5/8" x 148 1/2" Lawn Mower Deck Belt for Scag 483326, Husqvarna 522811301 and Most FD 52M, MZ 52, MZT 52 and MZT 52 BF Series Zero-Turns

What It Is

This is a 5/8-inch wide, 148 1/2-inch long replacement deck belt designed for zero-turn mowers, specifically Scag and Husqvarna models with 52-inch cutting decks. It drives the mower blades from the engine to the spindles.

Fitment & Compatibility

Before buying, verify your mower’s deck belt length and width exactly: 5/8" wide x 148 1/2" long. This belt fits Scag models using OEM part #483326 and Husqvarna models using OEM part #522811301. It also fits most Husqvarna FD 52M, MZ 52, MZT 52, and MZT 52 BF series zero-turns with 52-inch decks. Check your owner’s manual or the old belt’s part number—cross-reference with the OEM numbers above. Measure the old belt if possible; a 1/4-inch length difference can cause slipping or poor engagement. This is an aftermarket replacement, not OEM Husqvarna or Scag branded.

Key Things to Do

• Quality: This is a standard aftermarket belt—expect good value but potentially shorter lifespan than OEM Kevlar-reinforced belts under heavy use.
• Installation difficulty: Moderate. You’ll need to release deck tension (usually a spring-loaded idler pulley) and route the belt around three spindles and the idler. Take a photo before removal.
• Common gotcha: Double-check deck deck size (52") and belt length. Some Husqvarna MZ 52 models use a 149-inch belt; measure your old one to confirm 148.5" is correct.
• Fitment note: Not for 48-inch or 54-inch decks—only 52-inch decks with the listed OEM numbers.

Should You Buy It

Buy this if you need a budget-friendly, direct-fit replacement for a worn deck belt on a 52-inch Scag or Husqvarna zero-turn and you’re comfortable with moderate DIY installation. Skip it if you want OEM durability or have a commercial mower running daily—invest in a premium Kevlar belt instead.