Graco Triax II Replacement Pump for Ultra MAX Cordless Handheld, 17P187
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Graco 17P187 Triax II Replacement Pump for UltraMAX Cordless Handheld
The Graco 17P187 is the Triax II replacement pump for UltraMAX Cordless, Ultimate MX Cordless and TC PRO PLUS Cordless airless handheld sprayers. It is a drop-in ProConnect pump, so you can swap it on the job. Graco lists the 17P187 as the replacement pump for the UltraMAX Cordless 17M367.
Key Features
- Triax II triple piston pump: Graco says it gives full tip support.
- Built to last: stainless steel and carbide components, bonded with a high-strength polymer.
- ProConnect: modular, drop-in design for fast replacement on the job.
- No inlet check valve: Graco says this lets you prime and spray in seconds.
- Service life: Graco says it pumps 3X more gallons before service.
Where to Use It
Graco lists the 17P187 for the UltraMAX Cordless, Ultimate MX Cordless and TC PRO PLUS Cordless sprayers. Not for the corded models and the standard Ultra, Ultimate and TC Pro cordless models. If your model is not named here, contact us before ordering.
What's in the Box
- 1 Graco Triax II replacement pump (17P187)
The pump only. The sprayer, battery and tips are not included.
Which Triax II Pump?
Graco makes three handheld pumps. Corded sprayers use the 17P185. Ultra, Ultimate and TC Pro cordless sprayers use the 17P186.
Specs
| Part number | 17P187 |
| Type | Triax II (series II) replacement pump, 1 piece |
| Listed for | UltraMAX Cordless, Ultimate MX Cordless and TC PRO PLUS Cordless |
| Materials | Stainless steel and carbide, bonded with high-strength polymer |
| Sprayer maximum pressure | 2000 psi (14 MPa) |
| Sprayer maximum tip size | 0.016 in. (0.41 mm) |
| Repair manual | Graco 3A4788 |
Install Tips
- Relieve pressure: disconnect power (remove the battery), then turn the Prime Pump/Spray knob down to Prime Pump.
- Remove the enclosure cover and take the old pump out of the SmartControl enclosure.
- On these brushless models, hold the pump bearing with a wrench while you remove the static dissipation wire screw.
- Seat the new pump with its bearing in the enclosure boss and its gear meshed with the motor gear.
- Do not remove the yellow pump locking device or spin the gear before the pump is in. Graco warns it will damage the pump.
- Hold the pump in place and pull the locking device tab out.
- Refit the cover (seven screws in Graco's manual) and check the assembly as the manual shows.
FAQ
1Which sprayers does the 17P187 fit?
Graco lists it for UltraMAX Cordless, Ultimate MX Cordless and TC PRO PLUS Cordless sprayers. Your sprayer's model number is on its label. If it is not named, contact us.
2Can I use a different Triax II pump?
3How do I know the pump is worn out?
Graco's 3A4803 manual lists "pump has reached the end of its life" as a cause of poor performance. Check the tip, filter and prime knob first, since they cause similar problems.
4Is it hard to install?
Graco's manual calls for a wrench to hold the pump bearing on these brushless models. Graco sells it as a ProConnect drop-in pump, and manual 3A4788 shows each step.
5What tip size and pressure can the sprayer use?
Graco's handheld manuals give a maximum working pressure of 2000 psi and a maximum tip size of 0.016 in. A new pump does not change these limits.
6How do I make the new pump last?
Clean the sprayer after every job and fill it with Pump Armor. Graco says water left inside corrodes the pump. Store it at 32° to 113°F (0° to 45°C) and never let water freeze in it.
7Does it have a warranty?
Graco's handheld manuals give 12 months from the date of sale for defective parts, if properly installed and maintained. Contact us about a claim.
- Found a lower price elsewhere? We'll match it plus give you an extra 5% off the difference. Get the best deal guaranteed*
- This item is eligible for complimentary standard shipping to Canada and the USA. Please note that shipping is not available to select US states, and US customers are responsible for taxes upon delivery.
Regrettably, replacement parts are considered "final sale" items and are not eligible for return within the 35-day period.