

The Shacman X5000 Cabin Gas Device is a genuine OEM pneumatic fitting kit designed for the cab tilting and gas-assisted system of X5000 trucks. It includes hexagon thin nut, cutting sleeve straight joint, Voss plug‑in threaded joint, flat washer, and spring washer. These components ensure leak‑free connections for the cabin gas cylinder. The Shacman X5000 Cabin Gas Device restores proper cab tilt function and prevents gas loss, keeping drivers safe and efficient during maintenance.
The Hexagon Thin Nut (Galvanized) (Part Q351C12T15) is a low‑profile M12x1.5 nut with a height of only 6mm. It is made from carbon steel grade 8 and hot‑dip galvanized (25μm zinc coating) for 500h salt spray resistance. The thin design allows it to lock against another nut or to fit into tight spaces where a standard nut would be too tall. It is used to secure the Voss plug‑in threaded joint or cutting sleeve straight joint onto the cab gas device mounting bracket. Torque specification: 25 Nm. Weight: 0.012 kg. Replace if threads are damaged or if the galvanized layer is worn.
M12x1.5 | Grade 8 | Hot‑dip galvanized | Low profile
The Cutting Sleeve Straight Joint (Part 190003559472) is a compression fitting for 12mm OD nylon or steel tubing. It consists of a brass body, a hardened steel cutting ring, and a captive nut. When tightened, the cutting ring bites into the tube, creating a gas‑tight seal up to 20 bar. The joint has a 1/4″ BSP thread on the other end. It is designed for the cabin gas system, connecting the pneumatic cylinder to the supply line. Maximum operating pressure: 15 bar (working), 30 bar (burst). Temperature range: -40°C to +100°C. Supplied pre‑assembled. Always use a new cutting ring when replacing the fitting.
Brass body | 12mm tube | 15 bar working | Cutting ring seal
The Voss Plug-In Threaded Joint (203) (Part 81.98181.6046) is a quick‑connect pneumatic coupling for 8mm push‑in tubing. Manufactured under license from Voss, it features a one‑hand push‑to‑connect mechanism. The joint has an M12x1.5 external thread and includes a captive O‑ring (NBR 70 Shore). Release collar allows tool‑free disconnection. Operating pressure: 0‑12 bar. Temperature: -20°C to +80°C. The housing is nickel‑plated brass, and the release sleeve is black anodised aluminum. This coupling is used for the cab tilt gas circuit, enabling rapid connection/disconnection of the air line during service. Pull force to disconnect: 80 N. Two units are supplied per assembly.
Push‑to‑connect | 8mm tube | 12 bar | Quick release
The Flat Washer (Part Q401B12) is a hardened steel washer with an inner diameter of 13mm, outer diameter of 24mm, and thickness of 2.5mm. It is zinc‑plated and passivated. Used under the hexagon thin nut to distribute clamping load and prevent galling of the aluminium bracket. Hardness: HV 200-250. Two washers are supplied. Replace if bent or corroded.
13x24x2.5mm | Zinc plated | Hardened | Load distribution
The Spring Washer 190003931142 (Part Q40312) is a helical spring lock washer for M12 bolts. Made from spring steel (DIN 127), size 12mm. It provides prevailing torque and prevents loosening under vibration. The washer is zinc‑flaky coated (Geomet) for 720h salt spray resistance. Used together with the flat washer and thin nut to secure the Voss joint. Torque retention tested to 1,500 vibration cycles. Always replace with a new washer when disassembling.
M12 | Spring steel | Locking action | Geomet coated
| Part Number | Part Name |
|---|---|
| Q351C12T15 | Hexagon Thin Nut(Galvanized) |
| 190003559472 | Cutting Sleeve Straight Joint |
| 81.98181.6046 | Voss Plug-In Threaded Joint (203) |
| Q401B12 | Flat Washer |
| Q40312 | Spring Washer 190003931142 |
Complete OEM pneumatic fitting set for the Shacman X5000 cabin gas device.
