Replacement PGP330 Gear Pump & PGM330 Gear Motor Hydraulic Pump Assembly

Pump Type	Heavy-duty cast iron,external gear
Displacement Range	Min 16.1cc/rev, Max 64.6cc/rev
Pressure Rating	Min 20.7Mpa, Max 24.1Mpa
Speed Range	Min 400 RPM, Max 3000 RPM
Material	Cast Iron
Mounting Type	SAE standard flanges,ZF,others
Rotation	Clockwise,Counter Clockwise,Bi-Rotational
Key Features	High efficiency
OEM Manufactured Compatibility	Parker
MOQ	10 PCS

Replacement Parker PGP330 hydraulic gear pump & PGM330 gear motor | Fixed displacement, three‑piece cast iron construction, max continuous pressure 241 bar (3,500 psi), displacement 16.1–64.6 cc/rev, speed up to 3,000 rpm. Built with pressure‑balanced thrust plates and low‑friction bushings for high volumetric efficiency (up to 98%) and heavy‑duty durability. Direct interchange with Parker 330 series, ideal for construction, forestry, oil & gas, and agricultural mobile equipment.

PGP330 Gear Pump Specification:

PGP330 Frame Size		05	07	10	12	15	17	20
Displacement	cm³/rev	16.1	24.2	32.3	40.4	48.4	56.5	64.6
Displacement	in³/rev	0.99	1.48	1.97	2.46	2.96	3.45	3.94
Max Continuous Pressure	bar	241	241	241	241	241	224	207
Max Continuous Pressure	psi	3500	3500	3500	3500	3500	3250	3000
Max Speed	RPM	3000	3000	3000	3000	3000	3000	3000
Approximate Weight	Lbs.	33.6	34.8	36	37.3	38.5	40	41.3
Approximate Weight	kg	15.2	15.8	16.3	16.9	17.5	18.1	18.7

PGP330 Gear Motor Specification:

PGM330 Frame Size		05	07	10	12	15	17	20
Displacement	cm³/rev	16.1	24.2	32.3	40.4	48.4	56.5	64.6
Displacement	in³/rev	0.99	1.48	1.97	2.46	2.96	3.45	3.94
Max Continuous Pressure	bar	241	241	241	241	241	224	207
Max Continuous Pressure	psi	3500	3500	3500	3500	3500	3250	3000
Max Speed	RPM	3000	3000	3000	3000	3000	3000	3000
Approximate Weight	Lbs.	33.6	34.8	36	37.3	38.5	40	41.3
Approximate Weight	kg	15.2	15.8	16.3	16.9	17.5	18.1	18.7

PGP/PGM330 Gear Pump&Motor Dimensions:

PGP330 Gear Pump Performance Data:

Speed RPM	Output Flow	Gear Widths
Speed RPM	Input Power	1/2″	3/4″	1″	1-1/4″	1-1/2″	1-3/4″	2″
900	GPM	3.2	5.1	7	8.8	10.6	12.4	14.3
	LPM	12	19	26	33	40	47	54
	HP	9	13	17	21	26	28	29
	kW	6	10	13	16	19	21	22
1200	GPM	4.5	7	9.5	12	14.5	16.9	19.4
	LPM	17	26	36	45	55	64	73
	HP	11	17	23	28	34	37	39
	kW	8	13	17	21	25	28	29
1500	GPM	5.8	8.9	12.1	15.2	18.3	21.4	24.5
	LPM	22	34	46	57	69	81	93
	HP	14	21	28	35	43	46	49
	kW	11	16	21	26	32	34	36
1800	GPM	7.1	10.8	14.7	18.4	22.1	25.9	29.6
	LPM	27	41	55	70	84	98	112
	HP	17	26	34	43	51	55	58
	kW	13	19	25	32	38	41	44
2100	GPM	8.4	12.7	17.2	21.6	26	30.3	34.7
	LPM	32	48	65	82	98	115	131
	HP	20	30	40	50	60	65	68
	kW	15	22	30	37	44	48	51
2400	GPM	9.6	14.7	19.8	24.8	29.8	34.8	39.8
	LPM	36	55	75	94	113	132	151
	HP	23	34	45	57	68	74	78
	kW	17	25	34	42	51	55	58
3000	GPM	12.2	18.5	24.9	31.2	37.5	43.8	50.1
	LPM	46	70	94	118	142	166	190
	HP	28	43	57	71	85	92	97
	kW	21	32	42	53	64	69	73

PGM330 Gear Motor Performance Data:

Speed RPM	Output Torque	Gear Widths
		1″ 3500 psi		1-1/4″ 3500 psi		1-1/2″ 3500 psi		1-3/4″ 3250 psi		2″ 3000 psi
		A	B	A	B	A	B	A	B	A	B
900	in/lbs	10.1	1010	12.3	1270	14.5	1530	16.7	1665	19	1770
900	Nm	38	114.1	47	143.5	55	172.9	63	188.1	72	200
1200	in/lbs	12.8	1005	15.7	1265	18.6	1525	21.4	1660	24.3	1760
1200	Nm	49	113.6	59	142.9	70	172.3	81	187.6	92	198.9
1500	in/lbs	15.6	1000	19.1	1255	22.6	1515	26.1	1650	29.6	1750
1500	Nm	59	113	72	141.8	85	171.2	99	186.4	112	197.7
1800	in/lbs	18.4	995	22.5	1250	26.6	1505	30.8	1640	34.9	1740
1800	Nm	69	112.4	85	141.2	101	170	116	185.3	132	196.6
2100	in/lbs	21.1	990	25.9	1240	30.7	1495	35.4	1625	40.2	1720
2100	Nm	80	111.9	98	140.1	116	168.9	134	183.6	152	194.3
2400	in/lbs	23.9	985	29.3	1235	34.7	1480	40.1	1605	45.5	1695
2400	Nm	90	111.3	111	139.5	131	167.2	152	181.3	172	191.5
3000	in/lbs	29.2	980	35.9	1230	42.6	1475	49.3	1595	56	1685
3000	Nm	110	110.7	136	139	161	166.7	186	180.2	212	190.4

