Murray X78B belt size & replacement chart
OEM references, belt positions and published dimensions for this lawn tractor.
Murray X78B 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 Cutter Deck Belt |
37X74, 037X74, 037X74MA | 1/2" Wide x 55" I.D." | BEL6857 |
| Transmission / motion Transmission / Motion Drive Belt |
37X87, 037X87, 710341 | 1/2" Wide x 97" O.D. | BEL37X87 |
Which Murray X78B belt do you need?
Cutter Deck Belt
Recorded OEM references: 37X74, 037X74, 037X74MA. Published size: 1/2" Wide x 55" I.D."
Transmission / Motion Drive Belt
Recorded OEM references: 37X87, 037X87, 710341. Published size: 1/2" Wide x 97" O.D.
Murray X78B belt FAQ
What belt does the Murray X78B use?
The listed belt applications are Cutter Deck Belt and Transmission / Motion Drive Belt. Recorded OEM references: 37X74, 037X74, 037X74MA, 37X87, 037X87, and 710341.
What are the Murray X78B belt part numbers?
The recorded OEM references are 37X74, 037X74, 037X74MA, 37X87, 037X87, and 710341. Match each number to the correct belt position before ordering.
What belt sizes does the Murray X78B use?
Cutter Deck Belt: 1/2" Wide x 55" I.D." and Transmission / Motion Drive Belt: 1/2" Wide x 97" O.D.
Why are multiple belts listed for the Murray X78B?
This machine has 2 recorded belt applications. Different belts can operate the mower deck, transmission, PTO, clutch or other drive components.
Can I match the Murray X78B 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.
