22100 Flywheel Locking Tool with 36mm 3/4’’ Socket for 6.6L Duramax Engines (2500/3500 & 4500/5500) – CRV Steel Tool Kit with Plastic Storage Case – for 6.6L Duramax Harmonic Balancer Removal Tool

Duramax Flywheel Locking Tool for 6.6L Engines – Specially designed to lock the flywheel in place for 6.6L Duramax engines equipped with Allison automatic transmissions. Essential for tasks like harmonic balancer bolt removal or water pump replacement without removing the starter motor—saving you significant time and effort.

Dual Fitment Modes for Multiple Vehicle Classes – For Duramax 2500/3500 pickups, remove the spring-loaded metal inspection plate and insert the toothed piece into the flywheel teeth. For 4500/5500 trucks, use the toothed piece with screws after removing the rubber inspection cap—providing precise fitment across multiple platforms.

Complete OEM-Grade Maintenance Kit – Offers the strength and reliability of OEM tools, plus the convenience of a packaged solution that includes all required components and storage. A high-performance, high-value tool for anyone working on Duramax diesel engines.

Multi-Use Compatibility – Designed for flywheel locking, harmonic balancer servicing, water pump replacement, and axle nut removal—combining multiple essential repair needs in a single, compact kit.

Includes 36mm 12-Point Socket with 3/4" Drive – Comes with a 36mm 12-point socket engineered to remove and re-torque the harmonic balancer bolt easily. Compatible with axle nuts, making it a versatile addition to your toolbox for other drivetrain or suspension jobs.

Durable & Portable Storage Case Included – Comes in a heavy-duty molded plastic box, protecting the tool from damage and making it easy to store or transport in mechanic tool carts or truck compartments.

Industrial-Grade CRV Steel, Heat-Treated & Lab-Tested – This tool is forged from premium chromium-vanadium steel (CRV) and heat-treated to withstand extreme torque pressure. Tested in factory settings for over 300+ flywheel engagements at 450 ft-lbs torque with zero deformation or corrosion. Its black oxide coating ensures superior resistance against rust and wear in harsh environments.

Built for Heavy-Duty Reuse – Engineered for durability and repeated professional usage. Whether you're a mechanic handling fleets or a DIYer servicing your own truck, this tool holds up over years of intense use.

No Starter Removal Required – Save Time on Maintenance – Avoid the frustrating step of starter motor removal during water pump service. This tool provides direct crankshaft access, cutting repair time nearly in half while improving safety and accessibility.

Warranty Included for Peace of Mind: All products come with a 12-month warranty against quality-related issues and a 30-day money-back guarantee, ensuring that you can buy with confidence. Our dedicated customer service team is ready to assist you.