The Rotary ARO16 is a 16,000 lb four-post alignment lift, and the alignment mission is what makes its parts list different from a straight service four-post. When you order rotary aro16 parts, you are not just chasing cables and locks — you are keeping the alignment geometry accurate, which means slip plates, rear rolling slips, turn plates, and the alignment-specific safety-lock system have to be in shape. This page covers the ARO16 anatomy, the wear items alignment shops watch, how to identify your specific ARO16 build, and where OEM matters most. If you have inherited an alignment bay and are figuring out the parts stack for the first time, the sections below give you the same mental model our parts desk uses on every call.
What the Rotary ARO16 is
The ARO16 is Rotary’s 16,000 lb four-post alignment lift, built for shops that live on alignment work — passenger cars, pickups, vans, and light commercial vehicles. It has four columns, hydraulic power in the control post, mechanical safety locks in every column, and the runways are set up with the flat-and-level tolerances an alignment lift needs. Slip plates in the front runways, rolling rear slip plates, and turn plates transform the platform from a service lift into an alignment station. Because the ARO16 is doing alignment work all day, rotary aro16 parts wear predictably and the alignment components need attention alongside the usual four-post service items.
ARO16 alignment parts anatomy
The ARO16 shares the standard four-post parts groups — four corner cables, sheaves and roller assemblies, safety-lock ladders in each column, sliding jack rails, hydraulic cylinder in the powerside column, and the power unit — and layers alignment-specific parts on top. Turn plates set into the front runways handle steering-angle work. Rolling rear slip plates on the back runways let the rear axle relax during setup. Locking pins hold the plates during drive-on. Alignment-lift safety locks are engineered to hold the runways at true level, which is not identical to a service-only four-post lock. Every category in rotary aro16 parts catalogs traces back to one of those anatomy groups.
Common wear items and service intervals
Lifting cables are the most-replaced part on any four-post, and the ARO16 is no exception — annual inspection, condition-based replacement per Automotive Lift Institute guidance, and attention to birdcaging, broken strands, and swaged-fitting corrosion. On top of the standard four-post list, alignment shops watch turn-plate bearings, rolling slip-plate rollers and grease fittings, locking-pin springs, and the slip-plate locking mechanisms themselves. Air lines, lock-release airbags, hydraulic hoses, filter screens, latch springs, and sheaves round out the list. Most ARO16 owners plan a comprehensive cable-and-latch refresh around the ten-year mark and freshen the slip-plate bearings on a shorter cycle if the shop runs high alignment volume. A slip plate that binds is invisible to the driver but obvious to the alignment machine, so keep the plates on your monthly walk-around.
How to identify your ARO16 configuration
Before ordering, pull the serial tag on the powerside column near the control post, and record the full model designation and the complete serial number. The ARO16 has been produced in multiple runway lengths, column heights, and slip-plate configurations over its production years, and some superseded parts do not cross generations — alignment components in particular can differ between builds. Rotary Solutions publishes the illustrated parts breakdown for every ARO16 build on their support site; matching the exploded-view page number to your ticket saves everyone from returned parts. Our Rotary lift parts buyer’s guide walks the identification process step by step.
OEM versus aftermarket on alignment lifts
For safety-critical components — cables, safety locks, hydraulic cylinders, latch springs, and airbags — we recommend genuine OEM or ALI-tested equivalents. For the alignment-specific parts — turn plates, rolling slip plates, and locking pins — OEM is the safer path because alignment accuracy depends on the parts staying true to the original geometry. A slip plate with a stiff bearing throws readings just enough to chase your tail all day. For non-load-bearing consumables like decals, drip trays, and jack pads, quality aftermarket rotary aro16 parts save real money. Our Rotary aftermarket parts collection labels the tiers clearly.
Installation and service notes
The ARO16 is field-serviceable, but alignment lifts demand more care during service because the flat-and-level tolerances are tighter than a plain service four-post. Cable replacement follows standard four-post procedure with the runways cribbed and the hydraulic pressure released. After any service that disturbs the runways, re-level the lift to the alignment-accuracy spec in the Rotary installation and operation manual before returning it to alignment work — not just plumb-and-square, but the alignment tolerance. Our 4-post lift parts guide covers four-post cable and lock work in more depth.
ARO16 versus ARO22 and service four-posts
The ARO16 sits below the ARO22 in Rotary’s alignment family. The ARO22 is a 22,000 lb alignment lift with heavier cables and columns for truck alignment work; it shares the alignment-parts family with the ARO16 but the parts themselves are sized differently and do not usually interchange. Compared with a straight service four-post like the SM14 or SM18, the ARO16 adds all the alignment components and uses alignment-grade safety locks. Verify the model designation on the serial tag before you buy rotary aro16 parts, especially for slip plates, turn plates, and locking pins.
Ordering the right ARO16 parts the first time
The quickest route is to send us the serial number and the parts-breakdown page number, and we will confirm the current supersession before shipping. Start on our parts lookup page, or call 800-674-9302 and we will pull the exploded view with you on the line. We stock the common rotary aro16 parts — cables, safety locks, turn plates, slip-plate components, cylinders, and seal kits — and drop-ship the less-common items direct from Rotary Solutions. Call 800-674-9302 and we will get you back to alignment work.
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