The Rotary JG35 seal kit is the direct replacement for the Rotary lift it came off of. Cross-referenced as ALS-9792-59, 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 seal kit 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-9792-59
- Brand: Rotary
- Type: Genuine OEM seal kit
Hydraulic parts almost always fail by leaking. A rod seal starts weeping and the cylinder body goes wet; a hose cracks near its crimp; a fitting's o-ring flattens; the lowering valve stops seating and the lift drifts down overnight. Fluid finds the weakest seal in the loop and pushes past it. The symptom — a puddle, a slow sag, a spongy lift — tells you roughly where in the loop to look.
Not every hydraulic problem is the cylinder. A lift that lowers itself overnight usually has a lowering valve that won't seat or a leaking check, not a bad seal. A lift that jerks or won't reach full height can be a tired pump or a flow valve out of adjustment. And a hose that's cracked near the crimp will spray under pressure — a real hazard, not just a mess to mop up.
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.
- O Ring - Rotary JG37
- Cylinder Assembly (DTO-PT-RBU) - Rotary JG199
- Fiberglassed Cylinder 68" - Rotary JG1103
- Cylinder Assembly (WABU) - Rotary JG189
- 7" Seal Kit - Rotary - AP00696
Replacing your seal kit
A lowering or flow valve issue — a lift that drifts down or won't reach full height — is often fixed at the valve rather than the cylinder, but it takes a methodical check to be sure. Isolate whether the leak is internal or external, then service or replace the valve and confirm the lift holds height afterward. The step-by-step guide lays out how to trace it. Full step-by-step: how to reseal a lift cylinder.
Find the right part for your lift
If you are not sure this part matches your setup, the fastest check is the visual breakdown: open our Rotary parts lookup, pick your model, and match your part against the drawing where every item is numbered. Can't read the model plate? our guide to finding your model number shows exactly where it lives on each lift type, and we are a phone call away if you would rather have us confirm it.
Signs of a hydraulic problem
Inspect every hose end to end. You're looking for cracked or brittle covers, blisters, weeping at the crimped fittings, and any spot rubbing a cable or bracket. A hose that's damp near the crimp is about to let go there. Squeeze it — a healthy hose is firm, an old one goes hard and checked or soft and mushy. Either extreme means replace it.
Parts commonly replaced at the same time
One trip up, one refill, one bleed: order the companion hydraulic parts with this one. A seal kit alongside a cylinder, a fresh hose, and the correct oil turn a partial fix into a finished job. Tell us what lift you have and we will build the kit so nothing is left to fail next.
Hydraulic fluid
The usual fill is ISO-32 hydraulic oil, with some legacy lifts running Dexron ATF; confirm which your lift uses before topping off and keep the two separate. Bleed after filling and check the level again once the air is out — and see your manual for the exact capacity, which is model-specific.
Safety notes
Pressure and cleanliness are the two rules. Bleed the system completely so there is no air to compress, keep contamination out of every open port, and prove the lift holds at full height with no drift before it sees a vehicle. If you are not certain the bleed is complete, do it again — this is not the place to guess.
Before you order
Ordering tip: hydraulic parts are matched to the lift's pressure and geometry, so read the model and serial off the plate and, for hoses and cylinders, have the old part's dimensions. Plan to replace the oil and bleed the system as part of the job, and add a seal kit if you are opening the cylinder anyway.
Check your lift's serial before ordering
The most common reason a lift part comes back is not a defect — it is a revision mismatch. Manufacturers change sub-parts between production runs while keeping the same lift model name, so "it fits my lift model" is not always enough. The model plate carries the serial number that pins your lift to a specific run, and that is the number that settles which version of this part belongs on your lift.
Can't find the plate? Measure the old part — overall length, bolt-hole spacing, thread size on anything threaded — and photograph it from a couple of angles. Send that with your lift's brand and rough age and we will match it against the parts breakdowns we service from every week.
Why buy your Rotary seal kit from Auto Lift Services
We install, inspect, and repair Rotary lifts every week — the ALS-9792-59 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 — and every part ships genuine, no aftermarket substitution unless you ask for it.
About this jg35 ring rotary
Sourcing the correct jg35 ring rotary is not the spot a shop wants to gamble. This piece sits inside a load path the lift manufacturer engineered to specific tolerances, and a substitute that looks close but is off by even a small margin can transfer load onto a neighboring component that was not designed for it. We stock this exact part to the OEM specification the original manufacturer publishes, which is why techs who have been through a bad aftermarket cycle keep coming back to us for the same replacement whenever their next need comes up.
Technical specification & installation notes
Technical specification matches the OEM published dimensions to within manufacturing tolerance. When a shop installs the jg35 ring rotary 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
Placing an order online is the fastest path — add to cart, check out, done. If the shop needs a purchase order, net-30 terms, or a formal quote for a fleet-service contract, our accounts team handles those via email at [email protected] or by phone at 800-674-9302. Volume pricing on the jg35 ring rotary kicks in at 10+ pieces on the same order for common wear items. Ask about the volume rate specifically before you check out — many fleet buyers stock 6-12 pieces at a time and the discount is meaningful over that shelf life.
Warranty coverage
Return policy on the jg35 ring rotary follows our store-wide standard: all parts sales are final; exchanges only if the piece arrives defective. In the case of a defective delivery, ship the failed piece back to us at your cost, we verify the defect on receipt, and ship a replacement at ours. Wrong-item deliveries where we made the shipping error follow a different path — we reimburse the return shipping cost and cover freight on the correct part. Contact [email protected] with the order number to start either process.
Cross-reference & fitment
Alternate applications for the jg35 ring rotary sometimes exist. Where a common part fits multiple lift models across a manufacturer's catalog, cross-reference sheets show the compatible models explicitly. If you are consolidating parts stock and want to know which of your lifts the piece covers, email the request to [email protected] with a list of the lift models in your bay — we return a compatibility grid showing which lifts accept the replacement and which need a different number.
Questions about the jg35 ring rotary? 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.
O-Ring 9.975 ID x 10.395 OD - Rotary - JG35
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