The poor air shaft opera is a specialized pneumatic connection assembly used in the brake and air suspension systems of HOWO MAX 4X2 tractors. A reliable poor air shaft opera ensures leak free connections and consistent air flow. This genuine HOWO poor air shaft opera includes all necessary holders, rings, joints, and hoses. When you choose authentic Howo Parts, you get a complete set of components that match factory specifications and provide long service life.
The nut holder NG6 is a precision machined component that secures pneumatic fittings in place. It is made from zinc plated steel with a hexagon outer profile for easy tightening. The nut holder NG6 works together with the circlip to lock the elastic element. This holder prevents unintended loosening under vehicle vibration.
The circlip NG6 is a snap ring that retains the elastic element inside the holder. It is manufactured from spring steel with a black oxide finish. The circlip NG6 provides a positive lock that can be removed with standard snap ring pliers. This design allows for easy maintenance and replacement of the elastic element.
The elastic element NG6 is a rubber or polyurethane buffer that absorbs shock and vibration in the pneumatic line. It isolates the joint from chassis movement, preventing metal fatigue and air leaks. The elastic element NG6 is resistant to compressed air, oil, and ozone. It maintains flexibility from -40°C to +100°C.
The plug M10X1 seals unused ports in the pneumatic distribution block. It has an M10 metric thread with 1mm pitch and a hexagon head for tightening. The plug M10X1 is supplied with a pre applied thread sealant that cures upon installation, preventing air leakage. This plug is essential for custom pneumatic circuit configurations.
The straight through joint body NG6 / NW4 connects two pneumatic hoses or fittings in a straight line. It has a body made from nickel plated brass with an NG6 interface on both ends and a NW4 flow cross section. The straight through joint body NG6/NW4 uses an O ring seal for leak free performance up to 12 bar pressure. It is ideal for connecting brake lines in confined spaces.
The right angle joint body NG6 / NW4 changes the direction of the air line by 90 degrees. This fitting is used where space is limited or to route hoses around obstacles. The right angle joint body NG6/NW4 is machined from corrosion resistant brass and includes captive O rings. Two units are included for left and right side applications.
The brake plastic hose is a flexible nylon tube that carries compressed air to the brake actuators. It is made from polyamide 12 with a burst pressure of 60 bar. The brake plastic hose is resistant to UV, salt, and common automotive fluids. It is supplied in cut lengths of 3 pieces, each with a protective outer braid for abrasion resistance.
Poor air shaft opera – complete pneumatic connection kit for HOWO MAX 4X2
| Material Encoding | Name |
|---|---|
| WG9000361003 | Nut holder NG6 |
| WG9000361002 | Circlip NG6 |
| WG9000361001 | Elastic element NG6 |
| WG9000361010 | Plug M10X1 |
| WG9000361107 | Straight-through joint body NG6 / NW4 |
| WG9000361207 | Right-angle joint body NG6 / NW4 |
| 1.90003E+11 | Brake plastic hose |
Our poor air shaft opera includes every sealing element and fastener needed for a leak free pneumatic connection. The nut holder NG6 and circlip NG6 work together to secure elastic element NG6. The plug M10X1 seals unused ports. All joints are supplied with O rings and thread sealant, eliminating air loss.
All components in this poor air shaft opera kit are rated for working pressure up to 12 bar (174 psi). The brake plastic hose has a burst pressure of 60 bar. The brass joint bodies are tested to 24 bar without leakage. This safety margin ensures reliable operation in heavy duty braking systems.
The elastic element NG6 and brake plastic hose are formulated to remain flexible from -40°C to +100°C. The nickel plated brass fittings resist corrosion in all climates. This temperature tolerance makes the poor air shaft opera suitable for operation in both arctic cold and desert heat.
The straight through joint body NG6/NW4 and right angle joint body NG6/NW4 use push to connect technology. Simply insert the hose fully into the collet and pull back to lock. No special tools are required. The nut holder NG6 is tightened with a 13mm wrench. All components are color coded for quick identification.
