Graco 287877 Piston Valve Repair Kit
5/5
(1 review)
$139.56
$159.50
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The Graco 287877 Piston Valve Repair Kit restores smooth pumping and sealing performance in your airless sprayer’s fluid section. Ideal for professional sprayer maintenance and longevity.
- OEM Part #287877 – Genuine Graco replacement
- Fits Ultra Max II 695/795/1095 & GMAX 3900 series
- Replaces older part 239932
- Located in the fluid section above the ball cage
Quantity
Genuine OEM Part
Fast Shipping (Order by 1 PM CST)
Easy Returns
Overview & Compatibility Summary for Graco 287877 Piston Valve
Compatible Machines
- Ultra Max II 695 Series
- Ultimate MX II 695 Series
- Ultra Max II 795 Series
- Ultimate MX II 795 Series
- Ultra Max 795 Series (older)
- Ultimate MX 795 Series (older)
- Ultra Max II 1095 Series
- Ultimate MX 1095 Series
- GMAX 3900 Series
- GMAX II 3900 Series (Gas)
- LineLazer II 3900 (1-Gun, p/n 233726)
- LineLazer II 3900 (2-Gun, p/n 233727)
- Mark IV (TexSpray, p/n 249636)
What is the 287877 Piston Valve?
The Graco 287877 is a Piston Valve (Repair Kit) for the pump fluid section. It sits on/above the ball cage with the displacement rod, nut, and packings, restoring proper sealing and flow when the valve seat is worn.
Key Details & Cross-Refs
| Attribute | Value |
|---|---|
| OEM Part | 287877 (Piston Valve / Repair Kit) |
| Supersedes / Replaces | 239932 (older piston valve number) |
| Typical Location | Fluid section (on top of ball cage / packing nut area) |
| Common Series | Ultra Max II 695/795/1095, Ultra Max 795, GMAX 3900 (incl. GMAX II 3900), select LineLazer II 3900, Mark IV |
| Aftermarket Cross | Bedford 58-3178 (replacement for 287-877) |
Fitment Notes
- Some 695-series units vary by generation; verify by exact model and serial.
- Use genuine parts for longevity; replace if valve/seat shows wear, nicks, or poor sealing.
- Follow the official pressure-relief and pump service procedure before disassembly.
Frequently Asked Questions
Yes—multiple sources list 287877 as the current piston valve that replaces 239932.
In the fluid section, typically on/above the ball cage and around the packing nut area, working with the displacement rod and packings.
Most 695 models use it, but not all. Check your exact model and serial number to confirm compatibility before purchase.
Yes—Bedford Precision lists 58-3178 as a replacement for Graco 287877. Use OEM when possible for best longevity.
Always perform the full pressure-relief procedure and follow the pump service steps from the Graco manual. Inspect the sleeve and rod for wear or scratches before reassembly.
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Benjamin N.
Ordered this for a job and for the 287877 Piston Valve Repair Kit (Part #287877) and it matched the original spec exactly, down to the part number. Customer support was helpful when I had questions about fit.
