Product Overview – 17K475 Pump Repair Kit
The Graco 17K475 Pump Repair Kit is a genuine OEM pump packing/repair kit designed to restore sealing performance and reduce leaks in the pump fluid section. It services displacement pump model 16Y599 used on select Graco texture sprayers.
Compatible Machines
This kit fits sprayers that use the 16Y599 displacement pump. Confirm the pump tag on your machine before ordering.
- Graco TexSpray Mark V IronMan (Hi-Boy & Lo-Boy variants, where equipped with pump 16Y599)
Tip: If your Mark V configuration lists a different pump number, refer to that pump’s specific kit.
Key Specs & Details
| OEM Part | 17K475 (Pump Packing/Repair Kit) |
| Compatible Pump | 16Y599 Displacement Pump (Series as equipped on select TexSpray Mark V IronMan) |
| Function | Replaces worn packings/seals in the pump fluid section to restore pressure and reduce leakage. |
| Use Case | Preventive maintenance or when experiencing pressure loss, leakage, or inconsistent spray pattern. |
| Authenticity | Genuine Graco OEM components for proper fit and longevity. |
What’s Included*
- Upper & lower packings/seals
- Backup rings & wear components
- O-rings and related sealing hardware
Installation & Maintenance Notes
- Depressurize and flush the sprayer per Graco safety procedures before service.
- Inspect rod/seat for wear; replace if pitted to ensure new packings seat properly.
- Lubricate packings during assembly and tighten to specification to avoid premature wear.
- After rebuild, pressure-test with compatible fluid to verify sealing performance.
Frequently Asked Questions
Check the pump tag on your sprayer. If it lists 16Y599, the Graco 17K475 Pump Repair Kit is the correct packing kit. If your pump number is different, search by that exact pump number to find the proper kit.
Common signs include fluid leaking from the pump throat, difficulty maintaining pressure, pulsation, or an inconsistent spray pattern. Repacking with 17K475 typically restores sealing and performance.
Basic hand tools are usually sufficient. Follow your pump’s service manual for torque values and assembly order. Proper lubrication and cleanliness during assembly are essential for packings to seat correctly.
Yes. Graco 17K475 is a genuine OEM repair kit engineered to match factory tolerances for the 16Y599 pump.
After installing 17K475, flush with compatible fluid and gradually pressurize to check for leaks. Re-check fasteners after initial operation and monitor for proper pressure hold.
