2019 Jeep Cherokee — Coolant Capacity & Type

The 2019 Jeep Cherokee holds roughly 7.5 to 12.0 quarts (7.1–11.4 liters) of coolant total, depending on engine and options.

Quick answer

• Total system capacity: about 7.5–12.0 qt (7.1–11.4 L), engine-dependent
• OEM coolant: Mopar Antifreeze/Coolant 10 Year/150,000 Mile OAT — purple, OAT chemistry, FCA spec MS-12106 (do not mix with older orange HOAT MS-9769)
• Mix ratio: 50/50 (premixed is preferred). If using concentrate, mix 50/50 with distilled water (approx. −34°F/−37°C freeze protection)

Capacity by engine option

Notes: Capacities vary with trim, tow package, and heater core/radiator options. Always measure what drains out and be prepared with extra premix.

Flush interval

• Normal service: 10 years or 150,000 miles (240,000 km) for the factory OAT coolant
• Severe service (frequent towing, extreme heat/cold, heavy idling, dusty/off‑road use): consider 5–6 years or 60,000–100,000 miles, with periodic visual checks of coolant clarity and freeze‑point testing
• After initial replacement: follow the same 5–6 year cadence and test annually. Replace sooner if contamination, corrosion, or mixed coolants are suspected

Tip: Never mix purple Mopar OAT (MS‑12106) with the older orange HOAT (MS‑9769) or universal/silicated coolants—cross‑mixing can gel or accelerate corrosion.

How to refill & bleed

1. Start cold. Raise the front of the vehicle slightly for the degas bottle to sit at the high point. Set the heater to full hot.
2. Drain: Open the radiator drain (if equipped) or remove the lower radiator hose. Catch and measure what you remove. Close/reattach securely.
3. Fill: Use Mopar OAT MS‑12106 50/50 premix. Slowly fill via the degas bottle to the “MAX COLD” line. If using concentrate, pre‑mix with distilled water.
4. Bleed air:
   • Preferred: Vacuum‑fill the system to avoid trapped air (especially recommended on 2.0T and 3.2L).
   • Gravity/manual bleed: Some engines have a bleed screw near the thermostat housing/upper hose. If equipped, crack it open while filling until a steady coolant stream (no bubbles) appears, then close.
5. Warm‑up: Cap the bottle, start the engine, and let idle. Bring engine speed to ~2,000 rpm in short intervals until the thermostat opens and the upper hose gets hot. Watch for steady cabin heat and stable gauge.
6. Cool down and top off: Shut off, let cool fully, and top off the degas bottle to the “MAX COLD” line. Recheck over the next few drive cycles; add small amounts as any remaining air purges.

Safety: Use only the correct pressure cap. Dispose of old coolant properly—ethylene glycol is toxic.

Common cooling system issues (2019 Cherokee KL)

• Air pockets after service: These engines are sensitive to trapped air, causing intermittent heat or hot‑running. Use a vacuum filler or the bleed screw (if present) and recheck the level after a few heat cycles.
• Water pump seep/leaks: More common as mileage climbs, especially on the 3.2L Pentastar. Look for pink/purple crust near the pump weep hole or front cover.
• Thermostat housing and outlet leaks: Plastic housings can warp or crack on higher‑mileage 2.4L/3.2L units. Coolant odor after shutdown or crust at the housing is a giveaway.
• Radiator end‑tank seepage: The plastic/aluminum crimp can weep at the seams. Check for dried residue along the side tanks.
• Reservoir cap/pressure loss: A weak cap can lower boiling margin and cause coolant loss without obvious leaks. Replace with the correct cap if you notice bubbling or repeated low‑coolant messages.
• Coolant contamination from mixing types: The purple OAT is not compatible with older orange HOAT or “universal” green. Cross‑mixing can form sludge, clog heater cores, and degrade seals—flush thoroughly if mixed.

If you’re unsure of your exact engine or build, verify by VIN and consult the under‑hood label or factory service info before ordering coolant.

Find a trusted shop on Repairius.