Cummins — 8. Remove the four cap-screws that hold the adapter

For these Cummins models: GTA38, GTA38, GTA50, GTA50.

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Procedure

1. 9. Remove the four cap-screws that hold the pump to
2. the water pump drive.
3. 10. Remove the pump and the coupling.
4. 11. Remove the plate from the pump.
5. 12. Remove and discard the o-ring and gasket.
6. 13. Check the water pump for reuse.

Source: manual:Cummins Gas GTA38-50 Manual 1999 (2).pdf. Figures and steps are as documented; always cross-check against the official manual and any later revisions for your exact serial number before servicing.