Cummins — 12. install a new gasket. Install the thermostat housing
For these Cummins models: GTA38, GTA38, GTA50, GTA50.
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Procedure
- 14. Install the two upper radiator hoses.
- 15. Tighten the hose clamps to 6 Nem [50 in-Ib].
- Water Pump - Remove and Install
- Preparatory Steps
- 1. Drain the cooling system.
- Remove the Coolant By-pass Tube.
- 2.Loosen the hose clamp. Remove the two cap-
- screws, the lower tube and the gasket.
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.