7664292 Guascor biogas spark plug (Siemens S7664761)
Guascor spark plugs / Siemens spark plug
This biogas spark plug is specially designed for the Guascor SFGLD biogas engines, but also can be used in the Guascor SFGM series. New part number Siemens S 76.64.761
Spark Plugs Replacement Guide
| 1200rpm | 1500rpm | 1800rpm | |||||
| REF | HOURS | REFERENCE DOCUMENT | HOURS | REFERENCE DOCUMENT | HOURS | REFERENCE DOCUMENT | |
| FG/ FGLD natural gas | 76.64.291 | 1250 | IO-G-M-00-073 | 1000 | IO-G-M-00-074 | ||
| 76.64.375 | 5000 | 4000 | |||||
| FG/ FGLD biogas (*) | 76.64.292 | 1250 | IO-G-M-00-073 | 1000 | IO-G-M-00-074 | ||
| 76.64.375 | 5000 | 4000 | |||||
| SFGLD natural gas | 76.64.375 | 4500 | IO-G-M-00-067 | 3750 | IO-G-M-00-065 | 3000 | IO-G-M-00-066 |
| SFGLD natural gas ISLAND | 76.64.375 | 7500 | IO-G-M-00-057 | 6000 | IO-G-M-00-038 | 4500 | IO-G-M-00-058 |
| SFGLD natural gas PRIME | 76.64.292 | 1000 | IO-G-M-00-061 | ||||
| SFGLD natural gas STAND-BY | 76.64.292 | 1000 | IO-G-M-00-019 | ||||
| SFGLD biogas (*) | 76.64.292 | 1250 | IO-G-M-00-067 | 1000 | IO-G-M-00-065 | 1000 | IO-G-M-00-066 |
| 76.64.375 | 4500 | 3750 | 3000 | ||||
| SFGLD natural gas LCR 9,3:1 | 76.64.292 | 1250 | IO-G-M-00-034 | 1000 | IO-G-M-00-024 | 800 | IO-G-M-00-035 |
| 76.64.375 | 5000 | 4000 | 3200 | ||||
| SFGLD natural gas LCR 8:1 | 76.64.292 | 2000 | IO-G-M-00-024 | 1600 | IO-G-M-00-035 | ||
| SFGLD syngas (**) | 76.64.292 | 800 | IO-G-M-00-042 | 700 | IO-G-M-00-003 | 600 | IO-G-M-00-043 |
| 76.64.375 | 4000 | 3500 | 3000 | ||||
| SFGRD natural gas | 76.64.292 | 1000 | IO-G-M-00-062 | ||||
| SFGRD natural gas PRIME | 76.64.292 | 1200 | IO-G-M-00-063 | ||||
| SFGRD natural gas STAND-BY | 76.64.292 | 1000 | IO-G-M-00-064 | ||||
| HGM natural gas | 76.64.604 | 3500 | IO-G-M-00-072 | 3500 | IO-G-M-00-070 | 3500 | IO-G-M-00-071 |
| HGM biogas | 76.64.604 | 3500 | IO-G-M-00-072 | 3500 | IO-G-M-00-070 | 3500 | IO-G-M-00-071 |
| SFGM natural gas | 76.64.685 | 3000 | IO-G-M-00-068 | 3000 | IO-G-M-00-069 | ||
| SFGM natural gas ISLAND | 76.64.685 | 4800 | IO-G-M-00-051 | 4800 | IO-G-M-00-059 | ||
| SFGM biogas | 76.64.685 | 3000 | IO-G-M-00-068 | 3000 | IO-G-M-00-069 | ||
| SFGM propane | 76.64.356 | 3000 | IO-G-M-00-040 | 3000 | IO-G-M-00-041 | ||
| SFE ethanol | 76.64.292 | 4800 | IO-L-M-00-001 | ||||
In case the engine is operating at variable speed always select your spark plugs in reference with the highest speed range.
(*) In case the variation of the LHV of the utilized biogas exeeds 10 per cent it is recommended to used 76.64.292 (S7664761) spark plugs.
(**) In case of very contaminated gas it is recommended to use 76.64.292 (S 76.64.761) spark plugs.
Verified 2021 February
