{"product_id":"udc-mower-belts-52-v-belt-5-8-x-163-for-exmark-52-inch-mowers-aramid-cords-long-life-wear-resistance","title":"UDC Mower Belts 52\" V-Belt 5\/8\" x 163\" for Exmark 52-inch Mowers — aramid cords, long-life wear resistance","description":"\u003cp\u003e\u003cstrong\u003eUDC Parts 126-7443 is a direct-fit replacement V-belt for 52-inch Exmark zero-turn mowers, sized 5\/8\" x 163\" and engineered for long life and high load capacity.\u003c\/strong\u003e\u003c\/p\u003e\n\n\u003cp\u003eThis replacement belt from UDC Mower Belts is built to match Exmark OEM fit and function while improving wear resistance and tensile strength. It fits a wide range of Exmark Radius and R Series zero-turn models and uses aramid tensile cords, a natural rubber body, and a two-layer wrap for reliable power transfer across the deck and transmission systems. The design focuses on reduced friction and low wear volume so you spend less time changing belts and more time mowing.\u003c\/p\u003e\n\n\u003ch3\u003eWhich Exmark models does this belt replace?\u003c\/h3\u003e\n\u003cp\u003eThe UDC Parts 126-7443 is produced to replace Exmark part numbers 126-7443, 126-7443-SL, and 126-7443-SU and fits many 52-inch radius and R-series mowers. It’s compatible with several factory model codes used across Exmark lineup.\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003eCompatible with RZE724GKC52300, RZE708GEM52300, RAE708GEM52300 and similar models\u003c\/li\u003e\n  \u003cli\u003eFits RZS691GKA523A3, RAS720GKC52300, RAS720CKC52300 and RAS708GEM523C3\u003c\/li\u003e\n  \u003cli\u003eAlso fits RAS691GKA523A3, RZX801GKA524A3, RAX691GKA524A3 and RDX691GKA524A3\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eHow does the belt construction affect performance and lifespan?\u003c\/h3\u003e\n\u003cp\u003eThis belt uses aramid tensile cords and a natural rubber body to balance strength, flexibility, and durability. Lab testing shows lower friction and minimal wear volume, which translates to fewer replacements and consistent power delivery under load.\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003eAramid cords provide high breaking strength and fatigue resistance\u003c\/li\u003e\n  \u003cli\u003eNatural rubber core improves flexibility across pulleys and idlers\u003c\/li\u003e\n  \u003cli\u003eTwo-layer wrapping cover helps resist abrasion and environmental wear\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eWhat are the exact size and fit specifications I need to check?\u003c\/h3\u003e\n\u003cp\u003eConfirm the belt width and length to ensure direct replacement: the UDC 126-7443 measures approximately 0.63 inches wide with a 163.00-inch circumference. These dimensions match the original Exmark specification for 52-inch decks.\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003eNominal width: 0.63 in (5\/8\")\u003c\/li\u003e\n  \u003cli\u003eNominal length: 163.00 in circumference\u003c\/li\u003e\n  \u003cli\u003eDesigned for 52-inch mower deck and matching factory pulley layouts\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eHow will this belt hold up under heavy-duty or commercial use?\u003c\/h3\u003e\n\u003cp\u003eThe belt is engineered for demanding mowing cycles, offering high load capacity and flexibility to resist fatigue at high RPMs. Its materials and wrap construction reduce wear and help maintain tension stability during extended or heavy-duty use.\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003eProven high breaking strength suitable for commercial workloads\u003c\/li\u003e\n  \u003cli\u003eLow wear volume in lab tests for extended service life\u003c\/li\u003e\n  \u003cli\u003eFlexibility helps prevent cracking and edge fraying under repeated bends\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003cp\u003eWho is this for: This replacement belt is ideal for homeowners, landscapers, and fleet managers who operate Exmark zero-turn mowers with 52-inch decks and need a dependable, OEM-compatible belt. Choose UDC Parts 126-7443 when you want a direct-fit part that prioritizes strength, low wear, and consistent performance without modifying pulleys or deck geometry.\u003c\/p\u003e\n\u003csection class=\"product-faq-snippet\"\u003e\u003ch3\u003eFAQ\u003c\/h3\u003e\n\u003cdiv class=\"faq-item\"\u003e\n\u003cp class=\"faq-q\"\u003eQ: Is this belt an exact replacement for Exmark 126-7443?\u003c\/p\u003e\n\u003cp class=\"faq-a\"\u003eA: Yes — UDC Parts 126-7443 matches Exmark 126-7443 dimensions and replaces 126-7443, 126-7443-SL, and 126-7443-SU.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"faq-item\"\u003e\n\u003cp class=\"faq-q\"\u003eQ: What are the belt dimensions?\u003c\/p\u003e\n\u003cp class=\"faq-a\"\u003eA: The belt measures approximately 0.63 inches (5\/8\") wide with a 163.00-inch circumference.\u003c\/p\u003e\n\u003c\/div\u003e\u003c\/section\u003e","brand":"UDC Mower Belts","offers":[{"title":"Default Title","offer_id":56823822090580,"sku":"B0FS7P8L1X","price":60.59,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1063\/2652\/4244\/files\/udc-parts-126-7443-front-packaging.jpg?v=1786978116","url":"https:\/\/gardenluxe.co.uk\/products\/udc-mower-belts-52-v-belt-5-8-x-163-for-exmark-52-inch-mowers-aramid-cords-long-life-wear-resistance","provider":"Gardenluxe Uk","version":"1.0","type":"link"}