Cooling System

Content Source: 2021 Indian Challenger Owner’s Manual (9931587 R01) > Maintenance Chapter

IMPORTANT

The Owner's Manual for this vehicle contains warnings, instructions and other information you must read and fully understand before safely riding or performing maintenance on this vehicle.Always follow the warnings and instructions in Owner's Manual.

Click the CONTENTS link above for the Table Of Contents, or download a full PDF of the Owner Manual in the Owner Support area of Polaris.com

Cooling System

The engine coolant level is controlled by the recovery system. Recovery system components are the recovery bottle, the radiator filler neck, the radiator pressure cap and the connecting hose.

As coolant operating temperature increases, the expanding (heated) excess coolant is forced out of the engine, past the pressure cap, and into the recovery bottle. As engine coolant temperature decreases the contracting (cooled) coolant is drawn back up from the bottle, past the pressure cap, and into the radiator.

Some coolant level drop on new vehicles is normal as the system is purging itself of trapped air. Check the coolant level and maintain as recommended by adding coolant to the recovery bottle.

INDIAN MOTORCYCLE recommends the use of Antifreeze 50/50 Premix. This antifreeze is already premixed and ready to use. Do not dilute with water.

To ensure that the coolant maintains its ability to protect the engine, we recommend that the system be completely drained every five (5) years or 50,000 miles, whichever comes first. Please see your dealer for this service.

caution

Allow the vehicle to cool before performing any maintenance on the cooling system. Failure to do so could result in burns to skin.

Coolant Level Inspection

The Coolant Overflow bottle is located under the driver seat. The level can be viewed without the need to disassemble any components.

Remove right-hand saddlebags. See Saddlebags.
Sight underneath the fender, above the drive belt to the coolant bottle.
With the motorcycle vertical (not on the side stand), ensure coolant level is above the minimum line and below the frame strut .
If the coolant level is below the bottom line, coolant will need to be added to the system.

Adding Coolant

To add coolant, do the following:

Remove the seat and rubber lid.
Remove he overflow bottle cap to add coolant. Add coolant until level is within the marked values.

NOTICE

The rubber and formed nylon can be left connected while performing this procedure.

caution

Do not fill the coolant bottle to full. 0.3 L of air must remain in the bottle to account for thermal expansion. Failure to do so can result in coolant overflow.