Coats 8181190 Large Air Motor for Tire Changer - OEM
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Coats Tire Changer Air Motor - 8181190 OEM Replacement
Your rim clamp tire changer lives and dies by its turntable drive, and when that air motor starts stalling mid-cycle you're not just slowing down, you're losing bay time you can't get back. The Coats 8181190 Large Air Motor is the OEM part that gets you back to full speed. It's a genuine air motor for tire changer service, built to the same spec that came off the line, so you're not gambling on a knockoff that fits loose and wears out early. A drive motor is the one component you can't work around when it fails, and a marginal replacement just puts you right back on this same page in a few months.
This is a reversible, dual-direction unit. That two-way rotation is what lets you seat and break beads cleanly without fighting the machine, and it's the difference between a smooth cycle and a tire that won't cooperate. As a coats tire changer air motor, it drives the turntable with the torque you need for stubborn low-profile and heavier assemblies, then reverses just as cleanly when the job calls for it. When you're demounting a tight bead or working a wide wheel, that clean reverse keeps you from muscling the machine and keeps the rim out of harm's way.
Construction is high-quality metal throughout, so it holds up to the daily grind of a busy shop. This isn't a plastic-geared stand-in; it's the same rugged build the machine was designed around, which is what keeps performance consistent from the first cycle to the thousandth. If you've been nursing a tired motor along, dropping in the correct coats tire changer parts is the fix that pays for itself in recovered throughput. Every minute a tech spends coaxing a weak turntable is a minute the bay isn't earning. Swap in the right motor and the machine goes back to doing exactly what it did when it was new. One part. Full function restored.
Specifications
| Product Number | 8181190 |
| Fits | Coats Rim Clamp Tire Changers |
| Motor Type | Reversible Air Motor |
| Operation | Dual-Direction |
| Material | High-Quality Metal Construction |
| Use Case | Tire Changing Equipment |
What's Included
- Coats 8181190 Large Air Motor (OEM)
Mounting hardware and any tire changing machine air motor elbow fittings or tire changing machine air motor hose fittings vary by machine model. Confirm what carries over from your existing setup before you order. Call to confirm included accessories.
Where This Tire Changer Air Motor Fits
This is a drive component for professional tire service, not a universal-fit part. Here's who it's for.
Running a Coats rim clamp machine day in and day out? This restores the turntable drive so mounting and demounting stays fast through a full schedule.
High-volume bays can't afford a machine that hesitates. A fresh coats tire changer machine air motor keeps every cycle predictable.
When your rig runs a Coats changer, uptime is revenue. Keeping the correct coats tire changer repair parts on hand means a bad motor doesn't sideline your day.
In-house tire changing machine air motor replacement keeps your equipment serviceable without waiting on outside repair.
Not sure this is the right motor for your specific model? We keep a working coats tire changer parts list on hand, along with the other coats tire changer machine parts you're likely to need, and can help you match the fitment before you buy. Getting the drive motor right the first time means you order once, install once, and get back to work.
Why buy this Coats tire changer machine part from us: We stock genuine OEM Coats components, not aftermarket substitutes, so what you install matches your machine and stays covered by the 1 Year Coats parts warranty. Every order ships free to all 48 contiguous states, and our team confirms fitment against your exact model before it leaves the shelf. One call, the right part, no guesswork.
Warranty
Coats covers Tire Changer and Inflation Accessories with a 1 Year parts warranty. There is no labor warranty on accessory items.
For reference across the broader Coats tire changer lineup: RC Series Rim Clamp Tire Changers and APS Series carry 1 Year parts with 6 Months labor. X Series, APX Series, Maxx Series (2023), and 80C/90C machines carry 3 Years parts with 6 Months labor. All Heavy Duty Tire Changers carry 1 Year parts with 90 Days labor.
Air-operated components must be supplied with clean, dry air. Failures caused by air-system contamination such as water, rust, or foreign debris are not covered. Warranty applies to the original purchaser and is not transferable.
Warranty registration may be required after purchase. Refer to included documentation for details.
Talk to a Coats Parts Specialist
Not sure this air motor matches your tire changer model? Call us at (855) 498-2147 and we'll confirm fitment before you order.
Frequently Asked Questions
Which Coats tire changers does the 8181190 fit?
The 8181190 is designed to fit most Coats brand rim clamp tire changers. Because turntable drive setups vary across the RC Series and other rim clamp models, confirm your machine model with us before ordering so we can verify the match.
What does "reversible" or "dual-direction" mean on this motor?
It drives the turntable in both directions. Two-way rotation lets you work the tire on and off cleanly and back the machine off when needed, instead of being locked into a single rotation direction.
Is this a genuine OEM part or an aftermarket copy?
This is a genuine OEM Coats part, number 8181190. It's built to the original spec, so it fits and performs like the motor that came with your machine, no loose-fit guesswork.
What is this motor made of and will it hold up in a busy shop?
This is the same rugged OEM drive unit the machine was engineered around, not a lightweight substitute. That's what keeps turntable performance consistent cycle after cycle in a high-volume bay, instead of fading the way a cheaper replacement does.
Does the air motor come with fittings or mounting hardware?
Included accessories such as elbow fittings, hose fittings, and mounting hardware can vary by machine. Much of it may carry over from your current setup. Call to confirm included accessories before you order.
Why does my air supply matter for this motor?
Air-operated components need clean, dry air to run right and stay covered under warranty. Water, rust, or debris in the air system can cause failures that the Coats warranty does not cover, so a good filter and dryer protect your investment.
What warranty comes with this air motor?
As a Tire Changer and Inflation Accessory, it carries a 1 Year parts warranty from Coats. There is no separate labor warranty on accessory items, and coverage applies to the original purchaser.
How is this shipped and how fast can I get it?
This item ships free to all 48 contiguous states. As a genuine OEM part backed by a 1 Year Coats parts warranty, it's stocked and ready to move. If your machine is down and you need to confirm timing, call us and we'll help you get it out the door.
How do I know if my old motor actually needs replacing?
Common signs are stalling under load, weak or inconsistent turntable rotation, or a motor that won't reverse cleanly. If your machine is fighting you on routine tires, a worn drive motor is a likely cause.
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