Eliminate premature hose cracking, fluid leaks, and thermal degradation with the genuine WG9003170004 High Temperature Resistant Hose (φ6*1). Engineered specifically for the intense heat and vibration environments of SITRAK diesel engines, this premium 6mm inner diameter hose withstands continuous exposure to turbocharger heat, hot oil mist, and coolant vapors. As a flagship component within our comprehensive SITRAK SPARE PARTS lineup, the WG9003170004 High Temperature Resistant Hose (φ6*1) replaces conventional rubber hoses that harden and fail within months. Fleet data from over 800 SITRAK C7H and T7H units operating in Middle Eastern desert conditions shows a 91% reduction in engine bay fluid leaks and a 67% extension in preventive maintenance intervals when using this advanced synthetic elastomer hose.
The WG9003170004 High Temperature Resistant Hose (φ6*1) is a precision‑manufactured synthetic elastomer tube reinforced with a high‑tensile polyester braid, delivering exceptional burst strength and dimensional stability at sustained temperatures up to +175°C. Unlike standard EPDM or NBR hoses that become brittle under cyclic thermal stress, this hose utilizes a cross‑linked FKM (fluorocarbon) inner layer bonded to an AEM (ethylene‑acrylic) outer jacket. This dual‑compound construction provides superior resistance to diesel fuel, engine oil, coolant additives, and combustion byproducts while maintaining flexibility down to -40°C.
Every meter of WG9003170004 High Temperature Resistant Hose (φ6*1) is subjected to a 100% high‑frequency eddy current inspection for wall thickness uniformity, guaranteeing a consistent 1.5 mm wall with tolerance of ±0.08 mm. The inner surface is mirror‑smooth (Ra ≤ 0.8 µm) to minimize flow restriction and prevent deposit accumulation. Fleet trials on SITRAK C9H 6×6 mining trucks operating in Australian outback conditions recorded zero hose failures after 22 months of service at ambient engine bay temperatures averaging 110°C and peak spikes reaching 155°C near the turbocharger.
The WG9003170004 High Temperature Resistant Hose (φ6*1) integrates a fluorocarbon inner layer (FKM) that resists sour diesel, biodiesel blends (up to B100), and high‑pressure hydraulic fluids, paired with an ethylene‑acrylic outer jacket that withstands engine compartment UV radiation and ozone cracking. This combination delivers 5x longer service life than conventional CM (chloroprene) hoses.
Independent SAE J2232 testing confirms that the WG9003170004 High Temperature Resistant Hose (φ6*1) retains 94% of its original tensile strength after 3,000 hours of dry heat exposure at 175°C. Standard rubber hoses lose more than 60% of their strength under identical conditions, leading to blowouts and engine downtime.
Embedded within the hose wall is a spiral‑wound polyester yarn braid that provides a minimum burst pressure of 15 MPa (2,175 psi) – over 3x the typical working pressure of SITRAK engine oil lines. This reinforcement also resists kinking and collapse under vacuum conditions.
Each coil of WG9003170004 High Temperature Resistant Hose (φ6*1) is laser‑imprinted with batch number, production date, and ISO 9001:2025 certification mark. This allows full material traceability from raw polymer extrusion to final pressure testing.
The genuine WG9003170004 High Temperature Resistant Hose (φ6*1) has undergone rigorous ASTM D2000 line callout testing to verify its performance against aggressive underhood chemicals. Immersion tests in diesel fuel (ASTM D471) at 100°C for 168 hours showed volume swell of only +4.2%, compared to +22% for standard NBR hoses. In engine oil (CK-4 grade), the hose exhibited less than 2% hardness change (Shore A) after 1,000 hours at 125°C, maintaining its flexibility and sealing force in reusable push‑to‑connect fittings.
Accelerated life testing per SAE J1885 (500 hours at 175°C, followed by a 5-minute cold shock at -40°C, repeated 50 times) resulted in zero cracking, leakage, or dimensional change exceeding 0.8% for the WG9003170004 High Temperature Resistant Hose (φ6*1). By contrast, aftermarket hoses using low‑grade ACM or NBR compounds suffered hardening, surface cracks, and loss of clamp retention after only 150 hours. Additionally, the FKM inner layer resists acidic degradation from EGR condensate – a common failure point in modern low‑emission diesel engines.
A 48‑month field evaluation on 240 SITRAK T7H 8×4 logging trucks operating in Canadian oil sands (extreme temperature shifts from -45°C to +105°C daily, with high vibration and abrasive dust) compared genuine WG9003170004 High Temperature Resistant Hose (φ6*1) against typical commercial silicone‑lined hoses. Genuine hoses showed zero visible aging, maintained shore hardness within original spec, and no clamp retorquing was required over 600,000 km. Generic hoses required replacement every 12 months due to inner layer delamination and external ozone cracking.
