Graco 16W509 Piston Seat Repair Kit
$133.50
$149.00
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The Graco 16W509 Piston Seat Repair Kit restores proper sealing in ToughTek piston pumps, improving performance and reducing internal leakage.
- Replaces worn piston seat & seals
- Durable wear-resistant components
- Ensures smooth pump flow & pressure
- Fits selected Graco ToughTek models
Quantity
Genuine OEM Part
Fast Shipping (Order by 1 PM CST)
Easy Returns
Graco 16W509 Piston Seat Repair Kit – Details & Compatibility
Compatible Machines
This Graco 16W509 Piston Seat Repair Kit is used in several Graco ToughTek piston-pump systems. Below are the machines that accept this part:
- ToughTek M680a
- ToughTek M680a-CS
- ToughTek S340e
- ToughTek F340e
- ToughTek F800e
Product Overview
The 16W509 Piston Seat Repair Kit replaces the piston seat and sealing components inside Graco ToughTek piston-pump assemblies. It restores proper sealing of the check-valve area, improving flow stability and reducing leakage caused by worn or damaged internal seats.
Key Features
- Manufactured with hardened materials for extended service life.
- Includes piston seat and essential sealing components.
- Ensures proper pump check-valve sealing and reduces internal bypass.
- Suitable for abrasive materials such as mortars, epoxies and specialty coatings.
Technical Information
| Part Number | 16W509 |
|---|---|
| Part Type | Piston Seat Repair Kit |
| Material | Hardened wear-resistant construction |
| Used In | Piston-pump check valve assembly |
Frequently Asked Questions
It replaces the piston seat and sealing components responsible for check-valve sealing inside the pump, helping restore proper fluid direction and pressure.
Install the kit when the pump shows signs of internal bypass, pressure loss, inconsistent output or leakage caused by worn seating surfaces.
No. It is only compatible with specific Graco ToughTek piston-pump models listed in the compatibility section above.
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