When your dental equipment needs service, missing even a minor part can cause a major disruption. Maybe it’s a foot control toggle that’s worn down. A cracked water bottle lid. Or a delivery system handle that’s come loose. These aren’t big fixes, but if you don’t have the right replacement part, your entire workflow can grind to a halt.
That’s why A-dec offers a full line of replacement parts, designed and manufactured precisely for your A-dec equipment, and readily available when you need them. Whether you’re handling routine maintenance or responding to something unexpected, using A-dec parts ensures the performance, safety and reliability your equipment—and your practice—depend on.
Why original A-dec parts matter
Dental equipment is a significant investment, and with A-dec, you invested in the best. It’s important to remember that every component—down to the smallest parts like o-rings—plays a role in how reliably your A-dec equipment functions and how long it lasts. That’s why we recommend using only A-dec service parts for maintenance and repairs.
Made from the same high-quality materials as the originals, and tested under the same rigorous conditions, A-dec service parts are engineered to work seamlessly within the existing equipment ecosystem. That means fewer breakdowns, improved safety for patients and staff, and no surprises during procedures. Choosing A-dec service parts also protects your warranty and helps you avoid compatibility issues.
So, while it might be tempting to save a few pennies with an off-brand substitute, remember: Using A-dec service parts will keep your A-dec equipment running its best. And finding what you need has never been easier!
Find thousands of parts on A-dec.com
In the past, looking for replacement parts meant flipping through PDFs or calling in for support. Now you can simply search online. A-dec recently added more than 2,400 new part-specific pages to a-dec.com, with more to come! Each page includes product images, descriptions, compatible equipment and reference numbers, all designed to help you quickly identify the part you need.
If you know the part number of what you want, simply enter it to start the search (for example, searching “90.1768.01” will bring you straight to this part detail page.)
Don’t know the exact name or number of the part you need? No problem. With AI-powered search, you can simply enter a keyword (or even a visual description), and smart results will help you quickly find the right item. Try it for yourself.
Search faster with the A-dec+ Service app
The A-dec+ Service app takes convenience a step further, giving technicians and practice teams an easy way to look up parts and access information right from their mobile device.
This video demonstrates how the A-dec+ Service app uses AI to instantly identify parts and streamline your service workflow:
Keep your equipment running smoothly
While A-dec equipment doesn’t require a lot of maintenance, it benefits from periodic inspection and replacement of parts, just like any other equipment. A-dec Preventive Maintenance Kits simplify service and eliminate guesswork by packaging common service items into annual and 5-year maintenance kits for your A-dec dental equipment. They’re an easy way to keep your A-dec equipment running smoothly.

In addition to the maintenance kits, here are commonly used service parts that technicians often keep on hand for repairs and preventive maintenance (also found on page 18 of the A-dec parts catalog):
| DESCRIPTION | PART NUMBER |
|---|---|
| Tool, .5 in torque adapter, syringe nut | 23.1354.00 |
| Diaphragm, Top Cap, .75 x 1.65 x .013" (10) | 38.0519.01 |
| Cartridge ASSY, WTR Valve, OTC | 38.0520.00 |
| Water cartridge assembly, dry (version 1) | 38.1783.00 |
| Water cartridge assembly (version 2) | 38.1934.01 |
| Water cartridge assembly, OTC (version 1) | 38.1780.00 |
| Diaphragm, 500 control block (5) | 38.1787.01 |
| Water cartridge assembly, dry (version 2) | 38.1958.01 |
| Water bottle, w/base, White | 90.1768.01 |
| DESCRIPTION | PART NUMBER |
|---|---|
| Tubing, HVE, Smooth, Dark Surf, 50' | 90.1953.00 |
| Tubing, HVE, Smooth, Gray, 50' | 90.1954.00 |
| Tubing, SE, Smooth, Dark Surf, 100' | 90.1955.00 |
| Tubing, SE, Smooth, Gray, 100' | 90.1956.00 |
| Tubing, ¼" OD, Blue, Urethane, Alpha, 100' | 90.2014.00 |
| Tubing, ¼" OD, Yellow, Urethane, 100' | 90.2013.00 |
| Key, flow adjustable, w/o-ring, autoclavable, 500 | 38.1808.01 |
| Knob, flow adjustment, 300 | 38.1823.00 |
| Diaphragm, 3 position | 38.1833.01 |
| Service Kit, Century Plus, Black, W/O Tools | 38.0537.01 |
| Valve core removal tool | 98.0010.00 |
| Nut ASSY, Syringe, Smooth | 23.1112.00 |
| Valve ASSY, Kit, Pencil, Soft, Automatic | 23.1234.00 |
| Wrench, Syringe Surf 4, POM | 98.0900.00 |
| Valve ASSY, Button, Syringe, Autoclavable | 23.1232.01 |
| Valve assembly, activation, w/ tubing, White (2) | 90.2082.00 |
| Syringe Nut ASSY, Locking | 23.1090.00 |
| Screen,Ellipse,Solids Trap (10) | 11.1284.01 |
| DESCRIPTION | PART NUMBER |
|---|---|
| Hex key, T-handle, ⅜ x 6" | 008.025.00 |
| Hydraulic fluid, 1 pint | 61.0197.00 |
| DESCRIPTION | PART NUMBER |
|---|---|
| Lens dental light | 28.0503.01 |
| Shield assembly, dental light, 200, AHZ | 28.1991.00 |
| Light shield assembly, 300 | 28.2031.00 |
| Lamp, halogen, 17V | 041.709.00 |
| Lubriplate, ⅜ ounce tube | 048.107.00 |
| Lens shield and gasket, OTC, LED | 90.1343.00 |
| LED light label kit | 90.1513.00 |
| DESCRIPTION | PART NUMBER |
|---|---|
| Screw button head socket, 10-32 x ¼", SST | 002.094.02 |
| Switch assembly, normally open, momentary, 20", 2-MTE | 43.0010.00 |
| Cuspidor kit, single manifold | 90.1408.00 |
| DESCRIPTION | PART NUMBER |
|---|---|
| Toggle, FT Control, W/Pin, Gray 3 | 38.0075.04 |
| Retaining ring, internal, 5.00 OD | 38.0237.00 |
| DESCRIPTION | PART NUMBER |
|---|---|
| HLDR, hex wrench set | 009.018.00 |
| O-ring, EPDM, .056 ID x .060W | 034.007.01 |
| O-ring, EPDM, .426 ID x .070 Wall | 034.013.01 |
| O-ring, EPDM, .206 ID x .103 Wall | 034.107.01 |
| O-ring, EPDM, .921 ID x .139 Wall | 034.213.00 |
| Lubricant, silicone |
98.0090.01 |
| Lubricant, silicone, 5.3 oz | 98.1120.00 |
Go to the A-dec Prevention & Maintenance section of the A-dec Service Parts catalog to see available maintenance kits and service parts, and contact your authorized A-dec dealer to purchase them.
Get support that goes beyond the box
The A-dec Parts and Performance page is your one-stop for all things related to A-dec parts—including the Service Parts catalog, parts search, and the A-dec+ Service app.
Whether you're replacing a single item or doing a full-service check, we’re here to help you do it right. In addition to our growing online catalog and mobile tools, A-dec offers extensive resources to keep your equipment performing at its best, including technical documentation, installation guides, training videos, and real-time support from our expert Customer Service team.
It isn’t just about fixing what’s broken. Choosing A-dec replacement parts is about protecting your investment, minimizing downtime, and making sure your equipment serves you well for years to come. So you can treat every patient with confidence.

