Description Commonly Used on models: 90080 Oiler Gear Case Assembly - 22mm 90081 Oiler Gear Case Assembly - 35mm 90083 Oiler Gear Case Assembly - 35mm 90084 Oiler Gear Case Assembly - 22mm PPF-2100 Type 1E S/N: 509500 - 999999 PPFD-2400 Type 1E S/N: 501001 - 999999 PPSR-2122 Type 1E S/N: 505000 - 999999 PPSR-2433 Type 1E S/N: 504000 - 999999 PPT-2100 Type 1E PPT-230 S/N: 03001001 - 03999999 PPT-230 S/N: 04001001 - 04999999 PPT-230 S/N: 05001001 - 05999999 PPT-230 S/N: 06001001 - 06999999 PPT-230 S/N: 07001001 - 07999999 PPT-231 S/N: 02001001 - 02999999 PPT-231 S/N: 06001001 - 06999999 PPT-2400 Type 1E PPT-260 S/N: 03001001-03999999 PPT-260 S/N: 04001001-04999999 PPT-260 S/N: 05001001-05999999 PPT-260 S/N: 06001001-06999999 PPT-260 S/N: 07001001-07999999 PPT-261 S/N: 02001001-02999999 PPT-261 S/N: 06001001-06999999