2021 Jeep Grand Cherokee 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 Jeep Grand Cherokee, from PRESTONE, VALVOLINE, PEAK and 2 other brands. FVP MV5050GAL carries the "Popular" badge. All of them fit every engine offered in the 2021 Grand Cherokee.

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 2 options from VALVOLINE and PRESTONE — rated for severe service. VALVOLINE ZXG051 is listed in this group.

The Premium section lists 5 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 5 options from VALVOLINE, AISIN and PEAK — built to original-equipment specification. VALVOLINE ZXEL1 is listed in this group.

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

MOPAR supplies the 8 Coolant Hose / Pipe parts for the 2021 Jeep Grand Cherokee.

Listed part numbers: MOPAR 68264816AC, MOPAR 68244857AB and MOPAR 68316519AA, plus the other parts above.

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

This group shows a single part: ELRING B63130.

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 086460.

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

11 Coolant Reservoir parts for the 2021 Jeep Grand Cherokee come from 5 brands — MOPAR, DORMAN, GPD and 2 other brands. The "Popular" part is DORMAN 603002. 2 parts fit every engine; the other 9 are engine-specific.

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 2021 Jeep Grand Cherokee come from 3 brands — MOTORAD, CALORSTAT and DORMAN. 2 parts fit every engine; the other 2 are engine-specific.

This group includes CALORSTAT RC0144, DORMAN 54201 and MOTORAD T73 and the remaining parts above.

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

2 Cooling System Tester Adapter parts are listed for the 2021 Jeep Grand Cherokee, from GATES and MOTORAD.

Listed part numbers: GATES 31413 and MOTORAD 3003.

This table covers the Hose clamps. Read more

MOPAR supplies the 8 Hose Clamp parts for the 2021 Jeep Grand Cherokee. MOPAR 55056415AA carries the "Popular" badge. 1 part fits every engine; the other 7 are engine-specific.

Listed part numbers: MOPAR 55056415AA, MOPAR 4592176 and MOPAR 4809147AA, plus the other parts above.

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

40 Radiator parts are listed for the 2021 Jeep Grand Cherokee, from MOPAR, CSF, TYC and 10 other brands. CSF 3544 carries the "Popular" badge. Grades run from Economy through Standard Replacement; Standard Replacement is the most populated section, led by MOPAR, CSF, TYC and 8 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

11 Radiator Cap parts are listed for the 2021 Jeep Grand Cherokee, from MOTORAD, GATES, MOPAR and 1 other brand. MOTORAD ST18 carries the "Popular" badge.

The Locking Replacement section lists 2 options from MOTORAD and GATES — grouped under the catalog's "Locking Replacement" designation — the notes column spells out what sets them apart. MOTORAD ST18 is listed in this group.

The Standard Replacement section: 4 options from MOTORAD, CALORSTAT, GATES and 1 other brand. MOTORAD T18 is listed in this group.

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

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

This group shows a single part: DORMAN 61145.

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

19 Radiator Fan Assembly parts for the 2021 Jeep Grand Cherokee come from 11 brands — MOPAR, DORMAN, VEMO and 8 other brands. The "Popular" part is DORMAN 621498.

The Economy section: 7 options from DORMAN, SKP, GPD and 3 other brands. DORMAN 621498 is listed in this group.

Standard Replacement: 12 parts, from MOPAR, TYC, UAC and 3 other brands. A representative part number is TYC 624540.

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 2021 Jeep Grand Cherokee come from 5 brands — MOPAR, CONTINENTAL, GATES and 2 other brands. The "Popular" part is CONTINENTAL 66837.

This table covers the Radiator insulators. Read more

2 Radiator Insulator parts for the 2021 Jeep Grand Cherokee come from TECHPRO. Every part fits all 4 engine options (3.6L V6, 5.7L V8, 6.2L V8 Supercharged and 6.4L V8).

Part numbers include TECHPRO CH3013103 and TECHPRO CH3013104.

This table covers the brackets that mount the Radiator Mount. 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

2 Radiator Mount Bracket parts for the 2021 Jeep Grand Cherokee come from MOPAR. Every part fits all 4 engine options (3.6L V6, 5.7L V8, 6.2L V8 Supercharged and 6.4L V8).

Part numbers include MOPAR 68543804AA and MOPAR 68543805AA.

This table covers the Radiator Mount bushings. Typical signs include a clunk over bumps, or a torn or walked-out bushing you can see. Press the new bushing square. A cocked bushing will tear in a few thousand miles. Read more

6 Radiator Mount Bushing parts for the 2021 Jeep Grand Cherokee come from 2 brands — MOPAR and DORMAN. The "Popular" part is DORMAN 927288.

Listed part numbers: DORMAN 927288, DORMAN 927289 and MOPAR 68497512AA, plus the other parts above.

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

11 Radiator Seal parts for the 2021 Jeep Grand Cherokee come from MOPAR. The "Popular" part is MOPAR 68408300AB. 6 parts fit every engine; the other 5 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

19 Temperature Sender / Sensor parts are listed for the 2021 Jeep Grand Cherokee, from STANDARD MOTOR PRODUCTS, MOPAR, GPD and 8 other brands. DORMAN 926427 carries the "Popular" badge. 1 part fits every engine; the other 18 are engine-specific.

Economy: 7 parts, from GPD, HOLSTEIN, DORMAN and 2 other brands. A representative part number is DORMAN 926427.

The Standard Replacement section: 12 options from MOPAR, STANDARD MOTOR PRODUCTS, WALKER PRODUCTS and 4 other brands. DELPHI TS10330 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

25 Thermostat parts for the 2021 Jeep Grand Cherokee come from 9 brands — MOTORAD, CALORSTAT, MOPAR and 6 other brands. The "Popular" part is SKP SK121424. 2 parts fit every engine; the other 23 are engine-specific.

The Economy section: 2 options from SKP and DORMAN. SKP SK121424 is listed in this group.

Heavy Duty: 3 parts, from MOTORAD. A representative part number is MOTORAD 5416203.

The Performance section lists 3 options from MOTORAD — engineered beyond original-equipment specification. MOTORAD 2416160 is listed in this group.

Premium: 2 parts, from MOTORAD. A representative part number is MOTORAD 7416203.

Standard Replacement: 14 parts, from MOTORAD, CALORSTAT, MOPAR and 3 other brands. A representative part number is GATES 34053.