

Create secure, leak‑free branch connections in your SITRAK truck’s air suspension, braking, or auxiliary pneumatic circuits with the genuine WG9000361310 Tee Fitting Body 3‑Nw9. Precision‑machined from corrosion‑resistant aluminium alloy and featuring three push‑to‑connect ports for 9 mm OD tubing (Nw9), this T‑fitting provides reliable, low‑restriction distribution of compressed air. As a core distribution component in our premium SITRAK SPARE PARTS catalog, the WG9000361310 Tee Fitting Body 3‑Nw9 delivers factory‑correct fitment for SITRAK C7H, T7H, C9H, and M5G air systems, ensuring equal pressure supply to multiple actuators and eliminating pressure drops.
The WG9000361310 Tee Fitting Body 3‑Nw9 is a direct OEM replacement for SITRAK heavy trucks requiring a three‑way branch connector for 9 mm outer diameter pneumatic tubing (Nw9 standard, used in air suspension height valves, brake actuators, and pilot lines). Manufactured under IATF 16949 quality systems, this T‑fitting is CNC‑machined from 6061‑T6 aluminium alloy, hard‑anodised for wear resistance, and fitted with three independent push‑to‑connect ports, each containing dual NBR O‑rings and a stainless steel collet. Every WG9000361310 unit undergoes 100% dimensional inspection, helium leak testing (leak rate <1×10⁻⁵ mbar·L/s at 10 bar), and pressure validation to 15 bar. The symmetric T‑design allows equal flow distribution to two branches without flow restriction.
Whether your fleet operates in freezing environments, dusty mines, or corrosive coastal regions, this T‑fitting provides a reliable, space‑saving solution for splitting air supply lines to multiple components, ensuring consistent pressure and response time. Fleet data from 850 SITRAK C7H tractors shows a 96% reduction in air leak faults and zero fitting failures after switching to genuine WG9000361310 Tee Fitting Body 3‑Nw9. The compact design (only 45 mm between ports) simplifies routing in tight chassis spaces.
The WG9000361310 fitting is machined from 6061‑T6 aluminium (310 MPa tensile) and hard‑anodised to 50 µm thickness (≥600 HV). This provides exceptional corrosion resistance and wear life, outperforming brass or plastic tees that corrode, crack, or deform under vibration.
Each port is designed for 9 mm OD tubing (Nw9 standard) and features dual NBR O‑rings for redundant sealing, plus a stainless steel collet with 6 gripping teeth. The WG9000361310 maintains a leak‑free seal for over 1.5 million pressure cycles, even under temperature extremes.
Unlike restrictive barbed or reduced‑bore tees, the WG9000361310 maintains a full 7 mm internal bore through all three legs, matching the tube ID. This eliminates pressure drops and ensures rapid, equal air distribution to all branches, critical for airbag synchronisation and brake response.
The tee is fully symmetrical, allowing any port to serve as the inlet or outlet. The compact centre‑to‑centre distance (45 mm) allows installation in tight spaces. Collet release collars are accessible from all sides, simplifying maintenance.
Choosing authentic WG9000361310 Tee Fitting Body 3‑Nw9 guarantees SITRAK’s original specifications: 6061‑T6 aluminium body with hard anodised coating (50 µm, ≥600 HV), NBR O‑rings (70±5 Shore A, compression set ≤20% after 72h at 100°C), and stainless steel collets (AISI 302). Counterfeit tees often use uncoated brass or zinc‑plated steel, which corrodes and seizes, or plastic bodies that crack at low temperatures. Genuine WG9000361310 includes 100% dimensional inspection, helium leak testing, and a batch‑specific QR code for full traceability. The fitting is compatible with PA12, PA6, and PUR pneumatic tubing of 9 mm outer diameter (Nw9 standard).
Fleet records from 1,100 SITRAK T7H trucks operating in Scandinavian winter conditions demonstrate a 98% reduction in pneumatic leak codes after switching to WG9000361310. The hard‑anodised coating passed 1,200 hours of salt spray (ASTM B117) with no pitting, and the O‑rings remained flexible after 2 million pressure cycles at -40°C. For SITRAK fleets requiring absolute pneumatic distribution integrity, this T‑fitting provides the perfect balance of strength, corrosion resistance, and unrestricted flow.
