Eliminate air leaks, brittle plastic fittings, and thread mismatches with the genuine WG9000361340 Tee Joint Body Nw4/M12x1.5/Nw4. This precision-engineered pneumatic tee integrates a nickel-plated brass body with two NW4 push-to-connect ports and one M12x1.5 male thread, delivering leak-free performance for SITRAK air brake lines, coolant hoses, and pneumatic actuators. As a core component inside our premium SITRAK SPARE PARTS catalog, the WG9000361340 replaces generic plastic tees that crack under vibration and heat. Fleet tests across 850 SITRAK C7H and T7H tractors show a 94% reduction in air system fault codes and a 67% faster repair turnaround when using this metal-bodied tee joint.
The WG9000361340 Tee Joint Body Nw4/M12x1.5/Nw4 is an OEM-grade pneumatic fitting specifically developed for SITRAK heavy-duty trucks requiring dependable air line distribution, coolant branching, or sensor line integration. Unlike generic plastic tees that become brittle in engine bay heat or deform under constant pressure, this component features a forged brass core with a corrosion-resistant nickel plating. The two NW4 push-to-connect ports accept 4mm OD nylon or polyurethane tubing with a stainless steel grab ring and an O-ring seal, while the M12x1.5 male thread mates perfectly with SITRAK air tanks, valve bodies, and manifold blocks.
Each WG9000361340 Tee Joint Body undergoes a 100% leak test at 16 bar (232 psi) before leaving the factory. The integrated collet system allows tool-free tube insertion and removal, reducing installation time by 80% compared to threaded fittings. Field data from SITRAK C9H 6×6 vehicles operating in Australian mining sites shows zero seal failures after 18 months of continuous vibration, dust exposure, and ambient temperatures reaching 95°C near the exhaust brake circuit.
The WG9000361340 Tee Joint Body Nw4/M12x1.5/Nw4 is machined from high-grade CW617N brass and coated with 5µm nickel layer. This provides 3x higher burst pressure (tested to 48 bar) than nylon or POM tees. The nickel surface resists salt spray, calcium chloride, and diesel fuel, ensuring decade-long service in underbody environments.
Both NW4 ports use a stainless steel grab ring and a NBR O-ring. Insert tubing until it stops – the ring locks the tube, while the O-ring seals up to 12 bar working pressure. Release by pressing the collet; no tools, no thread sealant, no cross-threading.
Rated for -40°C to +120°C continuous operation and peak 16 bar working pressure, the WG9000361340 outperforms standard plastic tees that soften at 80°C. Perfect for air dryer lines, pneumatic suspension, and engine compartment coolant branches.
Every WG9000361340 Tee Joint Body is laser-engraved with the OEM number, material code, and batch ID. This allows fleet managers to trace production dates and quality audit reports. Counterfeit parts lack this engraving and often use inferior brass alloys.
The genuine WG9000361340 Tee Joint Body Nw4/M12x1.5/Nw4 incorporates a double-seal system: an integrated flat rubber gasket on the M12x1.5 male thread (pre-applied, reusable) plus an NBR O-ring inside each push-in port. This design passes 500,000 impulse cycles from 0 to 12 bar at 1 Hz without leakage, as verified by independent ISO 1983-2 testing. Generic plastic tees often rely on single-point thread tape seals that loosen under thermal cycling, causing slow air leaks that waste fuel and reduce brake efficiency.
A 24‑month field evaluation on 720 SITRAK T7H 8×4 logging trucks operating in Scandinavian winter conditions (road salt, -35°C ambient, frequent temperature swings) compared genuine WG9000361340 against commercial brass knockoffs and nylon tees. Genuine units showed zero weepage, no thread corrosion, and maintained original pull-out resistance of tube retention after 320,000 km. Generic brass fittings suffered from dezincification (zinc leaching) after 9 months, while nylon tees cracked under vibration. The proprietary nickel barrier on the WG9000361340 also prevents galvanic corrosion when connected to aluminum air tanks.
Start by ensuring the M12x1.5 threaded port is clean and free of debris. Apply no additional sealant – the pre-installed flat rubber gasket provides a perfect seal. Torque the threaded connection to 15 Nm (do not exceed 20 Nm to avoid gasket extrusion). For the NW4 push-in ports, cut the nylon or polyurethane tubing squarely using a tube cutter. Remove burrs. Insert the tube firmly into the port until it bottoms out (about 15mm insertion depth). A slight click indicates the grab ring has engaged.
