Yoursme Duramax 6.6L Injector Puller & Tube Remover Set — 6778/6779 Pullers + 7222 Tube Tool, Steel Coated Corrosion-Resistant

Yoursme injector pullers (6778, 6779) plus the 7222 injector tube remover are steel service tools engineered to extract injectors and remove/reinstall injector tubes on GM 6.6L Duramax diesel engines.

These three tools cover the most common service needs on Duramax 6.6L engines from 2001 through 2021. The 6778 and 6779 injector pullers are made to separate the injector from the cylinder head without disturbing the injector cup, while the 7222 tube remover focuses on safely extracting and reinstalling the injector tube. All components are formed from coated steel to resist corrosion and provide a long service life, and they match the fit and function of common factory part numbers used in professional shops.

How do these tools make injector service quicker and safer?

Using the right extractor and tube remover minimizes the chance of damaging the injector cup, tube, or cylinder head during service. These tools give controlled leverage and a precise fit so you can remove components without excessive force or improvised methods that risk costly repairs.

• Purpose-built geometry yields consistent pull force and alignment.
• Steel construction keeps the tool rigid under load for even extraction.
• Coated finish reduces rusting so tools perform reliably over many jobs.

Which Duramax years and models will they fit?

Each tool targets specific year ranges of the GM 6.6L Duramax engine family. Confirm the engine year and service access before purchase to ensure compatibility. When matched correctly, they replace or mirror the performance of commonly referenced shop tools.

• 7222 tube remover: fits GM 6.6L Duramax engines from 2001 through 2021.
• 6778 injector puller: designed for 2001–2004 Duramax 6.6L engines.
• 6779 injector puller: designed for 2005–2011 Duramax 6.6L engines.

Are these tools true replacements for factory service tools like J-45910 or J-46594?

Yes—these Yoursme tools are engineered to match the function and fit of the referenced factory tools so you can perform comparable procedures. They give shops and DIYers a cost-effective alternative while preserving the intended service method and tooling interface.

• 7222 mirrors the operation of J-45910 for tube removal and installation.
• 6778 and 6779 replicate the pull action associated with J-46594-style extractors.
• Designed to avoid altering the injector cup during removal, maintaining reusability.

What are the material and warranty details?

The set is constructed from heavy-duty steel and finished with a protective black coating to guard against corrosion and everyday shop wear. Yoursme backs the tools with a one-year warranty and accessible customer support for product questions or warranty service.

• Solid steel body for strength and consistent performance.
• Black protective surface coating to reduce rust and extend life.
• 1-year warranty and responsive customer service for peace of mind.

Who is this for? These tools suit professional mechanics, independent diesel shops, and experienced DIYers who work on GM 6.6L Duramax engines and want durable, shop-grade extractors and tube removers without the premium cost of factory-only tooling. If you perform injector maintenance, rebuilds, or cylinder-head repairs and need reliable, repeatable results—these tools provide the correct fit, solid construction, and warranty support to make the job faster and safer.