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Type 6 Longer Life Spark Plug (P603)

Featuring the latest thermodynamic design, the new OEM-recommended P603 spark plug lasts up to 3.3 times longer than the previous model for Jenbacher Type 6 engines.

What can this upgrade do for you?

Developed for engines with scavenged pre-combustion chambers, the new spark plug has up to 15 percent lower specific cost per operating hour, is changed just once a year in most cases, and usually needs re-gapping only once during its lifetime, at approximately 2,500 oph.

  • Greater value.
    An up-to-3.3-times longer product life.
  • Cost reduction.
    Up to 15 percent lower spare parts cost over the engine lifespan.
  • Improve re-gapping quality and efficiency.
    The new re-gapping tool is simpler to handle and offers higher accuracy.
  • More uptime. 
    Through longer life and re-gapping interval.
  • Improved thermodynamic design.

How we get you there?

The upgrade to the latest thermodynamic design of our spark plugs can be applied anytime.

Typical engine upgrade scope:

  • Spark plug upgrade 
  • Optional - Spark plug adjustment tool
  • OEM documentation update


Upgrade applicable for all Jenbacher Type 6 E/F/G/H-Versions running on natural gas with a NOx limit of 500 mg/Nm3. The engine must have a TecJet gas quantity controller installed. This is the case for most engines delivered 2007 and later. Simultaneous usage of various types of spark plugs is not possible. Engine adjustment is necessary prior to first use of new spark plug.

Make sure this upgrade is compatible with your engine:

  • Lower Operating Costs
  • Increase Uptime
  • Lifetime & Services Interval Extension


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