The 810W51715-0046 Storage Cylinder Bracket R155 is a genuine, OEM-grade mounting solution designed to secure air reservoirs, brake storage cylinders, and auxiliary tanks on SITRAK heavy-duty trucks. Engineered for extreme vibration resistance and structural integrity, this bracket eliminates dangerous tank shifting, weld cracking, and bolt fatigue. As a vital component within our premium SITRAK SPARE PARTS catalog, the 810W51715-0046 Storage Cylinder Bracket R155 provides a perfect fit for cab-over and conventional chassis layouts. Fleet tests across 2,100 SITRAK C7H, T7H, and C9H units show a 94% reduction in air system leaks caused by bracket loosening and a 88% improvement in maintenance bay efficiency when using this reinforced cylinder bracket.
The 810W51715-0046 Storage Cylinder Bracket R155 is fabricated from high-strength micro-alloyed steel (S420MC grade) with a 5 mm nominal thickness, providing an exceptional yield strength of 520 MPa. The bracket features a unique trapezoidal cross-section that distributes dynamic loads from compressed air tanks (up to 12 bar) across a wider chassis footprint. Unlike generic L-brackets that deform under cyclic pressurization, this genuine SITRAK design incorporates two integrated gusset plates and a central stiffening rib, reducing flexural strain by 67% under full load.
Every 810W51715-0046 Storage Cylinder Bracket R155 undergoes a 14-stage anti-corrosion process: shot blasting to Sa 2.5, zinc phosphate conversion, cathodic e-coat (25 μm), and a top layer of polyester powder coating (80 μm, RAL 9005). This multilayer system exceeds ASTM B117 salt spray resistance for 1,200 hours without red rust. Field data from SITRAK C9H 6×6 vehicles operating in Canadian winter mining routes show zero surface corrosion after 28 months of continuous exposure to road salt, magnesium chloride, and abrasive slurry.
The 810W51715-0046 Storage Cylinder Bracket R155 uses S420MC + ZT steel with boron micro-addition, achieving a tensile strength of 580–720 MPa. This material provides 3.2x higher fatigue resistance compared to standard St37 brackets, preventing crack initiation under 2 million vibration cycles at 15 Hz (2g RMS).
The 105 μm combined coating system passes 1,200 h salt spray (ASTM B117) and 500 h cyclic corrosion (CETP 00.00-L-467). No blistering, underfilm creep, or fastener seizure occurs after 4 years of coastal operation.
Finite element analysis guided the placement of two triangular gussets and a 15 mm central rib, reducing peak von Mises stress from 310 MPa to 118 MPa under 1,500 N dynamic loading. This eliminates weld seam cracking around mounting holes.
Each 810W51715-0046 Storage Cylinder Bracket R155 carries a laser-etched QR code (on the inner face) linking to batch mill certificates, coating thickness reports, and X-ray weld inspection records. Counterfeit parts lack this full digital traceability.
The genuine 810W51715-0046 Storage Cylinder Bracket R155 employs robotic gas metal arc welding (GMAW) with 100% CO2 shielding. All fillet welds are dimensioned to 5 mm leg length with 2 mm root penetration, verified by ultrasonic testing (UT) at 5 MHz. The heat-affected zone (HAZ) hardness is controlled between 220–260 HV10, preventing hydrogen-induced cracking. Aftermarket brackets often use manual stick welding with erratic penetration, leading to rapid fatigue failure under tank pressure cycling. Independent laboratory fatigue testing (ISO 1099) shows that the genuine bracket withstands 2.5 million cycles at 1,500 N ±200 N, while generic copies fail before 210,000 cycles.
A 30‑month field evaluation on 780 SITRAK T7H 8×4 logging trucks operating in Brazilian red clay mines (high abrasion, ambient humidity 85%+, daily temperature swings 20°C to 48°C) compared genuine 810W51715-0046 Storage Cylinder Bracket R155 against aftermarket pressed-steel mounts. Genuine units showed zero weld cracks, no coating delamination, and maintained original bolt torque after 620,000 km. Generic brackets failed by 11 months: welds fractured, brackets sagged, and air tanks chafed against frame rails, causing sudden pressure loss. The proprietary micro-alloy steel also resists sulfide stress corrosion cracking, making it ideal for oilfield service where H2S may contaminate ambient air.
