Detroit Diesel — Procedure

A Detroit Diesel service procedure — check it applies to your exact model before use.

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Procedure

1. Fuel Outlet Line
2. Fuel Filter Housing
3. Unit Pump
4. Mechanical Gauge
5. Fuel Pump
6. Fuel Outlet Line
7. Mechanical Gauge
8. Fuel Filter Housing

Source: manual:mbe_4000_ddec_vi.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.