Close
Phone 1-855-343-0069
Cart
Official OEM Guarantee
Fast shipping from USA
365 Day Returns
Preferred Brand Partners
9303931-1-M-MTD-756-0643A-Trimmer Flat Idler Pulley
Part Location Diagram of 756-0643A MTD Trimmer Flat Idler Pulley
See part E74 in the diagram
9303931-1-S-MTD-756-0643A-Trimmer Flat Idler Pulley 360 view
( Grid squares measure 1x1 inch )
9303931-1-S-MTD-756-0643A-Trimmer Flat Idler Pulley 9303931-1-S-MTD-756-0643A-Trimmer Flat Idler Pulley 360 view
Part Location Diagram of 756-0643A MTD Trimmer Flat Idler Pulley

Trimmer Flat Idler Pulley 756-0643A

Manufactured by:
MTD
ERP Number:
ERP9303931
Part Number:
756-0643A
Original Equipment Manufacturer ?
$57.25
★★★★★
★★★★★
2 Reviews
In Stock
Delivers in 3-5 Business Days!

A Bit Difficult 

More than 2 hours 

(2 rated repairs) ?

Does this part fit my model?

Need help finding your model number?

Jump to:

Troubleshooting Reviews Questions & Answers Repair Instructions Model Cross Reference

Troubleshooting

This part works with the following brands:
  • MTD
  • Yard Machines
  • Yard Man
  • Husky
  • Ryobi
This part works with the following products:
  • Lawn Tractor
  • Lawn Mower
Part# 756-0643A replaces these:
756-0437, 756-0643, 956-0437,
★

Customer Part Reviews

?
5.0
Average Rating (out of 5):
★★★★★
★★★★★
(2 Reviews)
Click to filter by ratings:
  • 5 stars
    2
  • 4 stars
    0
  • 3 stars
    0
  • 2 stars
    0
  • 1 star
    0
  • 1
Sort by:  
Sorry, we couldn't find any existing reviews that matched. Try using some different or simpler keywords.
★★★★★
★★★★★
Idler pulley for transmission
This replacement part was better than the factory original: all metal painted steel and fit perfectly! Thanks!
Guest - September 16, 2019
Verified Purchase
★★★★★
★★★★★
It fit my mover perfectly and arrived on time.
It worked perfectly. Thanks =ƒæì.
Guest - June 24, 2022
Verified Purchase

Questions & Answers

?

Our customer Service team is at the ready daily to answer your part and product questions.

Be the first to ask our experts a question about this part!

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?

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.

A Bit Difficult 

More than 2 hours 

(2 rated repairs) ?
  • 1
Sort by:  
Sorry, we couldn't find any existing installation instruction that matched.

Transmission belt broke

Dale from Richmond, Minnesota

6 of 6 people found this instruction helpful.
Difficulty Level:
Difficult
Total Repair Time:
More than 2 hours
Tools:
Pliers, Screw drivers, Socket set, Wrench (Adjustable), Wrench set
Parts Used:
756-0643A, 954-0280A, 954-0370
Repaired worn tighter pulley and replaced both belts
Did you find this story helpful?
Thank you for voting!

Transmission belt repeatably comes off of pully

David from Wooster, Ohio

1 person found this instruction helpful.
Difficulty Level:
A Bit Difficult
Total Repair Time:
More than 2 hours
Tools:
Screw drivers, Socket set, Wrench set
Parts Used:
756-0643A, 748-0234
1. Noticed cracking and poor condition of the transmission belt.
2. Purchased a similar non-OEM belt & installed it.
3. New belt more than once comes off the pully
4. Review the condition of the tensioner pully & components finding worn pully bearing & mounting plate.
5. Purchased pully assembly, mounting plate & b ushing.
6. Installed new parts & belt continues to come off.
7. Reviewed non- OEM-belt dimensions against worn belt finding that the new belt was 1/16GÇ¥ narrower at the wide section.
8. Removed the new belt and re-installed the original cracked & worn belt. That worn belt is still working through a complete lawn mowing experience. (Knock on wood). Lesson learned - bushings & bracket wear on the tensioner assembly was enough to throw the belt off. When it finally breaks I will bite the bullet and spend the money on an OEM belt that has the correct width.
Read less
Did you find this story helpful?
Thank you for voting!
  • 1

Model Cross Reference

This part works with the following models:
ERP Number: ERP9303931
Manufacturer Part Number: 756-0643A
Brand Model Number Description
MTD 1057A850-0308 Lawn Tractor - Lawn Tractor
MTD 1105UP538 Lawn Tractor - Lawn Tractor
MTD 111-508R002 Lawn Tractor - Lawn Tractor
MTD 111-508R013 Lawn Tractor - Lawn Tractor
MTD 111-508R016 Lawn Tractor - Lawn Tractor
MTD 111-508R019 Lawn Tractor - Lawn Tractor
MTD 111-508R022 Lawn Tractor - Lawn Tractor
MTD 111-508R026 Lawn Tractor - Lawn Tractor
MTD 111-508R029 Lawn Tractor - Lawn Tractor
MTD 111-508R033 Lawn Tractor - Lawn Tractor
MTD 111-508R054 Lawn Tractor - Lawn Tractor
MTD 111-508R057 Lawn Tractor - Lawn Tractor
MTD 111-508R077 Lawn Tractor - Lawn Tractor
MTD 111-508R098 Lawn Tractor - Lawn Tractor
MTD 111-508R105 Lawn Tractor - Lawn Tractor
MTD 111-508R118 Lawn Tractor - Lawn Tractor
MTD 111-508R121 Lawn Tractor - Lawn Tractor
MTD 111-508R129 Lawn Tractor - Lawn Tractor
MTD 111-508R131 Lawn Tractor - Lawn Tractor
MTD 111-508R134 Lawn Tractor - Lawn Tractor
MTD 111-508R138 Lawn Tractor - Lawn Tractor
MTD 111-508R145 Lawn Tractor - Lawn Tractor
MTD 111-508R151 Lawn Tractor - Lawn Tractor
MTD 111-508R196 Lawn Tractor - Lawn Tractor
MTD 111-508R205 Lawn Tractor - Lawn Tractor
MTD 111-508R206 Lawn Tractor - Lawn Tractor
MTD 111-508R229 Lawn Tractor - Lawn Tractor
MTD 111-508R301 Lawn Tractor - Lawn Tractor
MTD 111-508R304 Lawn Tractor - Lawn Tractor
MTD 111-508R307 Lawn Tractor - Lawn Tractor
Trimmer Flat Idler Pulley
$ 57.25
In Stock
✖
Stock Status
✖
Mail-In Recycling Rebate

Some of the parts we sell are eligible for mail-in rebates since we can recycle them. We will display any applicable rebates in your shopping cart. To redeem your rebate, contact Customer Service after you have received your part.

✖