Lisle Injector Seal Installer Kit 11 pc. — Teflon seal pilots & sizers for 6mm/7.5mm stems

This compact 11-piece kit provides the pilot cones, pushers and sizers needed to install replacement Teflon seals cleanly and reliably. Designed to work with a wide range of injector stem diameters (6 mm and 7.5 mm) and many Ford ECO/direct-injector designs, the tools guide the seal over the injector tip, push it into the locating groove and compress it to the correct outer diameter for reinstallation into the cylinder head.

How do I use the kit to start and seat a new Teflon seal?

Begin by placing the pilot cone on the injector tip so the new seal can be slipped onto the cone. Use the installer/pusher to slide the seal along the cone and seat it into the groove on the injector tip. Finally, place the sizer over the installed seal to compress it back to the specified OD so the injector fits into the bore smoothly.

• Place pilot cone on injector tip to guide seal.
• Push seal along cone using installer until seated in groove.
• Fit sizer to compress seal to correct outer diameter.
• Compatible with 6 mm and 7.5 mm injector stems.

Which vehicle and injector types are compatible with this set?

The kit fits many Hitachi, Bosch, Continental and Delphi injectors used on numerous Ford, GM and Subaru models. It's confirmed for many GM engines from 2010 onward (including 1.4L–6.2L families) and Subaru 2.0L/2.4L turbo engines from the mid-2010s, plus Ford injectors 2011 and newer. It also supports many Ford ECO direct-injector styles.

• GM engines: 2010 and later across multiple displacements (1.4L–6.2L).
• Subaru: 2014–2019 2.0L and 2.4L turbo engines.
• Ford: injectors from 2011 onward, including many ECO units.
• Works with injectors using 6 mm and 7.5 mm stems.

What advantages does this installer kit offer over improvised methods?

Using the proper pilot cones, pushers and sizers reduces the risk of nicking the injector tip or deforming the seal while installing, which can lead to leaks or premature failure. The kit restores the seal's outer diameter so the injector seats and seals correctly in the cylinder head without forcing or cutting the seal. That controlled process speeds service time and lowers the chance of injector damage.

• Reduces risk of injector tip damage during installation.
• Ensures consistent seal compression to correct OD for proper fitment.
• Saves time compared with trial-and-error or makeshift tools.
• Suitable for repeated workshop use when replacing Teflon seals.

What should I check before buying or using this kit?

Confirm your injector stem diameter (6 mm or 7.5 mm) and cross-reference the injector manufacturer to ensure fit. Verify the engine application years listed match your vehicle, and inspect replacement seals for correct material and dimensions before pressing them onto an injector. If unsure, compare your injector tip dimensions and groove style to images or measurements from the kit supplier.

• Measure injector stem diameter to confirm 6 mm or 7.5 mm fit.
• Cross-check injector maker (Hitachi, Bosch, Continental, Delphi) and vehicle year.
• Confirm replacement Teflon seals are correct size and material.
• Keep the kit clean to prevent contamination of fuel-system components.

Who is this for: Professional technicians and DIYers who service direct and port fuel injectors and need a reliable, repeatable way to install Teflon injector seals. This kit is best for garages working on Ford, GM and Subaru engines where injector seal replacement is routine, and for anyone seeking a safer alternative to improvised installers that can damage injectors or seals.