2021 Jeep Cherokee Coolant Capacity & Type

A 2021 Jeep Cherokee holds between 7.3 and 10.1 quarts (6.9 to 9.6 liters) of coolant, depending on the engine option.

Quick Answer

• Total Cooling System Capacity: 7.3 to 10.1 quarts (6.9 to 9.6 liters)
• OEM Coolant Specification: Mopar OAT (Organic Acid Technology) MS-90032, purple in color.
• Mix Ratio: 50/50 mix of coolant concentrate and distilled water. Pre-mixed formulations are recommended.

Capacity by Engine Option

The 2021 Jeep Cherokee was available with three different engines, each having a slightly different cooling system capacity.

Flush Interval

Jeep specifies a remarkably long service interval for the factory-fill coolant in the 2021 Cherokee.

• Normal Service: 10 years or 150,000 miles (240,000 km), whichever comes first.
• Severe Service: While not explicitly defined for coolant, vehicles that experience frequent short trips, heavy towing, or operation in extreme temperatures may benefit from more frequent inspections, if not a slightly earlier flush interval.

Always inspect the coolant level and condition during routine oil changes. The coolant should be free of debris, rust, or an oily film.

How to Refill & Bleed

Refilling the cooling system on this generation of Cherokee (KL) is critical to get right, as air pockets can easily become trapped, leading to overheating.

1. Use the Right Coolant: Ensure you have a 50/50 mix of an OAT coolant meeting Mopar MS-90032 specifications.
2. Locate the Bleeder Screw: The 3.2L V6 and 2.0L Turbo engines are equipped with a bleeder screw on the thermostat housing to help purge air from the system. The 2.4L engine typically self-bleeds, but the process can be slow.
3. Slow Fill: Add the coolant mixture to the coolant reservoir (de-gas bottle) very slowly to minimize the introduction of air.
4. Bleed the System:
   • For the 3.2L and 2.0L, loosen the bleeder screw until a steady stream of coolant emerges, then tighten it.
   • Run the engine with the heater on high until it reaches operating temperature, allowing the thermostat to open.
   • Let the engine cool completely and re-check the coolant level in the reservoir, topping off as needed. This may need to be repeated a few times.
5. Vacuum-Fill (Recommended): To ensure a complete, air-free fill, using a vacuum-fill tool is highly recommended by most technicians. This tool evacuates all air from the system before introducing new coolant, preventing airlocks.

Common Cooling System Issues (2014-Present Jeep Cherokee KL)

• Radiator Leaks: Seams where the plastic end tanks meet the aluminum core can degrade and leak over time.
• Water Pump Failure: While not rampant, some owners have reported premature water pump failures, identifiable by a coolant leak from the front of the engine or a whining/grinding noise.
• Thermostat Housing Cracks: The plastic housings can become brittle with age and heat cycles, leading to cracks and coolant leaks.

Find a trusted shop on Repairius.