Yanmar 3JH4E Service Manual page 27

1.general
(5) Quality guarantee period for exhaust emission related parts
For exhaust emission related parts, follow the inspections outlined in the "List of Periodic Inspections",
on the operation manual, and use the table below to carry out inspections based on operation hours or
time in years. Whichever comes first is the guarantee period.
19 kW < 37 3000 hours or 5 years
The specific emissions-related parts are
(a) Fuel injection nozzle
(b) Fuel injection pump
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