The Rotary FJ7647-1 lift arm component is the direct replacement for the Rotary lift it came off of. Cross-referenced as ALS-7508-44, 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-7508-44
- Brand: Rotary
- Type: Genuine OEM lift arm component
- Fits: SPOA7
- 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 Release Loop - Rotary FJ7985-1
- Arm Restraint Engage Gear - Rotary FJ7449
- Arm Restraint Gear (Adjustable) - Rotary SVI Exclusive
- Arm Restraint Gear (Super Adjustable) - Rotary SVI Exclusive
- Arm Restraint Gear (Not Adjustable) - Rotary FJ7750
- Rear Arm Restraint Assy - Rotary FJ7523
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-7508-44 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.
About this fj7647 front outer
Every order for the fj7647 front outer starts with a fitment confirmation. Two lifts of the same model can carry subtle revisions between production years, and a component that fits a rev-A lift may not fit a rev-B lift built two years later. Before your card is charged we verify the piece against the parts breakdown for your specific lift serial number. That five-minute step is the difference between the part arriving and being installed the same afternoon versus the wrong piece showing up and the shop losing a day of billable work.
Technical specification & installation notes
Technical specification matches the OEM published dimensions to within manufacturing tolerance. When a shop installs the fj7647 front outer correctly, the lift returns to factory-rated performance immediately — no break-in period, no cycle-count adjustment required. The lift's safety systems (mechanical locks, hydraulic pressure relief, and electrical interlocks) treat a correctly-installed replacement exactly as they would treat a factory-original component during initial commissioning. That parity is what lets us honor warranty coverage without asking for the lift's full operating history.
Shipping & ordering
Shipping runs 3-5 business days on standard ground to the lower 48 states. Expedited overnight and two-day options are available; call 800-674-9302 before ordering to quote expedited freight. We stock the fj7647 front outer in Iowa and ship same-day for orders confirmed before 2 PM Central. Orders that come in later than that or on a Friday afternoon pick up on the next business day. A tracking number gets emailed to the address on the order the moment the package leaves our dock.
Warranty coverage
Every fj7647 front outer sold through Automotive Lift Services carries a one-year manufacturer-defect warranty. If it fails within that window due to a defect in material or workmanship, we replace it at no charge. Damage from improper installation, use outside the lift's rated capacity, side-loading, or modifications to the parent lift are not covered. The warranty is documented on your original order receipt — retain that record for the coverage period. To submit a warranty claim, contact us with the order number and a photo of the failure at [email protected].
Cross-reference & fitment
Fitment on the fj7647 front outer is verified against the lift serial number when the order comes in. Even inside one manufacturer's catalog, a lift model built in one production year can carry subtle revisions from the same model built two or three years later. Sending us the lift serial number when you place the order — either in the order notes or in a follow-up email — lets us verify the piece against that specific serial's parts list. That five-minute step catches revision mismatches before shipping and prevents the delay of an incorrect delivery.
Questions about the fj7647 front outer? Call our parts desk at 800-674-9302 or email [email protected]. We ship nationwide from our Iowa warehouse and answer fitment questions within one business day.
Front Left Outer Swing Arm - Rotary FJ7647-1
Parts that fit your lift
This Rotary part fits the lift models below. Click your model to see every part that fits it — handy for grabbing the wear items that usually go at the same time (cables, sheaves, pins, locks).
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