

The 712-#0390-0703 Lubricant And Working Fluid is a premium-grade formulation specifically engineered for HOWO heavy-duty trucks, proudly offered within the Howo/Sitrak truck parts portfolio. This advanced fluid delivers exceptional lubrication, heat dissipation, and protection for MC11 National III engines and single-rear-axle configurations. With the 712-#0390-0703, you achieve reduced friction, extended component life, and optimized fuel efficiency. Its superior formulation ensures reliable operation under extreme temperatures and heavy loads, making it the definitive choice for fleet operators.
Formulated with advanced additive technology, the partprovides outstanding anti-wear protection, oxidation stability, and corrosion resistance. Its optimized viscosity ensures consistent performance across a wide operating temperature range, safeguarding critical powertrain components and maximizing uptime.
The 712-#0390-0703 is formulated with high-performance anti-wear additives that form a durable protective film on metal surfaces. This significantly reduces friction and wear on engine bearings, camshafts, and gear teeth, extending component life by up to 40%.
Independent testing confirms that the partexceeds API and ACEA performance requirements, providing superior protection against scuffing, pitting, and fatigue in demanding heavy-duty applications.
Engineered with high-quality base oils and oxidation inhibitors, the partresists thermal breakdown even at sustained high temperatures. This prevents sludge and varnish formation, keeping engines and transmissions clean and efficient.
The 712-#0390-0703 maintains its viscosity and lubricating properties over extended drain intervals, reducing maintenance costs and minimizing environmental impact. Its exceptional thermal stability ensures reliable performance in both extreme heat and cold.
The 712-#0390-0703 features a carefully balanced viscosity grade that reduces internal friction, translating to improved fuel economy. Fleet operators have reported up to 3% fuel savings after switching to this premium formulation.
The advanced formulation of the partenables extended oil change intervals of up to 50,000 kilometers, significantly reducing maintenance downtime and waste oil generation, contributing to lower operating costs.
| Parameter | Specification |
|---|---|
| OEM Number | 712-#0390-0703 |
| Product Name | Lubricant And Working Fluid |
| Brand | HOWO / Sitrak |
| Viscosity Grade | 15W-40 (API CI-4+/ACEA E7) |
| Density (15°C) | 0.870 kg/L |
| Flash Point | ≥ 220°C |
| Total Base Number (TBN) | 10.5 mg KOH/g |
| Application | MC11 National III Engine, Single-Rear-Axle |
HOWO – A7, T7H, 77 series, 70 series with MC11 National III engines.
Sitrak – C7H, C9H, and off-road chassis with single-rear-axle configurations.
The 712-#0390-0703 provides comprehensive protection for MC11 National III engines, reducing wear on critical components such as piston rings, cylinder liners, and valve train mechanisms. Its high TBN reserves neutralize harmful acids formed during combustion.
For single-rear-axle applications, the partensures smooth operation and extended gear life, reducing the risk of costly repairs and unscheduled downtime.
Investing in the partdelivers substantial cost savings through reduced component wear, extended drain intervals, and improved fuel efficiency. Its premium formulation ensures fewer oil changes and less waste oil disposal.
Fleet operators report up to 20% reduction in powertrain-related maintenance costs after switching to the 712-#0390-0703, making it the most cost-effective lubricant solution available.
The 712-#0390-0703 is manufactured under ISO 9001:2015 and IATF 16949 certified processes, ensuring consistent quality. It meets or exceeds API CI-4+ and ACEA E7 performance standards.
All materials comply with global environmental regulations, and the formulation is designed to minimize emissions and environmental impact.
For optimal performance, use the partexclusively in MC11 National III engines and single-rear-axle systems. Always follow the manufacturer’s recommended change intervals and procedures.
Store the partin a cool, dry place away from direct sunlight. Ensure containers are tightly sealed to prevent contamination.
Genuine OEM Quality – Formulated specifically for HOWO powertrains.
Extended Service Life – Up to 50,000 km drain intervals.
The 712-#0390-0703 Lubricant And Working Fluid is the definitive choice for HOWO and Sitrak owners who demand uncompromising protection, performance, and efficiency.
With its advanced formulation, extended drain capability, and exceptional wear protection, this fluid ensures optimal powertrain performance throughout the vehicle’s operational life. Choose the partfor a premium solution that sets a new standard in heavy-duty lubrication.
OEM 712-#0390-0703 · HOWO Lubricant · Engineered for Protection and Performance.