Lisle Injector Seal Installer Kit — 11 pc Teflon seal tools for Hitachi, Bosch, Continental injectors, 6 & 7.5 mm sizing

This 11-piece kit gives technicians and home mechanics the pilot cones, pushers and sizers needed to slide Teflon seals onto injector tips, push them into the retention groove and then compress the seal back to the correct outer diameter for installation into the cylinder head. Designed to work with a wide range of modern injector stems, the kit saves time and reduces the risk of nicks or misaligned seals that cause leaks or poor seating.

How does the kit fit and install Teflon injector seals?

The process starts by mounting the pilot cone on the injector tip so the new seal can be threaded over the tapered end without folding. The installer tool then pushes the seal down and seats it into the groove on the injector tip. Finally, the sizer compresses the seal back to the correct outer diameter so the injector slides into the cylinder head cleanly.

• Pilot cones guide seals onto the tip without rolling or tearing.
• Pushers seat the seal uniformly into the injector groove.
• Sizers restore the seal’s OD for proper cylinder-head fitment.

What injectors and engines is this kit compatible with?

This Lisle set works on many Hitachi, Bosch, Continental and Delphi fuel injectors commonly found on Ford, GM and Subaru engines. It also supports many Ford ECO injectors and a variety of direct-injection systems introduced in the 2010s.

• Common GM applications: 2010+ engines including 1.4L, 1.5L, 2.0L, 2.4L, 2.5L, 3.0L, 3.6L, 4.3L, 5.3L and 6.2L.
• Specific GM coverage: 2010–2017 2.0L, 2.5L, 3.6L, 5.3L and 6.2L engines.
• Subaru coverage: 2014–2019 2.0L and 2.4L turbo engines.
• Ford coverage: many 2011 and newer injectors, including many ECO designs.
• Fits injector stems with 6 mm and 7.5 mm diameters.

Why use a dedicated installer and sizer instead of improvised tools?

Improvised methods risk cutting or rolling thin Teflon seals, causing leaks or premature failure. The Lisle tools are shaped to protect the seal lip, keep the seal concentric, and compress to an accurate outer diameter so the injector seats correctly in the cylinder head bore.

• Prevents seal deformation that causes fuel or vacuum leaks.
• Speeds seal replacement with repeatable, uniform results.
• Reduces chance of damage to expensive injectors during service.

Who is this for: The Lisle Injector Seal Installer Kit — 11 pc — is intended for professional technicians, independent shops and knowledgeable DIYers who service fuel injectors on modern Ford, GM and Subaru engines. If you routinely replace Teflon injector seals or rebuild injectors, this kit streamlines seal installation, protects delicate materials, and helps ensure reliable injector seating and performance. Note: Always confirm injector manufacturer and stem diameter before use and follow vehicle-specific service procedures; this tool aids mechanical installation but does not replace OEM torque, lubrication or diagnostic steps.

• Feature: Works on many Ford ECO injectors