GRR090 GRR074 Hydraulic Pump for Danfoss Series 45 4747120 GRL074 GRL090 for 950H/K/M 962H/K/M 966H/K/M L110 L120 L150
GRR090 GRR074 Hydraulic Pump for Danfoss Series 45 4747120 GRL074 GRL090 for 950H/K/M 962H/K/M 966H/K/M L110 L120 L150
$999.00$1.00
The Danfoss GRR Series belongs to the high-performance Series 45 (G Frame) open-circuit axial piston pumps. These Right-Hand (Clockwise) rotating pumps feature an integrated adjustable mechanical displacement limiter and an upgraded SAE-C frame, designed for heavy-duty mobile and industrial applications.
Application Information：
This high-strength open-circuit hydraulic pump series acts as the definitive power driver across global mobile machinery fleets:
* Agricultural Equipment: Main hydrostatic propulsion or critical attachment drives for large grain harvesters and multi-crop combines (e.g., direct replacement for Claas Lexion systems).
* Road Construction Machinery: Steering and main hydraulic implement loops for motor graders (e.g., suitable for Caterpillar grader installations) and asphalt pavers.
* Earthmoving Equipment: Specialized auxiliary hydraulic systems for medium-tonnage wheel loaders and backhoe loaders.
* Independent Fan Drives: Primary high-flow drive pump for independent radiator cooling fans in large mining trucks and material handlers.
Model | Displacement (cc/rev) | Continuous Pressure (bar) | Max. Speed (rpm) | Weight (kg) | Port Type |
GRR074B / GRL074B | 74 | 310 | 2,800 | 29 | Axial |
GRR090C / GRL090C | 90 | 260 | 2,600 | 36 | Radial |
To support international repair shops, planetary distributors, and fleet operators, we maintain a comprehensive inventory of factory‑standard GRR series internal components:
Complete rotating groups (cylinder block/rotor and valve plate)
Piston & slipper assemblies (9‑piece set) and high‑strength hold‑down plates
Swashplates (cam rocker arms) and polymer‑coated bearings
A‑Pad rear auxiliary mounting covers (for tandem secondary pump installation)
Control spools (LS/PC), shafts, and complete bearing sets
Overhaul seal and gasket kits
Structure: Variable Displacement Pump
Circuit Type: Open Circuit
Direction of Rotation: Clockwise / Right Hand
Displacement Range: 74 cm³/rev / 90 cm³/rev (Depending on model)
Nominal Pressure: 260 - 310 bar (3770 - 4495 psi)
Maximum Pressure: 350 - 400 bar (5075 - 5800 psi)
Mounting Flange: SAE-C 4-Bolt
Application: Heavy Engineering Equipment, Rotary Drilling Rigs, Road Rollers