Cummins — 3. Lubricating oil fill - 10. Provision for lubricating oi! immersion heater
A Cummins service procedure — check it applies to your exact model before use.
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Procedure
- 5. Water outlet 12. Provision for coolant heater.
- 6. Lubricating oil filter
- 7. Water inlet
Source: manual:Cummins Diesel B Series Manual 2003 (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.