✔️ 100% OEM Fit & Leak‑Free Reliability – Every nut, joint, washer, and coupling matches original Shacman specifications. Direct replacement for worn or leaking gas fittings. Restores cab tilt cylinder function and prevents sudden drop hazards.
🔧 High Pressure & Vibration Resistance – Cutting sleeve joint rated 15 bar, Voss coupling 12 bar. Spring washer and thin nut combination resists loosening under chassis vibration. Ideal for pneumatic systems on rough roads.
🛡️ Corrosion Protection & Long Life – Hexagon nut hot‑dip galvanized; Voss joint nickel‑plated brass; spring washer Geomet coated. All components pass 720h salt spray. Brass and steel parts resist moisture, road salt and chemicals.
🚛 Complete Kit – Everything in One Box – Includes thin nut, cutting sleeve joint, Voss plug‑in joint, flat washer, and spring washer. One order delivers all you need to overhaul the cabin gas device connections. 12‑month unlimited‑mileage warranty. Bulk pricing for fleets.
Hexagon thin nut: M12x1.5, height 6mm, proof load 30 kN. Cutting sleeve joint: brass, 12mm tube, 15 bar, thread 1/4″ BSP. Voss coupling: 8mm tube, 12 bar, M12x1.5 thread, push‑to‑connect. Flat washer: 13x24x2.5mm, HV 200. Spring washer: M12, DIN 127, spring steel. Assembly working pressure: 10 bar (safe). The Shacman X5000 Cabin Gas Device meets pneumatic safety standard ISO 4414. Each batch is pressure‑tested at 20 bar for 5 minutes with zero leakage.
Temp Range
Fittings: -40°C to +100°C. O‑ring: -20°C to +80°C.
Applications
Shacman X5000 cab tilt gas cylinder, pneumatic suspension, and auxiliary air systems.
Certifications
IATF 16949, ISO 9001, ISO 4414 (pneumatic safety).
1. Clean all threads and tube ends. 2. Install cutting sleeve joint onto tube, tighten nut to 25 Nm. 3. Push 8mm tube into Voss coupling until it clicks. 4. Assemble flat washer, spring washer, and thin nut onto the joint stud. Torque to 28 Nm. 5. Test system at 10 bar for leaks. Replace any damaged O‑rings or cutting rings. Never reuse spring washer after removal.
Hexagon thin nut: carbon steel, hot‑dip galvanized. Cutting sleeve joint: forged brass, machined, cutting ring case hardened. Voss coupling: brass body, stainless steel spring, NBR O‑ring. Flat washer: hardened C67S steel. Spring washer: 65Mn spring steel, Geomet coating. All components are 100% dimension checked. Leak tested on sample basis. Each kit is packed in a sealed plastic bag with desiccant.
Leaking cabin gas device fittings cause slow or incomplete cab tilting, risking injury during maintenance. Replacing with genuine Shacman X5000 Cabin Gas Device ensures fast, reliable cab lift. The kit includes all necessary hardware, reducing downtime from hunting for individual washers or nuts. Lower total cost of ownership compared to aftermarket mixed fittings.
Volume discounts for 10+ kits. Download catalog or request quotation via buttons above. Express shipping from regional centers.
Audible hissing when cab is tilted, slow cab raising, oil stains around joints, visible corrosion on nuts or washers, cracked O‑ring on Voss coupling. Replace immediately with Shacman X5000 Cabin Gas Device. Do not reuse spring washers or cutting sleeves.
Inspect every 100,000 km. Re‑tighten thin nut to 28 Nm. Replace all washers if any sign of flattening.
Generic thin nuts are often unplated and rust quickly. Cutting sleeve joints use cheap zinc alloy that cracks under pressure. Voss‑style copies lack the precision O‑ring seat, causing leaks. Our genuine Shacman X5000 Cabin Gas Device uses galvanized nuts, brass cutting joints, and authentic Voss couplings. Trust original for safety and reliability.
Final recommendation: Always replace the entire cabin gas device fitting set when rebuilding the pneumatic tilt system. The Shacman X5000 Cabin Gas Device provides all genuine components for a leak‑free, safe cab lift. Trust Shacman for original quality and driver safety.