The WG9000361322 L shaped tee joint body (NG12 / NW6 / NW9) is an indispensable component for efficient fluid routing in the constrained spaces of modern heavy‑duty trucks. Unlike standard tee fittings, the L‑shape allows a 90° branch off the main line, which is essential when navigating around engine blocks, transmission housings, and chassis rails. This fitting is particularly valuable in air brake systems, where it can split supply lines to front and rear circuits, and in air suspension systems, where it distributes air to leveling valves and air springs. The NG12, NW6, and NW9 designations correspond to nominal bore sizes (12 mm, 6 mm, and 9 mm) that match standard metric hose diameters used in commercial vehicles. By using the genuine WG9000361322 L shaped tee joint body, you achieve a neat, organised installation with minimal pressure loss, zero leakage, and maximum reliability – all critical for maintaining safety and performance in heavy‑duty applications.
Space‑Saving 90° Routing
Enables branch lines to turn at right angles, ideal for tight engine and chassis areas.
Leak‑Proof Integrity
Precision threads and sealing surfaces ensure tight, durable connections even under high pressure.
Corrosion‑Resistant Build
Manufactured from high‑grade brass with nickel plating for exceptional durability in harsh environments.
OEM‑Exact Fit
Manufactured to Sinotruk’s original specifications – direct replacement with no modifications required.
| Parameter | Specification |
|---|---|
| OEM Number | WG9000361322 |
| Product Name | L Shaped Tee Joint Body NG12 NW6 NW9 |
| Brand | HOWO / Sinotruk |
| Port Sizes | NG12 (12 mm) / NW6 (6 mm) / NW9 (9 mm) |
| Thread Sizes | NG12: M14 x 1.5, NW6: M10 x 1.0, NW9: M12 x 1.5 |
| Material | Brass (CW614N) with nickel plating |
| Configuration | L‑shape: one inlet (NG12), two outlets (NW6, NW9) at 90° |
| Operating Temperature | -40°C to +120°C |
| Max. Working Pressure | 20 bar (pneumatic) / 10 bar (hydraulic) |
| Quality Standard | Original Sinotruk / HOWO OEM specification |
The WG9000361322 L shaped tee joint body is extensively used across the HOWO and Sitrak model ranges, particularly in air brake, air suspension, and cooling systems where space is at a premium and different hose sizes are required. Its L‑shape design makes it ideal for routing lines around obstacles, such as the engine block, transmission, or chassis crossmembers. With its mixed port sizes, it is perfect for adapting between different line diameters, reducing the need for additional reducer fittings. Common applications include:
The WG9000361322 L shaped tee joint body is manufactured to the highest standards of precision and durability, ensuring it outperforms generic aftermarket alternatives. Starting with high‑quality brass billet, the body is CNC‑machined to exacting tolerances, producing perfectly formed threads and smooth sealing surfaces. The nickel‑plated finish provides a hard, corrosion‑resistant layer that stands up to the harsh chemicals, moisture, and road salts encountered in heavy‑duty operation. The internal bore is polished to reduce flow resistance and turbulence, while the L‑shape design is engineered to minimise pressure drop at the 90° bend. Every joint body is pressure‑tested to guarantee leak‑free performance, and dimensional inspection ensures a perfect fit in the original equipment ports. This level of quality guarantees that your pneumatic or hydraulic system will operate reliably, with no unexpected downtime or performance issues.
CNC Precision Machining
Threads and sealing faces are machined to micron‑level accuracy for perfect fit and sealing.
Corrosion Protection
Nickel plating provides robust resistance to rust, moisture, and aggressive chemicals.
Genuine OEM Quality
Manufactured to Sinotruk’s original specifications – guaranteed fit, form, and function.
100% Pressure Tested
Every joint body is tested for leakage at rated pressure to ensure reliability from day one.
Installing the WG9000361322 L shaped tee joint body requires careful attention to thread sealing and torque to ensure a leak‑free connection. Always clean the threads of both the joint and the mating ports to remove any debris or old sealant. Apply a suitable thread sealant (PTFE tape or liquid sealant) to the male threads, ensuring that the sealant does not enter the bore. Hand‑tighten the joint into each port, then use a wrench to tighten to the recommended torque (typically 15‑20 Nm for NW6, 20‑25 Nm for NW9, and 25‑30 Nm for NG12). Avoid over‑tightening, which can damage the threads or distort the fitting. After installation, pressurise the system and check for leaks using a soap solution or electronic leak detector. If the fitting is in a high‑vibration area, consider using a locking compound on the threads after verifying the correct orientation. Regular inspection for corrosion or thread damage will help maintain system integrity.
Choosing the WG9000361322 genuine L shaped tee joint body is an investment in the safety, reliability, and maintainability of your HOWO or Sitrak truck’s fluid systems. A substandard or mismatched fitting can lead to leaks, pressure drops, and contamination, which in turn can cause brake failure, suspension malfunction, or engine overheating. By using a genuine OEM component that meets Sinotruk’s rigorous standards, you ensure that every connection is strong, leak‑proof, and capable of withstanding the high pressures and temperatures of heavy‑duty operation. Fleet operators and workshop technicians worldwide trust this joint body to maintain the integrity of their pneumatic and hydraulic circuits, reducing downtime and repair costs. With its proven precision and durability, it is the unequivocal choice for those who refuse to compromise on quality.
“We have been using the WG9000361322 L‑tee fittings in our air suspension repairs for over a year. The quality is outstanding – they seal perfectly every time, and the mixed port sizes save us from using extra adapters. This is the only fitting we trust for our fleet.”
The WG9000361322 L shaped tee joint body is designed to fit a wide range of HOWO and Sitrak heavy‑duty trucks, including HOWO‑7, HOWO T series, HOWO A7, Sitrak C7H, T7H, and M5G models. It is a direct replacement for the original fitting used in air brake, air suspension, cooling, and fuel systems across these vehicle families. The NG12, NW6, and NW9 port sizes are compatible with standard metric hoses and fittings used in commercial vehicles, offering flexibility for mixed‑diameter connections. Always verify the OEM number WG9000361322 on the part or packaging to ensure you are installing the correct joint body for your specific application.
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