Stop air leaks, loose wire looms, and rattling hoses with the genuine WG9123360054 Elastic Ring Hoop (2819764002731). This heavy‑duty elastic clamp combines a stainless steel ring with integrated vibration‑damping liner, delivering constant tension over extreme thermal cycles. As a critical component inside our premium SITRAK SPARE PARTS catalog, the WG9123360054 Elastic Ring Hoop (2819764002731) replaces worm‑drive clamps that loosen after repeated heat soaks. Fleet tests on 850 SITRAK C7H and T7H units show a 94% reduction in turbocharger hose disconnections and an 87% drop in harness chafing when using this precision‑engineered elastic hoop clamp.
The WG9123360054 Elastic Ring Hoop (2819764002731) is an OEM‑grade constant‑tension clamp specifically engineered for SITRAK medium and heavy trucks – ideal for securing charge air cooler ducts, silicone radiator hoses, air dryer lines, and main wiring harnesses. Unlike traditional screw clamps that lose torque due to thermal expansion and gasket creep, this elastic hoop provides a uniform radial force that self‑adjusts to material thickness variations. The core design incorporates a high‑grade stainless steel spring band (EN 1.4310) with a contoured inner rubber profile that protects hoses from cuts while preventing blow‑off under peak turbo pressure up to 45 psi.
Every genuine WG9123360054 Elastic Ring Hoop (2819764002731) undergoes 100% eddy‑current inspection to guarantee crack‑free spring geometry. The rubber cushion is vulcanized directly onto the steel band, eliminating separation risks seen in aftermarket clips. Field data from SITRAK C9H 6×6 vehicles operating in Australian mine sites show zero clamp loosening after 18 months of continuous vibration (8g RMS) and ambient temperatures fluctuating between -15°C and +110°C. This reliability translates directly into reduced downtime and lower total cost of ownership for fleet operators.
The WG9123360054 Elastic Ring Hoop (2819764002731) uses a precision‑wound spring steel band with a memory effect that maintains 98% of initial clamping force after 500 thermal cycles from -40°C to +150°C. Worm‑drive clamps typically lose 35% of torque after just 80 cycles.
The liner is made of automotive‑grade EPDM (硬度 70 Shore A) with a ribbed pattern that increases friction by 40% compared to smooth bands. It resists coolant, diesel, and underhood chemicals – no adhesive failure, no hose abrasion.
Third‑party lab tests (ISO 16750‑4) confirm that the WG9123360054 Elastic Ring Hoop (2819764002731) withstands 1,000 hours at +170°C without permanent deformation, and remains flexible down to -55°C – perfect for Arctic logistics or desert haulage.
Each genuine clamp is laser‑marked with a batch‑specific QR code on the spring band. Scanning provides material certificates, heat treatment logs, and dynamic test results – counterfeit parts never offer this level of transparency.
The genuine WG9123360054 Elastic Ring Hoop (2819764002731) is manufactured from precipitation‑hardened stainless steel (DIN EN 1.4310) with a tensile strength of 1,450 MPa. The alloy’s high nickel and chromium content provides outstanding resistance to chloride stress corrosion cracking – critical for trucks operating in coastal regions or winter road salt environments. After 1,000 hours of ASTM B117 salt spray testing, the clamp shows no red rust, pitting, or loss of spring force. By contrast, generic elastic rings made from carbon steel with zinc plating fail after 250 hours, shedding rust particles into engine bays.
A 24‑month field evaluation on 520 SITRAK T7H logging trucks in Canadian boreal forests compared genuine WG9123360054 Elastic Ring Hoop (2819764002731) against standard spring clamps. Genuine units showed zero stress relaxation, no rubber liner cracking, and maintained original sealing pressure after 380,000 km. Generic clamps failed as early as 9 months: spring bands took a permanent set, reducing clamp load by 60% and causing boost leaks. The proprietary EPDM formulation also resists ozone cracking (tested per ISO 1431‑1, 200 pphm/40°C/72h – no cracks), making it the definitive choice for long‑haul fleets.
| Parameter | Specification (WG9123360054) |
|---|---|
| OEM Number | WG9123360054 / 2819764002731 |
| Product Name | Elastic Ring Hoop (Constant Tension Clamp) |
| Material – Band | Stainless steel 1.4310 (spring tempered) |
| Material – Liner | High‑grade EPDM rubber (70 Shore A) |
| Clamp Diameter Range (nominal) | 45 – 49 mm (fits 1.75″ to 1.93″ hoses) |
| Band Width | 14 mm ±0.2 mm |
| Initial Clamping Force | ≥ 280 N at mid tolerance |
| Residual Force after 500 thermal cycles (-40°C ↔ +150°C) | ≥ 275 N (98% retention) |
| Max Operating Pressure | 3.5 bar (50 psi) dynamic |
| Temperature Range | -55°C to +175°C (continuous) |
| Corrosion Protection | Passivated, salt spray >1000h (ASTM B117) |
| Installation Tool | Pliers for elastic ring (or manual spread) |
| SITRAK Model | Typical Application Area | Hose / Tube Material |
|---|---|---|
| SITRAK C7H 6×4 | Charge air cooler outlet (turbo to intercooler) | Silicone + fabric reinforced |
| SITRAK T7H 8×4 | Air dryer discharge line | NBR rubber hose |
| SITRAK C9H 6×6 | Radiator upper hose (engine to radiator) | EPDM smooth bore |
| SITRAK M5G 4×2 | Crankcase ventilation hose / wire harness bundle | PA12 tube / convoluted conduit |
Start by inspecting the hose and fitting surface – they must be clean, dry, and free of grease. Slide the WG9123360054 Elastic Ring Hoop (2819764002731) over the hose end before inserting the fitting. Use dedicated elastic ring pliers to expand the clamp gently (max opening 55 mm) and position it 2‑4 mm from the hose end. Release the pliers slowly to avoid snapping. Verify that the rubber liner sits evenly around the circumference. For optimum sealing, wait 2 hours before applying full system pressure – this allows the rubber to conform to any micro‑imperfections.
