Yoursme Injector Puller & Tube Remover Set for GM 6.6L Duramax (2001–2021) — Steel, Corrosion-Resistant

Yoursme injector pullers (6778, 6779) and the 7222 injector tube remover are precision steel tools for safely removing and reinstalling fuel injectors and injector tubes on GM 6.6L Duramax diesel engines (2001–2021).

If you're working on a GM Duramax 6.6L engine, having the correct pullers and tube remover speeds the job and reduces the risk of damage to injector cups, heads, and tubes. This set mirrors the function and fit of OE service tools J-44639, J-4659 and J-45910, offering a cost-effective alternative built from black-coated steel for corrosion resistance and long service life. The tools cover model-year variations with 6778 designed for 2001–2004 injectors, 6779 for 2005–2011 injectors, and 7222 to remove and reinstall injector tubes across 2001–2021 Duramax engines.

How do these tools protect the injector and cylinder head during removal?

The 6778 and 6779 injector pullers are engineered to grip and extract injectors without putting force on the injector cup or surrounding head surfaces. Their geometry prevents common pry or wedge mistakes that can warp cups or scar the head sealing surface. Using the correct puller avoids additional repairs and preserves proper sealing for reinstallation.

• Dedicated puller profiles for early and later Duramax injector shoulders
• Even axial extraction reduces sideways stress on the cup
• Works with standard threaded attachment points for secure fit-up

What does the 7222 injector tube remover/installer do and when should I use it?

The 7222 tool is made to remove and reinstall the injector tubes used on GM 6.6L Duramax engines during routine maintenance or injector replacement. It aligns with factory service procedure to extract the tube cleanly and guides the new or cleaned tube into position for correct seating. Use it any time injector tubes must be serviced to avoid bending, marring, or improper seating.

• Removes tube without deforming the tube ends or sealing surfaces
• Assists controlled reinstallation for reliable sealing
• Compatible across Duramax 2001–2021 applications

Are these Yoursme tools durable and safe for repeated shop use?

Yes — each tool is fabricated from robust steel and finished with a black protective coating to resist corrosion, wear, and shop fluids. The materials and coating extend service life and keep tolerances stable through repeated use. Backed by a one-year warranty and customer support, they’re intended for both occasional DIY use and regular shop workloads.

• Solid steel construction for strength under extraction loads
• Black surface finish for rust resistance and easier cleaning
• 1-year warranty and accessible customer service from Yoursme

How do I pick the right injector puller for my Duramax model year?

Selection depends on the injector shoulder design used in your engine year. The 6778 fits 2001–2004 Duramax injectors while the 6779 fits 2005–2011 injectors; the 7222 covers tube removal for the full 2001–2021 range. Match your engine year and inspect injector geometry before ordering to ensure proper engagement.

• 2001–2004: use Yoursme 6778 injector puller
• 2005–2011: use Yoursme 6779 injector puller
• 2001–2021: use Yoursme 7222 for injector tube removal/installation

Who this is for: Professional diesel technicians, independent shops, and experienced DIYers who service GM 6.6L Duramax engines and want OE-style tool function without OEM price tags. If you perform injector swaps, diagnose drivability issues, or routinely service injector tubes, this set reduces repair time and helps prevent costly damage during disassembly and reassembly.