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9850068 R01 - 2020-2021 RZR PRO XP / XP 4 Service Manual
© Copyright Polaris Industries Inc.
3.37
INSTALLATION
1. Install the fan and radiator as an assembly.
2. Connect fan harness.
3. Install two fasteners retaining fan assembly. Torque
fasteners to specification.
TORQUE
Fan Assembly Mounting Fasteners:
9 ft-lbs (12 Nm)
4. Connect the two coolant hoses and one vent line
going to the radiator.
5. Install the charge air radiator into the chassis.
6. Install the two large hoses going to the charge air
radiator and the small vent hose.
7. Install the radiator shroud and install six push pins.
8. Install voltage regulator bracket and voltage
regulators as an assembly. Install two fasteners and
torque to specification.
TORQUE
Voltage Regulator Bracket Fasteners:
7 ft-lbs (10 Nm)
9. Connect four voltage regulator harness connectors
(two per voltage regulator).
10.Install front fascia.
TORQUE
Front Fascia Fasteners:
7 ft-lbs (10 Nm)
11. Fill the cooling system. Properly bleed both the
engine cooling system as well as the charge air
cooling system. See Cooling System Bleeding page
2.38.
THERMOSTAT REPLACEMENT
1. Remove the cargo box. See Cargo Box Removal
page 11.20.
2. Remove the intake manifold. See Charge Air Cooler
Removal page 3.32.
3. Place a drain pan under the engine below the
thermostat housing.
4. Remove the two fasteners
t
and
y
retaining the
thermostat cover.
5. Remove the thermostat cover and hose to access the
thermostat
u
. Pull the thermostat up to remove it
from the housing.
6. Install new thermostat into the housing.
CAUTION
Installing the thermostat upside down will damage the
thermostat and lead to engine overheating.
ENGINE / COOLING SYSTEM
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