Graco 164925 Piston Rod
$750.00
In Stock
Graco 164925 Piston Rod is a genuine air-motor component that restores smooth cycling and sealing. Use it when the rod is worn, scored, or bent.
Quick facts to confirm fit and ensure a proper repair:
- Fits air-motor assembly: Model 205-647 (Series L)
- Section: Air motor (not fluid section)
- Catalog name: Rod, Piston (PN 164925)
- Replace during packing service if surface shows wear
- Verify against your unit’s parts diagram before ordering
Quantity
Genuine OEM Part
Fast Shipping (Order by 1 PM CST)
Easy Returns
Overview & Compatibility for 164925
The Graco 164925 Piston Rod (listed as “Rod, Piston”) is a genuine replacement component used inside the air-motor section of select industrial Graco pumps. It transfers motion within the air motor and should be replaced if scored, bent, or excessively worn.
Compatible Machines / Assemblies
- Graco Air Motor Model 205-647 (Series L) — in-line mounting, medium-pressure oil pump
- Industrial pump assemblies that use the above air motor (often found in President-series air-motor systems) — confirm via your unit’s parts diagram
Key Details
| Attribute | Value |
|---|---|
| Part Number | 164925 |
| Part Name (Catalog) | Rod, Piston |
| Assembly Location | Air-motor section of pump |
| Known Compatible Assembly | Air Motor 205-647 (Series L) |
| Typical Use Case | Replacement when rod is worn/scored to restore sealing and smooth stroke |
Installer Notes
- Inspect for scoring or bending; replace if surface is damaged to prevent premature packing wear.
- Clean components and use correct lubrication during reassembly.
- Verify your pump’s air-motor model; if it matches 205-647 (Series L) or an assembly that specifies 164925, this part applies.
Frequently Asked Questions
Check your pump’s air-motor model in the parts manual or data plate. If the air motor is 205-647 (Series L) or your schematic lists 164925 for the piston-rod line item, it’s the correct replacement.
Visible scoring, uneven wear, or bending; recurring packing leaks; rough stroke or inconsistent cycling from the air-motor assembly.
No. This part is specified for the air-motor section. Fluid-section rods and rams differ by pump ratio and kit; always match the exact assembly from your manual.
Keep the rod and sealing surfaces clean, replace worn packings while the motor is open, and follow the torque and sequence in your unit’s service manual.
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