Upgrade your SITRAK truck’s pneumatic central distribution with a high‑integrity, space‑saving solution that prevents reverse flow and consolidates multiple air outlets. The genuine WG9000361410 Multi‑Hole Module With Check Valve integrates a precision‑machined aluminium manifold body, four independent Ng6 output ports (6 mm OD), and a robust integrated check valve that blocks back‑pressure from critical circuits such as air suspension height valves, brake pilot lines, or differential lock actuators.
The WG9000361410 Multi‑Hole Module With Check Valve is a direct OEM upgrade for SITRAK medium and heavy trucks that require centralised air distribution with integrated reverse‑flow prevention.
Whether your fleet requires powering four auxiliary air functions from a single source (e.g. air suspension dump valves, fifth wheel slide, cab tilting, differential locks) or isolating critical pilot lines from pressure spikes, this module provides a leak‑free, compact alternative to threaded tee stacks and external check valves.
Unlike simple junction blocks, the WG9000361410 incorporates a stainless steel spring‑loaded check valve directly into the inlet passage. It allows free flow from inlet to all four outlets but instantly seals when downstream pressure exceeds inlet pressure, preventing cross‑contamination between circuits (e.g. air suspension feedback into brake pilot line). Cracking pressure is just 0.3 bar, ensuring minimal pressure drop.
The module features one push‑to‑connect inlet port for 8 mm OD tubing (Ng8) and four outlet ports for 6 mm OD tubing (Ng6). This 1‑to‑4 configuration supplies air to up to four separate actuators or valves from a single source, eliminating a maze of tees, elbows, and reducers. The WG9000361410 maintains unrestricted flow channels (5.5 mm inlet bore, 3.5 mm each outlet) to ensure rapid pressure build‑up across all outlets.
The one‑piece manifold body is machined from solid 6061‑T6 aluminium (310 MPa tensile) and hard‑anodised to 50 µm thickness (≥600 HV). This provides exceptional corrosion resistance and wear life, outperforming cast zinc or plastic distribution blocks that crack, corrode, or deform under vibration and thermal cycling.
Each push‑to‑connect port uses two NBR O‑rings (70±5 Shore A) for redundant sealing and a stainless steel collet (6 teeth for Ng6, 8 teeth for Ng8). The WG9000361410 maintains a full 5.5 mm inlet bore and 3.5 mm outlet bores, matching tube IDs – no flow restriction even when all four outlets are active. Seals remain leak‑free after 1.5 million pressure cycles from -40°C to +120°C.
Choosing authentic WG9000361410 Multi‑Hole Module With Check Valve 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). The internal check valve features a stainless steel spring (AISI 316) and a NBR poppet moulded to a brass guide, tested for 2 million cycles without leakage.
WG9000361410 includes 100% dimensional inspection, helium leak testing (leak rate <1×10⁻⁵ mbar·L/s at 10 bar), and a batch‑specific QR code for full traceability. The module is compatible with PA12, PA6, and PUR pneumatic tubing of 8 mm OD (Ng8 inlet) and 6 mm OD (Ng6 outlets).
Fleet records from 850 SITRAK C7H heavy‑duty trucks operating in Australian mining environments (high dust, vibration, and temperature extremes) demonstrate a 99% reduction in pneumatic distribution leaks after switching to WG9000361410. The hard‑anodised coating passed 1,200 hours of salt spray (ASTM B117) with no pitting, and the check valve maintained perfect sealing after 500,000 off‑road km. For SITRAK fleets requiring clean, centralised, reverse‑flow‑protected air distribution, this multi‑hole module provides unmatched strength, corrosion resistance, and functional integration.
Before installing the WG9000361410 Multi‑Hole Module With Check Valve, depressurise the air system and identify the inlet side (marked “IN” on the module body). Cut the 8 mm supply tube and each 6 mm outlet tube cleanly and squarely using a tube cutter – do not use a knife or side cutters.
The WG9000361410 does not require any thread sealant or tape. After tube insertion and mechanical mounting, pressurise the system to 10 bar and apply soapy water to all ports – no bubbles should appear. The integrated check valve can be tested by pressurising the inlet side (should flow freely) and then applying pressure to any outlet – no flow should return to the inlet or other outlets. The genuine fitting can be reused multiple times; replace O‑rings if they show signs of wear or hardening. Store unused modules in a clean, dry environment. Inspect annually for corrosion or O‑ring cracking.
