This is a genuine manufacturer approved replacement ground drive idler pulley designed for lawn tractors. The purpose of this pulley is to apply tension to the belt. It is made out of plastic with metal and it is sold individually.
Pulley 690409MA
OEM part for: Briggs & Stratton, Murray
Part Number: 690409MA



Jump To:
Product Description ?
- 3.5" outer 3/4" inner 1" thick
- Classification: Part
- Weight: 0.20 lbs.
- Shipping: Ships Worldwide
Frequently Purchased Together ?
Compatibility
This Pulley will fit the following 859 machines. Confirm this part works with your model, and view the detailed model diagrams and repair help we have to offer.
Displaying 20 of 859 matching models.
Murray
Show More Compatible Models859 total model matches. Try the above search to narrow your results.
This is the official OEM part for the following brands:
- Murray
- Snapper
This item works with the following types of products:
- Lawn Mower
- Lawn Tractor
This part replaces obsolete part #: 725177, MU690409MA
Customer Part Reviews ?
- 1
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 Pulley
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.
Idler pulley was worn and belt was cracked
Tool Type
Lawn Tractor
Difficulty
Medium
Time
30-60 minutes
Tools Used
Screwdriver, Socket set
Parts Used
Removed deck and steering wheel
Removed old drive belt
Snaked new drive belt in and tightened new idler pulley
Drive Belt Broke on Lawn Tractor
Tool Type
Lawn Tractor
Difficulty
Hard
Time
More than 2 hours
Tools Used
Pliers, Socket set, Wrench Set, Adjustable Wrench, Breaker Bar
Removed old belt making sure to notice it's path so I could install the new one.
I took pictures to help with my memory!
Reinstalled new drive belt and plastic pulley (which was broken) but had to loosen rear pulley guides on all pulleys.
Had to unbolt and lift up Steering wheel shaft in order to install new belt properly.
Had to unhook link clip near rear pulley to get new belt on properly.
Tightened everything back in place and no more problems.
Belt tensioner pulley broke
Tool Type
Lawn Tractor
Difficulty
Medium
Time
30-60 minutes
Tools Used
Socket set, Wrench Set, Hydraulic press
Parts Used
The Drive Belt Tension Pullies Up Under The Chasis Wore Out
Tool Type
Lawn Tractor
Difficulty
Easy
Time
30-60 minutes
Tools Used
Wrench Set
Parts Used
Thanks to eReplacementParts.com for having the right parts and for timely delivery -
Drive belt was worn out. Cracked in all places
Tool Type
Lawn Tractor
Difficulty
Easy
Time
1-2 hours
Tools Used
Socket set, Wrench Set
Parts Used
Drive belt became loose and wouldn't move
Tool Type
Lawn Tractor
Difficulty
Medium
Time
30-60 minutes
Tools Used
Screwdriver, Pliers, Wrench Set
Mower would bind and squeal, the belt no speed control,could not shift.
Tool Type
Lawn Tractor
Difficulty
Medium
Time
1-2 hours
Tools Used
Screwdriver, Socket set, Wrench Set, voly meeter,krimpers
Bearings bad and worn out plastic.
Tool Type
Lawn Tractor
Difficulty
Medium
Time
30-60 minutes
Tools Used
Screwdriver, Socket set, Wrench Set, Adjustable Wrench
Trans axle peerless 206 502C
Tool Type
Lawn Tractor
Difficulty
Easy
Time
More than 2 hours
Tools Used
Screwdriver, Pliers, Socket set, Wrench Set
Parts Used
previous idle pulley's barring went bad
Tool Type
Lawn Tractor
Difficulty
Easy
Time
Less than 15 minutes
Tools Used
Wrench Set
Parts Used
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.