The nut holder NG6 is manufactured from cold formed steel with a hexagon drive of 13mm across flats. Its internal bore is machined to 6.2mm to accept the elastic element NG6. The holder has a flange that bottoms against the mounting surface when tightened.
The circlip NG6 is a standard DIN 471 internal retaining ring made from spring steel. It snaps into a groove inside the nut holder NG6, capturing the elastic element NG6 securely. This assembly isolates the pneumatic tube from tensile loads that could pull the tube out of the fitting. The nut holder NG6 can be reused multiple times if the circlip is not deformed. Replacement circlips are available separately.
The elastic element NG6 is molded from a thermoplastic polyurethane compound with a Shore A hardness of 85. It is designed to accommodate angular misalignment up to 15 degrees and axial movement of 2mm. The elastic element NG6 absorbs vibration from the chassis and prevents metal fatigue in the brake lines.
Its internal diameter of 5mm allows unrestricted air flow. The element is resistant to brake fluid, diesel, and road salts. Under normal conditions, its service life exceeds 500,000 kilometers. If the elastic element NG6 becomes brittle or cracked, it should be replaced immediately to avoid air leaks.
The plug M10X1 has a thread length of 12mm and a hexagon head of 14mm across flats. It is machined from 360 brass with a trivalent chromate finish for corrosion resistance. The tapered seat at the bottom of the thread compresses an O ring that seals the port. The plug M10X1 is used to close unused ports on air brake valves, air dryer ports, and distribution blocks. When installing, apply a torque of 15 Nm to achieve a proper seal. Do not overtighten as this may strip the threads. The plug M10X1 is reusable up to three times before the sealant degrades. For permanent installations, a thread locking compound is recommended.
The straight through joint body NG6/NW4 is machined from brass bar stock and nickel plated. Its NG6 interface uses a 6mm push in collet that accepts nylon or polyurethane tubing with a 6mm outer diameter. The NW4 flow cross section measures 4mm, providing adequate flow for brake actuators. Inside the joint, a stainless steel grab ring holds the tube and a viton O ring creates the seal.
The joint can be disassembled by pushing the collet inward while pulling the tube. This straight through joint body is compatible with all NG6 fittings from HOWO and WABCO systems. It is rated for 12 bar continuous pressure and 24 bar peak.
The right angle joint body NG6/NW4 redirects the air line by 90 degrees, saving space where straight connections are not possible. Its body has the same push in collet and sealing components as the straight version but with a 90 degree bend radius of 15mm. The right angle joint body is typically used at the brake chamber inlet or near the axle where clearance is limited.
Two units are provided in the poor air shaft opera kit for left and right wheel ends. The swivel design allows the joint to rotate 360 degrees before tightening the lock nut. This feature simplifies hose routing and reduces stress on the tubing.
The brake plastic hose supplied in this kit is extruded from polyamide 12 (PA12) in accordance with ISO 7628. It has an outer diameter of 6mm and an inner diameter of 4mm. The wall thickness is 1mm, giving a burst pressure of 60 bar at 23°C. The hose is ultraviolet stabilized to prevent degradation from sunlight.
It is also resistant to zinc chloride and magnesium chloride, common de icers. Each of the three hoses is 2 meters long, allowing for replacement of front and rear brake circuits. The hose is marked with the production batch and maximum working pressure. When cutting to length, use a sharp knife and cut squarely. Do not use side cutters as they will deform the tube.
Begin by cleaning the mounting area around the pneumatic port. Insert the elastic element NG6 into the nut holder NG6, then secure it with the circlip NG6. Screw the nut holder NG6 assembly onto the port and tighten to 18 Nm. For the straight through or right angle joint bodies, push the brake plastic hose fully into the collet until it bottoms out. Pull back gently to lock. Do not use lubricants on the hose.
For the plug M10X1, clean the threads and apply a drop of thread locker before screwing into unused ports. After all connections are made, pressurize the system to 8 bar and apply soapy water to check for bubbles. Tighten any leaking fittings slightly. The poor air shaft opera components are now ready for service.
