Earthtec 50031528 Drive Deck Belt Replacement for Bush Hog RDTH84 Lawn Riding Mower，Compatible with Yazoo Kees 104336 539104336 510201301 5/8" x 183"

What It Is

This Earthtec 5/8" x 183" drive deck belt transfers engine power to the cutting blades on Bush Hog RDTH84 zero-turn mowers and compatible Yazoo Kees models (using OEM part numbers 104336, 539104336, or 510201301). It’s a replacement for worn or broken belts that cause blade slippage or uneven cutting.

Fitment & Compatibility

Before buying, verify your mower’s deck size and model. This belt fits:

• Bush Hog RDTH84 (84" deck) – primary application.
• Yazoo Kees models using OEM parts 104336, 539104336, or 510201301.
• Measurement check: Belt is 5/8" wide x 183" long (outside circumference). Measure your old belt’s width and length to confirm. Check your owner’s manual or existing belt part number; if it differs from the listed OEM numbers, this belt likely won’t fit. Also ensure your deck uses a single belt drive (not a dual-belt system).

Key Things to Know

• Quality: Earthtec is an aftermarket brand; this belt is aramid-reinforced for durability, but not OEM. It’s a budget-friendly alternative with solid reviews.
• Installation difficulty: Moderate. You’ll need to remove the deck guard, route the belt around pulleys, and tension it per your mower’s manual. A belt tension gauge helps avoid over-tightening.
• Common gotcha: The 183" length is critical. A belt even 1" off may not track properly or cause slippage. Double-check your old belt’s length.
• Wear check: Inspect pulleys for damage or rust before installing; a worn pulley can shred a new belt quickly.

Should You Buy It

If you own a Bush Hog RDTH84 or compatible Yazoo Kees mower and need an affordable, reliable replacement for a worn deck belt, this Earthtec belt is a solid choice. It’s well-reviewed for its price, but confirm your OEM part number matches and measure your old belt to avoid fitment issues.