Lisle 22100 Flywheel Holder & Socket Duramax


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MSRP: $59.53
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Lisle 22100 Flywheel Holder & Socket Duramax


  • 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 re-torque on installation.
  • 36mm 12 point socket can also be used on axle nuts.

Sold Individually:

Part Number Description
 22090  36mm 12 pt. Socket
 22110  Duramax P/U Flywheel Lock
 22120  Duramax 4500/5500 Flywheel Lock


WARNING: Cancer and Reproductive Harm


Lisle Manufacturer Warranty

All products have a lifetime warranty to be free from defects in material and workmanship. Warranty does not apply to misuse, abuse, neglect, accident, improper use, etc.