General Motors/Subaru GM-51105 SIDI Injector Seal Installer Adapters Alternative
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Tillman GM‑51105 Fuel Injector Seal Installer Guide Set — Long & Short Pilots for LGE Engines Alternative
The Tillman GM‑51105 Fuel Injector Seal Installer Guide Set is engineered for precise installation of the dual-injector-tip seals used on 2013‑later GM LGE family engines equipped with the Bosch SIDI system. These engines use two critical seals on each injector tip, and both must be installed in their correct grooves and sized to specification before the injector is installed in the cylinder head.
The GM‑51105 set includes two dedicated installation pilots—one long and one short—designed to guide each seal over the injector tip without catching on machined edges, welded tip ends, or slipping into the wrong groove. When used with the EN‑49245 seal pusher and sizer, technicians can correctly install and compress each seal to its engineered dimension, ensuring proper fitment and leak‑free operation.
Key Features
- Designed for Bosch SIDI systems on 2013‑later GM LGE engines
- Includes two seal installation pilots (long and short)
- Prevents seal damage during installation
- Ensures seals enter the correct grooves cleanly
- Works with GM‑49245 seal pusher and sizer for proper compression
- Supports leak‑free injector operation and long‑term reliability
Set Includes
- GM‑51105‑1 — Long Seal Installer Guide Alternative
- GM‑51105‑2 — Short Seal Installer Guide Alternative
1588-L, AM-EN-51105
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