{"product_id":"automann-ab1dk20d-9584-air-spring-replaces-firestone-w01-358-9584","title":"Automann AB1DK20D-9584 Air Spring – Neway Suspension | Replaces W01-358-9584","description":"\u003cp\u003eAutomann AB1DK20D-9584 rolling lobe air spring with integrated AB9471P bracket, a direct aftermarket replacement for Firestone W01-358-9584 (1T15L-1.5 bellows) and Holland \/ Neway 90557250 on trailer-style rear suspensions. Compact 8.00\" design height fits low-clearance suspensions; rated 5,100 lb at 80 PSI and 6,400 lb at 100 PSI with an internal bumper.\u003c\/p\u003e\n\u003ch2\u003eSigns You Need a New Air Spring\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003eSuspension sagging or sitting lower on one side\u003c\/li\u003e\n\u003cli\u003eVisible cracks, dry rot, or chafing on the rubber bellows\u003c\/li\u003e\n\u003cli\u003eAudible air leak at the bellows or top plate\u003c\/li\u003e\n\u003cli\u003eSuspension dump \/ refill cycles run more frequently than normal\u003c\/li\u003e\n\u003cli\u003eHarsh ride or excessive body roll despite correct ride height\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch2\u003eSpecifications\u003c\/h2\u003e\n\u003ctable\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003cth scope=\"row\"\u003eManufacturer\u003c\/th\u003e\n\u003ctd\u003eAutomann\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth scope=\"row\"\u003ePart Number\u003c\/th\u003e\n\u003ctd\u003eAB1DK20D-9584\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth scope=\"row\"\u003ePart Type\u003c\/th\u003e\n\u003ctd\u003eRolling Lobe Air Spring (with bracket)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth scope=\"row\"\u003eFirestone Bellows Number\u003c\/th\u003e\n\u003ctd\u003e1T15L-1.5\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth scope=\"row\"\u003eDesign Height\u003c\/th\u003e\n\u003ctd\u003e8.00 in\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth scope=\"row\"\u003eMaximum Height\u003c\/th\u003e\n\u003ctd\u003e14.40 in\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth scope=\"row\"\u003eMinimum Height\u003c\/th\u003e\n\u003ctd\u003e4.50 in\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth scope=\"row\"\u003eMaximum Diameter\u003c\/th\u003e\n\u003ctd\u003e11.40 in\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth scope=\"row\"\u003eTop Plate\u003c\/th\u003e\n\u003ctd\u003e9.00 in dia, 2 studs at 5.50 in C-to-C\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth scope=\"row\"\u003eBottom Plate\u003c\/th\u003e\n\u003ctd\u003e9.53 in dia, composite (plastic), 1 hole\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth scope=\"row\"\u003eLoad Rating @ 80 PSI\u003c\/th\u003e\n\u003ctd\u003e5,100 lb\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth scope=\"row\"\u003eLoad Rating @ 100 PSI\u003c\/th\u003e\n\u003ctd\u003e6,400 lb\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth scope=\"row\"\u003eNatural Frequency\u003c\/th\u003e\n\u003ctd\u003e80 CPM\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth scope=\"row\"\u003eBumper\u003c\/th\u003e\n\u003ctd\u003eInternal\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth scope=\"row\"\u003eBracket\u003c\/th\u003e\n\u003ctd\u003eAB9471P (integrated)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003ch2\u003eCross References\u003c\/h2\u003e\n\u003cp\u003eThis part replaces or is equivalent to the following part numbers:\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eFirestone:\u003c\/strong\u003e W01-358-9584, 9584\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eHolland \/ Neway:\u003c\/strong\u003e 90557250, 90557224, 90557411\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eContiTech:\u003c\/strong\u003e 68675\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMeritor \/ Euclid:\u003c\/strong\u003e FS9584, E-FS9584\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eDayton:\u003c\/strong\u003e 352-9584\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eTorque:\u003c\/strong\u003e TR9584\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWorld American:\u003c\/strong\u003e WA01-9584C\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch2\u003eApplications\u003c\/h2\u003e\n\u003cp\u003eThis rolling lobe air spring fits trailer and truck suspensions originally specified with any of the cross-referenced part numbers, including:\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eHolland \/ Neway trailer suspensions using 90557250\u003c\/li\u003e\n\u003cli\u003eNeway suspensions using 90557224 (low-clearance fitting)\u003c\/li\u003e\n\u003cli\u003eNeway suspensions using 90557411\u003c\/li\u003e\n\u003cli\u003eOther trailer and truck rear suspensions specified with W01-358-9584\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cem\u003eVerify your existing part number and bracket configuration before ordering to confirm fitment.\u003c\/em\u003e\u003c\/p\u003e","brand":"Automann","offers":[{"title":"Default Title","offer_id":39853853081703,"sku":"AB1DK20D-9584","price":149.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0053\/0730\/1991\/files\/Screenshot_2026-01-26_at_2.45.19_PM.png?v=1769460354","url":"https:\/\/www.allprodiesel.net\/products\/automann-ab1dk20d-9584-air-spring-replaces-firestone-w01-358-9584","provider":"All Pro Truck Parts","version":"1.0","type":"link"}