The Rotary S120103 replacement part is the direct replacement for the Rotary lift it came off of. Cross-referenced as ALS-7544-83, it is the genuine Rotary part — same part number, same fit, and same working specification as the one already on your lift. Ordering the Rotary replacement part from us gets you the OEM piece that matches the lift, not an aftermarket knock-off that is close but not the same. Specifications Part number: ALS-7544-83 Brand: Rotary Type: Genuine OEM replacement part Fits: AR12, AR123, ARO123, SM12, SM123 Lift type: 4-post lift Lift manufacturers revise their machines mid-production without changing the model name, which means two lifts that look identical across the shop can take different parts. The part number on this page fits a specific design — and the way to be sure it fits yours is the model and serial number on your lift’s data tag, not the model name alone and not memory. Serial-range splits are the most common reason a correctly named part comes back: right lift, wrong revision. Thirty seconds with the data tag before you order beats a week of freight in both directions. Related parts for this lift The parts below are commonly ordered alongside this one — cables, sheaves, seals, and hardware wear on similar schedules, and most repairs go faster when the whole set is done in one visit. Elbow - Rotary T140074 Wheel Replacement Kit (See BH-7544-95) For RJ4501/RJ6000 End Assembly (need 4 to repair 1 jack) Wheel Replacement Kit (This kit is BH-7544-73WK doubled) - Need 2 to repair 1 jack - Rotary SB100005 Wheel Clip - Rotary SB700002 Bumper - Rotary SB700001 Urethane Wheel - Rotary SB700005 Confirm this is the right part before you order Lift manufacturers revise parts mid-production without changing the model name, so the same lift bought two years apart can take two different revisions of the same component. Before you order, find the model plate on the lift — on most 2-post lifts it rides on one of the columns at eye level, on 4-post lifts it is usually on a column or the power-unit side runway — and note the full model number and serial. The serial dates the lift to a production run, and that is what decides which revision fits. If the plate is painted over or missing, take a photo of the part you are replacing next to a tape measure and send it to us. Between the dimensions, the mounting pattern, and what lift it came off of, we can almost always identify the exact part before you spend money on the wrong one. Find the data tag — usually on a column or the power unit — and read the model and serial before ordering. If the tag is painted over, gone, or unreadable, look for numbers stamped into the old part itself, or send us a photo of the part and its mounting; we identify lift parts from photos every week. While you are at the tag, note it somewhere permanent, because you will need it again. If the replacement does not match the old part when you unbox it, stop and call before installing it. Forcing a near-fit part onto a lift is how a parts order turns into a structural problem — the fit difference usually exists for a reason. Why buy your Rotary replacement part from Auto Lift Services We install, inspect, and repair Rotary lifts every week — the ALS-7544-83 is a part we handle in the shop, not a random SKU we drop-ship. The phone answers if you have a question mid-install — call 800-674-9302. We confirm the right part for your lift's serial and production year before you order. Every part ships as genuine Rotary — no aftermarket substitution unless you specifically ask for an aftermarket equivalent. If you also need companion wear items — cables, sheaves, seals, hardware — for the same repair, use our parts lookup and we will build the whole kit for your lift so you order once and finish the job.
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