Graco 17J863 Gear and Yoke Kit
The Graco 17J863 Gear and Yoke Kit restores smooth drive motion and consistent spraying performance in ProX-series airless sprayers. Ideal for fixing pressure loss or drive noise.
- Fits ProX17, ProX19, ProLTS 170, and ProLTS 190
- Includes gear, yoke, and OEM hardware
- Eliminates vibration and pulsation issues
- Genuine Graco OEM replacement part
Compatibility & Quick Overview
Compatible Machines
This OEM Graco 17J863 Gear and Yoke Kit fits the following electric airless sprayers:
- • Magnum ProX17 — Stand (Model 17G177)
- • Magnum ProX17 — Cart (Model 17G178)
- • Magnum ProX19 — Stand (Model 17G179)
- • Magnum ProX19 — Cart (Model 17G180)
- • ProLTS 170 — Stand
- • ProLTS 190 — Stand & Cart
Tip: If your unit is a store-variant (e.g., LTS or similar), match by model number on your sprayer data plate for confirmation.
Key Info: OEM 17J863 Gear & Yoke drive kit for ProX-series sprayers. Restores smooth drive motion and reduces pulsation caused by worn gears/yoke.
- Direct-fit for ProX17/ProX19 & ProLTS 170/190
- Graco OEM quality & tolerances
- Best installed with fresh pump rod lube
Product Overview
The Graco 17J863 Gear and Yoke Kit is the core drive assembly that transfers motor rotation to the pump rod on select Magnum/ProLTS sprayers. Replacing a worn gear/yoke restores prime performance, reduces vibration, and helps maintain consistent pressure and spray pattern.
What’s in the Box
| Component | Function | Notes |
|---|---|---|
| Drive Gear | Transfers motor torque to the yoke/rod mechanism. | OEM tolerance & finish |
| Yoke Assembly | Converts rotary motion to linear motion for the pump rod. | Reduced play/backlash |
| Associated Hardware | Retainers/fasteners required for proper fitment. | As supplied by Graco |
When Should You Replace It?
- Noticeable pulsation or inconsistent pressure despite a healthy pump.
- Grinding/clunking noises from the drive area.
- Visible wear on gear teeth or excessive play in the yoke.
Install Tips (Pro Guidance)
- Disconnect power and depressurize the sprayer before service.
- Inspect the pump rod, packings, and piston for wear; replace if needed for best results.
- Use proper lubrication on contact points during assembly.
- Tighten fasteners to Graco specifications; verify smooth manual stroke before powering on.
Cross-Reference
Also described in some catalogs as Kit, Gear & Yoke (700) for ProX-series drive systems.
