6.7L Cummins Cooling System – Water Pump – Clean and Inspect for Reuse

Clean the water pump with solvent. Dry with compressed air.

Clean the sealing surface on the cylinder block.

Clean the o-ring sealing surface on the water pump housing.
Inspect the sealing surface for damage. Replace the water pump if any damage is found.

NOTE: If any damage to the impeller blades is found, make sure to inspect the cylinder block for damage.
Inspect the impeller for cracks, missing blades, slippage on the shaft, and other types of damage.
Inspect the water pump housing for damage and cracks.
Replace the water pump if any damage is found.