2020 GMC Yukon 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 2020 GMC Yukon, 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 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 hard pipes and extra hoses in the coolant circuit. Read more

4 Coolant Hose / Pipe parts are listed for the 2020 GMC Yukon, from ACDELCO, DAYCO, GATES and 1 other brand.

Part numbers include ACDELCO 84919470, DAYCO 80302 and GATES 12117, among others listed above.

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

GM GENUINE supplies the 3 Coolant Hose Retainer / Clip parts for the 2020 GMC Yukon.

Listed part numbers: GM GENUINE 23129954, GM GENUINE 23129953 and GM GENUINE 15041309.

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

5 Coolant Reservoir parts for the 2020 GMC Yukon come from 5 brands — GM GENUINE, DORMAN, GPD and 2 other brands. The "Popular" part is GM GENUINE 84368362.

This group includes GM GENUINE 84368362, DORMAN 603973 and GPD 2411170 and the remaining 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 2020 GMC Yukon come from 6 brands — DORMAN, MOTORAD, AUTOTECNICA and 3 other brands. The "Popular" part is DORMAN 54218.

Part numbers include DORMAN 54218, MOTORAD T46 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 2020 GMC Yukon.

Part numbers include MOTORAD 3128 and MOTORAD 3127.

This table covers the Hose clamps. Read more

GM GENUINE supplies both parts for the 2020 GMC Yukon.

This group includes GM GENUINE 90530642 and GM GENUINE 11611361.

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

15 Radiator parts are listed for the 2020 GMC Yukon, from GM GENUINE, GPD, DENSO and 6 other brands. DENSO 2219638 carries the "Popular" badge.

Economy: 2 parts, from GPD. A representative part number is GPD 13723C.

The Standard Replacement section: 13 options from GM GENUINE, DENSO, CSF and 5 other brands. DENSO 2219638 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

One part is listed for the 2020 GMC Yukon — ACDELCO RC118.

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

8 Radiator Fan Assembly parts for the 2020 GMC Yukon come from 7 brands — GM GENUINE, SKP, GPD and 4 other brands. The "Popular" part is SKP SK621619.

The Economy section: 3 options from SKP, GPD and VARIOUS MFR. SKP SK621619 is listed in this group.

Standard Replacement: 5 parts, from GM GENUINE, AGILITY, TYC and 1 other brand. A representative part number is AGILITY 6010288.

Listed part numbers: SKP SK621619, GPD 2811983 and VARIOUS MFR GM3115264, plus the other parts above.

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

One part is listed for the 2020 GMC Yukon — SKP SK959280.

This table covers the shrouds that duct air through the fan and radiator. Read more

GM GENUINE supplies both parts for the 2020 GMC Yukon.

This group includes GM GENUINE 23123635 and GM GENUINE 23390829.

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

12 Radiator Hose parts for the 2020 GMC Yukon come from 6 brands — ACDELCO, GATES, CONTINENTAL and 3 other brands. The "Popular" part is ACDELCO 22805L.

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

This group shows a single part: GM GENUINE 20970408.

This table covers the Radiator insulators. Read more

This group shows a single part: GM GENUINE 25955679.

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

This group shows a single part: GM GENUINE 10121502.

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 2020 GMC Yukon, from STANDARD MOTOR PRODUCTS, WALKER PRODUCTS, GPD and 8 other brands. STANDARD MOTOR PRODUCTS TX89T carries the "Popular" badge.

Economy: 4 parts, from STANDARD MOTOR PRODUCTS, GPD, HOLSTEIN and 1 other brand. A representative part number is STANDARD MOTOR PRODUCTS TX89T.

In the Full Service Kit grade, WALKER PRODUCTS supplies 1 part: grouped under the catalog's "Full Service Kit" designation — the notes column spells out what sets them apart. A representative part number is WALKER PRODUCTS 21191118.

The Standard Replacement section: 8 options from GM GENUINE, STANDARD MOTOR PRODUCTS, BOSCH and 5 other brands. GM GENUINE 2134333 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

13 Thermostat parts for the 2020 GMC Yukon come from 9 brands — MOTORAD, ACDELCO, AUTOTECNICA and 6 other brands. The "Popular" part is ACDELCO 1511125G.

The Economy section: 3 options from AUTOTECNICA, DORMAN and SKP. AUTOTECNICA GM0720814 is listed in this group.

The Performance section lists 1 option from MOTORAD — engineered beyond original-equipment specification. MOTORAD MRD108 is listed in this group.

Standard Replacement: 9 parts, from MOTORAD, ACDELCO, CALORSTAT and 3 other brands. A representative part number is ACDELCO 1511125G.

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 2020 GMC Yukon, from GM GENUINE, APEX, FEL-PRO and 2 other brands. GM GENUINE 12620318 carries the "Popular" badge.

This group includes GM GENUINE 12620318, APEX AWO2386 and FEL-PRO 36106 and the remaining parts above.

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

4 Thermostat Housing / Water Outlet parts for the 2020 GMC Yukon come from 3 brands — SKP, GPD and VEMO.

Part numbers include GPD 8241554, SKP SK34836 and SKP SK9022090A, 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

14 Water Pump parts for the 2020 GMC Yukon come from 10 brands — US MOTOR WORKS, SKP, FVP and 7 other brands. The "Popular" part is SKP SK1303020.

The Economy section: 9 options from US MOTOR WORKS, SKP, FVP and 2 other brands. SKP SK1303020 is listed in this group.

Standard Replacement: 5 parts, from ACDELCO, GATES, AISIN and 2 other brands. A representative part number is ACDELCO 2521027.

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

8 Water Pump Gasket parts are listed for the 2020 GMC Yukon, from GM GENUINE, APEX, FEL-PRO and 1 other brand. GM GENUINE 2512066 carries the "Popular" badge.

Listed part numbers: GM GENUINE 2512066, GM GENUINE 2512065 and APEX AWP3308, plus the other parts above.

This table covers the Water Pump housings. Read more

2 Water Pump Housing parts are listed for the 2020 GMC Yukon, from GM GENUINE and SKP.

Listed part numbers: GM GENUINE 12685257 and SKP SK12685257.