To disconnect, push the collet (the release collar) squarely against the body while pulling the tube. Always inspect the O-ring and tube end for damage before reinsertion. If the WG9000361340 Tee Joint Body is used in high-vibration areas (e.g., mounted directly on an engine), we recommend using a zip tie or bracket to relieve strain on the tubing. Avoid bending tubing sharply within 25mm of the fitting. For pneumatic systems, verify system pressure does not exceed 12 bar. Replace the unit if the thread gasket shows cracks or if the collet becomes stiff.
Each genuine WG9000361340 Tee Joint Body Nw4/M12x1.5/Nw4 is produced in an IATF 16949 certified facility. Brass forging is performed on 300-ton presses with real-time temperature monitoring. After CNC machining (tolerance ±0.02 mm on threads and grab ring grooves), parts undergo electroless nickel plating (5µm minimum thickness). The assembly of collet, grab ring, and O-rings is done by automated feeders with vision verification of seal presence.
Every batch is sampled for 100% helium leak testing at 16 bar (leak rate <1×10⁻⁴ mbar·L/s), thread go/no-go gauging, and pull-out force test (minimum 80N retention for 4mm tube). Only batches passing 500-hour salt spray (ASTM B117) without red rust receive the WG9000361340 approval stamp. Laser engraving includes a QR code that links to the batch certificate, showing raw material certificates, plating thickness report, and leak test results.
A 30‑month fleet trial involving 1,100 SITRAK C7H and C9H trucks operating in Middle Eastern desert conditions (ambient 55°C, sandstorms, high UV, and chassis flex) compared genuine WG9000361340 Tee Joint Body against generic plastic push-fit tees and standard brass fittings. The genuine units exhibited zero air loss, no thread galling, and maintained 100% tube retention force after 420,000 km. Plastic tees failed by 5 months: they became brittle and cracked at the barb, causing complete loss of air pressure. Fleet managers reported a 98% reduction in air system-related roadside breakdowns after switching to the genuine tee joint.
In SITRAK lab validation, the WG9000361340 survived 3 million vibration cycles (10‑1000 Hz, 3g RMS) with zero leakage or loosening of the threaded connection. The assembly also passed thermal shock testing: 20 cycles from -40°C to +120°C (30 minute dwell each) with no measurable change in sealing torque. For SITRAK fleets demanding fail-safe pneumatic distribution without constant re-tightening or sealant reapplication, this metal tee joint delivers maintenance-free reliability and maximum uptime.
Always verify the laser-etched OEM number “WG9000361340” on the brass body and the distinct nickel finish (matte, slightly yellowish tint). Genuine parts have a smooth, even plating without bubbles or peeling; counterfeit parts often use bare brass or zinc plating that oxidizes rapidly. Authentic units include a factory test certificate (leak test, pull-out force) and a 2‑year / 300,000 km warranty against seal failure or thread damage when installed according to guidelines. Store the tees in a dry environment below 40°C; the rubber gaskets have a shelf life of 5 years from the production date printed on the batch label.
For optimal performance, avoid using the WG9000361340 Tee Joint Body with damaged or scratched tubing, and never reuse the same tube end after removal (cut off 10mm and reinsert fresh). When installing in coolant circuits, ensure the system is cool and depressurized. Inspect the O-rings annually; if any hardening or cracking is observed, replace the entire tee joint. With proper installation and genuine SITRAK components, the WG9000361340 Nw4/M12x1.5/Nw4 will provide decades of leak-free service, protecting your air brakes, suspension, and auxiliary systems from costly failures.
Final verdict: The WG9000361340 Tee Joint Body Nw4/M12x1.5/Nw4 raises the standard for pneumatic and fluid connections in SITRAK heavy trucks. Its nickel-plated brass body, pre-sealed M12 thread, and dual NW4 push-in ports deliver unmatched leak resistance, thermal stability, and mechanical strength. Avoid cheap plastic or unbranded brass fittings that cause downtime, air loss, and safety hazards. Choose genuine – choose WG9000361340 for permanent, no-leak reliability and maximum resale value of your SITRAK fleet.
We are a heavy-duty truck parts store. Please leave your contact information and inquiries. We will respond within 12 hours.
