{"product_id":"gelaska-idler-pulley-for-john-deere-gy20629-756-05034a-with-double-sealed-bearing-oem-fit","title":"GELASKA idler pulley for John Deere — GY20629 \/ 756-05034A with double-sealed bearing, OEM fit","description":"\u003cp\u003e\u003cstrong\u003eThe GELASKA GY20629 \/ 756-05034A idler pulley is a direct-fit replacement for many John Deere, Cub Cadet and other lawn tractor models, featuring a durable pulley body and double-sealed bearing for long service life.\u003c\/strong\u003e\u003c\/p\u003e\n\n\u003cp\u003eIf your mower belt chatter, wear or alignment problems point to a worn idler, this GELASKA pulley gives you the precise dimensions and hardware to restore correct belt routing and tension. Engineered to match OEM fit and mounting points, it replaces John Deere part numbers GY20629, AUC17621 and similar references, and also covers Cub Cadet 756-05034A applications. The sealed bearing and nylon lock nut options mean lower maintenance and fewer unexpected failures.\u003c\/p\u003e\n\n\u003ch3\u003eWhich machines will this idler pulley fit?\u003c\/h3\u003e\n\u003cp\u003eThis pulley is designed to fit a wide range of lawn tractors and riding mowers from John Deere, Cub Cadet and other brands. Fitment lists include many model numbers across L, X, Z, LA, LA100-series and EZtrak lines, plus several Cub Cadet ZT, RZT and XT models. Always compare the shaft diameter and mounting style with your original pulley to confirm compatibility.\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003eCompatible with John Deere models: D100–D170 series, E100–E180 series, G110, L-series, S-series, X-series, Z225\/Z235 and more\u003c\/li\u003e\n  \u003cli\u003eAlso fits Cub Cadet: ZT1\/ZT2 series, XT1\/XT2, RZT, LT4200, LTX1050 and many Craftsman equivalents\u003c\/li\u003e\n  \u003cli\u003eReplaces OE part numbers: GY20629, AUC17621, 756-05034A, 78-133, 280-242 and related codes\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eWhat are the key specifications and hardware included?\u003c\/h3\u003e\n\u003cp\u003eThe GELASKA item follows the OEM dimensions so it mounts without modification. The GY20629 variant has an inner diameter (ID) of 0.66\" and an outer diameter (OD) of 5.25\", with a height of 1.67\". Two sizes of flanged nylon lock nuts accommodate different shaft threads depending on the part reference.\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003eGY20629 size: ID 0.66 inch, OD 5.25 inch, height 1.67 inch\u003c\/li\u003e\n  \u003cli\u003eNylon lock nut sizes: M10 for some John Deere fitments; 3\/8\"-16 for 756-05034A\/Cub Cadet versions\u003c\/li\u003e\n  \u003cli\u003ePulley diameter for 756-05034A: approximately 4.50 inches to match belt routing\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eHow does the double-sealed bearing benefit performance?\u003c\/h3\u003e\n\u003cp\u003eThe bearing incorporates two seals to keep grease in and contaminants out, which reduces wear and helps the pulley turn smoothly under load. That containment extends bearing life compared with open bearings and reduces the frequency of relubrication or early replacement.\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003eDual-seal design retains lubrication and keeps out dirt and moisture\u003c\/li\u003e\n  \u003cli\u003eSmoother rotation reduces belt wear and vibration\u003c\/li\u003e\n  \u003cli\u003eLower maintenance needs and longer service intervals\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eHow to confirm this pulley is right for my repair?\u003c\/h3\u003e\n\u003cp\u003eBefore ordering, compare the damaged pulley’s outer diameter, bore size, and mounting thread with the specs above. Check your tractor’s parts diagram or the original part number; this GELASKA pulley cross-references common OE numbers used by John Deere and Cub Cadet. If dimensions and mounting hardware match, installation should be straightforward with the existing bracket and belt path.\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003eMatch OD, ID and mounting thread to your original pulley\u003c\/li\u003e\n  \u003cli\u003eVerify OE numbers: GY20629, AUC17621, 756-05034A, etc.\u003c\/li\u003e\n  \u003cli\u003eKeep original washers or spacers if they are undamaged for correct alignment\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003cp\u003eWho is this for: This GELASKA idler pulley is aimed at homeowners, landscapers and small-fleet mechanics who service John Deere, Cub Cadet and compatible riding mowers. It’s a practical replacement for anyone needing an OEM-style pulley with improved bearing sealing—ideal when you want reliable belt tracking and less downtime from premature idler failure.\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: Does this pulley directly replace John Deere GY20629?\u003c\/p\u003e\n\u003cp class=\"faq-a\"\u003eA: Yes. GELASKA GY20629 matches the OEM dimensions and replaces John Deere GY20629 and related part numbers.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"faq-item\"\u003e\n\u003cp class=\"faq-q\"\u003eQ: Are the bearings sealed to prevent grease loss?\u003c\/p\u003e\n\u003cp class=\"faq-a\"\u003eA: Yes. The pulley uses a double-sealed bearing design to retain lubrication and exclude contaminants.\u003c\/p\u003e\n\u003c\/div\u003e\u003c\/section\u003e","brand":"GELASKA","offers":[{"title":"Default Title","offer_id":54198459269304,"sku":"B0BWMSF6P9","price":54.51,"currency_code":"CAD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0984\/0636\/7416\/files\/gelaska-front-view-assembled-pulley.jpg?v=1790589845","url":"https:\/\/canadianlawn.ca\/products\/gelaska-idler-pulley-for-john-deere-gy20629-756-05034a-with-double-sealed-bearing-oem-fit","provider":"Canadian Lawn","version":"1.0","type":"link"}