Murray 40318X50A Belt Size Guide

The Murray 40318X50A ride-on mower uses two published belt sizes: 5/8" Wide x 43" I.D. for the cutter deck belt and AA X 73" O.D. for the cutter deck belt one of two deck belts, use with our belaa73 (OEM 690071). Match each belt to its correct position and OEM reference before ordering.
Belt replacement guide

Murray 40318X50A belt size & replacement chart

OEM references, belt positions and published dimensions for this ride-on mower.

Equipment: Ride-On MowerBelt applications: 2OEM references: 6Sizes listed: 2
Distinct belts2
OEM references6
Belt functions1
Published sizes2
Replacement lookup

Murray 40318X50A 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
710231, 710231MA 5/8" Wide x 43" I.D. BEL6946
Mower deck
Cutter Deck Belt One of two deck belts, use with our BELAA73 (OEM 690071)
690071, 690071MA, 1001223, 1001223MA AA X 73" O.D. BELAA73
Application details

Which Murray 40318X50A belt do you need?

Cutter Deck Belt

Recorded OEM references: 710231, 710231MA. Published size: 5/8" Wide x 43" I.D.

Cutter Deck Belt One of two deck belts, use with our BELAA73 (OEM 690071)

Recorded OEM references: 690071, 690071MA, 1001223, 1001223MA. Published size: AA X 73" O.D.

Important: Confirm the belt position, deck size, serial range and machine configuration before ordering. Belts with the same length can use different widths or profiles.
Common questions

Murray 40318X50A belt FAQ

What belt does the Murray 40318X50A use?

The listed belt applications are Cutter Deck Belt and Cutter Deck Belt One of two deck belts, use with our BELAA73 (OEM 690071). Recorded OEM references: 710231, 710231MA, 690071, 690071MA, 1001223, and 1001223MA.

What are the Murray 40318X50A belt part numbers?

The recorded OEM references are 710231, 710231MA, 690071, 690071MA, 1001223, and 1001223MA. Match each number to the correct belt position before ordering.

What belt sizes does the Murray 40318X50A use?

Cutter Deck Belt: 5/8" Wide x 43" I.D. and Cutter Deck Belt One of two deck belts, use with our BELAA73 (OEM 690071): AA X 73" O.D.

Why are multiple belts listed for the Murray 40318X50A?

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 40318X50A 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.