🏗️ 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.
Fiat tractor hydraulic gear pump
FIAT Tractor Hydraulic Gear Pumps
Twelve hydraulic gear pumps for Fiat tractors covering the 480 and 640 series and their BH and SH variants, from 11.0 to 25 ml/r at 160 to 200 bar, with metric and UNF port options and both rotation directions.
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
FIAT 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.
The catalogue structure is useful for buyers: several entries are listed as matched pairs that differ only in rotation direction. For example, OEM 5129478 serves the FIAT 640 and rotates anti-clockwise while OEM 5179722 serves the FIAT 480 and rotates clockwise, with otherwise identical 11.0 ml/r, 160 bar, 500-3200 r/min, and 16.0 L/min figures. The BH series entries (FIAT 640BH and FIAT 480BH) drop to a 6.0 L/min controlled flow rate and 500-3000 r/min, and use M18x1.5 feed and M16x1.5 discharge threads. The SH series entries step up to 13.0 ml/r and use 5/8-18UNF feed with M14x1.5 discharge. The two largest entries, 5180277 at 19 ml/r and the 25 ml/r entry, are rated 200 bar with 18 L/min controlled flow and M18x1.5 discharge. This pairing pattern means the physical pump is often the same body in two rotation variants. Ordering the wrong rotation is the most common error in this family.
Rated Pressure Up to 25 MPa (250 bar)
Max Speed Up to 3,600 r/min
Quality Control 100% Flow & Pressure Test
FIAT Tractor Hydraulic Gear Pumps Factory Genuine Spec
Selection guidance
How to specify a fiat tractor hydraulic gear pumps for quotation.
Use equipment model, OEM reference numbers, rotation direction, and port threads to verify exact replacement compatibility.
1. Confirm the OEM reference number first. FIAT tractors of the same model year can carry different pump part numbers depending on whether the machine has factory hydraulic remotes, a loader valve, or power steering priority. 2. Match displacement, not just the mounting flange. Nominal displacement in ml/r sets flow at a given engine speed. A larger displacement raises flow but also raises drive torque and heat load. 3. Confirm rotation direction. Catalogue entries are listed as Right (Clockwise) or Left (Anti-clockwise) as viewed from the drive end. A pump run backwards will not prime. 4. Check both port threads before ordering. The catalogue mixes UNF, metric fine (M18x1.5, M16x1.5, M14x1.5), BSP (G), and NPT threads within the same brand family. Adapters add leak points and cost. 5. Match pressure capability to the relief setting. Maximum pressure in the catalogue is the pump rating, not the system setting. The relief valve normally limits working pressure below that figure. 6. Check the controlled flow rate where listed. Some entries include a controlled flow rate in L/min, which matters for steering and constant-flow circuits.
Technical specifications
Core technical parameters for engineering and procurement review.
| Product type | Hydraulic gear pump |
|---|---|
| Entries in catalogue | 12 |
| Displacement range | 11.0 ml/r to 25 ml/r |
| Maximum pressure range | 160 bar to 200 bar |
| Speed range | 500-3000 r/min to 500-3200 r/min |
| Controlled flow rate | 16.0 L/min to 6.0 L/min |
| Port configurations | 5/8-18UNF / M14*1.5 to Φ20 / Φ15 |
| Rotation directions available | Left (Anti-clockwise) to Right (Clockwise) |
| 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.
| # | Applied To | Catalogue Page | OEM Ref. No. | Manufactory Ref. | Displacement | Max Pressure | Speed | Controlled Flow | Feed Port | Discharge Port | Rotation |
|---|---|---|---|---|---|---|---|---|---|---|---|
| 1 | FIAT Tractors | 7 | 5129478 | FIAT 640 | 11.0 ml/r | 160 bar | 500-3200 r/min | 16.0 L/min | Φ20 | Φ13.6 | Left (Anti-clockwise) |
| 2 | FIAT Tractors | 7 | 5179722 | FIAT 480 | 11.0 ml/r | 160 bar | 500-3200 r/min | 16.0 L/min | Φ20 | Φ13.6 | Right (Clockwise) |
| 3 | FIAT Tractors | 7 | FIAT | FIAT 640BH | 11.0 ml/r | 160 bar | 500-3000 r/min | 6.0 L/min | M18*1.5 | M16*1.5 | Right (Clockwise) |
| 4 | FIAT Tractors | 7 | FIAT | FIAT 480BH | 11.0 ml/r | 160 bar | 500-3000 r/min | 6.0 L/min | M18*1.5 | M16*1.5 | Left (Anti-clockwise) |
| 5 | FIAT Tractors | 8 | Not published | FIAT | 11.0 ml/r | 160 bar | 500-3000 r/min | 6.0 L/min | Φ13.6 | Φ13.6 | Right (Clockwise) |
| 6 | FIAT Tractors | 8 | 5129488 | FIAT | 19.0 ml/r | 160 bar | 500-3000 r/min | 6.0 L/min | Φ20 | Φ15 | Right (Clockwise) |
| 7 | FIAT Tractors | 8 | 5131170, 5180273 | Not published | 14 ml/r | 200 bar | 500-3000 r/min | 18 L/min | Φ20 | M18*1.5 | Right (Clockwise) |
| 8 | FIAT Tractors | 8 | 5180271, 5135887, 5167392, 5180275 | Not published | 14 ml/r | 200 bar | 500-3000 r/min | 18 L/min | Φ20 | M18*1.5 | Left (Anti-clockwise) |
| 9 | FIAT Tractors | 8 | FIAT | FIAT 640SH | 13.0 ml/r | 160 bar | 500-3000 r/min | 6.0 L/min | 5/8-18UNF | M14*1.5 | Right (Clockwise) |
| 10 | FIAT Tractors | 8 | FIAT | FIAT 480SH | 13.0 ml/r | 160 bar | 500-3000 r/min | 6.0 L/min | 5/8-18UNF | M14*1.5 | Left (Anti-clockwise) |
| 11 | FIAT Tractors | 8 | 5180277 | Not published | 19 ml/r | 200 bar | 500-3000 r/min | 18 L/min | Φ20 | M18*1.5 | Left (Anti-clockwise) |
| 12 | FIAT Tractors | 8 | FIAT | Not published | 25 ml/r | 200 bar | 500-3000 r/min | 18 L/min | Φ20 | M18*1.5 | Left (Anti-clockwise) |
* 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 FIAT 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
FIAT Tractor Hydraulic Gear Pumps operating environments.
Confirm load, speed, duty cycle, environment, lubrication, and assembly constraints before selecting the final material and manufacturing route.
- Fiat tractor hydraulic linkage, remotes, and steering circuits
- Replacement supply for Fiat 480, 640, and SH and BH series machines
- Distributors stocking paired clockwise and anti-clockwise variants
- Agricultural machinery repair workshops in Mediterranean and export markets
Application Markets
View All 5 Industry Hubs →
Where FIAT 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 fiat tractor hydraulic gear pumps products.
Critical specifications are confirmed against final drawings before production.
What tractor models do these pumps cover? ▼
The 480, 640, 480BH, 640BH, 480SH, and 640SH series.
Why are some entries paired by rotation? ▼
Some Fiat models run opposite rotation off the same mounting. The catalogue lists pairs where the only difference is Right (Clockwise) or Left (Anti-clockwise). Cross-check the existing pump before ordering.
What thread types are used? ▼
UNF (5/8-18UNF), metric fine (M18x1.5, M16x1.5, M14x1.5), and plain metric ports.
24-Hour Engineering Quote & DFM Review
Upload Your Drawings for FIAT 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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