The Series 60 heat exchanger-cooled marine engine uses a tube-and-shell style fuel cooler mounted with connector hoses and clamps on the inlet side of the raw water pump. The fuel cooler is a brazed assembly and cannot be disassembled. It should be removed and inspected for plugging and damage once a year and replaced every four years, regardless of apparent condition. Replace sooner if severe plugging or damage is indicated.
| 1. Engine Block | 4. Bolt |
| 2. Mounting Plate | 5. Fuel Cooler |
| 3. Washer |