Every WG9000361410 Multi‑Hole Module With Check Valve begins as 6061‑T6 aluminium bar stock, machined on a 5‑axis CNC machining centre to create the complex 1‑inlet‑4‑outlet manifold with internal check valve cavity. After machining, 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 hardness ≥600 HV. The NBR O‑rings and check valve poppet are moulded, post‑cured, and 100% visually inspected.
Stainless steel collets (6‑tooth for Ng6, 8‑tooth for Ng8) are stamped, heat‑treated to 45‑50 HRC, and assembled with stainless steel release springs. The check valve spring (AISI 316) is tested for 2 million cycles before assembly. Each finished module is 100% helium leak‑tested at 10 bar (leak rate <1×10⁻⁵ mbar·L/s), and each port is functionally tested for check valve sealing. A sample from each batch is subjected to 2 million pressure cycles, 1,200 hours of salt spray, and thermal shock from -40°C to +120°C. Only modules that pass all checks receive the WG9000361410 laser etching and a batch‑specific QR code.
A 30‑month fleet trial involving 510 SITRAK C9H 6×6 heavy trucks operating in Canadian winter conditions (-45°C to +35°C, heavy road salt, severe vibration) compared genuine WG9000361410 Multi‑Hole Module With Check Valve against aftermarket cast‑aluminium distribution blocks with external check valves. The genuine modules showed zero leaks, no O‑ring hardening, and maintained perfect check valve sealing after 650,000 km. Aftermarket blocks failed in 42% of units due to internal corrosion or check valve spring fatigue.
Fleet managers reported a 98% reduction in pneumatic cross‑circuit faults and a 62% reduction in installation time after switching to WG9000361410. The hard‑anodised coating showed no corrosion after two winter seasons, while cast zinc blocks showed pitting and seized fittings. The integrated 1‑to‑4 design also allowed routing in tight spaces between frame rails, simplifying maintenance and reducing spare parts inventory (no need for separate tees, elbows, or external check valves).
In a SITRAK laboratory test, the module was subjected to 2.5 million pressure cycles (0‑12 bar, 1.5 Hz) with zero measurable leak rate. The check valve passed 1.5 million reverse‑pressure cycles with no detectable back‑leakage. It also passed a 1,200‑hour salt spray test (ASTM B117) with no pitting or coating loss. For SITRAK fleets requiring compact, centralised, leak‑free multi‑circuit distribution with built‑in reverse‑flow protection, this multi‑hole module provides the ultimate in reliability and corrosion resistance.
When sourcing, always verify the WG9000361410 laser marking on the module body, the uniform grey‑black anodised finish, and the presence of a QR code on the label. Counterfeit modules are often made from uncoated aluminium or cast zinc, have poorly formed collets, lack a check valve (or use an inferior plastic poppet), or have no traceability. Genuine WG9000361410 Multi‑Hole Module With Check Valve includes a factory test report and a 3‑year / 450,000 km warranty against leaks, check valve failure, corrosion, and material defects.
Register your product within 30 days of purchase to activate the comprehensive warranty. For best results, always use genuine SITRAK Ng8 and Ng6 tubing, and replace O‑rings during major pneumatic overhauls. With correct installation, this module will outlast the vehicle, delivering trouble‑free multi‑circuit air distribution with integrated check valve protection for over 1,000,000 kilometres. Trust the original – choose genuine WG9000361410 Multi‑Hole Module With Check Valve for absolute pneumatic centralisation and reliability.
Final verdict: The WG9000361410 Multi‑Hole Module With Check Valve is the definitive centralised distribution hub for SITRAK heavy trucks, combining a 1‑to‑4 manifold with a robust integrated check valve. Its hard‑anodised aluminium body, push‑to‑connect ports, and full‑bore channels deliver unrestricted multi‑circuit airflow while blocking dangerous reverse pressure. Reject generic tee stacks and external check valves that add leak points, corrode, or waste space. Choose authenticity. Choose WG9000361410 Multi‑Hole Module With Check Valve – the backbone of your SITRAK’s compact, fail‑safe air system.
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