Here is the link to the Limbach service bulletin when they changed from the Bosch WB4A to Eyquem plugs. https://limflug.de/en/support/downloads.php?type=technicalBulletins&id=905.700.051.005.pdf&action=download
....and then they changed to their own Limbach branded plugs. https://limflug.de/en/support/downloads.php?type=technicalBulletins&id=905.700.063.505.pdf&action=download I suspect the changes were for commercial rather than technical reasons. regards Rob Rob Thompson 0429 493 828 On Sat, May 6, 2023 at 6:38 AM Michael Stockhill <[email protected]> wrote: > Oops. The Bosch number is WB4A that I have. > > Michael > > On Fri, May 5, 2023 at 11:56 AM Michael Stockhill <[email protected]> > wrote: > >> My Eyquem A755 spark plugs are aging about the same as me. I am looking >> for a substitute. I have some Bosch EBC G7. Are they suitable? Does >> someone have a suggestion for replacements? >> >> Thanks >> >> Michael Stockhill >> Polson, MT USA >> >
