Part Location Diagram of 105-6840 Toro Thrust Washer
See part H-6 in the diagram
( Grid squares measure 1x1 inch )

Thrust Washer 105-6840

Manufactured by:
Toro
ERP Number:
ERP8827528
Part Number:
105-6840
Original Equipment Manufacturer ?
  Works with your model  20003!
In Stock
Delivers in 3-5 Business Days!
Minimum Quantity of 2 required

Easy 

30 - 60 mins 

(14 rated repairs) ?
  Works with your model   20003!

Product Description

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This is a genuine OEM sourced replacement part designed for use with lawn mowers. This thrust washer helps to secure the pinion gear. It helps to distribute the pressure evenly and provides a tight seal for the connecting pieces. It is made out of metal and it is sold individually. Replacing this washer you would need a wrench and pliers.

Frequently Purchased Together

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Troubleshooting

This part works with the following brands:
  • Toro
  • Lawn Boy
This part works with the following products:
  • Lawn Mower
Part# 105-6840 replaces these:
105-6840,

Customer Part Reviews

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Questions & Answers

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Customer Repair Instructions

All our customer repair instructions are solicited directly from other customers just like you who have purchased and replaced this exact part.

Easy 

30 - 60 mins 

(14 rated repairs) ?
  • 1
  • 2
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Self propelled was not working due to worn down pinion gears.

Greg from Overland Park, Kansas

12 of 12 people found this instruction helpful.
Difficulty Level:
Easy
Total Repair Time:
15 - 30 mins
Tools:
Pliers, Screw drivers, Socket set
1. Disconnected spark plug. Removed grass bag. Raised mower up on wooden 2x4s to access back wheels (did not tilt mower).
2. Removed left wheel with a socket set.
3. Removed ring clip with screw driver and needle nose pliers.
4. Removed pinion gear and thrust washer while holding down key on shaft. Quickly examined condi tion of key and didn\'t replace.
5. Replaced with new pinion gear, new thrust washer and new ring clip. Slid pinion gear on with L on outside (facing direction you would be standing to use mower), thrust washer and put on gloves to push ring clip onto shaft. The pinion gears have L and R engraved on them and are interchangeable.
6. Replaced old wheel with new wheel. Gears on old wheel were worn too. Used socket set to reinstall wheel.
7. Repeated for the right side.
8. Tested and self propelled worked. Although the left wheel would not move when I backed up. I had the tension too tight on the self propelled cable. Loosen nut near handle and eased back on the tension in the cable. Mower backs up and self propelled works like new. Mower is about 12-14 years old and is a Toro Personal Pace.
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Drive gear components were missing/spring for key was broken

Craig from Wake Forest, North Carolina

10 of 10 people found this instruction helpful.
Difficulty Level:
A Bit Difficult
Total Repair Time:
15 - 30 mins
Tools:
Socket set
Parts Used:
65-2720, 612066, 39-9650, 105-6840
Removed wheel, cleaned the axle, used a pick to pull the old damaged spring from its hole, Installed new components and reassembled.
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Self propel not working

Richard from Fultondale, Alabama

6 of 6 people found this instruction helpful.
Difficulty Level:
A Bit Difficult
Total Repair Time:
1- 2 hours
Tools:
Pliers, Screw drivers, Socket set
When we investigated the reason for the self-propel not working, we found numerous parts missing and the gear off the shaft. Replaced parts and reassembled and thankfully it is working like a charm. Just followed the parts diagram. And take your time.
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Rear wheel fell off.

Jeff from Sandy, Utah

6 of 6 people found this instruction helpful.
Difficulty Level:
A Bit Difficult
Total Repair Time:
15 - 30 mins
Tools:
Screw drivers
First I removed the shoulder bolt with the impact wrench. Then removed the wheel. Removed the clip ring, then the thrust washer. I then removed the pinion gear just by pulling it off. Replace the old thrust washer, clip ring, and thrust washer. To assemble just reverse the order of the tear down.
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I\'m not sure exactly what happened. My wife called me and said that the tire exploded. The plastic hub had twisted up like a straw.

Bert from Layton, Utah

3 of 3 people found this instruction helpful.
Difficulty Level:
Easy
Total Repair Time:
Less than 15 mins
Tools:
Pliers, Socket set
I set the lawn mower up on blocks. Installed the spring, set the shafts key over the spring, slid the gear over top. Put the washer in place, used needle nose pliers to lock in the snap ring, put the tire on and used a 1/2\" socket to tighten up the tire. Very easy.
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Wheel Cover Asm broke allowing foreign material into wheel drive gear causing displacement of gear and retaining parts.

