Graco 15C988 Gland Packing
$6.00
Available to Order
The Graco 15C988 Gland Packing provides a reliable seal at the pump throat, preventing leaks and maintaining pump performance in Graco displacement pumps.
- Fits Graco Ultra Max II 795, Mark V, and select fluid section pumps
- OEM quality for long-lasting performance
- Easy installation with standard V-packing rings
- Ensures consistent pressure and leak-free operation
Quantity
Genuine OEM Part
Fast Shipping (Order by 1 PM CST)
Easy Returns
Graco 15C988 Gland Packing – Compatibility & Technical Details
The Graco 15C988 is a female throat gland packing used in Graco displacement pumps. It seals the piston rod at the pump cylinder throat, preventing fluid leaks and ensuring long-term hydraulic integrity.
Compatible Machines
- Graco Ultra Max II 795 (Standard / Hi‑Boy) – found in its pump parts list.
- Graco Mark V Pumps – documented in parts diagrams.
- Graco displacement pumps using fluid sections 16X414 / 16X418.
- Graco LineLazer V 3900 / 5900 series.
Specifications
| Part Number | 15C988 |
|---|---|
| Type | Gland, Female, Throat |
| Function | Seals around the piston rod at the throat to prevent leaks |
| Material | Metal body (to hold V‑packing rings) |
| Included In | OEM Packing Repair Kit 248212 |
| O‑Ring Compatibility | Uses PTFE O‑Ring (part 107079) per manual diagrams |
| Backup Washer | Uses 15C997 washer (per Graco schematic) |
| Maintenance Interval | Inspect whenever pump is rebuilt or when leaks are evident |
Key Features
- High‑quality sealing: Provides a durable seal at the pump throat to minimize fluid loss.
- OEM‑grade component: Part of Graco’s original packing design for displacement pumps.
- Compatible with standard V‑packing stacks: Built to house leather or UHMWPE rings.
- Long-term reliability: Helps uphold pump performance under repeated cycles.
Installation Notes
- During repacking, stack the 15C988 gland with the correct sequence of V‑packing rings (leather and/or UHMWPE) following Graco’s service manual.
- Lubricate the packing lightly before inserting the gland to ease assembly and prevent damage.
- Use the correct torque when tightening the packing nut to avoid distorting the gland or damaging the packing stack.
- Make sure to install the PTFE O‑ring (107079) and backup washer (15C997) if required by your assembly.
Frequently Asked Questions
If this gland wears or cracks, fluid can leak around the piston rod, reducing system pressure, causing inefficient operation, and possibly damaging other packing components.
It is best to use the genuine Graco 15C988. Using non-OEM parts may result in inadequate sealing, faster wear, or potential compatibility issues with the O‑ring and backup washer.
You should inspect the gland each time you repack your pump or if you observe leaks, dropping pressure, or worn packing material. If it's visibly damaged or distorted, replace it.
Not particularly. If you follow Graco’s pump‑rebuild instructions—remove the nut, remove old packing, stack the new V‑packing and gland, then torque properly—the process is straightforward.
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