Is Your Hydraulic Pump Ready for Replacement? Here’s How to Identify the Right Model
Here’s a stat that might surprise you: Over 30% of hydraulic pump failures are due to incorrect replacements or improper parts. Don't let that happen to you. Knowing your pump’s model is the key to avoiding downtime and costly errors. It’s like your pump’s unique fingerprint, revealing its specs, series, and capabilities at a glance.
But what if that tag is unreadable—or missing entirely? Let’s break it down.
Where to Find Your Pump’s Model Number
Most hydraulic pumps come with a nameplate—usually a metal tag or sticker—affixed to the pump body. This nameplate isn’t just decoration; it’s your guide to everything about the pump. It includes:
- Model and serial numbers
- Production date
- Pressure ratings, flow capacities, and other specifications
This data is critical when it’s time to replace the pump or order parts.
What If the Tag Is Missing or Faded?
If wear and tear have taken their toll on the nameplate, don’t worry. You’re not out of options. The best course of action is to contact a hydraulic expert—someone who knows pumps inside and out. Send them detailed photos of your pump from multiple angles. This information helps technicians identify the model and suggest the right parts.
How to Decode the Model Number
Understanding your pump’s model number can feel like solving a puzzle, but it’s simpler than it looks. Let’s use Vickers/Eaton as an example:
- First Letter: Type of component (e.g., “P” for Pump, “M” for Motor)
- Second Letter: Displacement type (“V” for Variable, “F” for Fixed)
- Third Letter: Series designation
For instance, a model number like PVQ40 tells us it’s a Vickers/Eaton variable displacement piston pump from the Quiet Series with a 40 cc/revolution displacement.
But beware—some series have unique quirks, and professional expertise might be necessary to interpret these details correctly.
Need a Replacement? Here’s What You’ll Need
When ordering parts or replacements:
- Always have the full model number (or the manufacturer’s manual).
- If the model number isn’t legible, send the pump to an aftermarket parts manufacturer. They can identify the best components for your system.
- Confirm specs like drain port size, flange details, and control types—these vary by series.
Why Choose PUSH Hydraulics?
We’ve partnered with leading manufacturers to offer high-quality OEM-equivalent replacements and faster lead times. Whether you’re replacing a discontinued pump or just need reliable parts, PUSH Hydraulics has you covered.