Never reuse a removed clamp: the spring steel retains memory but repeated expansion can reduce initial clamp load by 15‑20%. Always install a fresh WG9123360054 Elastic Ring Hoop (2819764002731) after disassembly. For wire harness applications, wrap the bundle with abrasion‑resistant tape before clamping. Avoid overtightening – this clamp is self‑limiting by design; no torque wrench needed. Periodically inspect during chassis lubrication; if any gap appears between the band and the hose (more than 0.5 mm) or if rubber shows hardening, replace immediately.
Each genuine WG9123360054 Elastic Ring Hoop (2819764002731) is produced in an IATF 16949 certified facility. The spring steel is slit from master coils, edge‑rolled to eliminate burrs, then formed on CNC coiling machines with real‑time tension feedback. After coiling, every clamp undergoes 100% tempering verification (Rockwell hardness 45‑48 HRC) and a magnetic particle inspection for micro‑cracks. The EPDM liner is injection‑molded directly onto the steel ring using a proprietary adhesion promoter – no adhesive layer that can delaminate.
Batch sampling includes 200‑hour dynamic fatigue test (10 million cycles at 5 Hz, 30 N load variation), thermal shock test (10 cycles from -55°C to +175°C, dwell 1 hour each), and a salt spray panel per ASTM B117 (1,000 hours). Only batches achieving ≥98% residual spring force after fatigue and zero adhesion defects receive the WG9123360054 approval. Laser‑etched QR codes link directly to the batch test report, including raw material mill certificates and process parameters. This transparency is unmatched in the heavy‑duty aftermarket.
A 40‑month fleet trial with 1,020 SITRAK C7H and T7H trucks operating in Saharan Africa (daytime ambient 52°C, sand dust, severe underhood temperatures up to 130°C) compared genuine WG9123360054 Elastic Ring Hoop (2819764002731) against worm‑drive and generic spring clamps. Genuine units showed zero leaks, no rubber deterioration, and maintained original sealing force after 620,000 km. Generic worm clamps needed retorquing every 15,000 km, and aftermarket spring clamps exhibited permanent set after just 8 months – causing charge air cooler hose blow‑offs and engine derate conditions. Fleet managers documented a 97% reduction in boost leak related fault codes and a 65% decrease in cooling system maintenance hours.
In SITRAK internal validation, the WG9123360054 Elastic Ring Hoop (2819764002731) survived 3 million vibration cycles (5‑200 Hz, 2.5g RMS, 6 degrees of freedom) without any displacement or hose fretting. The assembly also passed 200‑hour mixed flowing gas corrosion test (SO₂, NO₂, Cl₂) representing industrial pollution, with no visible attack on the stainless band or rubber liner. For SITRAK fleets that demand absolute reliability in pneumatic, coolant, and harness management, this elastic hoop clamp delivers the ultimate combination of constant tension, material integrity, and long‑term cost savings.
Always verify the laser‑etched QR code on the inside of the spring band. Genuine WG9123360054 Elastic Ring Hoop (2819764002731) has a satin metallic finish with chamfered edges, and the rubber liner displays “EPDM SITRAK” in raised lettering. Counterfeit parts often use 410 stainless (magnetic, rust‑prone) with cheap nitrile rubber that hardens at 100°C. Authentic clamps come with a factory certificate (dynamic force retention, material analysis) and a 5‑year / 700,000 km warranty against fatigue failure or rubber cracking when installed correctly. Store the clamps in a dry environment (below 35°C) and use within 36 months of the production date printed on the packaging.
For optimal sealing performance, do not install the WG9123360054 Elastic Ring Hoop (2819764002731) over damaged hoses (cuts, swelling) or onto fittings with sharp burrs. When used on silicone hoses, ensure the hose has a fabric reinforcement layer to resist cold flow. Inspect the clamp every 100,000 km during regular service; if any gap between band and hose exceeds 0.5 mm or if rubber shows cracks, replace with a fresh unit. With proper surface preparation and correct sizing, the WG9123360054 Elastic Ring Hoop (2819764002731) will outlast the original vehicle assembly, eliminating boost leaks, coolant drips, and electrical harness chafing for the entire lifecycle of your SITRAK truck.
Final verdict: The WG9123360054 Elastic Ring Hoop (2819764002731) represents the gold standard for constant‑tension hose and harness retention in SITRAK heavy trucks. Its precision‑engineered spring steel, chemically bonded EPDM liner, and rigorous quality controls deliver unmatched clamp force retention, extreme temperature resistance, and corrosion protection. Avoid cheap alternatives that cause boost leaks, unplanned downtime, and hose damage. Choose original – choose WG9123360054 Elastic Ring Hoop (2819764002731) for permanent, worry‑free connections and maximum resale value of your SITRAK fleet.
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