2021 Cadillac XT5 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

17 Coolant / Antifreeze parts are listed for the 2021 Cadillac XT5, from PRESTONE, PEAK, VALVOLINE and 3 other brands. FVP MV5050GAL carries the "Popular" badge. 13 parts fit every engine; the other 4 are engine-specific.

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 Heavy Duty section lists 1 option from PRESTONE — rated for severe service. PRESTONE AFC12100 is listed in this group.

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

5 Coolant Air Bleed Hose / Pipe parts are listed for the 2021 Cadillac XT5, from GM GENUINE and ACDELCO.

Listed part numbers: ACDELCO 55507188, GM GENUINE 55487843 and GM GENUINE 55487839, plus the other parts above.

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

9 Coolant Hose / Pipe parts are listed for the 2021 Cadillac XT5, from GM GENUINE and ACDELCO. GM GENUINE 55509175 carries the "Popular" badge.

Listed part numbers: GM GENUINE 55509175, GM GENUINE 55487844 and ACDELCO 84863051, plus the other parts above.

This table covers the Coolant Hose Connector flanges. Read more

2 Coolant Hose Connector / Flange parts are listed for the 2021 Cadillac XT5, from FOUR SEASONS and GM GENUINE. 1 part fits every engine; the other 1 is engine-specific.

Part numbers include FOUR SEASONS 86373 and GM GENUINE 23333192.

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

GM GENUINE supplies both parts for the 2021 Cadillac XT5. 1 part fits every engine; the other 1 is engine-specific.

Listed part numbers: GM GENUINE 11548672 and GM GENUINE 15041309.

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

7 Coolant Reservoir parts for the 2021 Cadillac XT5 come from 6 brands — TECHPRO, DORMAN, GM GENUINE and 3 other brands. The "Popular" part is DORMAN 603861. Every part fits both the 2.0L L4 Turbocharged and the 3.6L V6.

Part numbers include DORMAN 603861, GM GENUINE 23386455 and GPD 2411160, among others listed 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 Cadillac XT5 come from 6 brands — DORMAN, SKP, AUTOTECNICA and 3 other brands. The "Popular" part is DORMAN 54218. 5 parts fit every engine; the other 1 is engine-specific.

Part numbers include DORMAN 54218, SKP SK54218 and AUTOTECNICA GM0714619, among others listed above.

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

MOTORAD supplies both parts for the 2021 Cadillac XT5. All of them fit every engine offered in the 2021 XT5.

Part numbers include MOTORAD 3128 and MOTORAD 3127.

This table covers the Hose clamps. Read more

GM GENUINE supplies the 14 Hose Clamp parts for the 2021 Cadillac XT5. GM GENUINE 90572594 carries the "Popular" badge. 5 parts fit every engine; the other 9 are engine-specific.

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

2 Intercooler parts are listed for the 2021 Cadillac XT5, from GM GENUINE and TYC.

Listed part numbers: GM GENUINE 85557764 and TYC 18150.

This table covers the Intercooler Air Hose pipes. Read more

One part is listed for the 2021 Cadillac XT5 — GM GENUINE 84157174.

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

11 Radiator parts are listed for the 2021 Cadillac XT5, from GM GENUINE, UAC, TYC and 5 other brands. GM GENUINE 85797937 carries the "Popular" badge.

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

3 Radiator Cap parts are listed for the 2021 Cadillac XT5, from ACDELCO, GATES and PROFESSIONAL PARTS SWEDEN. 2 parts fit every engine; the other 1 is engine-specific.

This group includes ACDELCO RC124, GATES 31569 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 23444086.

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

12 Radiator Fan Assembly parts for the 2021 Cadillac XT5 come from 8 brands — GM GENUINE, GPD, SKP and 5 other brands. The "Popular" part is FOUR SEASONS 75197.

The Economy section: 4 options from GPD, SKP, TECHPRO and 1 other brand. GPD 2812298 is listed in this group.

Standard Replacement: 8 parts, from GM GENUINE, FOUR SEASONS, TYC and 1 other brand. A representative part number is FOUR SEASONS 75197.

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 for the 2021 Cadillac XT5 come from 3 brands — ACDELCO, GATES and GM GENUINE. The "Popular" part is ACDELCO 84006779. 4 parts fit every engine; the other 7 are engine-specific.

