Medium
15-30 minutes
It is a genuine OEM supplied item which is made for walk-behind lawn mowers. This is a high-quality replacement for a missing or a damaged pinion gear that helps to drive the mower's wheel. Unfortunately, over time due to friction, the teeth on the gear may wear out. If this happens it will no longer engage the wheel and the mower will not move. To ensure the exact location and the correct installation of the new part, refer to the diagrams of your specific model. Note, one durable metal pinion is included. You will need a wrench set and pliers to remove the old pinion and secure the new one.
Pinion 532403849
OEM part for: Husqvarna, Poulan
Part Number: 532403849
$6.21
In Stock
Order within the next 3 hours and your part ships today! 
Jump To:
Frequently Purchased Together ?
Compatibility
This Pinion will fit the following 704 machines. Confirm this part works with your model, and view the detailed model diagrams and repair help we have to offer.
Displaying 20 of 704 matching models.
704 total model matches. Try the above search to narrow your results.
This is the official OEM part for the following brands:
- Craftsman
- Husqvarna
- Jonsered
- Poulan
- Weed Eater
This item works with the following types of products:
- Lawn Mower
- Lawn Tractor
- Snowblower
This part replaces obsolete part #: 750003, 5327500-03, 403849, 532750003
Repair Videos ?
Watch the Repair Video for
Pinion
Customer Part Reviews ?
Average Rating (out of 5):
Click to filter by ratings:
5 stars
13
4 stars
2
3 stars
0
2 stars
0
1 stars
0
< PREV
- 1
- 2
Part worked as expected
Husband repaired our lawnmower with these parts. The wheels needed straightening. Thank you.
Guest -
September 26, 2022
Verified Purchase
perfect parts
Great condition, fast shipping, super service.
Guest -
May 9, 2022
Verified Purchase
Always need more data
Because the background 1" matrix gave me an idea of size of this 14 tooth spur gear, we were able to order with confidence in that we are using it on the "landing Gear" crank-up scissors jack on a 1937 Talbo Lago Rocker panel installed car jack. Not many people are aware of this counter intuitive searching. More parts should have dimensions displayed. I used a dishwasher heater pump to recirculate hot water in my shower. Ingenuity seeks more information. NOW you have helped restore a classic car! Get smarter! MORE DATA, please.
Guest -
January 18, 2022
Verified Purchase
Perfect Fit
Excellent quality at a good price. Perfect replacement - popped old one off and new one on in about three minutes.
Guest -
August 17, 2021
Verified Purchase
easy repair
worked as expected,only drawback was fedex
Guest -
April 30, 2021
Verified Purchase
Gear parts for self propelled lawn mower.
Parts were in perfect condition. Once I got my mower apart, the parts fit excellent and now works great. Thanks for the speedy delivery. Everything is fine.
Guest -
July 14, 2020
Verified Purchase
Easy ordering,
Ordering was easy, although delivery much slower than prior times we used your company! Parts arrived in great shape. They are waiting in reserve as we know we will need them soon. Thanks.
Guest -
June 2, 2020
Verified Purchase
Easy repair
Great to get the needed parts for our mower and do the repair on our own.
Guest -
June 2, 2020
Verified Purchase
No more pushing
the gears (I bought both) fit installed easily and now I don't have to push the mower, it pulls itself.
Guest -
September 2, 2019
Verified Purchase
Mash perfet easy to install
Fast deliber
Guest -
August 20, 2019
Verified Purchase
Questions & Answers ?
Our customer Service team is at the ready daily to answer your part and product questions.
Ask our Team
We have a dedicated staff with decades of collective experience in helping customers just like you purchase parts to repair their products.
Does this fit my product?Questions & Answers for Pinion
No questions have been asked yet
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.
Drive wheels gears stripped out
alvin - June 17, 2016
👍 3 of 3 people found this instruction helpful
Tool Type
Lawn Mower
Difficulty
Medium
Time
15-30 minutes
Tools Used
Screwdriver, Socket set
Parts Used
1. Removed front drive wheels
2. Removed old drive pinions from both sides of mower
3. Installed new pinions
4. Installed new drive wheels
5 Mower back running like a rabbit
2. Removed old drive pinions from both sides of mower
3. Installed new pinions
4. Installed new drive wheels
5 Mower back running like a rabbit
Did you find this story helpful?
Thanks for voting and helping fellow customers!
Needed a new blade, drive cable, front wheel drive gears, drive belt needed replaced as well. Replaced the two front wheels. Tuned it up. Runs like new.
Edward - January 25, 2018
👍 1 of 1 people found this instruction helpful
Tool Type
Lawn Mower
Difficulty
Medium
Time
1-2 hours
Tools Used
Screwdriver, Socket set, Wrench Set
Went on line ,and downloaded the owners manual. Went through the parts list to see what I needed to order. Went to ereplacementParts.com, and submitted my order. They gave me a tracking number. I was kept up to date with the status of my order. It showed up on my doorstep the day they said it would. Read the owners manual to see how to change all the papers. They made it easy with the step by step instructions. I highly recommend eReplacementParts.com for all your easy, and hard to get parts
Did you find this story helpful?
