Husqvarna Drive Belt Size Chart(Updated For All Models)

Your Husqvarna mower relies on a drive belt to transfer engine power to the wheels or blades. Using the wrong belt size can lead to poor performance, unexpected breakdowns, or damage to the transmission. Knowing your exact model and its corresponding belt size helps you avoid trial and error, saving both time and money.

Husqvarna Drive Belt Size Chart

Model Number	Mower Type	Belt Type	Part Number	Belt Size (Length x Width)
GTH52XLS	Lawn Tractor	Drive Belt	532174368	95.5″ x 0.5″
LGT2654	Lawn Tractor	Ground Drive Belt	532401274	91.5″ x 0.5″
LTH18538	Lawn Tractor	Transmission Belt	532408714	83.0″ x 0.5″
MZ54	Zero-Turn Mower	Drive Belt	592951501	156″ x 0.5″
MZ61	Zero-Turn Mower	Ground Drive Belt	539114557	162.5″ x 0.5″
RZ4623	Zero-Turn Mower	Drive Belt	583909501	141.5″ x 0.5″
TS354XD	Lawn Tractor	Ground Drive Belt	592951201	100.5″ x 0.625″
YTA24V48	Lawn Tractor	Ground Drive Belt	532405143	92.5″ x 0.5″
YTH20K46	Lawn Tractor	Drive Belt	532429636	92.5″ x 0.5″
YTH21K46	Lawn Tractor	Drive Belt	532429636	92.5″ x 0.5″
YTH22V46	Lawn Tractor	Drive Belt	532405143	92.5″ x 0.5″
YTH24V48	Lawn Tractor	Drive Belt	532405143	92.5″ x 0.5″
Z242F	Zero-Turn Mower	Drive Belt	581982101	142″ x 0.5″
Z246	Zero-Turn Mower	Deck Belt	581982101	150″ x 0.5″
Z248F	Zero-Turn Mower	Deck Belt	581982101	150″ x 0.5″
Z254	Zero-Turn Mower	Drive Belt	580364609	153.4″ x 0.5″
Z254F	Zero-Turn Mower	Deck Drive Belt	539131603	153.4″ x 0.5″
Z460	Commercial Z-Turn	Deck Belt	581693101	155″ x 0.5″
Z554X	Commercial Z-Turn	Drive Belt	592951801	162.5″ x 0.5″

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How to Identify the Right Drive Belt for Your Husqvarna Model

Here are a few ways to identify the correct belt:

• Check the model number: Usually found on the mower frame.
• Refer to the owner’s manual: It often lists exact belt dimensions.
• Measure the old belt: If intact, lay it flat to measure length and width.
• Look for part numbers: Some belts have the number printed directly on them.

How to Replace a Husqvarna Drive Belt

1. Turn off the mower and remove the key.
2. Lift the mower deck and remove the belt guards.
3. Release tension using the idler arm.
4. Remove the old belt carefully from the pulleys.
5. Install the new belt by reversing the process.
6. Check alignment and rotate the blades manually to ensure it fits snugly.

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Signs Your Drive Belt Needs Replacement

• Mower won’t move
• The belt is frayed or cracked
• Burning rubber smell
• Sudden power loss
• Squealing noise during operation

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FAQ

How do I know my drive belt size?

To find your drive belt size, follow these steps:

• Check the owner’s manual: It often lists the exact belt type, part number, and dimensions.
• Look for a sticker or decal: Many Husqvarna mowers have a diagram under the hood or on the deck showing belt routing and size.
• Check the current belt: Some belts have the size or part number printed or engraved on the surface.
• Use a tape measure: If the belt is broken or removed, lay it flat and measure the total length. Measure the width as well, most belts are between 1/2″ and 5/8″.
• Search online with your model number: Visit the official Husqvarna Parts Lookup Tool and enter your mower model.

What is the length of the drive belt on a Husqvarna YTH22V42?

For the Husqvarna YTH22V42, the drive belt (ground drive belt) has the following specs:

• Length: Approximately 92.5 inches
• Width: 0.5 inches (1/2 inch)
• Part Number: 532429636 or 532405143 (depending on year/model variant)

Tip: Always double-check with your specific model and year, as minor variations may exist.

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What is the drive belt part number for Husqvarna LGT2654?

The Husqvarna LGT2654 lawn tractor uses:

• Drive Belt Part Number: 532401274
• Belt Size: 91.5″ x 0.5″

This belt connects the engine pulley to the transmission, driving the mower forward and in reverse.

What are the sizes of belt drives?

Belt drives vary by:

• Length: Usually between 80–160 inches depending on mower size and design.
• Width: Most common sizes are:
  • 1/2 inch (A-section)
  • 5/8 inch (B-section)
• Type:
  • V-belts: Most common in mowers, with angled sides.
  • Flat belts: Used in older or specific models.
  • Cogged belts: For higher traction and flexibility.

Always match the exact size and type for best performance.

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How do you determine belt length?

You can determine the belt length in three ways:

1. With the Old Belt:
   • Lay it flat and use a measuring tape to get the full outer circumference.
   • If it’s stretched or worn, consider reducing 0.5–1 inch from the measurement.
2. Without the Belt:
   • Wrap a flexible rope or string along the belt path.
   • Measure the rope length to estimate your needed belt size.
3. By Pulley Distance:
   • Use a belt length calculator using pulley diameters and center distance.
   • Some online calculators let you input values and give a precise measurement.

How long is a 42″ mower belt?

If you’re referring to a 42-inch Husqvarna mower deck, the deck belt length is typically:

• Deck Belt Length: Around 96.5 inches
• Width: Usually 1/2 inch

Example:

• For models like YTH22V42 or YTH18542, the deck belt part number is often 532144959 with dimensions 96.5″ x 0.5″.

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