTECNICA GM0720261 is listed in this group.

In the Heavy Duty grade, MOTORAD supplies 1 part: rated for severe service. A representative part number is MOTORAD 5959195.

Standard Replacement: 9 parts, from MOTORAD, GATES, CALORSTAT and 1 other brand. A representative part number is GATES 34717.

1 further part sits outside the graded sections, with the same engine-level match.

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

31 Thermostat / Thermostat Housing / Water Outlet Seal parts are listed for the 2019 Cadillac Ats, from GM GENUINE, FEL-PRO, APEX and 4 other brands. FEL-PRO 35855 carries the "Popular" badge. The notes list position, dimensions and spec qualifiers wherever the manufacturer distinguishes between variants.

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

12 Thermostat Housing / Water Outlet parts for the 2019 Cadillac Ats come from 7 brands — GM GENUINE, GATES, DORMAN and 4 other brands. The "Popular" part is DORMAN 9022134.

The Economy section: 2 options from DORMAN and SKP. DORMAN 9022134 is listed in this group.

Standard Replacement: 4 parts, from GM GENUINE, FOUR SEASONS and GATES. A representative part number is GM GENUINE 1511084.

6 further parts sit outside the graded sections, with the same engine-level match.

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

3 Water Inlet Gasket parts are listed for the 2019 Cadillac Ats, from FEL-PRO, GM GENUINE and MAHLE / CLEVITE.

This group includes FEL-PRO 36167, GM GENUINE 12647400 and MAHLE / CLEVITE C33508.

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

31 Water Pump parts for the 2019 Cadillac Ats come from 12 brands — GATES, US MOTOR WORKS, FVP and 9 other brands. The "Popular" part is US MOTOR WORKS US8102. Economy and Standard Replacement are all represented, and Standard Replacement alone accounts for 19 parts.