Thanks for voting and helping fellow customers!
The self propel mechanism wouldn't work due to being worn.
Johnny - March 30, 2017
👍 1 of 1 people found this instruction helpful
Tool Type
Lawn Mower
Difficulty
Easy
Time
15-30 minutes
Tools Used
Screwdriver, Socket set, Wrench Set, 10W40
I replaced the pinion gears first, and then I replaced the pulling front wheels and then tried the lawn mower out and it worked like it did when it was first purchased.
Did you find this story helpful?
Thanks for voting and helping fellow customers!
Drive gear was missing on a dumpster dive lawnmower.
Kevin - April 19, 2023
Tool Type
Lawn Mower
Difficulty
Easy
Time
15-30 minutes
Tools Used
Socket set
Ordered missing parts and have a working mower.
Did you find this story helpful?
Thanks for voting and helping fellow customers!
Inherited lawn mower was missing a washer as well as a pinion to self drive on one side
Stacey - June 13, 2021
Tool Type
Lawn Mower
Difficulty
Easy
Time
Less than 15 minutes
Tools Used
Pliers, Socket set
1) used socket to remove flange nut
2) removed wheel
3) inserted pinion onto drive shaft
3) secured with e ring (used pliers to apply pressure
4) Added washer to wheel peg
5) put wheel back on
6) secured with flange nut
2) removed wheel
3) inserted pinion onto drive shaft
3) secured with e ring (used pliers to apply pressure
4) Added washer to wheel peg
5) put wheel back on
6) secured with flange nut
Did you find this story helpful?
Thanks for voting and helping fellow customers!
I had to remove a slight amount of inner surface of one of the pinion bearings because the combined length was a bit different
ANTHONY - May 20, 2021
Tool Type
Lawn Mower
Difficulty
Medium
Time
30-60 minutes
Tools Used
Screwdriver, Pliers, Power Drill, Socket set, Wrench Set, Nutdriver, I had to use a bench grinder
Remove both wheels and adjustment brackets the
e-rings then remove both bearings keep the left side parts on left and right side on right side just incase something goes wrong and you have to put the old parts back . Then replace new parts in reverse order.
e-rings then remove both bearings keep the left side parts on left and right side on right side just incase something goes wrong and you have to put the old parts back . Then replace new parts in reverse order.
Did you find this story helpful?
Thanks for voting and helping fellow customers!
Pinion and wheel worn.
JAMES - October 25, 2019
Tool Type
Lawn Mower
Difficulty
Easy
Time
15-30 minutes
Tools Used
Screwdriver, Pliers, Adjustable Wrench
Parts Used
Removed worn front wheels.
Removed worn pinions.
Installed new pinions.
Installed new front wheels.
Removed worn pinions.
Installed new pinions.
Installed new front wheels.
Did you find this story helpful?
Thanks for voting and helping fellow customers!
Kitty - August 8, 2019
Tool Type
Lawn Mower
Difficulty
Medium
Time
30-60 minutes
Tools Used
Socket set, Snap ring pliers
Did you find this story helpful?
Thanks for voting and helping fellow customers!
failing self propel action, old belt
Annette - August 19, 2018
Tool Type
Lawn Mower
Difficulty
Medium
Time
1-2 hours
Tools Used
Screwdriver, Pliers, Socket set, Wrench Set, hammer
1. Removed old wheels, gears, bearings, cutting blade, and belt.
2. Needed repair shop to reassemble bearings as I could not get the spring rings off.
3. Replaced old parts with new. Used hammer and screwdriver to tap E-clips into place as my spring ring tool broke.
4. Replaced belt according to instructions provided.
5. Replaced sharpened blade.
*** As always, be sure to disconnect spark plug before any repairs.***
2. Needed repair shop to reassemble bearings as I could not get the spring rings off.
3. Replaced old parts with new. Used hammer and screwdriver to tap E-clips into place as my spring ring tool broke.
4. Replaced belt according to instructions provided.
5. Replaced sharpened blade.
*** As always, be sure to disconnect spark plug before any repairs.***
Did you find this story helpful?
Thanks for voting and helping fellow customers!
Mower no longer was self propelled
James - October 15, 2017
Tool Type
Lawn Mower
Difficulty
Easy
Time
15-30 minutes
Tools Used
Screwdriver, Pliers, Socket set
Parts Used
Removed old wheels (both) with socket set.
Pulled retaining clip from pinion gear (both sides)
Tapped off the worn pinion gears.
Re-set the new pinion gears.
Replaced pinion retainer clips
Replaced old, with new drive wheels.
Tightened wheel retaining bolts.
Pulled retaining clip from pinion gear (both sides)
Tapped off the worn pinion gears.
Re-set the new pinion gears.
Replaced pinion retainer clips
Replaced old, with new drive wheels.
Tightened wheel retaining bolts.
Did you find this story helpful?
Thanks for voting and helping fellow customers!
Load More Install Stories
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.
Learn MoreOur 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.
