PERMCO Inc. brings you a highly efficient solution with its rugged cast iron dump pump designed for light and medium-duty dump trucks. Featuring a 4.00 cu in/rev displacement this remote mount pump ensures dependable performance under demanding conditions. The pump operates on a 3-line circuit maintaining high efficiency with pressure-balanced wear plates and a built-in relief valve set at 2000 PSI offering protection to both pump and cylinder. Constructed with high-strength alloy steel gear and shaft set it can handle a maximum system temperature of up to 150F under continuous operation and never exceed 185F. Rated at 21.5 GPM flow and 2400 RPM speed it includes a manual shift mechanism a built-in load check and a neutral lockout device to prevent accidental lowering of the dump body. The inlet port measures 1-1/4 NPT with 3/4 NPT ports for pressure and return lines ensuring smooth fluid dynamics. This model replaces the Commercial G101-2-20 and is 100% factory tested to meet industry standards. For optimal performance a 25-micron return filter with a B10 rating of at least 2.2 is recommended.
Supplier Part Number: DMR40020ZL200
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Specifications
Circuit Type
3-Line
Direct Mount Rotation
--
Displacement
4
Displacement
4
Brand
Permco Inc.
Brand
Permco
Pack Size
1.00
UOM
EA
Features
Replaces Commercial G101-2-20
Mount
Remote
Mount
Remote
Pressure Rating
2500
Rated Flow
21.50
Rated Flow
21.5
Relief Setting
2000
Remote Mount Valve Location
Left Side
Alternate Part Numbers
Alternate Part NumberC1CN70, Alternate Part Number DMR-400-20-ZL-200, Alternate Part Number DSDMR-400-20-ZL-200, Alternate Part Number G101, Alternate Part Number MI-02743506, Alternate Part Number MINO-00653X00983
Speed Rating
2400 RPM
Supplier Part Number
DMR40020ZL200
Product Weight
30.00 lbs
Similar Products
Model Number
Mount
Displacement
Rated Flow
Circuit Type
Remote Mount Valve Location
Direct Mount Rotation
Relief Setting
Features
Speed Rating
Pressure Rating
Price
Action
DMR40020ZL200DM400 Series Dump Pump
Remote
4
21.5
3-Line
Left Side
--
2000
Replaces Commercial G101-2-20
2400 RPM
2500
DMD-400-20-ZL-20DM400 Series Dump Pump
Direct
4
21.5
3-Line
--
CCW
2000
Replaces Commercial G102-2-20L
2400 RPM
2500
Product Questions & Answers (1)
Question by: Brett S on Sep 18, 2025, 3:44 PM
got a Commercial G101-2-20 on my truck now. is this Permco pump a straight replacement or am i gonna be re-hydraulic connections everything
Answer by: Customer Support on Sep 19, 2025, 8:02 PM
This DM400 series unit is called out as a replacement for the Commercial G101-2-20. It is a remote mount, 3-line dump pump with a 1-1/4 NPT inlet and 3/4 NPT pressure and 3/4 NPT return ports, so the hydraulic connections is set up for that 3-line style circuit.