The Rotary N237 lift arm component is the direct replacement for the Rotary lift it came off of. Cross-referenced as ALS-7528-36, 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 lift arm component 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-7528-36 Brand: Rotary Type: Genuine OEM lift arm component Fits: SPOA7 200 Series, SPOA9 EH-1 200 Series, SPOA9 EH-2 200 Series, SPOA9 EH-4 200 Series Lift type: 2-post lift The restraint gear on a 2-post lift is the toothed gear that engages when the lifting arm swings in under load, locking the arm at whatever angle the tech set it to. When teeth wear round, chip, or the pawl gear that engages into the restraint gear loses its point, the arm can swing under load — and a swung arm with a vehicle on it drops the vehicle. Any restraint gear that will not positively catch the arm under light hand pressure needs to come off, whether the teeth look okay or not. 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. Arm Restraint Pin - Rotary N121-1 Arm Restraint Retaining Pin - Rotary N119-3 Outer Swing Arm - Rotary N25-1 Inner Swing Arm - Rotary N25-2 Arm Restraint Pin - Rotary N167-2 Rear Arm (SPO9) - Rotary N241 Not sure this fits? Here's how to check Pull the number off your lift's model plate first — model and serial both. Manufacturers run mid-cycle revisions that keep the model name but change hardware, so two lifts with the same name on the column can take different parts. The serial is what removes the guesswork. Second check: compare the old part against this listing before you order. Length, mounting pattern, and thread sizes tell most of the story. If anything doesn't line up, or if the old part is too worn or broken to measure, call us with photos — we work on these lifts every week and can usually confirm fit from a picture and the lift's serial faster than you can dig through a parts diagram. Also inspect Arm pin — if you had a bad restraint gear you may also have a mushroomed or grooved arm pin Foot-pad rubber — intact, securely attached Return spring on the pawl Arm itself — broken welds, cracks, severe rust A restraint gear that will not engage is a lift that is unsafe to load. Do not put a vehicle on the lift until you confirm both arms lock positively under hand pressure. Why buy your Rotary lift arm component from Auto Lift Services We install, inspect, and repair Rotary lifts every week — the ALS-7528-36 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.
