582558001 Lawn Mower Deck Belt Replacement for Husqvarna Z248F 48 Inch Zero-Turn Mower, Fits for RedMax RZT48 Jonsered Z48F

What It Is

This is an aftermarket replacement deck belt (part 582558001) designed to drive the cutting blades on Husqvarna Z248F 48-inch zero-turn mowers, plus compatible RedMax RZT48 and Jonsered Z48F models. It’s a serpentine-style belt that transfers engine power to the spindle pulleys under the deck.

Fitment & Compatibility

Check these before buying:

• Deck size: 48-inch cutting deck only. Will not fit 42-inch or 54-inch decks.
• Exact models: Husqvarna Z248F, RedMax RZT48, Jonsered Z48F. Verify your mower’s model number on the frame tag (usually under the seat or near the engine).
• OEM vs aftermarket: This is an aftermarket belt, not genuine Husqvarna. It’s a direct replacement in length and width (usually 1/2” x 96-1/2” or similar), but tolerances may vary slightly.
• Measure your old belt: Use a tape measure to confirm the belt’s length (lay it flat, measure the inside circumference). The 582558001 is typically 96.5 inches long.
• Check pulley condition: Worn or damaged pulleys will eat belts fast. Inspect for burrs, wobble, or rust before installing.

Key Things to Know

• Quality: Most users report this belt lasts a full season under normal residential use. Heavy commercial use may wear it faster than OEM.
• Installation difficulty: Moderate. You’ll need to remove the deck (or at least the belt guard) and route the belt around the spindle pulleys and tensioner. A spring-loaded tensioner can make it tricky—use a pry bar or belt tool.
• Common gotcha: The belt must be routed exactly as the diagram shows (usually over the left spindle, under the right, and around the tensioner pulley). One wrong wrap and the belt will slip or throw.
• No warranty: Aftermarket belts rarely come with a warranty. If it fails early, you’re out the cost.

Should You Buy It

This belt is a solid budget-friendly option for homeowners with a Husqvarna Z248F, RedMax RZT48, or Jonsered Z48F who need a quick replacement for light-to-moderate mowing. If you mow commercially or want maximum longevity, spend more on a genuine OEM belt.