Blade Driver Asm [106-3987] for Toro Lawn Equipments

Description:

The metal blade driver assembly attaches to the blade with the guide belt wrapped around it. The spacer will go inside the driver. This part is used in lawn mowers. If the lawn mower wheels will not turn you may need to replace the blade driver. A wrench will be needed to replace this part if it becomes damaged. The driver is available as an individual replacement item and is an original Toro part.

Frequently Purchased With

Mulching Blade..
$27.52

Bolt-Blade
$3.22

Support-Blade..
$10.76

Spacer-Driver..
$3.30

Nut-Lock
$3.46

Compatibility

This part is compatible with the following machines:

Toro

Expand the 150+ compatible machines

Products Compatibility

This item works with the following types of products:

• Lawn Mower

Repair Instructions: Submitted by Customers Like You

11 of 11 people found this instruction helpful

Tool Type:

Lawn Mower

Parts Used:

Blade Driver Asm - 106-3987

Repair Difficulty:

Medium

Time Spent Repairing:

15-30 minutes

Tools Used:

Socket set, Dead Blow Hammer

Blade driver arm split and lost keyway structure.

Remove blade. Tap off old blade driver arm. Place keyway and tap blade driver arm onto shaft. Bolt blade on. You are ready to mow.

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2 of 2 people found this instruction helpful

Tool Type:

Lawn Mower

Parts Used:

Blade Driver Asm - 106-3987

Repair Difficulty:

Hard

Time Spent Repairing:

15-30 minutes

Tools Used:

Socket set, Gear puller, propane torch

Worn drive belt pulley (made belt replacement ineffective).

1. Remove belt guard, blade, and belt.
2. Attach gear puller to blade driver assembly (pulley) utilize the blade bolt as a place to set the puller center button.
3. Apply pressure with a wrench to the puller. The puller may or may not be adequate to remove the pulley. In which case apply heat to the pulley assembly just on the sleeve portion of the assembly in front of the pulley. Keep the heat away from the crankcase to avoid heat damage to the seal.
4. Upon removal of the old assembly, you will find a special spacer inside of it required for the new assembly. It may fall out or you may have to tap it out, but remember you will need it.
5. Reverse the procedure for assembling, use a little anti-seize on the crankshaft and use the blade bolt to draw the driver assembly onto the crankshaft.

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3 of 4 people found this instruction helpful

Tool Type:

Lawn Mower

Parts Used:

Blade Driver Asm - 106-3987

Pulley-Half - 107-3862

V-Belt - 107-3922

Cable-Traction - 107-3917

Repair Difficulty:

Easy

Time Spent Repairing:

15-30 minutes

Tools Used:

Screwdriver, Socket set, Gear puller

Self drive was not working properly.

1. Took the old parts off.
2. Put the new ones on.
3. Had to use a gear puller to remove blade drive assembly.

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Tool Type:

Lawn Mower

Parts Used:

Blade Driver Asm - 106-3987

Spacer-Driver - 106-3999

Repair Difficulty:

Medium

Time Spent Repairing:

15-30 minutes

Tools Used:

Socket set, 32oz hammer

Blade drive assembly

Ruptured drive assembly after running over a well hidden tree stump. Quarter size hole where the keyway used to be. Had to beat the thing with a 32oz
hammer like a mad because of short stroke clearance. ( yes I tried prying with 2x4 and crowbar, dont own a puller big enough). Upon removal I inspected and cleaned the shaft then lubricated it with greaseless spray, inserted the spacer into new drive and aligned the key way and it pushed on about an inch before it stopped cold, placed 2x4 on drive and hit it with aforementioned 32oz hammer like it owed me money, and drive slid right on. Hooked belt and installed blade in the usual way and righted the mower. Let the mower sit for a couple of hours to allow oil to settle, checked oil and gas then cut the grass. BTW pull the plug wire whenever I work on blade end stuff and use cardboard to catch any fluid when turned on side. All in all a $42 repair job on an 8 year old mower beats $400 for a new one.

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Tool Type:

Lawn Mower

Parts Used:

Blade Driver Asm - 106-3987

Repair Difficulty:

Easy

Time Spent Repairing:

Less than 15 minutes

Tools Used:

Pliers

Shield was old and worn and broken

Removed old rod shield with a pair of pliers then removed the trailing shield. Then replaced the trailing shield and inserted the new rod shield threading it through the trailing shield. Less than 5 minutes only used a pair of pliers.

