Graco 17H878 MaxLife Vortex Piston Rod
5/5
(1 review)
$928.80
$1,290.00
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- Genuine OEM Part – Built for durability and precision.
- Features advanced MaxLife Vortex technology for extended wear life.
- Designed for GMax II 7900 series sprayers.
- Ensures consistent spray performance and reduced maintenance downtime.
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Genuine OEM Part
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Graco 17H878 MaxLife Vortex Piston Rod - What It Is & What It Fits
Compatible Machines
- • Graco GMax II 7900 (Standard)
- • Graco GMax II 7900 ProContractor
Tip: Always confirm your exact sprayer model & pump assembly in the parts manual before ordering.
What is the Graco 17H878 MaxLife Vortex Piston Rod?
The 17H878 is a genuine Graco pump piston rod engineered with MaxLife Vortex technology. The Vortex design rotates the rod during operation to distribute wear evenly, extending service life and helping maintain consistent spray performance. It’s the OEM replacement rod used with the Endurance / MaxLife Vortex pump architecture found on high-output Graco gas sprayers like the GMax II 7900 series.
- Even wear from the Vortex rotating action for longer life between repacks
- Maintains steady pressure and a uniform fan pattern
- OEM fit and finish for reliable sealing and durability
Key Specs & Details
| Part Number | 17H878 |
|---|---|
| Technology | MaxLife Vortex rotating piston rod |
| Pump Assembly Association | Used as the replacement rod for Graco pump assembly 17H825 (GMax II 7900 family) |
| Category | OEM pump piston rod for large gas airless sprayers |
| Compatibility Notes | Designed for GMax II 7900 series. Verify pump code & revision in your parts list before purchase. |
| What’s Included | Piston rod only (no seals/packings). Pair with the correct cylinder & packing kit for a full rebuild. |
Fitment & Replacement Guidance
- Confirm your sprayer model (e.g., GMax II 7900 Standard or ProContractor).
- Check your pump assembly number (commonly 17H825 on 7900 series) in the parts manual.
- Inspect cylinder & packings; replace as a set to maximize MaxLife Vortex service life.
If your pump has heavy wear or scoring, consider a full pump kit instead of rod-only replacement.
Frequently Asked Questions
Match your sprayer model (e.g., GMax II 7900) and pump assembly (e.g., 17H825) in the official parts manual. If your pump assembly matches, the rod is correct.
The Vortex rod slowly rotates during operation to distribute contact and reduce localized wear, increasing time between repacks and helping maintain a consistent fan pattern.
It’s best practice to inspect and often replace the cylinder and packing kit at the same time. Mixing new and worn parts can shorten service life.
Yes, 17H878 is a genuine Graco OEM piston rod designed for the Endurance / MaxLife Vortex pump used on GMax II 7900 series sprayers.
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Laura J.
The 17H878 MaxLife Vortex Piston Rod (Part #17H878) - installation took less than ten minutes. This is now our go-to for replacement parts.
