2003 Bombardier Outlander 400 Factory Service Manual, Page 91Get this manual
Section 03 ENGINE Subsection 05 (COOLING SYSTEM)
Inspection
Check if gasket is brittle, hard or damaged and replace as necessary
WATER PUMP IMPELLER
Removal
Remove: water pump housing no3 impeller no41
R400motr138A
1Gasket
R400motr140A
Installation