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ENGINE / COOLING
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9924096 - 2013 RANGER RZR XP 900 / RZR XP 4 900 Service Manual
© Copyright 2012 Polaris Sales Inc.
Water Pump Service
NOTE: The water pump cover gasket can be
replaced while the water pump housing is still
installed in the engine.
1. Remove water pump assembly as outlined in this
chapter.
2. Remove the (3) bolts retaining water pump cover (A)
to water pump housing (B). Discard cover gasket (C).
3. Place the water pump drive tab (D) vertically into a soft
jaw vice.
4. Remove the bolt and washer retaining the water pump
impeller to the shaft. Inspect the impeller veins and
water pump housing for damage. Replace if needed.
NOTE: The water pump impeller bolt is left hand
thread (reverse thread).
5. Remove impeller from water pump shaft.
6. Using an appropriate arbor press, properly support
the water pump housing and press out the water pump
shaft from the impeller side.
7. Extract the mechanical seal and the oil seal from the
water pump housing.
NOTE: A 5/32" (4 mm) diameter punch will fit in the
lubrication slot to aid in the removal of the oil seal.
Be sure not to damage the water pump shaft bearing
surface.
8. Inspect the water pump shaft bore for excessive wear
or damage. Replace water pump housing assembly if
necessary.
9. Clean and inspect water pump shaft for excessive
wear or damage. Replace water pump housing
assembly if necessary, as shaft can not be purchased
separately.
10. Thoroughly clean mechanical seal and oil seal bores.
11. Install a NEW oil seal into the water pump housing
until fully seated.
12. Fully install the water pump shaft and (2) washers into
the housing.
13. Place water pump drive tab vertically into soft jaw vice
as previously shown in this procedure.
14. Install a NEW mechanical seal into the water pump
housing using special tool PU-50564. Press the new
mechanical seal in until it is flush with the water pump
housing.
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