🏗️ Heavy-Duty & High-Impact Transmission
Construction & Mining Machinery
High-torque, impact-resistant gears, girth rings, and planetary drive sets engineered for excavators, cranes, drilling rigs, and heavy mining crushers.
tractor hydraulic gear pump
Tractor Hydraulic Gear Pumps
Tractor hydraulic gear pumps covering eight brand families with 42 catalogue entries, from 5.0 to 33.0 ml/r and 90 to 250 bar.
Customization
100% to CAD / Sample
Pressure Rating
Up to 25 MPa / 250 bar
DFM Analysis
< 24 Hours Turnaround
Testing Standard
100% Bench Tested
Product overview
Tractor Hydraulic Gear Pumps manufacturing starts with confirmed technical requirements.
Review machine application, displacement, working pressure, port threads, and rotation direction before requesting a quotation.
A tractor hydraulic gear pump is normally engine-mounted and driven directly from the timing or accessory drive. It feeds the rear linkage, remote spool valves, and in many machines the power steering circuit. Replacement is driven by wear, noise, loss of flow, or seal failure. Across this range the catalogue publishes, per entry: the tractor models covered, the OEM reference numbers, and where available nominal displacement, maximum pressure, rotational speed, controlled flow rate, feed and discharge port dimensions, and direction of rotation.
Rated Pressure Up to 25 MPa (250 bar)
Max Speed Up to 3,600 r/min
Quality Control 100% Flow & Pressure Test
Tractor Hydraulic Gear Pumps Factory Genuine Spec
Selection guidance
How to specify a tractor hydraulic gear pumps for quotation.
Use equipment model, OEM reference numbers, rotation direction, and port threads to verify exact replacement compatibility.
1. Start from the OEM reference number on the existing pump or in the machine parts book. Several part numbers appear in more than one catalogue entry. 2. Match displacement. Displacement in ml/r sets flow at a given engine speed. Changing it changes circuit speed and drive torque. 3. Confirm rotation direction. Entries are listed as Right (Clockwise) or Left (Anti-clockwise). A gear pump run backwards will not prime. 4. Check both port threads. The catalogue mixes UNF, metric fine, BSP, and NPT threads within the same brand family, so never assume a standard fitting. 5. Check speed rating, not just pressure. Two entries in this catalogue share displacement and ports but differ in highest rotational speed by a factor of two. The lower-rated unit will be overspeed on the faster machine. 6. Check the controlled flow rate where a steering or constant-flow circuit is involved.
Technical specifications
Core technical parameters for engineering and procurement review.
| Product type | External gear hydraulic pump |
|---|---|
| Total entries | 42 |
| Brand families | 8 |
| Displacement range | 5.0 to 33.0 ml/r (including 30/14 and 18/12 ml/r tandem units) |
| Maximum pressure range | 90 bar to 250 bar (16 Mpa and 20 Mpa entries also listed) |
| Speed range | 1500 r/min to 500-3600 r/min depending on entry |
| Rotation | Both Right (Clockwise) and Left (Anti-clockwise) available per brand |
| Port threads | UNF, metric fine (M18x1.5, M16x1.5, M14x1.5), BSP (G), NPT, plain metric |
| Material | Not published in catalogue |
| Standard | No product standard stated in catalogue |
| Custom options | Sample-based and drawing-based development accepted |
Catalogue Interchange Reference
Available Models & OEM Reference Specifications
Cross-check OEM part numbers, displacement, max pressure, port threads, and rotation direction before ordering.
| Brand | Page | Entries | Coverage |
|---|---|---|---|
| FORD | 5-6 | 12 | 5000 to 8830 series; 11.0 to 33.0 ml/r; 90 to 225 bar |
| DEUTZ | 6 | 4 | FL912-913 engines; single and tandem; 175 to 250 bar |
| DEUTZ FAHR | 7 | 3 | 10 and 14 ml/r at 16 Mpa; clockwise and anti-clockwise |
| FIAT | 7-8 | 12 | 480, 640, BH and SH series; 11.0 to 25 ml/r; 160 to 200 bar |
| MASSEY FERGUSON | 9 | 7 | MF 375, MF 385, #9 and #10; 5.0 to 22 ml/r; 120 to 250 bar |
| JOHN DEERE | 10 | 2 | 30/14 ml/r tandem and 9.0 ml/r single; 140 to 250 bar |
| PARKER | 10 | 1 | 14.0 ml/r at 250 bar; large 50 mm and 36 mm ports |
| UTB | 11 | 1 | UTB 650; 11.0 ml/r at 160 bar; 12.0 L/min controlled flow |
* Note: Cross-check OEM reference number, rotation direction, and port threads against the existing pump on your machine. All models can also be custom manufactured from samples or drawings.
Custom options
Manufacturing details that can be reviewed before quotation.
- Clockwise (CW) or Anti-Clockwise (CCW) rotation configurations
- Multiple port thread standards: UNF, metric fine, BSP (G), and NPT
- Splined, cylindrical keyed, or tapered drive shaft options
- Integrated priority flow control valves for steering circuits
- Custom development from buyer 2D/3D CAD drawings or physical samples
Quality control
Inspection points tied to the approved technical file.
