Table of Contents
ENGINE / COOLING SYSTEM
COOLING SYSTEM SPECIFICATIONS
COOLING SYSTEM CAPACITY
RZR PRO R
RZR PRO R4
TEMPERATURE SPECIFICATIONS
CONDITION
Room Temperature
Thermostat Begins Opening
Fan Off (when temp decreases
to)
Fan On (fan speed 50%)
(engine running) (when temp
increases to)
Fan On (fan speed 100%)
(engine running) (when temp
increases to)
Thermostat Full Open
Fan On (engine OFF)
* fan will run up to 30 seconds
without engine running
Engine Temperature Overheat
Indicator ON
Engine Protection Torque
Limit
Engine Protection Cylinder
Deactivation
Engine Protection Shutdown
& Overheat Indicator Flashes
3.18
10.4 qt (9.8 L)
12.4 qt (11.7 L)
COOLANT TEMP
° F (° C)
68° F (20° C)
180° F (82° C)
190° F (88° C)
190° F (88° C)
207° F (97° C)
203° F (95° C)
230° F (110° C)
241° F (116° C)
244° F (118° C)
250° F (121° C)
255° F (124° C)
COOLING SYSTEM PRESSURE TEST
1. Remove the coolant bottle cover.
2. Remove pressure cap
using a commercially available pressure tester. The
pressure cap relief pressure is 18 psi. Replace the
cap if it does not meet this specification.
Never remove pressure cap when engine is warm or
hot. The cooling system is under pressure and serious
burns may result. Allow the engine to cool before
servicing.
3. To test the cooling system, connect the pressure
tester to the cooling neck
4. The system must maintain 10 psi for five minutes or
longer. If pressure loss is evident within five minutes,
check the filler neck, radiator, hoses, clamps and
water pump weep hole for leakage.
9940259 R02 - 2022 RZR PRO R / PRO R 4 Service Manual
q
and pressure test the cap
WARNING
w
with the correct adapter.
© Copyright Polaris Industries Inc.
Chapters
Table of Contents
Troubleshooting