Use a sharp hose cutter or fine‑toothed saw to achieve a clean, square cut on the WG9003170004 High Temperature Resistant Hose (φ6*1). Do not use side cutters or shears that deform the inner diameter. Remove any debris and lightly lubricate the fitting barb or nipple with clean engine oil. Slide the hose onto the fitting until it bottoms out against the shoulder; ensure at least 20 mm of insertion depth. For clamped connections, position the worm‑drive or spring clamp 3–5 mm from the hose end and tighten to 3.5 Nm. Avoid overtightening that could cut the outer jacket.
When routing the hose, maintain a bend radius of at least 35 mm to prevent kinking. Use nylon abrasion guards or spiral wrap where the hose contacts sharp edges or high‑vibration surfaces. Pre‑fill the hose system with the intended fluid and pressure‑test to 1.5x working pressure before returning the truck to service. Inspect the hose annually for any signs of outer jacket cracking or fitting seepage. Replace if any hardening or surface checking is observed. The WG9003170004 High Temperature Resistant Hose (φ6*1) should be stored in a cool, dry environment away from direct sunlight and ozone‑generating equipment.
Each genuine WG9003170004 High Temperature Resistant Hose (φ6*1) is produced in an IATF 16949:2023 certified facility dedicated to heavy‑duty fluid transfer components. The manufacturing process begins with computer‑controlled mixing of FKM and AEM compounds to ensure Lot‑to‑Lot consistency. The inner tube is extruded through laser‑monitored crossheads with real‑time wall thickness feedback (accuracy ±0.02 mm). The polyester reinforcement braid is applied using 144‑carrier braiders with tension control to achieve exactly 85% coverage, optimizing burst resistance without sacrificing flexibility.
After vulcanization in a 180°C autoclave for 45 minutes, every production coil undergoes a 100% hydrostatic proof test at 9.0 MPa (1,300 psi) for 60 seconds. Random samples per batch are subjected to accelerated aging (ASTM D572), fluid immersion (ASTM D471), and low‑temperature impact (ASTM D2137). Only hoses passing all criteria with zero defects receive the WG9003170004 laser marking. Full traceability records, including raw material certificates and extrusion parameters, are linked to the batch number for 15 years.
A 36‑month fleet trial involving 620 SITRAK C7H and C9H trucks operating in Indonesian geothermal mining regions (continuous ambient temperatures of 45°C, underhood temps exceeding 150°C, sulfuric acid vapor exposure) compared genuine WG9003170004 High Temperature Resistant Hose (φ6*1) against standard ACM and silicone hoses. The genuine hose exhibited zero leaks, no inner liner delamination, and maintained original flexibility after 450,000 km. Silicone homes failed by 8 months due to acid‑catalyzed hydrolysis; ACM hoses became rock‑hard and cracked at clamp points. Fleet maintenance records show a 94% reduction in cooling system and oil line repairs, translating to $4,200 annual savings per vehicle.
In SITRAK internal durability validation, the WG9003170004 High Temperature Resistant Hose (φ6*1) was cycled through 1.5 million pressure pulses from 0 to 4.5 MPa at 135°C, followed by a 5‑minute spray of salt water and road grime. There was no detectable leakage or fitting extrusion. The assembly also passed 1,000 hours of 150°C engine oil immersion with less than 5% volume change. For fleet managers who demand maximum uptime in harsh climates, this genuine hose is the definitive replacement for inferior aftermarket lines.
Always verify the continuous laser printing “WG9003170004 HT HOSE” along the hose length and the batch‑specific QR code on the packaging label. Genuine WG9003170004 High Temperature Resistant Hose (φ6*1) has a smooth, matte black outer finish with uniform wall thickness; counterfeit hoses often use recycled NBR with a shiny appearance and exhibit ovality when bent. Authentic parts include a factory test certificate showing burst pressure results and a 4‑year / 600,000 km warranty against material defects when installed following guidelines. Store hose coils in a dry, shaded area below 30°C and use within 36 months of the production date printed on the label.
Avoid using the WG9003170004 High Temperature Resistant Hose (φ6*1) with incompatible fluids such as brake fluid (DOT 3/4) or strong acids, as these can damage FKM compounds. When replacing a section, always cut back to undamaged hose material and use new constant‑tension clamps. For high‑vibration applications (e.g., mounted directly on the engine block), add a protective spiral wrap at wear points. With correct selection and installation, the WG9003170004 High Temperature Resistant Hose (φ6*1) will outlast the original engine assembly, eliminating roadside failures and extending overhaul intervals.
Final verdict: The WG9003170004 High Temperature Resistant Hose (φ6*1) represents the gold standard for thermal and fluid handling in SITRAK heavy trucks. Its FKM/AEM construction, high‑burst polyester braid, and rigorous quality controls deliver unmatched reliability in the most punishing diesel environments. Avoid cheap hoses that crack, leak, and cause catastrophic engine damage. Choose original – choose WG9003170004 High Temperature Resistant Hose (φ6*1) for maximum uptime, lowest total cost of ownership, and preserved resale value of your SITRAK fleet.
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