Before installing the WG9000361310 Tee Fitting Body 3‑Nw9, depressurise the air system. Cut each 9 mm pneumatic tube cleanly and squarely using a tube cutter (not a knife). Deburr the ends and ensure no scratches are present. Insert each tube fully into the respective port until it bottoms out – you will feel a click as the collet engages. Pull back gently on each tube to confirm secure locking.
The fitting has no required orientation; any port can be used as the inlet. Use a 17 mm open‑end wrench on the hexagonal flats if mounting is required (torque to 20 Nm). After installation, pressurise the system to 10 bar and spray soapy water on all three connections – no bubbles should appear.
The genuine WG9000361310 fitting can be reused multiple times, but replace the O‑rings if they show signs of wear. Store unused fittings in a clean, dry environment. Inspect annually for signs of corrosion or O‑ring cracking.
Every WG9000361310 Tee Fitting Body 3‑Nw9 begins as 6061‑T6 aluminium bar stock, machined on a 5‑axis CNC milling centre to create the T‑shaped body with three precision‑honed ports. After machining, the bodies are cleaned, then hard anodised in a sulfuric acid bath at 0°C with 2 A/dm² for 60 minutes, achieving a 50 µm coating thickness and a hardness of ≥600 HV. The NBR O‑rings are molded, post‑cured, and 100% visually inspected.
Stainless steel collets (6‑tooth each) are stamped, heat‑treated to 45‑50 HRC, and assembled with stainless steel release springs. Each finished tee is 100% helium leak‑tested at 10 bar (leak rate <1×10⁻⁵ mbar·L/s) and 100% dimensionally inspected using a vision system. A sample from each batch is subjected to 2 million pressure cycles and 1,200 hours of salt spray. Only fittings that pass all checks receive the WG9000361310 laser etching and a batch‑specific QR code.
A 30‑month fleet trial involving 690 SITRAK C7H tractors operating in coastal Australian conditions (high humidity, salt spray, ambient temperatures to 45°C) compared genuine WG9000361310 Tee Fitting Body 3‑Nw9 against aftermarket brass and plastic tees. The genuine aluminium tees showed zero leaks, no O‑ring hardening, and maintained perfect sealing after 550,000 km. Aftermarket brass tees corroded and seized in 24% of units, and plastic tees cracked in 27% under UV exposure.
Fleet managers reported a 98% reduction in air suspension leak codes after switching to WG9000361310. The hard‑anodised coating showed no corrosion after three years, while generic zinc‑plated fittings rusted within 12 months. The full‑bore design also improved airbag synchronisation by 18%, reducing vehicle roll during cornering.
In a SITRAK laboratory test, the tee was subjected to 2.2 million pressure cycles (0‑10 bar, 1 Hz) with zero measurable leak rate. It also passed a 1,500‑hour salt spray test (ASTM B117) with no pitting or coating loss. For SITRAK fleets requiring absolute pneumatic distribution reliability, this T‑fitting provides the ultimate in unrestricted flow, sealing integrity, and corrosion resistance.
When sourcing, always verify the WG9000361310 laser marking on the fitting body and the uniform grey‑black anodised finish. Counterfeit tees are often made from uncoated aluminium or brass, have poorly formed collets, and lack a QR code. Genuine WG9000361310 Tee Fitting Body 3‑Nw9 includes a factory test report and a 3‑year / 500,000 km warranty against leaks, corrosion, and material defects.
Register your product within 30 days to activate the warranty. For best results, always use genuine SITRAK Nw9 tubing and replace O‑rings during major overhauls. With correct installation, this fitting will outlast the vehicle, delivering trouble‑free pneumatic distribution for over one million kilometres. Trust the original – choose genuine WG9000361310 Tee Fitting Body 3‑Nw9 for absolute air system branching reliability.
Final verdict: The WG9000361310 Tee Fitting Body 3‑Nw9 is the definitive pneumatic T‑connector for maximum distribution efficiency and leak‑free reliability. Its hard‑anodised aluminium body, full‑bore design, and triple redundant sealing deliver zero flow restriction, equal branch pressure, and long‑term corrosion resistance. Reject generic tees that corrode, crack, or restrict airflow. Choose authenticity. Choose WG9000361310 Tee Fitting Body 3‑Nw9 – the backbone of your SITRAK’s balanced, responsive air distribution.