A:Input Flow GPM/LPM; B:Output Torque IN/LBS/Nm

PGP/PGM330 Gear Pump&Motor Performance Charts:

Parker PGP330 hydraulic gear pumps and PGM330 gear motors deliver heavy-duty cast-iron performance for construction, agriculture, and industrial machinery. Fully customizable for replacement or new builds, they offer reliable high-pressure operation, flexible configurations, and OEM-compatible fit to keep your equipment running at peak efficiency.

Customization Item	Available Options	Description
Unit Type	PGP (Pump) / PGM (Motor)	Select hydraulic pump or hydraulic motor
Displacement	16.1 – 64.6 cm³/rev	Controls oil flow rate for heavy machinery
Shaft Style	Keyed / Splined (7/8″ 13T, 1″ 15T)	Connection to match your engine or equipment
Rotation	Clockwise / Counterclockwise / Bi‑Rotational	Turning direction for your installation
Mounting	SAE B 2‑bolt / 4‑bolt; SAE C 4‑bolt	Standard heavy‑duty mounting patterns
Port Position & Type	Side / Rear ports	Inlet/outlet positions and thread sizes
Port Position & Type	SAE / BSPP / Metric / NPT	Inlet/outlet positions and thread sizes
Seal Material	Standard NBR / High‑Temp FKM	For normal or high‑temperature operation
Configuration	Single / Tandem / Multiple (up to 6 sections)	Single unit or multi‑pump on one shaft
Max Pressure	Continuous: 241 bar (3500 psi); Peak: 275 bar (4000 psi)	Heavy‑duty hydraulic system rating
Integrated Valves	Relief / Load Sense / Priority / Unloading	Onboard controls for system protection
Drain Port	With drain / Without drain	For internal pressure relief in high‑load use

Need a direct replacement or custom‑built unit for your heavy machinery? Send us your displacement, shaft type, port location, rotation, and mounting preferences. Our team will provide a fast, accurate quote and lead time. We guarantee OEM‑compatible quality, perfect fit, and reliable performance to minimize downtime. Contact us today for your tailored hydraulic solution!

We supply high-performance hydraulic gear pumps and motors for Parker PGP330 / PGM330 series replacement, with full modular customization options, strict quality control, and reliable after-sales service to support your heavy-duty hydraulic system demands.

Every PGP330 / PGM330 series OEM replacement is produced in line with international hydraulic standards and certified under ISO 9001 quality management system, with CE certification and RoHS compliance for global market application. Each unit is 100% tested for pressure (up to 275 bar max / 241 bar continuous), flow (up to 193.8 L/min), leakage, noise and dimensional accuracy before delivery, ensuring stable performance, low noise, high efficiency and direct drop-in replacement without modification, while matching the compact three-piece modular multi-pump configuration of the original PGP330 / PGM330 design.

12-month warranty against manufacturing defects
Professional technical support for modular configuration and model selection
Fast response to troubleshooting and after-sales inquiries
On-time delivery and reliable global shipping service
Flexible MOQ and customized labeling for distributors and importers
Customizable flange, shaft, port and seal options to match system requirements
Compatible with 16.1–64.6 cm³/rev displacement and 3,000 RPM max speed ratings

Hydraulic Gear Pump – FAQ

What is an external gear pump?

An external gear pump is a positive-displacement hydraulic pump that uses two externally meshing gears to deliver stable hydraulic flow.

What applications are external gear pumps commonly used for?

External gear pumps are widely used in construction machinery, agricultural equipment, industrial hydraulic systems, material handling, and mobile hydraulics.

What pressure range can an external gear pump handle?

Most external gear pumps operate at rated pressures up to 200–250 bar, with higher peak pressure depending on design and materials.

What displacement ranges are available?

External gear pumps are available in a wide range of displacements, typically from 1 cc/rev to over 100 cc/rev, depending on series and configuration.

What speed range is suitable for external gear pumps?

Typical operating speed ranges from 500 to 3000 RPM, depending on load conditions, oil viscosity, and pump design.

Can external gear pumps be customized?

Yes. External gear pumps can be customized in terms of displacement, pressure rating, shaft type, mounting flange, port size, and rotation direction.

Are external gear pumps interchangeable with OEM brands like Rexroth?

Many external gear pumps are designed to be dimensionally interchangeable with major OEM brands such as Rexroth, Danfoss, Eaton, and Parker.

What materials are used for external gear pumps?

Common materials include aluminum alloy housings for lightweight applications and cast iron housings for higher pressure and heavy-duty use.

What hydraulic fluids can be used?

External gear pumps are compatible with mineral hydraulic oils, HLP/HV oils, and other standard industrial hydraulic fluids.

How do I select the right external gear pump?

Selection depends on pressure rating, displacement, speed range, application requirements, and installation dimensions. Contact our engineers for technical support.

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