{"product_id":"top-roller-rd547-22900-rd411-22900-fit-airman-ax40-ax45-ax50u-ax50u-2-ax50u-3","title":"Top Roller RD547-22900 RD411-22900 Fit Airman AX40 AX45 AX50U AX50U-2 AX50U-3","description":"\u003cp\u003e\u003cstrong\u003eThis Top Roller is a high-quality aftermarket replacement part compatible with Airman AX40, AX45, AX50U, AX50U-2, AX50U-3 and matches OEM Part# RD547-22900, RD411-22900.\u003c\/strong\u003e\u003c\/p\u003e\u003ch2\u003eProduct Overview\u003c\/h2\u003e\u003cp\u003eThis heavy-duty carrier roller is engineered to support the track chain and ensure smooth rotation for mini excavators. It is built using hardened materials to resist wear and maintain performance in tough working environments.\u003c\/p\u003e\u003ch3\u003eKey Features \u0026amp; Performance\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eHeavy-Duty Construction:\u003c\/strong\u003e Built with high-grade steel for maximum durability and load capacity.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003ePrecision Fitment:\u003c\/strong\u003e Designed to original equipment dimensions for easy installation and reliable operation.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eAdvanced Sealing:\u003c\/strong\u003e Equipped with internal seals to prevent contamination and extend service life.\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eFitment \u0026amp; Compatibility\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eCompatible Models:\u003c\/strong\u003e Airman AX40, AX45, AX50U, AX50U-2, AX50U-3\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003ePart Number(s):\u003c\/strong\u003e RD547-22900, RD411-22900\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eTechnical Specifications\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eComponent:\u003c\/strong\u003e Top Roller\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMaterial:\u003c\/strong\u003e Heat-treated steel\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eFinish:\u003c\/strong\u003e Protective coating for rust resistance\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eFrequently Asked Questions\u003c\/h3\u003e\u003cp\u003e\u003cstrong\u003eQ:\u003c\/strong\u003e Does this roller come pre-lubricated? \u003cstrong\u003eA:\u003c\/strong\u003e Yes, this top roller is sealed and lubricated for life to ensure low-maintenance operation. \u003cstrong\u003eQ:\u003c\/strong\u003e Will this work on both the left and right sides? \u003cstrong\u003eA:\u003c\/strong\u003e Yes, this part is non-directional and can be installed on either side of the machine.\u003c\/p\u003e\u003cp\u003e\u003cem\u003eCompatibility may vary by serial number. Verify fitment before purchase.\u003c\/em\u003e\u003c\/p\u003e","brand":"Northline Parts","offers":[{"title":"Default Title","offer_id":42819826090055,"sku":"ZZ2T00661","price":157.39,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0681\/7123\/5399\/files\/12_88bfd6d7-5c2e-40a2-96c3-7a848472596f.jpg?v=1779786621","url":"https:\/\/www.northlineparts.com\/products\/top-roller-rd547-22900-rd411-22900-fit-airman-ax40-ax45-ax50u-ax50u-2-ax50u-3","provider":"Northline Parts","version":"1.0","type":"link"}