Graco 17H877 Piston Rod

Part: Graco 17H877 Piston Rod – Genuine OEM replacement.
Function: Maintains spray pressure and pump efficiency in airless sprayers.
Compatible With: UltraMax II 1095 / 1595 and GMax II 5900 ProContractor models.
Highlight: High-strength, precision-machined design ensures consistent performance and long service life.

Retail Price: $847

You save: $237.16 (28.00%)

Our Price: $609.84

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Description

Overview & Compatibility - Graco 17H877 Piston Rod

Compatible Machines

Ultra Max II 1095 ProContractor (2019 & newer)
Ultra Max II 1595 ProContractor (2019 & newer)
GMAX II 5900 ProContractor (2019 & newer)
TexSpray Mark V ProContractor (on units equipped with Pump 17H824)

What is the Graco 17H877 Piston Rod?

The 17H877 is the OEM piston rod used inside Graco’s Endurance Vortex pump assembly (Pump 17H824). It restores smooth pressure delivery, reduces pulsation, and maintains consistent spray patterns on high-output sprayers listed above.

Quick Facts

OEM Part Number	17H877
UPC / GTIN	755652851523
Works With Pump	17H824 Endurance Vortex MaxLife Pump (factory fit on models above)
System Rating (pump)	Up to 3300 psi (per 17H824 pump specification)
Typical Use	Professional airless spraying of paints, primers, elastomerics & coatings
Related Service Kit	QuikPak Pump Repair Kit 17H842 (for 1095/1595 & GMAX II 5900 ProContractor)

Why choose the genuine rod?

• Designed for the Endurance Vortex rotating-rod system for even wear and long life
• Maintains pressure stability for consistent finish quality
• Direct OEM fit in Pump 17H824—no modification required

Confirming Fitment

Check your sprayer’s model/series and pump tag. If your unit is an Ultra Max II 1095 or 1595 ProContractor, or a GMAX II 5900 ProContractor (2019+), it should be equipped with Pump 17H824. Some TexSpray Mark V ProContractor units also use 17H824 to verify before ordering.

Installation Tips

Relieve pressure and follow lock-out procedures before service
Inspect piston valve, packings, and cylinder and replace worn items with the correct kit (17H842 for the models above)
Lubricate per Graco guidelines and prime on water/solvent to verify smooth operation

Frequently Asked Questions

No. 17H877 is the rod only. For packings and valve components, use the appropriate QuikPak kit such as 17H842 for the listed sprayers.

Ultra Max II 1095 & 1595 ProContractor (2019+), GMAX II 5900 ProContractor (2019+), and selected TexSpray Mark V ProContractor units that are equipped with Pump 17H824.

The rod operates within the pump’s rating. The corresponding pump 17H824 is rated up to 3300 psi. Always follow your sprayer’s manual limits.

Check the serial label on your sprayer and the pump tag. ProContractor models from 2019 onward typically ship with the Vortex pump 17H824. If unsure, match the pump number before ordering.

Related OEM Parts

Part	Description	Typical Use
17H824	Endurance Vortex MaxLife Pump Assembly	Complete pump that uses the 17H877 rod
17H842	QuikPak Pump Repair Kit	Packings/valves service kit for the same sprayers