Murray X99A belt size & replacement chart
OEM references, belt positions and published dimensions for this lawn tractor.
Murray X99A belt chart
Match the belt function first, then confirm the OEM number and size.
| Belt application | OEM / replacement number | Published size | Listing SKU |
|---|---|---|---|
| Mower deck Engine to Deck Belt / Primary Cutter Deck Belt |
37X70, 037X70, 037X70MA | 1/2" Wide x 77 11/16" O.D. | BEL37X70 |
| Transmission / motion Transmission / Motion Drive Belt |
37X61, 037X61, 710531 | 1/2" Wide x 95 3/32" O.D. | BEL37X61 |
| Transmission / motion Transmission / Motion Drive Belt |
37X80, 037X80, 037X80MA | 1/2" Wide x 86" O.D. | BEL37X80 |
| Mower deck Cutter Deck Belt |
37X57, 037X57, 037X57MA | 1/2" Wide x 53 11/16" O.D. | BEL37X57 |
| Transmission / motion Transmission / Motion Drive Belt |
37X65, 037X65, 037X65MA | 1/2" Wide x 30 3/16" O.D. | BEL37X65 |
| Mower deck Cutter Deck Belt |
37X63, 037X63, 037X63MA | 1/2" X 83" O.D. | BEL37X63 |
| Mower deck Cutter Deck Belt |
37X111, 37X111MA | 7/16" Wide x 45" O.D. | BEL37X111 |
Which Murray X99A belt do you need?
Engine to Deck Belt / Primary Cutter Deck Belt
Recorded OEM references: 37X70, 037X70, 037X70MA. Published size: 1/2" Wide x 77 11/16" O.D.
Transmission / Motion Drive Belt
Recorded OEM references: 37X61, 037X61, 710531. Published size: 1/2" Wide x 95 3/32" O.D.
Transmission / Motion Drive Belt
Recorded OEM references: 37X80, 037X80, 037X80MA. Published size: 1/2" Wide x 86" O.D.
Cutter Deck Belt
Recorded OEM references: 37X57, 037X57, 037X57MA. Published size: 1/2" Wide x 53 11/16" O.D.
Transmission / Motion Drive Belt
Recorded OEM references: 37X65, 037X65, 037X65MA. Published size: 1/2" Wide x 30 3/16" O.D.
Cutter Deck Belt
Recorded OEM references: 37X63, 037X63, 037X63MA. Published size: 1/2" X 83" O.D.
Cutter Deck Belt
Recorded OEM references: 37X111, 37X111MA. Published size: 7/16" Wide x 45" O.D.
Murray X99A belt FAQ
What belt does the Murray X99A use?
The listed belt applications are Engine to Deck Belt / Primary Cutter Deck Belt, Transmission / Motion Drive Belt, Transmission / Motion Drive Belt, Cutter Deck Belt, Transmission / Motion Drive Belt, Cutter Deck Belt, and Cutter Deck Belt. Recorded OEM references: 37X70, 037X70, 037X70MA, 37X61, 037X61, 710531, 37X80, 037X80, 037X80MA, 37X57, 037X57, 037X57MA, 37X65, 037X65, 037X65MA, 37X63, 037X63, 037X63MA, 37X111, and 37X111MA.
What are the Murray X99A belt part numbers?
The recorded OEM references are 37X70, 037X70, 037X70MA, 37X61, 037X61, 710531, 37X80, 037X80, 037X80MA, 37X57, 037X57, 037X57MA, 37X65, 037X65, 037X65MA, 37X63, 037X63, 037X63MA, 37X111, and 37X111MA. Match each number to the correct belt position before ordering.
What belt sizes does the Murray X99A use?
Engine to Deck Belt / Primary Cutter Deck Belt: 1/2" Wide x 77 11/16" O.D., Transmission / Motion Drive Belt: 1/2" Wide x 95 3/32" O.D., Transmission / Motion Drive Belt: 1/2" Wide x 86" O.D., Cutter Deck Belt: 1/2" Wide x 53 11/16" O.D., Transmission / Motion Drive Belt: 1/2" Wide x 30 3/16" O.D., Cutter Deck Belt: 1/2" X 83" O.D., and Cutter Deck Belt: 7/16" Wide x 45" O.D.
Why are multiple belts listed for the Murray X99A?
This machine has 7 recorded belt applications. Different belts can operate the mower deck, transmission, PTO, clutch or other drive components.
Can I match the Murray X99A belt by length alone?
No. Width, profile, inside or outside circumference, belt position and OEM reference can all affect fitment. Match the belt function and OEM number first, then use the dimensions as a final check.