- 100% computerized end-of-line bench testing for flow, pressure, and leakage
- Micro-inch CMM dimensional verification of mounting pilot and shaft journals
- Volumetric efficiency validated under full rated operating pressure
- Batch traceability and inspection certificate supplied with every order
All products can be custom manufactured from 2D/3D CAD drawings or physical samples.
Quality Control & Inspection Matrix
Engineering Evidence & 100% Inspection for Tractor Hydraulic Gear Pumps.
Overseas procurement teams require verifiable technical data, not unsupported claims. Every production batch at ZhongYi is inspected against approved CAD blueprints and international standards (DIN, AGMA, ISO).
Component-Specific Quality Focus:
The supplier holds an IATF 16949:2016 certificate (certificate number DB00992, IATF registration number 0454540, issued 26/07/2022, expiring 25/07/2025). IATF 16949 covers automotive-sector quality management system requirements; it is not a product type approval and does not by itself certify any individual pump model. The catalogue does not publish material grades, heat treatment specifications, volumetric efficiency test data, or endurance test results. Buyers who need those should request them directly rather than assume they exist: dimensional inspection reports for the mounting flange, shaft, and port threads; material certificates for the housing and gear set; volumetric and overall efficiency test curves at rated speed and pressure; sample pumps for fitment and bench testing before a production order; and confirmation of the drawing revision used for manufacture. Because the certificate expiry date has passed relative to many buying cycles, ask for the current certificate before qualifying the supplier.
Zeiss / Hexagon 3D CMM
Validates 3D spatial GD&T, bore concentricity, center distance, and geometric tolerances down to ±0.002 mm.
Klingelnberg CNC Gear Analyzer
Inspects involute tooth profile error (fα), lead crowning (fβ), pitch cumulative error (Fp), and radial runout (Fr).
Digital Micro-Vickers & Rockwell Testers
Verifies surface hardness (58–62 HRC), core toughness, and effective carburized / nitrided case depth gradient.
Direct-Reading Optical Spectrometer
100% chemical composition verification of alloy steel forgings (20CrMnTi, 42CrMo, 18CrNiMo7-6, Stainless, POM).
Inspection Deliverables with Every Shipment
Complete Batch Traceability & Certified Test Reports
- EN 10204 Type 3.1 Mill Test Certificate (Chemical & Mechanical Properties)
- Zeiss 3D CMM Full Dimensional Inspection Sheet
- Klingelnberg Tooth Profile & Lead Crowning Graph Report
- Effective Carburized Case Depth & Hardness Curve Data
- 100% Pre-Shipment Visual, Thread & Anti-Rust Quality Verification
Our Factory Quality Commitment:
We maintain strict incoming material spectroscopy, in-process CNC tooth coordinate monitoring, and 100% final pre-shipment dimensional inspection. All custom gear batches are backed by our full manufacturing warranty.
ISO 9001:2015 Certified
DIN 4-7 / AGMA 11-13 Standards
Applications
Tractor Hydraulic Gear Pumps operating environments.
Confirm load, speed, duty cycle, environment, lubrication, and assembly constraints before selecting the final material and manufacturing route.
- Tractor rear hydraulic linkage and draft control
- Remote spool valve supply for loaders, tipping trailers, and mounted implements
- Power steering circuits on machines with hydraulic steering priority
- Aftermarket replacement supply for tractor repair workshops and parts distributors
- Fleet maintenance on mixed-brand agricultural machine populations
Application Markets
View All 5 Industry Hubs →
Where Tractor Hydraulic Gear Pumps Are Engineered & Deployed
Discover how this gear category meets extreme torque, low backlash, quiet operation, and weather-resistance demands in primary industry sectors:
🤖 Sub-Arcminute Motion & Dynamic Positioning
Automation & Robotics
Low-backlash, ultra-precise fine-pitch gears, ground helical racks, and planetary gearheads for robotics, AGV wheel drives, and high-speed motion axes.
🌾 Rugged Heavy-Torque Transmission
Agriculture & Farm Equipment
High-torque bevel gears, spur gears, and splined drive shafts for tractors, harvesters, rotary tillers, and agricultural PTO gearboxes.
Technical FAQ
Common questions before ordering tractor hydraulic gear pumps products.
Critical specifications are confirmed against final drawings before production.
Are these genuine OEM tractor pumps? ▼
No. These are aftermarket replacement pumps made by Zhejiang Daye Auto Parts Co., Ltd under the DAYE brand. The catalogue lists OEM reference numbers for interchange identification, and its cover states that it is for reference only.
24-Hour Engineering Quote & DFM Review
Upload Your Drawings for Tractor Hydraulic Gear Pumps Manufacturing
Send your 2D blueprints or 3D CAD models. Our senior gear engineering team will review tooth geometry, module/pitch, materials, heat treatment feasibility, and provide transparent factory pricing within 24 hours.
Supported CAD Blueprint & Drawing Formats:
STEP (.step / .stp) AutoCAD (.dwg / .dxf) IGES (.igs) SolidWorks / 3D CAD PDF Technical Blueprints Worn Physical Samples
Mutual NDA Protection
We sign strict Non-Disclosure Agreements to safeguard proprietary designs.
< 24h DFM Feedback
Rapid manufacturability review, tolerance checks, and unit quotation.
Direct Factory Engineering
Direct technical communication with senior master gear artisans.
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