Dongfeng Kinland truck parts Direct quick insertion tube connector RQ83114N5C

Built to streamline pipeline assembly and maintenance, this connector features an advanced push-to-connect mechanism that eliminates the need for wrenches, crimpers, or sealants. The integrated design combines a 304 stainless steel locking collet, pre-installed seal ring, and ergonomic release sleeve: technicians simply insert the Φ14mm compatible tube into the connector until a clear “click” confirms secure engagement, completing installation in 8 seconds—85% faster than traditional threaded connectors. The straight-through structure ensures unobstructed fluid/gas flow, minimizing pressure loss (≤0.05MPa) even in high-flow systems like fuel supply lines. A textured release sleeve enables easy disassembly by pressing and pulling the tube, cutting maintenance time for coolant hose repairs by 70% compared to conventional connectors

As a critical barrier against fluid and gas leakage in critical truck systems, the RQ83114N5C integrates a triple-layer sealing structure that meets strict industrial standards. The primary seal is a food-grade EPDM rubber ring (Shore A hardness 72) that conforms to the tube’s outer surface, maintaining a leak-tight seal under 1.6MPa working pressure (fuel system peak pressure) for 48 consecutive hours. A secondary FKM O-ring seals the threaded interface, resisting swelling and degradation from diesel fuel, coolant, and road cleaning agents. The third layer is a labyrinth dust shield between the locking collet and tube, blocking debris from entering the sealing area. This system prevents catastrophic failures like fuel leaks (posing fire risks) and coolant loss (causing engine overheating and $1,500+ repair costs)

Engineered to withstand the extreme conditions of truck operation, the connector features a rugged, corrosion-resistant build. The main body is precision-machined from lead-free brass (CuZn40Sn1) with a 2.2mm wall thickness, achieving a tensile strength of 340MPa and resisting deformation from chassis vibration (10-600Hz) and accidental impacts. The surface undergoes tri-treatment: zinc plating (10μm thickness), passivation, and a clear chromate topcoat, passing 2000-hour neutral salt spray testing (ASTM B117) with no rust or pitting—ideal for coastal regions and snowy areas with road salt. The locking collet is made of 316 stainless steel (HRC 48) for wear resistance, enduring 150+ insertion/removal cycles without fatigue. All seals operate stably from -45℃ to 125℃, adapting to frigid winters and high-temperature engine bays

This direct quick-insert connector delivers substantial cost savings and system protection for Dongfeng Kinland operators. Its tool-free design cuts labor costs by 65% compared to traditional connectors, while the fast disassembly feature minimizes downtime—critical for logistics fleets where every hour of idleness costs $800+. The leak-proof sealing prevents costly issues: fuel leaks (wasting $1-1.5 per liter of diesel) and coolant system failures (leading to engine derating and delivery delays). As a genuine OE part, it avoids mismatched aftermarket connectors that cause tube damage (a 5m fuel supply hose costs $200+ to replace). The connector’s 200,000km service life—three times that of non-OE alternatives—reduces replacement frequency. Backed by a 1-year/150,000km Dongfeng warranty, it ensures reliable pipeline performance and predictable maintenance expenses, safeguarding the truck’s critical fluid and pneumatic systems