L from Fort Collins, Colorado

2 of 2 people found this instruction helpful.
Difficulty Level:
Easy
Total Repair Time:
15 - 30 mins
Tools:
Pliers, Socket set
Parts Used:
65-2720, 612066, 110-1793, 105-6840
LawnBoy lawnmower with rear drive wheels:
Disassembled the other drive wheel (one bolt) to determing which parts were missing from the other broken side and how it should be re-assembled. Once again have two rear drive wheels! Easy fix. Thank you eReplacementParts for providing PayPal payment option and quick delivery.
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Wheel and drive gear came apart

Donald from Venice, Florida

2 of 2 people found this instruction helpful.
Difficulty Level:
Easy
Total Repair Time:
15 - 30 mins
Tools:
Pliers, Screw drivers, Socket set
Parts Used:
105-3036, 65-2720, 612066, 105-6840
Nothing to difficult. You have the other side(wheel assembly) to guide you.
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Someone had removed the gears in the wheels so it didn\'t have any self propel motion

kenneth from Columbus, Ohio

1 person found this instruction helpful.
Difficulty Level:
A Bit Difficult
Total Repair Time:
30 - 60 mins
Tools:
Pliers, Screw drivers, Socket set
Parts Used:
65-2720, 105-6840, 105-3040
Remove the wheel by removing the bolt holding it on to the mower. Then remove the wheel. Install the thrust washers on the shaft, then the gear, then place the clip ring on the end of the shaft and replace the wheel.
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Front wheels would not move with axle

Timothy from Middleburg, Florida

0 of 1 people found this instruction helpful.
Difficulty Level:
Easy
Total Repair Time:
15 - 30 mins
Tools:
Nutdriver, Pliers, Socket set
Removed front wheels, drive gears, key and spring. Thrust washers were broken along with locking ring clip.
Replaced wheel bears just because I had the front end apart.
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Rear wheel pinion and wheel gears were shot.

Robert from Exeter, New Hampshire

0 of 1 people found this instruction helpful.
Difficulty Level:
A Bit Difficult
Total Repair Time:
30 - 60 mins
Tools:
Pliers, Screw drivers, Socket set
Removed rear wheels
Removed and replaced pinon gears and other parts as needed
Replaced new rear wheels
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Model Cross Reference

This part works with the following models:
ERP Number: ERP8827528
Manufacturer Part Number: 105-6840
Brand Model Number Description
Lawn Boy 10655 Lawn Mower - Gold Series Lawnmower
Lawn Boy 10656 Lawn Mower - Gold Series Lawnmower
Lawn Boy 10672 Lawn Mower - Insight Gold Lawn Mower
Lawn Boy 10673 Lawn Mower - Insight Gold Lawn Mower
Lawn Boy 10682 Lawn Mower - Insight Lawn Mower
Lawn Boy 10684 Lawn Mower - Insight Lawn Mower
Lawn Boy 10684C Lawn Mower - Insight Lawn Mower
Lawn Boy 10685 Lawn Mower - Insight Lawn Mower
Lawn Boy 10686 Lawn Mower - Insight Lawn Mower
Lawn Boy 10686C Lawn Mower - Insight Lawn Mower
Lawn Boy 10687 Lawn Mower - Insight Lawn Mower
Lawn Boy 10695 Lawn Mower - Insight Gold Lawn Mower
Lawn Boy 10696 Lawn Mower - Insight Gold Lawn Mower
Lawn Boy 10696C Lawn Mower - Insight Gold Lawn Mower
Lawn Boy 10697 Lawn Mower - Insight Gold Lawn Mower
Lawn Boy 10995 Lawn Mower - Insight Gold Lawn Mower
Lawn Boy 10997 Lawn Mower - Insight Gold Lawn Mower
Toro 20001 Lawn Mower - Lawn Mower
Toro 20003 Lawn Mower - Lawn Mower
Toro 20005 Lawn Mower - Lawn Mower
Toro 20007 Lawn Mower - Lawn Mower
Toro 20012 Lawn Mower - Lawn Mower
Toro 20013 Lawn Mower - Lawn Mower
Toro 20014 Lawn Mower - Lawn Mower
Toro 20016 Lawn Mower - Lawn Mower
Toro 20017 Lawn Mower - Lawn Mower
Toro 20018 Lawn Mower - Lawn Mower
Toro 20019 Lawn Mower - Lawn Mower
Toro 20031 Lawn Mower - Lawn Mower
Toro 20041 Lawn Mower - Lawn Mower