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

What It Is

This is a replacement deck belt (OEM part #582558001) for 48-inch cutting decks on Husqvarna Z248F, RedMax RZT48, and Jonsered Z48F zero-turn mowers. It drives the blades from the engine pulley.

Fitment & Compatibility

Check your deck size first – this belt is for 48-inch decks only. Verify your mower model exactly: Husqvarna Z248F (not Z248F-968999223), RedMax RZT48, or Jonsered Z48F. Measure your old belt – it should be 3/8" wide x 96.5" (or 97") long. The OEM number is 582558001; aftermarket equivalents exist but may vary in thickness or tension. Avoid using on 42" or 54" decks – they use different belt lengths.

Key Things to Know

• OEM vs aftermarket: OEM (this part) is pre-stretched and matches factory tension precisely. Cheaper aftermarket belts often slip or wear faster.
• Installation difficulty: Moderate – you’ll need to remove the deck belt guard and release tension from the idler pulley. A belt routing diagram is printed on your deck.
• Common gotcha: If the belt is too tight or too loose, the blades won’t engage properly. Check pulley alignment and replace any worn idler pulleys at the same time.
• Durability: This is a Kevlar-reinforced belt – lasts 1-2 seasons with normal residential use. Commercial use may need annual replacement.

Should You Buy It

Yes, if you own one of the listed 48-inch zero-turn mowers and need a direct OEM replacement for reliable engagement and consistent cut. It’s a fair price for a belt that fits without guesswork. If you’re on a tight budget and don’t mind checking length/width, an aftermarket option could save a few dollars – but expect shorter life.