Parker Commercial PGE101 PGE102 PGE103 Replacement High Pressure Gear Pump

The PGE101, PGE102, PGE103, and PGE104 (collectively designated as the PGE platform) series high-pressure heavy-duty gear pumps manufactured by LIC Hydraulic (comprising strict model nomenclature such as PGE101-740-RBQ1-N-3700 and PGE102-820-RAT5-N-3700) are high-efficiency rotary fluid power units engineered to handle demanding mobile machinery, truck wet kits, and industrial power packs. Conforming precisely to standardized mounting flanges, input drive shaft specifications (including standard SAE splined or keyed configurations), port centerline layouts, and fluid performance curves, this entire pump platform delivers 100% drop-in interchangeability with original Parker Commercial (including the legacy Commercial Intertech series) PGE high pressure pump assemblies.

Standard low-tier utility gear pumps subjected to continuous workloads over 200 bar frequently undergo localized housing deflection, rapid wear plate scuffing, or shaft-seal failures that severely compromise volumetric output. LIC resolves these industry vulnerabilities by implementing a premium pressure-balanced bushing block configuration built inside an engineered high-tensile ductile iron casing. Every single PGE series pump undergoes 100% full-load simulated harsh vocational operational factory testing before dispatch. Sustaining a high volumetric efficiency above 95% under continuous pressure limits of 250-275 bar with minimal flow pulsations, our pumps represent a bulletproof procurement solution for B2B global distributors, heavy fleet mechanics, and OEM machinery builders.

Technical Specifications

Accurate, engineering technical data extracted in compliance with standard Parker Commercial PGE101 / PGE102 series catalogs:

• Product Series: PGE Heavy-Duty High-Pressure Gear Pump Platform (Single and Thru-Drive Multiple Configured Units)

• Core Geometric Profiles Available: PGE101 (Single assembly frame) & PGE102 (Multiple sectional configuration with thru-shaft integration capabilities)

• Model Number Specification Example 1 (PGE101-740-RBQ1-N-3700):

  • PGE101: Standard single gear pump construction.

  • 740: Volumetric displacement sizing index corresponding to a nominal displacement of approx. 31.0 cm³/rev (1.89 ci/rev).

  • R: Clockwise (Right-hand) rotation profile.

  • BQ1: Dedicated mounting pilot and input drive shaft definition (e.g., standard SAE 2-bolt pilot matching an SAE high-torque splined shaft).

  • N: High-performance Nitrile (NBR) fluid seal kit package with enhanced anti-draw vacuum thresholds.

  • 3700: Designated custom threaded rear-cover fluid port geometry code.

• Model Number Specification Example 2 (PGE102-820-RAT5-N-3700):

  • PGE102: Multiple gear pump front/middle stage with a dual-drive internal configuration.

  • 820: High-capacity displacement indexing yielding approx. 41.0 cm³/rev (2.50 ci/rev).

  • AT5: Custom heavy-yield input drive shaft paired with specified SAE mounting dimensions.

• Maximum Continuous Operating Pressure Limit: Up to 250 bar (3625 psi)

• Maximum Intermittent Peak Pressure Threshold: Up to 275 bar (4000 psi)

• Maximum Rated Rotational Velocity Speed: 3000 rpm – 3600 rpm (Subject to minor variations based on gear width selection)

• Minimum Allowable Operating Speed: 600 rpm

• Circuit Drive Format: Open-circuit fixed displacement quantitative gear mechanism.

• Main Housing Material Construction: High-tensile, creep-resistant heavy-duty ductile iron front/rear covers paired with high-yield alloy steel gear casings.

• Net Physical Weight: Single unit configurations approx. 11.5 kg – 14.0 kg (25.3 lbs – 30.8 lbs).

Key Technical Advantages

• High-Tensile Rigid Ductile Iron Structural Shroud (Anti-Warping): Unlike standard utility aluminum gear pumps, LIC’s replacement PGE series utilizes a rigid heavy ductile iron framing matrix. Under continuous 250 bar hydraulic structural cycles, the pump shell deformation matches near zero metrics. This eliminates internal gear track wall scuffing (sweeping) anomalies, protecting the volumetric boundary from inner bypass leakage.

• Hydrostatically Pressure-Balanced Bushing Blocks: The internal rotating core incorporates floating dual bushing blocks optimized via specialized hydrostatic balance chambers. Utilizing low-volume oil fed directly from the high-pressure side, the blocks are micro-forced precisely against the gear faces. This self-compensating mechanism minimizes axial fluid slippage across extended service lifespans.

