Dongfeng KL truck spare parts Urea tank cover 1205541-TL100

As a critical component protecting the SCR system’s urea quality, this tank cover features a three-layer sealing structure to ensure leak-proof and contamination-free performance. The primary seal is a food-grade EPDM rubber gasket (8mm thickness) with a Shore A hardness of 70, forming a tight bond with the tank’s sealing surface to prevent urea solution leakage (tested to withstand 0.3MPa pressure with no seepage). A secondary labyrinth seal blocks dust, rainwater, and road debris from entering the tank, while a tertiary PTFE coating on the thread reduces friction and enhances sealing. The integrated breather valve maintains internal pressure balance (±5kPa), preventing tank deformation and ensuring smooth urea flow to the SCR system

Engineered to endure the corrosive nature of urea solution (AUS 32) and harsh truck environments, the 1205541-TL100 cover is crafted from high-performance materials. The main body is made of glass fiber-reinforced PP (polypropylene) with 30% glass fiber content, achieving a tensile strength of 50MPa and resistance to urea-induced chemical degradation (no cracking or discoloration after 2000-hour immersion). The thread and sealing surface are precision-machined to a roughness of Ra ≤0.8μm, reducing wear during repeated opening and closing (tested to 10,000+ cycles with no thread damage). A UV-stabilized additive in the PP material prevents fading and brittleness from long-term sun exposure, extending service life to ≥200,000km

Optimized for truck drivers’ daily use, the urea tank cover adopts an intuitive, user-friendly design. It features a hexagonal knurled outer edge (110mm diameter) with anti-slip grooves, enabling easy manual opening and closing even with gloved hands—critical for drivers in cold or rainy conditions. A built-in locking tab (ABS plastic) engages with the tank’s retaining clip to prevent accidental opening during driving, while a color-coded blue cap (compliant with ISO 22241) clearly identifies the urea filling port, avoiding misfilling with diesel fuel (a costly mistake that damages the SCR system). The cover’s lightweight design (120g) reduces fatigue during frequent refills, and its low profile (40mm height) prevents damage from road obstacles

This urea tank cover plays a vital role in protecting the SCR system and reducing long-term operational costs for Dongfeng KL operators. By preventing urea contamination, it ensures the SCR catalyst (Dongfeng OE 1205010-TL100) maintains 90%+ NOₓ conversion efficiency, avoiding engine derating (power reduction by 50%) and non-compliance fines (up to $1,000 per violation). The leak-proof design prevents urea loss (costing $0.8-1.2 per liter) and corrosion to the truck chassis (repair costs up to $800). As a genuine OE part, it avoids the poor fit of aftermarket covers that cause urea crystallization in the filling neck (cleaning costs $300+). The plug-and-play design enables replacement in 2 minutes, lowering labor costs. Backed by a 1-year/150,000km Dongfeng warranty, it provides reliable SCR system protection and predictable maintenance expenses