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If you have a service or maintenance issue,
please contact:
Westport Service
1-888-WPT-HPDI
1-888-978-4734
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| Base Engine1 |
24 |
250,000 |
6,250 |
| HPDI Injectors |
24 |
125,000 |
3,125 |
| LNG Components2 |
24 |
250,000 |
6,250 |
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- Engine components exclusive of the HPDI system fuel injectors
- The liquefied natural gas storage and delivery system
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Westport LNG System maintenance is scheduled with standard
diesel engine maintenance intervals, minimizing extra
maintenance costs.
| M0 |
Daily |
— |
Routine pre-trip
inspections:
oil, fuel, fan belts, air system |
Check LNG fuel level
Check gas detection alarms
Check for leaks or frost |
| M1 |
750 |
25,000 |
Replace oil
Replace diesel filter |
Detailed leak test with
gas detector
Inspect high-pressure accumulator |
| M2 |
1,500 |
50,000 |
Replace coolant filter
Check intake and exhaust systems |
Service LNG pump (single
tank system)
Replace diesel fuel pump belt
Replace gas filters
Check gas detection system sensors |
| M3 |
— |
50,000 – 75,000 |
Replace coalescing
filter |
— |
| M4 |
3,000 |
120,000 |
Check for leaks
Check mounting bolts
Check vibration damper
Clean engine |
Service injectors
Service diesel pump
Service fuel conditioning module
Service LNG pump (dual tank systems)
Replace natural gas filter elements
Replace hydraulic filter |
| M5 |
6,250 |
250,000 |
— |
Service LNG tank
(A-service) |
| M6 |
— |
200,000 – 400,000 |
Service particulate
filter |
— |
| M7 |
10,000 |
500,000 |
Adjust engine brake
Check and re-set valve train
Clean air compressor |
Service hydraulic pump
Service LNG tank (B-service)
Inspect pressure relief valves |
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Maintenance schedule may change over time. Check with Westport Service for the latest schedule updates.
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