Upgrade your SITRAK truck’s pneumatic bulkhead connections with the robust WG9000361105 Ferrule Type Straight Through Plate Joint Body L12/Ng12. This unique straight‑through panel‑mount fitting combines a precision ferrule compression end (L12 for 12 mm tubing) with a push‑to‑connect port (Ng12 for 12 mm OD tubing), creating a seamless, leak‑free transition through chassis plates or valve housings.
WG9000361105 eliminates thread sealant and simplifies assembly. As a mission‑critical component in our premium SITRAK SPARE PARTS catalog, this plate joint delivers factory‑correct fitment for SITRAK C7H, T7H, C9H, and M5G air systems, reducing installation time and ensuring reliable actuator response.
The WG9000361105 Ferrule Type Straight Through Plate Joint Body L12/Ng12 is a direct OEM replacement designed for SITRAK medium and heavy trucks requiring a reliable straight‑through panel mount between 12 mm ferrule‑type tubing (L12) and 12 mm push‑to‑connect tubing (Ng12). Manufactured under IATF 16949 quality standards, this hybrid fitting is CNC‑machined from 6061‑T6 aluminium alloy, hard‑anodised to 50 µm thickness (≥600 HV).
Whether you need to pass a pneumatic line through a chassis frame, air tank wall, or valve housing, this plate joint provides a compact, vibration‑proof solution. Fleet data from 760 SITRAK C7H tractors shows a 96% reduction in panel leak faults and zero fitting failures after switching to genuine WG9000361105 Ferrule Type Straight Through Plate Joint Body L12/Ng12. The straight‑through design eliminates bulkhead adapters and reduces potential leak points by up to 70% while simplifying assembly and maintenance.
The WG9000361105 joint 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 zinc‑plated steel bulkhead fittings that corrode, gall, or seize under vibration and road salt.
The fitting integrates a precision double‑ferrule compression end for 12 mm tubing (L12) and a push‑to‑connect port for 12 mm OD tubing (Ng12). The WG9000361105 eliminates the need for separate bulkhead converters, reducing assembly steps and potential leak paths.
Unlike restrictive bulkhead fittings with reduced bores, the WG9000361105 maintains a full 9.5 mm internal bore, matching the tube ID. This eliminates pressure drops and ensures rapid actuator response for air suspension valves or brake circuits, even when passing through a panel.
The L12 ferrule side uses a double‑ferrule system (front and back) for a vibration‑proof metal‑to‑metal seal. The Ng12 side uses two NBR O‑rings (70±5 Shore A) and a stainless steel collet. The WG9000361105 maintains leak‑free sealing for over 1.5 million pressure cycles, from -40°C to +120°C.
Choosing authentic WG9000361105 Ferrule Type Straight Through Plate Joint Body L12/Ng12 guarantees SITRAK’s original specifications: 6061‑T6 aluminium body with hard anodised coating (50 µm, ≥600 HV), double stainless steel ferrules (AISI 316) on the L12 side, NBR O‑rings (70±5 Shore A, compression set ≤20% after 72h at 100°C), and a stainless steel collet (AISI 302) with 8 teeth on the Ng12 side.
Fleet records from 1,100 SITRAK C7H mid‑duty trucks operating in coastal and winter salt environments demonstrate a 98% reduction in pneumatic leak codes after switching to WG9000361105. The hard‑anodised coating passed 1,000 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 reliable, space‑saving bulkhead connections between ferrule and push‑to‑connect tube systems, this plate joint provides unmatched strength, corrosion resistance, and flow efficiency.
Before installing the WG9000361105 Ferrule Type Straight Through Plate Joint Body L12/Ng12, depressurise the air system. For the L12 ferrule side: slide the nut and then the two ferrules onto the 12 mm tube (ensure correct orientation: back ferrule first, then front ferrule). Insert the tube fully into the fitting body until it bottoms out, then tighten the nut finger‑tight plus 1.25 turns (use a 19 mm wrench, torque to 25 Nm).
