Husqvarna LR121 Belt Size Guide

The Husqvarna LR121 lawn tractor/ride-on mower uses two published belt sizes: 1/2" Wide x 76" I.D. for the cutter deck belt and 1/2" Wide x 85" I.D. for the transmission drive belt / cutter deck belt. Match each belt to its correct position and OEM reference before ordering.

Belt replacement guide

Husqvarna LR121 belt size & replacement chart

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

Equipment: Lawn Tractor / Ride-On MowerBelt applications: 2OEM references: 3Sizes listed: 2

Distinct belts2

OEM references3

Belt functions2

Published sizes2

Replacement lookup

Husqvarna LR121 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	532 13 12-64	1/2" Wide x 76" I.D.	BEL6878
Transmission / motion Transmission Drive Belt / Cutter Deck Belt	532 12 65-20, 532 41 92-71	1/2" Wide x 85" I.D.	BEL6887

Application details

Which Husqvarna LR121 belt do you need?

Cutter Deck Belt

Recorded OEM reference: 532 13 12-64. Published size: 1/2" Wide x 76" I.D.

Transmission Drive Belt / Cutter Deck Belt

Recorded OEM references: 532 12 65-20, 532 41 92-71. Published size: 1/2" Wide x 85" I.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

Husqvarna LR121 belt FAQ

What belt does the Husqvarna LR121 use?

The listed belt applications are Cutter Deck Belt and Transmission Drive Belt / Cutter Deck Belt. Recorded OEM references: 532 13 12-64, 532 12 65-20, and 532 41 92-71.

What are the Husqvarna LR121 belt part numbers?

The recorded OEM references are 532 13 12-64, 532 12 65-20, and 532 41 92-71. Match each number to the correct belt position before ordering.

What belt sizes does the Husqvarna LR121 use?

Cutter Deck Belt: 1/2" Wide x 76" I.D. and Transmission Drive Belt / Cutter Deck Belt: 1/2" Wide x 85" I.D.

Why are multiple belts listed for the Husqvarna LR121?

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 Husqvarna LR121 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.