Easy
15-30 minutes
The metal pinion is an authentic Toro part that has been sourced from the original manufacturer to be used with lawnmowers. This item attaches to the transmission axle and interconnects with the drive wheel gear to rotate the wheel in unison with the shaft. The pinion gear is available as an individual replacement part.
Pinion Gear 65-4750
OEM part for: Toro
Part Number: 65-4750
$12.44
In Stock
Ships within 1 business day 
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Compatibility
This Pinion Gear will fit the following 780 machines. Confirm this part works with your model, and view the detailed model diagrams and repair help we have to offer.
This item works with the following types of products:
- Lawn Mower Parts
This part replaces obsolete part #: 614438
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Drive gears for toro mower
The two parts came quickly. Next time I need a part for the mower I know where to go.
Guest -
May 11, 2022
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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.
Lawn mower left drive wheel was not driving properly.
Patrick - August 16, 2017
👍 2 of 3 people found this instruction helpful
Tool Type
Lawn Mower
Difficulty
Easy
Time
15-30 minutes
Tools Used
Screwdriver, Pliers, Socket set, Wrench Set
1. Removed the rear wheel assemblies.
2. Removed the drive mechanism retaining c-clip on both rear wheels.
3. Removed the drive mechanisms.
4. Replaced the parts listed above and completed the repair on both rear wheels.
Note: Washer-Clutch and Ring-friction are the most common wear problems but, I replaced most everything since the mower was 7-yr old and still running very good.
2. Removed the drive mechanism retaining c-clip on both rear wheels.
3. Removed the drive mechanisms.
4. Replaced the parts listed above and completed the repair on both rear wheels.
Note: Washer-Clutch and Ring-friction are the most common wear problems but, I replaced most everything since the mower was 7-yr old and still running very good.
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Rear drive wheel gear and pinion were engaging intermittently due to the wobbling of the wheels. Wobbling of the wheels was caused by excess wear to the wheel bushings.
Daniel - July 22, 2017
👍 1 of 1 people found this instruction helpful
Tool Type
Lawn Mower
Difficulty
Easy
Time
30-60 minutes
Tools Used
Screwdriver, Pliers, Socket set
Removed rear wheel shoulder bolt.
Removed the rear wheel.
Removed the plastic drive gear housing.
Removed pinion gear retaining clip.
Removed the pinion gear.
I replaced other parts on the ends of the wheel drive shaft, but it was not actually necessary.
Installed the new pinion gear.
Installed the pinion gear retaining clip.
Installed the plastic drive gear housing.
Greased the wheel gears, pinion gears, wheel bushings and shoulder bolts liberally.
Replaced the wheel.
Replaced the shoulder bolt.
Removed the rear wheel.
Removed the plastic drive gear housing.
Removed pinion gear retaining clip.
Removed the pinion gear.
I replaced other parts on the ends of the wheel drive shaft, but it was not actually necessary.
Installed the new pinion gear.
Installed the pinion gear retaining clip.
Installed the plastic drive gear housing.
Greased the wheel gears, pinion gears, wheel bushings and shoulder bolts liberally.
Replaced the wheel.
Replaced the shoulder bolt.
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Drive system failed
Terry - June 30, 2022
Tool Type
Lawn Mower
Difficulty
Medium
Time
30-60 minutes
Tools Used
Screwdriver, Pliers, Socket set
Parts Used
Removed wheels , removed gear cover , flatwasher , snap ring , and gear....install new gear with ratchet drive keys and plate ...install remaing parts in order of removal....lube drive assembly when reassembled
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Products okay but internet schematic was poor.
Russell - September 17, 2021
Tool Type
Lawn Mower
Difficulty
Medium
Time
15-30 minutes
Tools Used
Screwdriver, Pliers, Socket set
Took parts off and laid them in a line as I removed. Opened the new parts bags and placed the next to the old parts. Then systematically installed the parts substituting new parts for old.
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Self repell not working
PETER - July 24, 2020
Tool Type
Lawn Mower
Difficulty
Easy
Time
30-60 minutes
Tools Used
Socket set, Adjustable Wrench
Replace the missing and broken parts, with the new parts. The mower running like new.
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No problem with product!
Leslie - July 19, 2020
Tool Type
Lawn Mower
Difficulty
Medium
Time
15-30 minutes
Tools Used
Socket set, Wrench Set, No additional tools
Removed rear wheel replaced lost parts!
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Old Gear and related parts displaced while mowing
Mike - June 12, 2019
Tool Type
Lawn Mower
Difficulty
Easy
Time
Less than 15 minutes
Tools Used
Pliers, Socket set
Installed new purchased parts. Used schematic provided on ereplacement parts website
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OEM stands for Original Equipment Manufacturer and means the part you’re buying is sourced directly from the manufacturer who made your product. At eReplacementParts, we sell only genuine OEM parts, guaranteeing the part you’re purchasing is of better design and of higher quality than aftermarket parts.
Our product descriptions are a combination of data sourced directly from the manufacturers who made your product as well as content researched and curated by our content & customer service teams. This content is edited and reviewed internally before being made public to customers.
Our customer service team are at the ready daily to answer your part and product questions. We have a dedicated staff with decades of collective experience in helping customers just like you purchase parts to repair their products.
All our part reviews are solicited directly from other customers who have purchased this exact part. While we moderate these reviews for profanity, offensive language or personally identifiable information, these reviews are posted exactly as submitted and no alterations are made by our team.
All our customer repair instructions are solicited directly from other customers just like you who have purchased and replaced this exact part. While we moderate these reviews for profanity, offensive language or personally identifiable information, these reviews are posted exactly as submitted and no alterations are made by our team.
Based on data from past customer purchasing behaviors, these parts are most commonly purchased together along with the part you are viewing. These parts may be necessary or helpful to replace to complete your current repair.
All our installation videos are created and produced in collaboration with our in-house repair technician, Mark Sodja, who has helped millions of eReplacementParts customers over the last 13 years repair their products. Mark has years of experience in selling and repairing both commercial and residential products with a specialty in gas-powered equipment.
This data is collected from customers who submitted a repair instruction after replacing this exact part. Customers can rate how easy the repair was to complete and how long it took. We aggregate this data to provide a repair rating that allows customers to quickly determine the difficulty and time needed to perform their own repair.
