Lisle 22100 6.6L Duramax Flywheel Locking Tool 36 MM 12 PT IMPACT SOCKET 3/4" DR


1 in stock



6.6L Duramax Flywheel Locking Tool Kit

• Locks flywheel in place when removing harmonic balancer on 6.6L Duramax engines with Allison Automatic Transmissions.
• Saves time by locking the flywheel at the transmission instead of having to remove the starter for water pump replacement.
• On 2500 and 3500 pickups, remove metal spring-loaded inspection plate on the bottom of the transmission. 
• Tool should slide into opening toward engine with the top of the tool engaging the teeth of the flywheel. 
• On 4500 and 5500 trucks, remove the rubber inspection cap on the bottom of the transmission.
• Insert the tool at the front of the opening to engage the flywheel and hand tighten bolt to hold tool in place. 
• Use 36mm 12-point socket with 3/4″ square drive to remove harmonic balancer bolt and retorque on installation.
• Includes 36mm 12 pt. Socket, Duramax P/U Flywheel Lock, Duramax 4500/5500 Flywheel Lock, Socket Head Cap Screw

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Additional information

Weight 64.00 oz
Dimensions 12 × 6 × 3 in


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