2012 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 for the 2012 Cadillac CTS come from 6 brands — PRESTONE, PEAK, VALVOLINE and 3 other brands. The "Popular" part is FVP MV5050GAL. Every part fits all 3 engine options (3.0L V6, 3.6L V6 and 6.2L V8 Supercharged).

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, PEAK, PRESTONE 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 4 parts: a step above OE specification in materials, tolerances or warranty terms. A representative part number is PRESTONE AF2100.

In the Standard Replacement grade, VALVOLINE, PRESTONE, ACDELCO and 2 other brands supply 7 parts: built to original-equipment specification. A representative part number is ACDELCO 105027.

This table covers the Coolant Air Bleed Hose pipes. Read more

2 Coolant Air Bleed Hose / Pipe parts for the 2012 Cadillac CTS come from GM GENUINE.

This group includes GM GENUINE 12606243 and GM GENUINE 12614997.

This table covers the bleeders used to purge air from the coolant circuit. Read more

One part is listed for the 2012 Cadillac CTS — GM GENUINE 12602048.

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

2 Coolant Hose / Pipe parts for the 2012 Cadillac CTS come from GM GENUINE. 1 part fits every engine; the other 1 is engine-specific.

This group includes GM GENUINE 12633398 and GM GENUINE 25880392.

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 are listed for the 2012 Cadillac CTS, from ELRING and GM GENUINE. 2 parts fit every engine; the other 2 are engine-specific.

Part numbers include ELRING 943630, ELRING 868630 and ELRING 857680, among others listed above.

This table covers the Coolant Hose Connector flanges. Read more

2 Coolant Hose Connector / Flange parts for the 2012 Cadillac CTS come from GM GENUINE.

Part numbers include GM GENUINE 25891276 and GM GENUINE 25891275.

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

One part is listed for the 2012 Cadillac CTS — AJUSA 01154600.

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

TECHPRO supplies both parts for the 2012 Cadillac CTS. All of them fit every engine offered in the 2012 CTS.

This group includes TECHPRO GM3014154 and TECHPRO GM3014155.

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 are listed for the 2012 Cadillac CTS, from MOTORAD, AUTOTECNICA and GM GENUINE. 1 part fits every engine; the other 3 are engine-specific.

Part numbers include AUTOTECNICA GM0613026, GM GENUINE 15076936 and MOTORAD T46, among others listed above.

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

This group shows a single part: GM GENUINE 11610704.

This table covers the seals at the Coolant Reservoir. 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 12623461.

This table covers the Coolant Water Crossover Mounting sets. Read more

3 Coolant Water Crossover Mounting Set parts for the 2012 Cadillac CTS come from 3 brands — FEL-PRO, MAHLE / CLEVITE and VICTOR REINZ.

Listed part numbers: FEL-PRO ES73027, MAHLE / CLEVITE GS33845 and VICTOR REINZ 181002301.

This table covers the Cooling Fan control modules. Read more

US MOTOR WORKS supplies the 3 Cooling Fan Control Module parts for the 2012 Cadillac CTS.

Listed part numbers: 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

4 Cooling System Tester Adapter parts for the 2012 Cadillac CTS come from 2 brands — GATES and MOTORAD. Every part fits all 3 engine options (3.0L V6, 3.6L V6 and 6.2L V8 Supercharged).

Part numbers include GATES 31431, GATES 31391 and MOTORAD 3128, among others listed above.

This table covers the Hose clamps. Read more

3 Hose Clamp parts for the 2012 Cadillac CTS come from GM GENUINE.

This group includes GM GENUINE 90530642, GM GENUINE 11570868 and GM GENUINE 11570870.

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

2 Intercooler parts for the 2012 Cadillac CTS come from GM GENUINE.

This group includes GM GENUINE 12604853 and GM GENUINE 25876663.

This table covers the Intercooler covers. Read more

One part is listed for the 2012 Cadillac CTS — GM GENUINE 12631035.

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

2 Intercooler Gasket parts are listed for the 2012 Cadillac CTS, from ELRING and GM GENUINE.

Part numbers include ELRING 857650 and GM GENUINE 12613457.

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

One part is listed for the 2012 Cadillac CTS — 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

29 Radiator parts for the 2012 Cadillac CTS come from 12 brands — OSC, GPD, DENSO and 9 other brands. The "Popular" part is DENSO 2219355. Grades run from Economy through Standard Replacement; Standard Replacement is the most populated section, led by KOYORAD, DENSO, AGILITY and 5 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

2 Radiator Cap parts for the 2012 Cadillac CTS come from 2 brands — ACDELCO and GATES. Every part fits all 3 engine options (3.0L V6, 3.6L V6 and 6.2L V8 Supercharged).