• One-Piece Integrated Gear & Drive Shaft Assembly: The input drive shaft and spur gear geometry are machined out of a single piece of high-alloy forged steel through precise CNC milling operations. Eliminating loose keyway connections entirely removes the risk of sudden mechanical key shear fatigue. Micro-polished gear mesh interfaces minimize hydraulic fluid ripples and airborne operational noise.

• High-Resiliency Double Lip Front Shaft Seal Package: Located inside the front mounting pilot is an optimized radial lip seal assembly backed by a high-strength inner support ring. This design enables the front seal to remain secure during cold-weather thick oil startups or when experiencing fluid return backpressure spikes over 5 bar, completely eliminating front weeping.

Application Areas

The PGE101 and PGE102 series heavy-duty high-pressure gear pumps deliver exceptional pressure handling, reliable performance, and durable cast iron structures in harsh heavy industrial and mobile vocational circuits:

• Municipal Sanitation Vehicles & Fleet Equipment: Main fluid supply for refuse packer ejector plates, sweeping roller drives on street sweepers, and high-volume utility flushing circuits.

• Heavy Construction Infrastructure & Dump Trucks: Heavy-duty lifting cylinders on dump trucks, auxiliary loading loops on cement mixers, and high-pressure work tool attachment loops on skid-steer loaders.

• Utility Infrastructure Vehicles & Specialized Cranes: Outrigger stabilizer lines on truck-mounted boom cranes, hydraulic aerial lift platforms, and high-load fluid winch drum circuits.

• Fixed Industrial Material Scrap Processing Machinery: Core power units for metal recycling compactors, cardstock scrap shredders, and stationary factory utility hydraulic power units (HPUs).

Expert Maintenance Tips

• Mandatory Pre-Lubrication Priming Prior to First Commissioning: The internal sliding bushing blocks rely entirely on a microscopic fluid barrier to prevent boundary friction wear. Prior to spinning up a newly replaced unit (such as PGE101-740-RBQ1-N-3700), pour clean anti-wear hydraulic oil straight into the suction intake port and rotate the shaft several turns by hand. Turning the pump over completely dry will cause immediate 300°C face scuffing, reducing service life or locking up the pump right away.

• Enforce Perfect Suction Line Sealing to Prevent Cavitation Erosion: Operating at velocities near 3000 rpm demands a completely unrestricted fluid feed. Inspect the intake flange O-ring carefully during assembly; even minor loose fittings can introduce micro-air bubbles into the suction oil stream. These bubbles implode violently under high pressure inside the pump gears, leading to rapid cavitation erosion of the ductile iron casing walls and high-pitched noise.

• Maintain Rigid Solid Particle Contamination Barriers: Although heavy cast iron gear pumps offer superior silt resistance compared to axial piston platforms, fine abrasive particles (such as rust scale or silica) suspended in the oil will scour the micro-finish of the floating bushings over time. Equip the system with high-efficiency return-line filter elements, holding fluid cleanliness to ISO 4406 20/18/15 or better to guarantee continuous operational uptime for years.

3515424 PGE103-3200-RBS1-N-3700

3515399 PGE101-250-RBQ1-N-3700

PGE102-2200-RBR1-N-3700

PGE103-4200-RBS1-N-3700

3507671

PGE101-420-RBQ1-N-3700

3521251

PGE102-2200-RHW1-N-3700

3507671 PGE101-420-RBQ1-N-3700

PGE101-420-RBQ1-N3700

3515403 PGE102-630-RBR1-N-3700

PGE104-740/740-RBQ1/1-V-4512 3805791

PGE103-4200-RBS1-N-3700

PGE103-6000-RBS1-N-3700

3733209 PGE104-1130/630-RBR1/1-N-3900

3515397 PGE101-200-RBQ1-N-3700

PGE 102-1130-RBR1-N-3700

PGE102-2500-RBR1-N-3700

PGE101-250-RBQ1-N-3700

PGE102-1600-RBR1-N-3700

3781096 PPV101-80/B-1BRMM-P0 +PGE103-32

PGE101-365-RBQ1-N-3700

PGE103-5000-RBS1-N-3700

PGE102-1900-RBS1-N-3700

HYDAC PGE102-2200-RBR1-N-3700

PGE102-1400-RBR1-N-3700

PGE104-2200/630-RBR1 42L/MIN 160BAR/

PGE102-1900-RBR1-N-3700

PGE102-1130-RBR1-N-3700