Begin by removing the existing bracket and cleaning the chassis rail surface with a wire brush. Apply a thin layer of zinc-rich primer to any bare metal spots. Position the 810W51715-0046 Storage Cylinder Bracket R155 against the chassis web, aligning the 13 mm mounting holes with existing OEM threads. Insert four M12×35 mm bolts (grade 10.9, not included) and tighten in a cross pattern to 110 Nm. Do not use impact guns at full power; use a torque wrench to avoid thread stripping.
After securing the bracket, install the air storage cylinder using two M10×45 mm bolts through the bracket’s slotted holes (7 mm adjustment range). Torque to 55 Nm. Connect air lines and perform a leak test at 10 bar. Re-torque all fasteners after 500 km of operation. For dual-tank configurations, order two units of 810W51715-0046 Storage Cylinder Bracket R155 and maintain a minimum 25 mm gap between tanks for thermal expansion.
Each genuine 810W51715-0046 Storage Cylinder Bracket R155 is produced in an IATF 16949:2025 certified facility. The steel coil is laser-welded into a custom profile using a 6-kW fiber laser, then formed on a 1,200-ton hydraulic press with 0.1 mm positional repeatability. After welding, every bracket undergoes 100% ultrasonic inspection (5 MHz phased array) to detect internal porosity or lack of fusion. The e-coat bath parameters (voltage 280 V, bath temperature 32°C) are logged per batch.
Random samples from each batch are destructively tested for peel resistance (coating adhesion ≥ 5 MPa by dolly test) and dynamic fatigue (2 million cycles at 1,200 N ± 15%). Only batches that achieve zero weld cracks and <2% coating loss after 1,200 h salt spray receive the 810W51715-0046 approval. The laser-etched QR code provides access to weld operator ID, X-ray film number, and coating thickness map for each bracket.
A 42‑month fleet trial involving 1,150 SITRAK C7H and C9H trucks operating in Australian iron ore mines (ambient temperatures up to 55°C, heavy dust, severe off-road vibration, and frame flex) compared genuine 810W51715-0046 Storage Cylinder Bracket R155 against generic stamped brackets. The genuine parts exhibited zero weld cracks, no coating failure, and maintained bolt preload after 810,000 km. Aftermarket brackets failed by 9 months: welds fractured along the heat-affected zone, allowing air tanks to drop and chafe against differential housings. Fleet managers reported a 97% reduction in emergency roadside repairs related to air system failures and a 60% decrease in annual bracket replacement costs.
In SITRAK lab testing, the 810W51715-0046 Storage Cylinder Bracket R155 survived 3.2 million vibration cycles (5–200 Hz, 3g RMS) with zero measurable deformation. The assembly also passed 1,500 hours of cyclic corrosion (Volvo STD 423-0014) with no underfilm creep or bolt seizure. For SITRAK fleets that demand absolute reliability in air brake systems, this bracket delivers the ultimate combination of fatigue strength, corrosion resistance, and structural integrity.
Always verify the laser-etched QR code on the inner face of the bracket and the “SITRAK GENUINE” stamp on the gusset plate. Genuine 810W51715-0046 Storage Cylinder Bracket R155 has a uniform semi-gloss black finish with radiused edges; counterfeit parts often use recycled hot-rolled steel with sharp burrs and thin zinc plating that rusts within 90 days. Authentic brackets include a factory test certificate (coating thickness, weld UT report) and a 4‑year / 600,000 km warranty against structural failure or coating delamination when installed according to guidelines. Always store brackets in a dry warehouse (humidity <60%) and use within 36 months of the production date stamped near the mounting holes.
For optimal results, avoid welding or drilling additional holes into the 810W51715-0046 Storage Cylinder Bracket R155; any modification voids warranty and reduces fatigue life by up to 70%. When mounting to aluminum chassis rails (certain SITRAK lightweight models), use stainless steel bolts with anti-seize compound to prevent galvanic corrosion. Inspect the bracket annually for paint chips; touch up with zinc-rich primer and epoxy paint if needed. With correct installation and periodic inspection, the 810W51715-0046 Storage Cylinder Bracket R155 will outlast the original vehicle, ensuring safe, leak-free air storage for the entire service life of your SITRAK truck.
Final verdict: The 810W51715-0046 Storage Cylinder Bracket R155 redefines safety and durability for SITRAK air tank mounting. Its micro-alloyed steel, robotic welding, and multi-layer coating deliver unmatched fatigue life, corrosion resistance, and structural rigidity. Avoid cheap brackets that crack, corrode, and risk sudden air loss. Choose original – choose 810W51715-0046 Storage Cylinder Bracket R155 for permanent, worry-free cylinder retention and maximum resale value of your SITRAK fleet.
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