Medium
30-60 minutes
This is a genuine OEM sourced replacement part used on riding lawn mowers/tractors. This is the primary belt which drives/spins the blades. Please note the secondary shorter belt is sold separately. This part is made out of rubber material and it is sold individually.
Clean the pulleys off before installing the new belt to ensure top performance and longevity with your new belt. Inspect belts periodically and replace them when worn to maintain peak performance.
To replace this belt you would need a wrench set.
Belt Primary 46 37X89MA
OEM part for: Murray
Part Number: 37X89MA
$54.51
In Stock
Ships within 1 business day 
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Product Description ?
- 46 Inch
- Classification: Part
- Weight: 0.66 lbs.
- Shipping: Ships Worldwide
Frequently Purchased Together ?
Compatibility
This Belt Primary 46 will fit the following 116 machines. Confirm this part works with your model, and view the detailed model diagrams and repair help we have to offer.
Murray
Show More Compatible ModelsThis item works with the following types of products:
- Lawn Tractor Parts
This part replaces obsolete part #: 037X89MA, 037X89A
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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.
Found the main belt was severly damaged during my pre-season inspection.
Mike - March 22, 2017
👍 3 of 4 people found this instruction helpful
Tool Type
Lawn Tractor
Difficulty
Medium
Time
1-2 hours
Tools Used
Screwdriver, Pliers, Socket set, Two hands and a little common sense.
Parts Used
I removed the mower deck, remove the damaged belt. Looked up the part on eReplacementParts, ordered the part.
Once I received the part I looked up the appropriate diagram to ensure I properly installed the belt.
Also noticed the deck level needed adjustment and found the information for that on the same site.
Too me close to two hours cause I'm old and slow, and was not in any hurry. Took a coffee break.
Once I received the part I looked up the appropriate diagram to ensure I properly installed the belt.
Also noticed the deck level needed adjustment and found the information for that on the same site.
Too me close to two hours cause I'm old and slow, and was not in any hurry. Took a coffee break.
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Blades shot and belt worn out
Steve - July 3, 2017
Tool Type
Lawn Tractor
Difficulty
Easy
Time
15-30 minutes
Tools Used
Socket set
Removed the deck from the mower
Took note on where the belt was positioned
Installed the new belt in the same way
Removed the blade nuts and washers then the blades
Installed the new blades on the spindles
Replaced the washers and tightened the blade nuts
Then attached the deck to the mower
Took note on where the belt was positioned
Installed the new belt in the same way
Removed the blade nuts and washers then the blades
Installed the new blades on the spindles
Replaced the washers and tightened the blade nuts
Then attached the deck to the mower
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Our belts were cracked and breaking
Earl - March 22, 2017
Tool Type
Lawn Tractor
Difficulty
Medium
Time
1-2 hours
Tools Used
Screwdriver, Socket set, Wrench Set
Remove the deck
Take a picture of the belt routing and install the belts
Then install the primary belt above the chassis
Replace the deck
Take a picture of the belt routing and install the belts
Then install the primary belt above the chassis
Replace the deck
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Old tractor, pulleys just worn out and belts needed replacing
Bryan - November 3, 2020
👍 0 of 1 people found this instruction helpful
Tool Type
Lawn Tractor
Difficulty
Medium
Time
30-60 minutes
Tools Used
Screwdriver, Pliers, Socket set, Wrench Set
Dropped mower deck, replaced pulleys and belts and reassembled
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The primary belt was cracking, needed new blades
Tommy - June 8, 2016
👍 0 of 1 people found this instruction helpful
Tool Type
Lawn Tractor
Difficulty
Easy
Time
30-60 minutes
Tools Used
Screwdriver, Socket set, Pneumatic impact wrench
The package that the belt is sold in has the routing of the belt right on the package. I jacked up the front of the mower, then put jack stands underneath it and blocked the rear wheels. I remove the blade nuts, then the washers and the blades. I the placed the blade adapters on the spindle, followed by the blades, the washers and tightened the blade nuts.
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The pulley started coming apart thus damaging the belt also.
Richard - December 1, 2015
👍 2 of 5 people found this instruction helpful
Tool Type
Lawn Tractor
Difficulty
Easy
Time
30-60 minutes
Tools Used
Pliers, Socket set
Take the 3 screws ( 1/2" socket ) out of the belt guard. Next remove the pulley locknut ( 7/8" socket & pliers like channel locks needed ). Next remove the belt. Inspect any other parts on the deck that might need replacement. Last put back together in the reverse order.
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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.
