Faugcol Replacement Deck Belt for Exmark Radius S/X 52-inch Deck — Direct-Fit, Reinforced

Faugcol 126-7443-SL is a direct replacement deck belt engineered to restore reliable power transfer on Exmark Radius S and X Series zero-turn mowers with 52" decks.

When a worn or broken deck belt sidelines your mower, choosing an exact-fit replacement avoids downtime and maintains cutting performance. This Faugcol belt replaces Exmark/Toro factory part 126-7443-SL (previously 126-7443) and is compatible with multiple Radius S and X Series 52-inch decks. It’s designed for proper routing, consistent tension, and long service life when installed according to manufacturer guidelines.

Which Exmark models will this belt fit?

This belt is formulated to match the factory specifications for several 52" Radius decks. Confirm your model number before ordering to ensure correct fit and routing. It fits both S-Series and X-Series 52-inch decks listed by model codes.

• Compatible with Exmark Radius S-Series: RAS691GKA523A3, RAS708GEM523C3, RAS720GKC52300, RAS720CKC52300
• Compatible with Exmark Radius X-Series: RAX691GKA524A3
• Direct replacement for part number 126-7443-SL and previous 126-7443
• Intended for 52-inch deck belt routing and spindle drive systems

How does this replacement belt improve mower reliability?

Using a correctly sized replacement belt prevents slippage, uneven cutting, and premature wear on pulleys and spindles. The Faugcol belt matches factory profile and tensile strength to maintain consistent deck speed and blade engagement. Proper installation reduces strain on the drivetrain and extends component life.

• Engineered to original factory dimensions and thickness
• Tension-compatible to minimize slippage under load
• Reduces risk of pulley and spindle damage from improper belts
• Smoother power transfer for consistent blade RPMs

What should I check before installing this belt?

Inspect pulleys, spindles, and idlers for wear or damage before fitting a new belt. Clean debris from the deck and confirm the routing diagram matches your deck layout. Replace any worn bearings or misaligned pulleys to avoid rapid belt wear.

• Verify model and deck size (52") against listed compatible codes
• Inspect pulleys, idlers, and spindle bearings for wear
• Ensure correct belt routing per your mower manual
• Check tensioner function and adjust per manufacturer specs

How long should this belt last, and how can I extend its service life?

Service life depends on usage, conditions, and maintenance practices. Proper installation, routine inspections, and keeping the deck clean will maximize belt life. Replace the belt at the first sign of cracking, glazing, or fraying to prevent sudden failures.

• Typical life spans vary with workload and terrain
• Regularly remove grass, debris, and buildup from pulleys
• Address worn components promptly to avoid belt damage
• Store equipment shielded from heat and ozone when idle

Who is this for? Lawn care professionals, municipal crews, and homeowners who operate Exmark Radius S or X Series zero-turn mowers with 52" decks and need an exact-fit deck belt. If you require dependable deck drive performance and a straightforward replacement for Exmark part 126-7443-SL (or the older 126-7443), this Faugcol belt offers a practical solution. Always double-check your mower model and follow the manufacturer’s installation and safety instructions when replacing belts.