Inspect the poor air shaft opera assembly every 50,000 kilometers or annually. Look for cracks in the elastic element NG6, rust on the nut holder NG6, or loose circlips. Check the brake plastic hose for chafing, cuts, or bulges. If the hose is damaged, cut out the damaged section and install a new joint body. The straight through joint body NG6/NW4 can be reused if the grab ring and O ring are in good condition. Replace the plug M10X1 if the threads or seal are damaged. Always keep spare elastic elements and circlips in your workshop because they are the most commonly replaced items.
This poor air shaft opera kit is specifically designed for the HOWO MAX 4X2 tractor with WABCO pneumatic brake systems. It also fits HOWO MAX 6X4 and 8X4 variants using the same NG6 fittings.
The brake plastic hose is compatible with all HOWO trucks manufactured after 2015. For older models with imperial fittings, adapter sleeves may be required. The nut holder NG6 and circlip NG6 are standardized components used in many European truck brands, making this kit versatile for mixed fleets. Always verify the thread size of your ports before ordering.
Generic poor air shaft opera kits often use inferior materials that fail quickly. The rubber elastic elements may harden and crack within months. Generic plastic hoses may not be UV stabilized, leading to brittleness and cracking. The plating on generic nut holders is thin and rusts easily.
Genuine HOWO components use certified materials: the elastic element NG6 is made from German polyurethane, the circlip NG6 from Swedish spring steel, and the brake plastic hose from BASF PA12. Each part is traceable to a production batch. The price difference is minimal compared to the cost of an air brake failure on a loaded truck.
If you hear a continuous hissing sound near a pneumatic connection, suspect a leaking elastic element NG6 or a worn O ring in the joint body. Spray soapy water to locate the leak. If the leak is from the nut holder area, replace the elastic element NG6 and the circlip NG6. If the leak is from the hose connection, cut off the damaged hose end and reinsert it into the joint body.
If the hose no longer holds, replace the joint body. A plugged M10X1 may cause slow system pressure buildup; remove and inspect the port for debris. Always use genuine HOWO replacement parts to ensure proper sealing.
Store the poor air shaft opera kit in a cool dry place away from direct sunlight and ozone sources (like electric motors). The elastic element NG6 and brake plastic hose should not be stored near solvents or fuel. Under proper storage, the shelf life is five years. After five years, check the elastic element for flexibility and the hose for cracking before installation.
The nut holder NG6, circlip NG6, and brass joint bodies have unlimited shelf life if kept dry. The plug M10X1 has a shelf life of three years due to the pre applied sealant. Keep the original packaging until use.
The poor air shaft opera components are RoHS compliant, containing no lead, cadmium, or mercury. The brake plastic hose is made from PA12 which is recyclable under resin code 7. The brass fittings can be melted down and reused. The elastic element NG6 is polyurethane, which can be incinerated for energy recovery. Do not dispose of brass or steel parts in landfill; recycle them with scrap metal. All manufacturing processes comply with ISO 14001 environmental management standards. By choosing genuine HOWO parts, you support sustainable manufacturing.
Each poor air shaft opera kit includes a printed installation diagram showing the correct orientation of the elastic element NG6 and circlip NG6. The diagram also lists torque specifications for each fitting. For additional support, you can access the HOWO online parts catalog using the material encoding numbers. Authorized HOWO dealers in Nigeria, Ghana, and Kenya provide telephone support for installation questions. Always keep the original packaging with the batch number for warranty claims. The warranty covers manufacturing defects for 12 months from date of purchase.
Q: Can I reuse the circlip NG6 after removal? A: Yes, if it is not deformed. Use circlip pliers to remove it carefully. Q: Is the brake plastic hose compatible with DOT brake fluid? A: No, this hose is for compressed air only. Do not use with hydraulic brake fluid. Q: How many plug M10X1 are included? A: One plug is provided. Order additional plugs separately if needed. Q: Can I use these fittings for air suspension systems? A: Yes, the poor air shaft opera components are suitable for all compressed air circuits up to 12 bar.
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