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DMD/DM640 Series Dump Pumps For Medium & Heavy Duty Dump Trucks, Up To 2500 PSI, Up To 2400 RPM
Description & Features
| Features | Rugged cast iron, roller bearing pump construction. High strength alloy steel gear and shaft set. Pressure balanced wear plates maintain high pump efficiency throughout all operating ranges. 100% factory tested. 1-1/4 NPT inlet port, 3/4 NPT pressure port, 3/4 NPT return port (for 3rd line). Built in direct acting relief valve set at factory provides protection to both the pump and to the cylinder. Manual Shift standard. Built-in load check. Neutral Lockout safety cap for use with pull-out cable. 2 extra long studs for easy installation of pump support bracket on Direct Mount models. |
| Maximum System Temperature | Under normal conditions of continuous operation, not to exceed 150°F. Never to exceed 185°F. |
| Note | Ratings based on using anti wear hydraulic fluid. For information on use with other fluids, contact us for assistance. |
| Pressure Rating | 2500 PSI. |
| Rated Speed | 2400 RPM. |
| Recommended Filtration | 25 micron return filter with B10 rating of at least 2.2. |
Products
| Model Number | Mounting | Displacement | Rated Flow | Circuit Type | Remote Mount Valve Location | Direct Mount Rotation | Relief Setting | Features | Pressure Rating | Speed Rating | Price | Action |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
DMD-25-Z-L-MS-20 DMD/DM640 Series Dump Pump |
Direct |
6.4 |
46 |
3-Line |
-- |
CCW |
2000 |
Replaces Commercial C102D251 |
2500 |
2400 RPM |
|
Product Questions & Answers (1)
Question by: Bonnie T on Jan 15, 2026, 10:47 AM
What kinda hydraulic fluid should I be runnin' in this pump?
Answer by: Customer Support on Jan 16, 2026, 3:36 PM
Ratings are based on using anti-wear hydraulic fluid, so that's generally recommended. If you're thinkin' about using somethin' different, it's best to get in touch so we can help you figure it out.