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

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 CTS.

Part numbers include GM GENUINE 12634280, GM GENUINE 12683453 and GM GENUINE 12653191, among others listed above.

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

21 Coolant Hose / Pipe parts are listed for the 2019 Cadillac CTS, from GM GENUINE, ACDELCO and DORMAN. GM GENUINE 12627054 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 CTS 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

GM GENUINE supplies both parts for the 2019 Cadillac CTS.

This group includes GM GENUINE 23333192 and GM GENUINE 1533814.

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 Coolant Hose retainers and clips. Read more

GM GENUINE supplies the 4 Coolant Hose Retainer / Clip parts for the 2019 Cadillac CTS.

Listed part numbers: GM GENUINE 11547758, GM GENUINE 11547271 and GM GENUINE 11547756, plus the other parts above.

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 CTS come from 2 brands — GM GENUINE and GPD. Every part fits all 4 engine options (2.0L L4 Turbocharged, 3.6L V6, 3.6L V6 Turbocharged and 6.2L V8 Supercharged).

This group includes 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 CTS come from 4 brands — AUTOTECNICA, CALORSTAT, GATES and 1 other brand. Every part fits all 4 engine options (2.0L L4 Turbocharged, 3.6L V6, 3.6L V6 Turbocharged and 6.2L V8 Supercharged).

This group includes AUTOTECNICA GM0714619, CALORSTAT RC0144 and GATES 31569 and the remaining parts above.

This table covers the Cooling Fan control modules. Read more

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

Listed part numbers: 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 CTS. All of them fit every engine offered in the 2019 CTS.

This group includes MOTORAD 3128 and MOTORAD 3127.

This table covers the Hose clamps. Read more

GM GENUINE supplies the 11 Hose Clamp parts for the 2019 Cadillac CTS. GM GENUINE 13162312 carries the "Popular" badge.

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

12 Intercooler parts are listed for the 2019 Cadillac CTS, from GM GENUINE, TECHPRO, GPD and 3 other brands. TYC 18133 carries the "Popular" badge.

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

The Standard Replacement section: 3 options from GM GENUINE. GM GENUINE 84356897 is listed in this group.

7 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 CTS.

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

3 Intercooler Gasket parts for the 2019 Cadillac CTS come from 2 brands — GM GENUINE and ELRING. 1 part fits every engine; the other 2 are engine-specific.

Listed part numbers: ELRING B18110, GM GENUINE 12642745 and GM GENUINE 12642744.

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

GM GENUINE supplies the 6 Intercooler Hose / Pipe Bracket parts for the 2019 Cadillac CTS.

This group includes GM GENUINE 22990685, GM GENUINE 22990686 and GM GENUINE 84399882 and the remaining parts above.

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

This group shows a single part: GM GENUINE 13335193.

This table covers the Intercooler retainers and clips. Read more

This group shows a single part: GM GENUINE 88996648.

This table covers the seals at the Intercooler. 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: GM GENUINE 12608997.

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

21 Radiator parts are listed for the 2019 Cadillac CTS, from AGILITY, KOYORAD, TYC and 6 other brands. CSF 3904 carries the "Popular" badge. 2 parts fit every engine; the other 19 are engine-specific.

Economy: 3 parts, from GPD and TECHPRO. A representative part number is GPD 13784C.

The Standard Replacement section: 18 options from AGILITY, KOYORAD, TYC 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 CTS. All of them fit every engine offered in the 2019 CTS.

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

15 Radiator Fan Assembly parts for the 2019 Cadillac CTS come from 10 brands — GM GENUINE, UAC, FOUR SEASONS and 7 other brands. The "Popular" part is FOUR SEASONS 75185.

The Economy section: 4 options from DORMAN, GPD, TECHPRO and 1 other brand. DORMAN 621984 is listed in this group.

Standard Replacement: 11 parts, from GM GENUINE, UAC, FOUR SEASONS and 3 other brands. A representative part number is FOUR SEASONS 75185.

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

22 Radiator Hose parts for the 2019 Cadillac CTS come from 5 brands — GM GENUINE, ACDELCO, GATES and 2 other brands. The "Popular" part is ACDELCO 12659311.

This table covers the Radiator insulators. Read more

This group shows a single part: GM GENUINE 52476687.

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

6 Radiator Seal parts for the 2019 Cadillac CTS come from GM GENUINE. The "Popular" part is GM GENUINE 23107669.

Listed part numbers: GM GENUINE 23107669, GM GENUINE 23164440 and GM GENUINE 23445353, plus the other parts 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

31 Temperature Sender / Sensor parts are listed for the 2019 Cadillac CTS, from STANDARD MOTOR PRODUCTS, WALKER PRODUCTS, GM GENUINE and 12 other brands. STANDARD MOTOR PRODUCTS TX89T carries the "Popular" badge. Economy, Full Service Kit and Standard Replacement are all represented, and Standard Replacement alone accounts for 20 parts.

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

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