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 2021 Cadillac XT5 come from GM GENUINE.

Part numbers include GM GENUINE 84672585, GM GENUINE 84672586 and GM GENUINE 23100851, among others listed above.

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

16 Temperature Sender / Sensor parts are listed for the 2021 Cadillac XT5, from GPD, HOLSTEIN, GM GENUINE and 4 other brands. GM GENUINE 55488246 carries the "Popular" badge. 4 parts fit every engine; the other 12 are engine-specific.

Economy: 7 parts, from GPD and HOLSTEIN. A representative part number is GPD 1814555.

The Standard Replacement section: 9 options from GM GENUINE, STANDARD MOTOR PRODUCTS, WELLS and 2 other brands. GM GENUINE 55488246 is listed in this group.

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

One part is listed for the 2021 Cadillac XT5 — DORMAN 66264.

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

7 Thermostat parts for the 2021 Cadillac XT5 come from 2 brands — MOTORAD and FOUR SEASONS.

Heavy Duty: 1 part, from MOTORAD. A representative part number is MOTORAD 5860203.

Standard Replacement: 3 parts, from MOTORAD and FOUR SEASONS. A representative part number is FOUR SEASONS 86343.

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

Part numbers include MOTORAD 5860203, FOUR SEASONS 86343 and MOTORAD 860203, 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

5 Thermostat / Thermostat Housing / Water Outlet Seal parts are listed for the 2021 Cadillac XT5, from GM GENUINE, ELRING, FEL-PRO and 1 other brand. GM GENUINE 12623519 carries the "Popular" badge.

Part numbers include GM GENUINE 12623519, ELRING 048290 and FEL-PRO 36165, among others listed above.

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

4 Thermostat Housing / Water Outlet parts for the 2021 Cadillac XT5 come from 4 brands — SKP, MOTORAD, GATES and 1 other brand.

The Economy section: 1 option from SKP. SKP SKCH1111 is listed in this group.

Standard Replacement: 1 part, from MOTORAD. A representative part number is MOTORAD CH1111.

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

This group includes SKP SKCH1111, MOTORAD CH1111 and GATES CO35087 and the remaining parts 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

4 Water Inlet Gasket parts are listed for the 2021 Cadillac XT5, from GM GENUINE, FEL-PRO and MAHLE / CLEVITE.

Part numbers include FEL-PRO 36167, GM GENUINE 55504553 and GM GENUINE 12647400, among others listed 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

9 Water Pump parts for the 2021 Cadillac XT5 come from 5 brands — GM GENUINE, FVP, US MOTOR WORKS and 2 other brands. The "Popular" part is GATES 43326.

The Economy section: 2 options from FVP and US MOTOR WORKS. FVP US8148 is listed in this group.

The High Volume / Pressure section lists 1 option from GM GENUINE — grouped under the catalog's "High Volume / Pressure" designation — the notes column spells out what sets them apart. GM GENUINE 12738953 is listed in this group.

Standard Replacement: 5 parts, from GM GENUINE, GATES and GMB. A representative part number is GATES 43326.

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

Part numbers include GATES 43326, FVP US8148 and GM GENUINE 12738953, among others listed above.

This table covers the brackets that mount the Water Pump. 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

This group shows a single part: GM GENUINE 55497659.

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

3 Water Pump Gasket parts are listed for the 2021 Cadillac XT5, from ELRING, FEL-PRO and GM GENUINE.

Listed part numbers: ELRING 237160, FEL-PRO 36153 and GM GENUINE 2512072.

This table covers the Water Pump Inlet tubes. Read more

This group shows a single part: GM GENUINE 12706857.

This table covers the Water Pump pulleys. Typical signs include a growl or chirp that follows engine speed, or a pulley that will not spin freely by hand. Spin each pulley with the belt off. Roughness or play means replace it with the belt. Read more

One part is listed for the 2021 Cadillac XT5 — GM GENUINE 12652047.

This table covers the Water Pump Seal 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

3 Water Pump Seal / O-Ring parts for the 2021 Cadillac XT5 come from GM GENUINE.

Listed part numbers: GM GENUINE 12646951, GM GENUINE 12646952 and GM GENUINE 12649987.