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Tool Type:

Lawn Mower

Parts Used:

Blade Driver Asm - 106-3987

V-Belt - 91-2258

Repair Difficulty:

Medium

Time Spent Repairing:

1-2 hours

Tools Used:

Pliers, Socket set, Wrench Set

Lawn mower was not self-propelling properly

replaced the two parts, then found it was actually the gears on the drive shaft that was causing the problem.

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Tool Type:

Lawn Mower

Parts Used:

Blade Driver Asm - 106-3987

Recycling Blade - 133-8183-03

Repair Difficulty:

Easy

Time Spent Repairing:

30-60 minutes

Tools Used:

Socket set, HAMMER TO REMOVE OLD DRIVER ADAPTER

BLADE DRIVER ADAPTER NEEDED REPLACED ALONG WITH A NEW CUTTING BLADE

PARTS ORDERED FIT PERFECTLY, AFTER REMOVAL OF OLD DRIVER ADAPTER THE NEW PART TAPPED ON THE DRIVE SHAFT WITH THE WELDED IN KEYWAY.. AFTER REPLACING THE BLADE, THE MOWER WAS RETURNED TO IT'S FORMER GLORY AND READY FOR THE NEW CUTTING SEASON

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Tool Type:

Lawn Mower

Parts Used:

Blade Driver Asm - 106-3987

Mulching Blade (22-Inch) - 131-4547-03

Repair Difficulty:

Easy

Time Spent Repairing:

15-30 minutes

Tools Used:

Socket set

Struck a rock and ruined the original blade and drive coupling keyway hub for the front wheel drive

Removed and replaced the mower blade and front wheel drive coupling

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Tool Type:

Lawn Mower

Parts Used:

Blade Driver Asm - 106-3987

Spacer-Driver - 106-3999

Bolt-Blade - 125-2466

Repair Difficulty:

Easy

Time Spent Repairing:

Less than 15 minutes

Tools Used:

Screwdriver, Wrench Set

Blade driver became loose because of a loose bolt and damaged the blade driver assembly and blade bolt.

The new parts were installed (slipped on) very easily. The lawn mower now works and I just mowed the front and back yards.

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1 of 2 people found this instruction helpful

Tool Type:

Lawn Mower

Parts Used:

Blade Driver Asm - 106-3987

Spacer-Driver - 106-3999

Repair Difficulty:

Easy

Time Spent Repairing:

Less than 15 minutes

Tools Used:

Socket set

Blade driver asm broke. Went to sharpen lawn mower and realized spacer-driver was broke and blade driver assembly was broke.

1. Put new parts on with the blade that I had sharpened. Changed oil. Every thing went fine.
Parts diagram for replacement parts was a great help.

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Reviews

Average Rating (out of 5):

6 Reviews

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Easy fix

Parts fit perfectly lawnmower works great.

Guest - July 20, 2022 Verified Purchase

Perfect fit. Back in in working order

Everything was as expected. No trouble installing perfect fit parts. Shipping box was poorly secured. Open at one end with poor taping. Lucky all parts still inside.

Guest - May 15, 2021 Verified Purchase

Replacement of blade driver arm assembly

Being technically challenged, I found the E Replacement parts site was user friendly. Found the necessary part and chose to call in the order . The part arrived in the prescribed 3 day delivery time. My Toro was back in business in about 45 minutes.

Guest - April 9, 2020 Verified Purchase

Mower Repair - DIY

The mower was working okay(?) but making a clanging noise at start up and stop. Took it to my preferred small engine shop and was told it was a warped shaft and not worth the cost to repair. I took the thing apart and found the drive pulley was the culprit. $42 dollars and about one hour later, it was as good as new. I expect to get a few more years service out of the mower!

Guest - March 11, 2020 Verified Purchase

crankshaft hub

arrived quickly and fit like original!

Guest - December 14, 2019 Verified Purchase

Broken Blade Mount

I was truly impressed how well these parts came together to complete a simple and straight forward repair on my Toro self propelled lawn mower. $40 in parts probably saved me $140 in labor/parts had I taken my mower to a Lawn Equipment repair shop. You guys will be my first stop for future repair parts in the future.

Steven - May 26, 2019 Verified Purchase

Verified Purchase

eReplacementParts Team

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