Shacman WP12 Oil cooler Group

The Shacman WP12 Oil cooler Group is a complete, factory‑matched oil cooler assembly for the WP12 diesel engine. This group includes the oil cooler, O‑rings, and hexagon head bolts, ensuring efficient oil cooling and reliable sealing for heavy‑duty commercial vehicles.

This group integrates the O‑ring, Oil Cooler, and Hexagon Head Bolt. Each component is manufactured to exacting OEM standards, guaranteeing a perfect fit, effective heat dissipation, and long‑term durability in harsh engine environments.

The WP12 platform is known for its robust cooling system. The Shacman WP12 Oil cooler Group features a high‑efficiency plate‑type or tube‑type oil cooler, precision‑molded O‑rings, and high‑strength bolts, providing consistent oil temperature control and leak‑free operation over millions of kilometers.

With a focus on operational reliability, this oil cooler group delivers effective heat transfer, stable oil viscosity, and extended engine life. It is the preferred choice for fleet operators and workshops seeking genuine Shacman quality and dependable aftermarket support worldwide.

Every component within the Shacman WP12 Oil cooler Group undergoes rigorous dimensional inspection, pressure testing, and material verification. This ensures that the assembly meets or exceeds original equipment specifications, providing peace of mind and long‑term reliability in the most demanding conditions.

Designed for high‑mileage operations, the WP12 oil cooler offers superior resistance to thermal fatigue and oil degradation. The integration of a large cooling surface, efficient flow channels, and durable seals guarantees consistent oil temperature control, preventing overheating and maintaining optimal lubrication.

Shacman’s commitment to quality is evident in every detail of the Shacman WP12 Oil cooler Group. From the metallurgy of the cooler core to the tensile strength of the bolts, every parameter is optimized for maximum durability and safety under extreme operating conditions.

This oil cooler group is fully compatible with existing WP12 engine blocks and oil filter housings, enabling seamless replacement and upgrade. It reduces downtime and simplifies maintenance, making it an ideal solution for workshop rebuilds and preventive maintenance programs across global markets.

Field data confirms that engines equipped with the Shacman WP12 Oil cooler Group consistently deliver lower total cost of ownership. Effective cooling reduces oil oxidation, extends oil change intervals, and protects critical components from thermal stress, contributing to significant operational savings for fleet managers.

Trusted by operators in more than 60 countries, the Shacman WP12 Oil cooler Group is a global benchmark for heavy‑duty oil cooler reliability. Its proven design and robust construction make it a cornerstone of modern commercial vehicle cooling systems.

The oil cooler is manufactured from high‑strength aluminum or steel with a corrosion‑resistant coating, featuring a plate‑and‑fin or tube‑and‑fin design that maximises heat exchange surface area while minimising pressure drop. Its internal baffles ensure uniform oil flow and efficient heat transfer to the engine coolant.

The O‑rings are manufactured from high‑temperature fluoroelastomer (FKM) with a precise cross‑section, providing a durable, leak‑free seal between the cooler and the engine block or filter housing, preventing oil bypass and maintaining system pressure.

The hexagon head bolts are grade 10.9 with a zinc‑plated finish, providing secure clamping of the cooler to the engine. Their precise length and thread pitch are matched to the mounting holes, and a pre‑applied thread‑locking compound prevents loosening.

The assembly is supplied with all required fasteners and seals, ensuring a complete, hassle‑free replacement. Installation is straightforward with basic hand tools, and detailed torque specifications are included.

This oil cooler group is an essential maintenance component for any WP12 engine, offering improved oil temperature control, extended oil life, and enhanced engine protection. Its genuine Shacman quality ensures that your engine continues to deliver reliable performance.

O‑ring – A resilient elastomeric seal that prevents oil leakage between the oil cooler and the engine block or filter housing. Manufactured from high‑temperature fluoroelastomer (FKM) with a precise circular cross‑section, this O‑ring provides a reliable, leak‑tight seal even under high oil pressure and temperature extremes (‑40°C to +200°C). Its material is resistant to oil, coolant, and ozone, ensuring long‑term sealing integrity. The O‑ring is compressed during assembly, conforming to surface imperfections to create a positive seal. This O‑ring is a critical sealing component; its replacement is recommended whenever the oil cooler is removed, as old seals can harden and lose their effectiveness, leading to oil leaks and pressure loss.

Oil Cooler – The primary heat exchanger that removes excess heat from the engine oil, maintaining optimal operating temperature. Manufactured from high‑strength aluminum or steel with a corrosion‑resistant coating, this cooler features a plate‑and‑fin or tube‑and‑fin design that maximises surface area for efficient heat transfer while minimising oil pressure drop. Its internal flow passages are engineered to ensure even oil distribution and effective contact with the cooling fluid (engine coolant). The cooler is designed to withstand high thermal cycling and vibration, providing a service life exceeding 1.5 million kilometers. This oil cooler is a direct replacement for the original factory component, offering identical cooling capacity and durability. It is essential for preventing oil degradation, maintaining viscosity, and protecting engine bearings and turbochargers from overheating.

Hexagon Head Bolt – A high‑strength fastener that secures the oil cooler to the engine block or filter housing, ensuring a rigid, leak‑free connection. Manufactured from alloy steel, heat‑treated to grade 10.9, and coated with a zinc‑plated finish for corrosion resistance, these bolts provide consistent clamping force under high vibration and thermal cycling. The hexagonal head allows for easy torque application with standard wrenches, and a pre‑applied thread‑locking compound prevents loosening. Their precise length and thread pitch are matched to the mounting holes. These bolts are critical for maintaining cooler alignment and sealing, and they should be replaced with new ones during any service involving the oil cooler.

High‑Efficiency Core Design
The oil cooler uses a plate‑and‑fin or tube‑and‑fin construction that maximises heat transfer surface area, ensuring rapid oil cooling and stable operating temperatures.

Premium Elastomer Seals
The O‑rings are made from high‑grade FKM with excellent resistance to oil, heat, and ozone, providing a durable seal that maintains its elasticity over the engine’s life.

Corrosion‑Resistant Fasteners
All bolts are zinc‑plated and include a thread‑locking patch, ensuring reliable retention and corrosion resistance even in harsh environments.

Heavy‑duty long‑haul trucks and tractor‑trailers

Construction and mining dump trucks

Intercity and transit buses

Agricultural and forestry machinery

Marine auxiliary power units

Stationary generator sets and pumps

Performance Summary: The Shacman WP12 Oil cooler Group is designed for engines up to 480 HP and 2200 N·m of torque. With a proven service life exceeding 1.5 million kilometers, it delivers consistent oil temperature control, reliable sealing, and minimal maintenance, contributing to overall engine efficiency and longevity.

Preparation & Cleaning
Drain the coolant and oil, then remove the old cooler. Clean the mounting surfaces thoroughly. Inspect the new O‑rings and replace if damaged. Lubricate the O‑rings with clean oil before installation.

Installation & Torque
Install the cooler with new O‑rings, align the bolt holes, and tighten the hexagon head bolts in a cross‑pattern to the specified torque (typically 20‑25 N·m). Re‑torque after engine warm‑up.

Periodic Monitoring
Regularly check for oil or coolant leaks around the cooler. Monitor oil temperature and pressure. Replace the cooler if any signs of clogging, corrosion, or leakage are detected.

Quality Certifications & Standards
The Shacman WP12 Oil cooler Group complies with ISO 9001:2015 and IATF 16949 quality management standards. All components are manufactured in facilities certified to ISO 14001 environmental standards, ensuring sustainable production practices.