EN-51955 Alternative Injector Seal Installer & Sizer Tool Set
Works on injector 55515113(2.0L) & 12733960(2.7L)
Applications:
- Acadia 2.0L:2020, 2021, 2022
- Blazer 2.0L: 2020, 2021, 2022
- CT4 2.0L: 2020, 2021, 2022
- CT4 2.7L: 2020, 2021, 2022, 2023
- CT5 2.0L: 2020, 2021, 2022
- Envision 2.0L: 2021, 2022
- Sierra 2.7L: 2019, 2020, 2021, 2022
- Silverado 2.7L: 2019, 2020, 2021, 2022
- XT4 2.0L: 2019, 2020, 2021, 2022
- XT5 2.0L: 2020, 2021, 2022
- XT6 2.0L: 2021, 2022
Emission requirements are driving a change to a 6 mm injector tip instead of the current 7.5 mm tip on most GM SIDI gasoline fuel systems. This change is due to both higher fuel pressures and packaging constraints, and affects SGE, LGE and future V8 engines.
Injector seals are installed using EN-51955, which includes two protectors due to placement of the two injector seals, a seal pusher to ensure the seals are not over-stretched on installation, an initial seal compressor due to the hardness of the seals, and a seal sizer to put the seal at the final 6.5mm size for installation into the head. Installing the seals without using EN-51955 will damage the seals and could result in fuel or combustion pressure leaks
17-C