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Product Description

EWK 36mm 3/4 Inch Flywheel Locking Holder Water Pump Holding Tool for Duramax 6.6L Engine
Locks flywheel in place when removing harmonic balancer on 6.6L Duramax engines with Allison automatic transmissions.
Durable Quality
- Made of quality CR-V Steel with a manganese phosphate coating to resist rust and corrosion.
- Come with flywheel holding tool and harmonic balancer socket, equivalent to factory tool OEM numbers : AM-J-44643-S, AM-J-44643-A and AM-J-44643-B.
Time Saver
- Locks flywheel in place when removing harmonic balancer, saving time than removing the starter for the water pump replacement.
Application
- Suitable for 6.6L Duramax engines with Allison automatic transmissions.
- The flywheel locking tools work with Duramax 2500 / 3500 pickups and 4500 / 5500 trucks.

Duramax 2500 & 3500 Flywheel Holder
- Remove the spring-loaded inspection plate on the bottom of the transmission. Slide the tool into the opening toward engine with the top of the tool engaging the teeth of the flywheel.

Duramax 4500 & 5500 Flywheel Holder
- 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 tighten the bolt to hold the tool in place.

36mm 12 point Socket
- Use with a 3/4" square drive wrench to remove and install harmonic balancer bolt. The size is specially designed while other sockets are too long to fit.



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Customer Reviews |
4.5 out of 5 stars 156
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4.5 out of 5 stars 156
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SKU No. | EB0224 | EB0225 |
Feature | Removes and installs the water sensor. | Removes and installs the water sensor. |
Application | 2001-2011 6.6L Duramax diesel engines | 2012 and newer 6.6L Duramax diesel engines |
christy
2025-08-20 15:01:20
Perfect easy to use and very nice quality. My husband really likes this.
Dave's wife
2025-06-23 12:53:15
This tool kit is a must have if you are doing the water pump on a GM Duramax
LA
2025-06-07 19:31:05
Great package deal and make the super simple. I just don't understand why the engineers couldn't have simply used a standard head on the crank bolt, but this socket fits the build. The flywheel lock makes it quick and EZ
hagells
2025-06-02 21:59:28
Very easy to use. Very strong materials. Fit right in with no issues. Glad I made the purchase.
Necro
2025-05-29 18:53:14
Does what it’s supposed to. Socket is 3/4 drive.
darrin
2025-04-26 16:57:07
Worked perfectly did what it was made for
Tio Tiko
2025-04-19 17:16:46
Works perfect and as intended highly recommended at least for my application on an lb7 Duramax
Trevor
2025-04-17 16:11:48
Item was perfect , worked like expected no issues through entire purchase . Very pleased 100 %
Gerald
2025-01-23 15:46:35
Took too long to get to me. It is useless now
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