| Pump Type | Heavy Duty,Cast Iron,External Gear |
| Displacement Range | Min 44.3cc/rev, Max 147.5cc/rev |
| Pressure Rating | Min 207 bar, Max 241 bar |
| Speed Range | Max 2400 RPM |
| Material | Cast Iron |
| Mounting Type | SAE standard flanges |
| Rotation | Clockwise,Counter Clockwise,Double |
| Key Features | High efficiency |
| OEM Manufactured Compatibility | Parker |
| MOQ | 10 PCS |
Our PGP365 and PGM365 series offer a high-efficiency 100% drop-in replacement for original Parker cast iron gear pumps and motors, engineered for heavy-duty hydraulic systems. Designed for maximum durability, these units support operating pressures up to 3,500 PSI (241 bar) and displacements ranging from 44.3 to 147.5 cm³/rev (2.70 to 9.00 in3/rev), with speeds reaching 3,000 RPM. This OEM-interchangeable series features a rugged three-piece cast iron construction, ensuring peak volumetric efficiency across SAE B/C 2-bolt or 4-bolt mounting configurations. Whether you need a single, tandem, or triple section setup with splined or keyed shafts, our aftermarket PGP/PGM365 solutions provide a reliable, cost-effective alternative that guarantees seamless interoperability and reduced machine downtime.
PGP365 PGM350 Key Performance & Technical Specification:
Max Pressure: Up to 3,500 PSI (241 bar) continuous.
Displacement: 44.3 to 147.5 cm³/rev (2.70 to 9.00 in³/rev).
Max Speed: Up to 2,400 RPM (Pumps) / 3,000 RPM (Motors).
Construction: Heavy-duty Three-Piece Cast Iron for maximum efficiency.
Compatibility: Fully interchangeable with all standard Parker 365 series configurations.
| PGP365 PGM365 Frame Size | 07 | 10 | 12 | 15 | 17 | 20 | 22 | 25 | |
| Displacement | cm3/rev | 44.3 | 59.0 | 73.8 | 88.5 | 103.3 | 118 | 132.8 | 147.5 |
| in3/rev | 2.7 | 3.6 | 4.5 | 5.4 | 6.3 | 7.2 | 8.10 | 9 | |
| Max Continuous pressure | bar | 241 | 241 | 241 | 241 | 241 | 241 | 224 | 207 |
| psi | 3500 | 3500 | 3500 | 3500 | 3500 | 3500 | 3250 | 3000 | |
| Max Speed | RPM | 2400 | 2400 | 2400 | 2400 | 2400 | 2400 | 2400 | 2400 |
| Approximate Weight | Lbs. | 53.5 | 56 | 58.5 | 61 | 63.5 | 66 | 68.5 | 71 |
| kg | 24.3 | 25.4 | 26.5 | 27.7 | 28.8 | 30 | 31.1 | 32.2 | |
PGP365 PGM350 Dimensions:

PGP365 PGM365 Gear Pump&Motor Performance Data:


| Customization Item | Available Options | Description |
| Unit Type | Single, Tandem, Multiple, Thru-Drive | Available as single units or multiple sections (tandem) with common or separate inlets. |
| Displacement (Gear Width) | 44.3 to 147.5 cm3/rev(2.70 to 9.00 in3/rev) | Determined by gear width: 0.75″, 1.00″, 1.25″, 1.50″, 1.75″, 2.00″, 2.25″, 2.50″. |
| Rotation | CW (Clockwise), CCW (Counter-Clockwise), Bi-rotational | Direction of rotation viewed from the drive shaft end. |
| Shaft Type | SAE Splined, Keyed, or Industry Specific | Common options include SAE “C” Spline/Keyed and SAE “B” or “BB” Spline/Keyed. |
| Mounting Flange | SAE 2-Bolt or 4-Bolt | SAE B 4-bolt/SAE B 2-bolt/SAE C 4-bolt/SAE C 2-bolt |
| Porting Type | SAE Split Flange, OD Tube (ORB), BSPP, Metric Split Flange | Available in various sizes (e.g., 1″, 1-1/4″, 1-1/2″, 2″) for both side and rear locations. |
| Porting Location | Side Ported, Rear Ported | Standard gear housings are typically side-ported; port end covers can be rear-ported. |
| Shaft Seals | NBR (Standard), FPM (Viton/FKM) | Standard NBR for mineral oils; FPM for high-temperature or fire-resistant fluids. |
| Bearing Options | With or Without Outboard Bearing | Outboard bearings (O.B. bearing) are used for applications with radial shaft loads. |
| Control / Valve Options | Relief, Load Sense, Priority, Unloading | Extensive valve options integrated into the covers for specific hydraulic circuit needs |
| Fluid Compatibility | Mineral Oil,Water-Glycol(HFC),Phosphate Esters(HFD) | Configurable for fire-resistant fluids with appropriate seal and clearance options. |
Don’t let a broken pump halt your project. Send us your original Parker part number (e.g., PGP365A…) or a photo of the nameplate, and our technical team will provide a precise replacement match and pricing within 24 hours.
We understand that machine downtime is costly. That’s why our PGP365/PGM365 replacements are built to provide the same reliability as the original, backed by a comprehensive protection plan.
Every unit undergoes rigorous 100% dynamic testing before leaving our factory. We simulate real-world high-pressure conditions to ensure:
True Drop-in Replacement: Precision-machined to exact OEM tolerances—guaranteed to fit your existing hydraulic lines and mounts perfectly.
Full Power Output: Every pump and motor meets or exceeds original flow and pressure specifications.
Premium Materials: We use high-tensile strength cast iron and specialized heat-treated steel for gears and shafts to prevent premature wear.
Extended Life Cycle: Optimized seal kits (Buna-N or Viton) and high-load bearings ensure stable operation even in harsh construction and mining environments.
We stand behind our products with a 1-year limited warranty. If a manufacturing defect occurs within the first 12 months, we provide:
Rapid Replacement: Fast-track shipping for replacement units to get your machinery back to work immediately.
Technical Troubleshooting: Direct access to our hydraulic engineers for installation guidance and system diagnosis.
Stock Availability: We maintain a large inventory of 365 series components to ensure 24–72 hour dispatch.
Traceability: Each unit is laser-engraved with a unique serial number for lifetime tracking and support.
Our PGP365 and PGM365 series are engineered as direct “drop-in” replacements. They feature identical mounting flanges (SAE B/C), shaft dimensions (Splined/Keyed), and porting locations. You can replace an original Parker unit without any hydraulic line modifications or machine downtime.
The PGP365 gear pump supports a continuous operating pressure of up to 3,500 PSI (241 bar). The maximum rated speed is 2,400 RPM for pumps and up to 3,000 RPM for motors, depending on the specific gear width and displacement selected.
We offer a full range of displacements from 44.3 to 147.5 cm³/rev (2.70 to 9.00 in3/rev). This is achieved through eight standard gear widths ranging from 0.75″ to 2.50″, allowing us to match the exact flow requirements of your hydraulic system.
Absolutely. We can assemble single, tandem (double), or triple section units. We also provide options for common or separate inlets and various integrated valve covers, including relief valves and priority flow dividers, to meet complex circuit needs.
Our standard units come with Buna-N (NBR) seals for mineral-based hydraulic oils. For high-temperature environments or fire-resistant fluids, we offer Viton (FKM) seals as a premium option to ensure long-term leak prevention and durability.
Selection depends on pressure rating, displacement, speed range, application requirements, and installation dimensions. Contact our engineers for technical support.