Listed part numbers: ACDELCO RC116 and GATES 31532.

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

9 Radiator Fan Assembly parts are listed for the 2012 Cadillac CTS, from SKP, GPD, TECHPRO and 6 other brands. SKP SK620567 carries the "Popular" badge. 3 parts fit every engine; the other 6 are engine-specific.

Economy: 4 parts, from SKP, GPD, TECHPRO and 1 other brand. A representative part number is SKP SK620567.

The Standard Replacement section: 5 options from AGILITY, FOUR SEASONS, TYC and 2 other brands. AGILITY 6010030 is listed in this group.

Part numbers include SKP SK620567, GPD 2811881 and TECHPRO GM3115262, among others listed above.

This table covers the Radiator Fan blades. Typical signs include chatter, streaks, or a skip at the top of the stroke. Confirm left and right lengths in the notes — they are often different. Read more

GM GENUINE supplies both parts for the 2012 Cadillac CTS. 1 part fits every engine; the other 1 is engine-specific.

Listed part numbers: GM GENUINE 19435353 and GM GENUINE 19129773.

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: GM GENUINE 1581137.

This table covers the Radiator Fan resistors. Read more

3 Radiator Fan Resistor parts for the 2012 Cadillac CTS come from 3 brands — AUTOTECNICA, GM GENUINE and STANDARD MOTOR PRODUCTS. 1 part fits every engine; the other 2 are engine-specific.

Part numbers include AUTOTECNICA GM1320083, GM GENUINE 25881844 and STANDARD MOTOR PRODUCTS RY2010.

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

11 Radiator Hose parts are listed for the 2012 Cadillac CTS, from ACDELCO, DAYCO, CONTINENTAL and 1 other brand. ACDELCO 27033X carries the "Popular" badge. 1 part fits every engine; the other 10 are engine-specific.

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

24 Temperature Sender / Sensor parts for the 2012 Cadillac CTS come from 15 brands — STANDARD MOTOR PRODUCTS, UNITED MOTOR PRODUCTS, HOLSTEIN and 12 other brands. The "Popular" part is STANDARD MOTOR PRODUCTS TX89T. 7 parts fit every engine; the other 17 are engine-specific.

The Economy section: 8 options from UNITED MOTOR PRODUCTS, HOLSTEIN, STANDARD MOTOR PRODUCTS and 2 other brands. STANDARD MOTOR PRODUCTS TX89T is listed in this group.

The Full Service Kit section lists 1 option from WALKER PRODUCTS — grouped under the catalog's "Full Service Kit" designation — the notes column spells out what sets them apart. WALKER PRODUCTS 21191118 is listed in this group.

Standard Replacement: 15 parts, from GM GENUINE, STANDARD MOTOR PRODUCTS, NTK and 8 other brands. A representative part number is GM GENUINE 2134333.

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

20 Thermostat parts are listed for the 2012 Cadillac CTS, from MOTORAD, GATES, CALORSTAT and 6 other brands. GATES 34198 carries the "Popular" badge.

Economy: 2 parts, from AUTOTECNICA and SKP. A representative part number is AUTOTECNICA GM0718523.

The Heavy Duty section lists 2 options from MOTORAD — rated for severe service. MOTORAD 5523187 is listed in this group.

In the Performance grade, MOTORAD supplies 2 parts: engineered beyond original-equipment specification. A representative part number is MOTORAD 2523160.

The Standard Replacement section: 10 options from MOTORAD, CALORSTAT, GATES and 3 other brands. GATES 34198 is listed in this group.

4 ungrouped parts are not assigned to a grade, 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

33 Thermostat / Thermostat Housing / Water Outlet Seal parts for the 2012 Cadillac CTS come from 7 brands — FEL-PRO, MAHLE / CLEVITE, VICTOR REINZ and 4 other brands. The "Popular" part is APEX AWO2229. A list this long means Thermostat / Thermostat Housing / Water Outlet Seal applications vary by configuration — the notes carry the qualifiers.

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

3 Thermostat Housing / Water Outlet parts are listed for the 2012 Cadillac CTS, from ACDELCO, GM GENUINE and MOTORAD.

This group includes ACDELCO 12706566, GM GENUINE 1511056 and MOTORAD CH3140.

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

This group shows a single part: 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

27 Water Pump parts are listed for the 2012 Cadillac CTS, from GATES, GM GENUINE, GMB and 13 other brands. BECK/ARNLEY 1312378 carries the "Popular" badge. Economy and Standard Replacement are all represented, and Standard Replacement alone accounts for 17 parts.