Shopping Cart

Your cart is empty.

Your cart is empty.

E-cowlboy Flywheel Locking Tool with 36mm 3/4’’ Socket for 6.6L Duramax

Free shipping on orders over $29.99

$17.50

$ 7 .99 $7.99

In Stock
  • Benefits -- Locks flywheel in place when removing harmonic balancer on 6.6L Duramax engines with Allison automatic transmissions. Saving time than removing the starter for water pump replacement.
  • Duramax 2500 / 3500 Pickups – Use toothed pieces only removes 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.
  • Duramax 4500 / 5500 Trucks -- Use toothed pieces with screws 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.
  • 36mm Socket -- 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.


Nice Locking tool:
Lock flywheel in place when removing harmonic balancer on 6.6l duramax engines with Allison automatic transmissions.

Superior material:
Made of CRV steel, which is heavy duty and is able to anti-rust and resist corrosion, ensure an unparalleled long term trouble-free service.

Easier work:
This tool slips into place under an easily removable inspection plate. Worked great at holding the engine solid while loosened (and tightened) the crank pulley on duramax(nearly 300 ft-lbs tight.)

How to use:
Toothed pieces only----Work with Duramax 2500 / 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.

Toothed pieces with screws---- Work with Duramax 4500 / 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.

Forged 36mm socket----- Remove harmonic balancer bolt and re-torque on installation. 36mm 12 point socket can also be used on axle.


Benjean Moses
2025-09-02 11:44:56
Nice quality and the kit made it easy.Work as it should and made the job much easier.Amazon messed up on shipping and I had to reorder, which tied up my shop for an extra week.
Terry S.
2025-08-23 17:31:05
Worked good 👍🏻
Ruy
2025-07-26 11:04:33
Worked perfectly, very useful tool and good quality.
Rudy
2025-06-22 15:45:27
Tool worked perfectly for my water pump replacement. I was surprised the socket didn’t explode on how tight the crank bolt was.
Sean M
2025-06-18 13:20:33
Great price! Works as designed with no flaws. Made removal of the balancer on my LML easy!
Jordan
2025-06-05 11:24:26
This a must have for a LLY duramax, make sure you have a 3/4” prybar for the 36mm you will need it!
gladys lopez
2025-05-31 15:47:27
WORKED JUST LIKE IT SUPPOSED TO. CAME WITH THE SOCKET AND 2 CHOICES OF WAYS TO HOLD THE FLEXPLATE. WOULD DEFINATLY RECOMMEND
Sugarbear
2025-02-28 12:25:41
Product was used on an 08 lmm duramax. Worked as it should.
Cambo
2025-02-10 09:51:32
as advertised
Mr. C
2025-01-25 17:55:57
Came earlier then anticipated, seems to be of high quality, I'll update when I get my water pump installed and let you know how it worked, but from all the reviews I don't expect any issues with it! Would highly recommend! Best wishes to all that need or use this product! Thanks. Update, July 23 2024, Worked as it should did the job; to bad I put the harmonic balancer on backwards, so it did it twice!!! YEESH!!!!
Derek
2025-01-23 10:35:41
Good price. Worked perfectly to hold flywheel so I could torque the crank pulley bolt.
Rob
2024-12-30 09:11:47
Don’t do job with out it. Was so easy to use and really helped with holding engine from turning
Michel Renaud
2024-12-12 13:48:15
Quick delivery and worked to break the balancer bolt on my 2005 Duramax so that I could change my water pump.