This 1/2″ Threaded Quick Hydraulic Coupling from the Harvester line, is compatible with M24x1.5 mm thread (marked as "M"). Connection and disconnection are achieved by screwing the male part into the female part. Features include trivalent zinc surface finish, thread locking, PTFE anti-extrusion rings, and NBR (Nitrile Rubber) seal. Models available: Male (5167), Female (5168) and Complete Set (5169).
Specifications
| Code | Total Length | Male Thread | Female Thread | Type | Male Key | Female Key |
| 5167 | 67.6 mm | M24 x 1.5 mm | — | Male | 1 1/8″ (28.58 mm) | — |
| 5168 | 72.5 mm | — | M24 x 1.5 mm | Female | — | 1 1/8″ (28.58 mm) |
| 5169 | 112.9 mm | M24 x 1.5 mm | M24 x 1.5 mm | Complete (Set) | 1 1/8″ (28.58 mm) | 1 1/8″ (28.58 mm) |
Performance Parameters
Connection & Disconnection: Screwing the male part into the female part
Working Pressure: 250 bar
Operating Temperature: -25°C to +100°C
Flow Rate: ± 65 l/min
Standard: ISO 7241-1 series “A”
Model 5167 (457420)
Product Features Single male hydraulic coupler, as the
active connection end of hydraulic systems. Trivalent zinc surface finish provides excellent corrosion and rust resistance, adapting to the dusty, humid field working environment of combine harvesters. Threaded design ensures tight sealing when screwed with female coupler (Model 5168).
Application Scenarios Directly connect to the male port of combine harvester hydraulic pipelines; ideal for
replacement of damaged original male couplers on harvesters. Easy to install with direct screw connection, no additional adjustment required.
Matching Suggestion: Pair with Model 5168 (Female Coupler) for complete hydraulic connection.
![5167]()
Model 5168 (457449)
Product Features
Single female hydraulic coupler, the
passive connection end exclusive for Model 5167. Built-in
NBR nitrile rubber seal and
PTFE anti-extrusion ring prevent seal extrusion and hydraulic oil leakage under high pressure (250 bar) working conditions. Thread locking structure avoids loosening during harvester operation.
Application Scenarios Connect to the female port of combine harvester hydraulic pipelines; suitable for
replacing aged or leaky original female couplers. Compatible with all combine harvesters with M24 x 1.5 mm threaded hydraulic pipelines, strong universality.
Matching Suggestion: Special matching with Model 5167 (Male Coupler) for optimal sealing effect.
![5168]()
Model 5169
Product Features Complete hydraulic connection set with pre-matched male and female couplers. Factory pre-test ensures
100% screw fit accuracy, no need for on-site debugging. Cost-effective for one-stop procurement; thread locking design ensures stable connection without loosening under the vibration of harvester high-speed operation. All accessories inherit the universal anti-corrosion and high-pressure resistance features of the series.
Application Scenarios
Ideal for new hydraulic pipeline installation and overall hydraulic system replacement of combine harvesters. Perfect for agricultural machinery maintenance factories and harvester users who need one-stop procurement, saving time on matching separate male and female couplers.
![5169]()
Product Advantages: Pre-matched + One-stop Procurement + High Fit Accuracy + Stable Vibration Resistance
Universal Standard Operation】
Simple Connection & Disconnection
Connection: Align the male coupler’s positioning key with the female coupler’s key slot, screw the male part clockwise into the female part until the thread is fully locked—no additional tools required, manual operation is sufficient for firm connection.
Disconnection: Rotate the male part counterclockwise to unscrew, direct separation without hydraulic oil splashing (internal seal structure effectively blocks oil leakage during disassembly).
Post-Installation Check: After screwing, gently pull the two ends to confirm no loosening; the connection surface fits tightly without gaps, ensuring stable hydraulic transmission under harvester vibration.
Universal Applicability
Complies with ISO 7241-1 Series A international standard, fully compatible with mainstream combine harvester brands and models with M24x1.5 mm threaded hydraulic pipelines.
Adapt to complex field working conditions: anti-vibration, anti-dust, anti-splashing water, no performance attenuation during long-term continuous operation of harvesters.
【High-Grade Material & Core Advantages】
Main Body Material: High-Strength Carbon Steel
Forged from high-quality carbon steel, integrated molding process, no welding seams, high structural strength and pressure resistance (bear 250 bar rated working pressure, far exceeding the daily hydraulic pressure of combine harvesters).
Precision machining of threads and positioning keys, smooth surface without burrs, accurate fit, avoiding thread slipping and positioning deviation caused by rough machining.
Surface Treatment: Trivalent Zinc Plating
Adopt professional trivalent zinc plating finish, 8-12μm plating thickness, uniform and compact coating, strong adhesion.
Superior anti-corrosion and anti-rust performance: resist oxidation and rust in humid, muddy, and chemical fertilizer-polluted field environments, service life is 3× that of ordinary galvanized products; no peeling or falling off during installation and disassembly.
Sealing System: NBR Seal + PTFE Anti-Extrusion Ring
NBR (Nitrile Rubber) Seal
High-quality oil-resistant nitrile rubber, specially formulated for hydraulic systems, excellent oil resistance and aging resistance, no hardening or cracking at -25°C ~ +100°C operating temperature.
Close fit with the joint inner wall, zero hydraulic oil leakage, ensuring the normal operation of the harvester's hydraulic lifting, steering and other core systems.
PTFE (Polytetrafluoroethylene) Anti-Extrusion Ring
High-hardness PTFE material, installed on both sides of the NBR seal, effectively prevent the seal from being extruded into the thread gap under high pressure.
Avoid seal damage and oil leakage caused by high hydraulic pressure, extend the service life of the sealing system by more than 50%.
Anti-Loosening Design: Integrated Thread Locking Structure
Built-in thread locking anti-slip structure, the thread has a precise self-locking effect after screwing, effectively resisting the strong vibration of harvesters during high-speed operation and walking on uneven roads.
No additional locking nuts or gaskets required, avoiding loose connection and oil leakage caused by vibration, ensuring long-term stable operation of the hydraulic system.
