Lawn Mower Deck Belt Replacement for Husqvarna 582558001 Z248F RedMax RZT48 Jonsered Z48F

What It Is

This is a replacement deck drive belt for Husqvarna Z248F, RedMax RZT48, and Jonsered Z48F zero-turn mowers. It powers the blades from the engine’s electric clutch to the spindle pulleys, so you need it when the original belt snaps, stretches, or wears out.

Fitment & Compatibility

• Exact OEM number: Husqvarna 582558001 (also listed as 532582558). Cross-check this with your mower’s manual or old belt.
• Models confirmed: Husqvarna Z248F (2013–2020), RedMax RZT48, Jonsered Z48F. Does not fit older Z242F or different deck sizes.
• Deck size: Only for 48-inch fabricated decks on these specific zero-turn models. Measure your deck width—if it’s 42” or 54”, this belt won’t work.
• Aftermarket vs OEM: This is a genuine Husqvarna belt, not a generic. Aftermarket belts may be cheaper but often fail faster due to slightly different length or material.
• Check before buying:
  • Measure old belt length (end-to-end flat) – should be ~96.5 inches.
  • Verify belt width (typically 1/2 inch) and K-section profile.
  • Confirm your mower has a single belt deck (not a two-belt system).

Key Things to Know

• Installation difficulty: Moderate. You’ll need to remove the deck or at least the belt guard and idler pulley to route the belt. A belt tensioner tool helps.
• Common gotcha: The belt routing diagram is often printed on the deck—snap a photo before removing the old belt. Wrong routing causes immediate slipping or blade disengagement.
• Quality: Genuine Husqvarna belts are Kevlar-reinforced and last 200–300 hours under normal use. Cheaper aftermarket belts may stretch within 50 hours.
• Wear signs: Cracking, glazing, or frayed edges mean replacement is overdue. Running a worn belt can damage pulleys.

Should You Buy It

If you own a Husqvarna Z248F, RedMax RZT48, or Jonsered Z48F with a 48-inch deck, this is the correct OEM replacement. It’s not the cheapest option, but the fit is guaranteed and the durability is better than most aftermarket belts. Avoid if your deck size differs or you’re on a tight budget—generic belts around $15–20 exist, but you’ll likely replace them sooner.