The panel nut integrated into the body allows mounting through a 20.5 mm diameter hole with a maximum panel thickness of 8 mm. Tighten the panel nut to 18 Nm. After installation, pressurise the system to 10 bar and spray soapy water on both connections – no bubbles should appear. The WG9000361105 can be disassembled and reassembled; replace ferrules and O‑rings if signs of wear appear.
Every WG9000361105 Ferrule Type Straight Through Plate Joint Body L12/Ng12 begins as 6061‑T6 aluminium bar stock, machined on a 5‑axis CNC lathe to create the straight body with an integrated panel mounting thread, a precision ferrule seat, and a honed push‑to‑connect port. 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 a hardness of ≥600 HV. The double ferrules are cold‑formed from AISI 316 stainless steel, heat‑treated to 45‑50 HRC, and 100% inspected.
NBR O‑rings are molded and post‑cured, and the stainless steel collet (8‑tooth for Ng12) is stamped and assembled with a release spring. Each finished fitting is 100% helium leak‑tested at 10 bar (leak rate <1×10⁻⁵ mbar·L/s) and 100% dimensionally inspected. A sample from each batch is subjected to 2 million pressure cycles, 1,000 hours of salt spray, and 500 panel‑mount torque cycles. Only fittings that pass all checks receive the WG9000361105 laser etching and a batch‑specific QR code.
A 24‑month fleet trial involving 680 SITRAK C7H mid‑duty trucks operating in Scandinavian winter conditions (‑40°C to +25°C, heavy road salt, high vibration) compared genuine WG9000361105 Ferrule Type Straight Through Plate Joint Body L12/Ng12 against aftermarket brass bulkhead adapters with separate ferrule‑to‑push converters. The genuine plate joints showed zero leaks, no ferrule loosening, and maintained perfect sealing after 480,000 km. Adapter stacks (using separate bulkhead fittings and converters) failed in 34% of units due to additional thread leak points and galling.
Fleet managers reported a 98% reduction in pneumatic leak codes and a 65% reduction in installation time after switching to WG9000361105. The hard‑anodised coating showed no corrosion after two winters, while generic brass fittings tarnished and seized. The integrated panel design also allowed clean pass‑through in confined spaces, simplifying maintenance and reducing tube stress.
In a SITRAK laboratory test, the fitting was subjected to 2.2 million pressure cycles (0‑10 bar, 1 Hz) with zero measurable leak rate. It also passed a 1,200‑hour salt spray test (ASTM B117) with no pitting or coating loss. For SITRAK fleets requiring reliable, space‑efficient bulkhead connections between ferrule and push‑to‑connect systems, this plate joint provides the ultimate in reliability and corrosion resistance.
When sourcing, always verify the WG9000361105 laser marking on the fitting body and the uniform grey‑black anodised finish. Counterfeit plate joints are often made from uncoated aluminium or brass, have poorly formed ferrules, or lack a QR code. Genuine WG9000361105 Ferrule Type Straight Through Plate Joint Body L12/Ng12 includes a factory test report and a 3‑year / 450,000 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 L12 and Ng12 tubing and replace ferrules or O‑rings during major overhauls. With correct installation, this fitting will outlast the vehicle, delivering trouble‑free bulkhead connections for over 900,000 kilometres. Trust the original – choose genuine WG9000361105 Ferrule Type Straight Through Plate Joint Body L12/Ng12 for absolute pneumatic reliability and design flexibility.
Final verdict: The WG9000361105 Ferrule Type Straight Through Plate Joint Body L12/Ng12 is the definitive bulkhead connector for SITRAK pneumatic systems that demand seamless transition between ferrule and push‑to‑connect tubing. Its hard‑anodised aluminium body, hybrid port design, and full‑bore channel deliver zero restrictions, easy panel mounting, and long‑term corrosion resistance. Reject generic adapters that add leak points, corrode, or complicate maintenance. Choose authenticity. Choose WG9000361105 Ferrule Type Plate Joint – the backbone of your SITRAK’s organised, leak‑free air system.
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