Product Features

• Structure: A stacked plate design made from corrosion-resistant, high-temperature steel alloy. The plates are precision-welded to create efficient heat exchange channels, with integrated mounting flanges for secure installation.

• Performance: Delivers high heat transfer efficiency to dissipate excess heat from engine oil, preventing oil degradation and maintaining lubrication performance. The robust steel construction withstands high pressure and temperature fluctuations.

• Design: Directly interchangeable with the original equipment cooler core, ensuring a perfect fit and seamless integration with the engine’s lubrication system.

Core Function

1. Heat Dissipation: Cools hot engine oil using coolant from the engine’s cooling system, maintaining oil temperature within the optimal operating range.

2. Oil Protection: Prevents thermal degradation of engine oil, preserving its viscosity and lubricating properties to reduce wear on engine components.

3. Engine Efficiency: Maintains consistent oil temperature to ensure stable engine performance and extend service life of both the oil and engine.

Engine Oil Cooler Core D18-002-40 SHANGCHAI – Premium Replacement for Heavy-Duty Diesel Engines

When your SHANGCHAI-powered fleet demands reliable thermal management, the Engine Oil Cooler Core D18-002-40 delivers precision-engineered heat dissipation that keeps lubricant temperatures within optimal operating range. Built to OEM specifications and rigorously tested under extreme thermal loads, this cooler core stands ready to protect your engine investment mile after mile. METTLEAD Truck Parts supplies this critical component direct from the factory floor — eliminating middlemen, reducing lead times, and putting professional-grade quality within reach of procurement teams worldwide.

Why This Engine Oil Cooler Core Matters to Your Fleet

An oil cooler core is not a passive component — it actively defends your engine against thermal degradation. When oil temperatures climb beyond 120°C, viscosity breaks down, wear accelerates, and costly failures follow. The D18-002-40 oil cooler core intercepts that heat before damage begins.

• Optimized Heat Exchange Efficiency: Multi-row plate-fin construction maximizes surface contact area, dissipating heat up to 35% more effectively than worn or aftermarket alternatives.
• Extended Oil Service Life: By maintaining oil temperature between 85–105°C, this cooler core reduces oxidation rates and preserves additive packages, extending drain intervals.
• Direct OEM-Spec Fitment: Engineered to match SHANGCHAI D-series engine mounting points, port dimensions, and flow characteristics — no modifications required.
• Corrosion-Resistant Construction: Aluminum alloy core with brazed joints resists coolant-side corrosion and oil-side sludge buildup across 500,000+ km service cycles.
• Pressure-Tested Reliability: Every unit undergoes hydrostatic pressure testing at 0.4 MPa to ensure zero-leak performance before shipment.

Technical Specifications – Engine Oil Cooler Core D18-002-40

Application Scenarios – Where the D18-002-40 Performs

The Engine Oil Cooler Core D18-002-40 SHANGCHAI serves as a critical thermal management component across a wide range of heavy-duty applications:

• Long-Haul Trucks: SHACMAN F3000, SHACMAN X3000, and SANY heavy trucks equipped with SHANGCHAI SC9D engines operating on extended highway routes where sustained high RPM generates continuous thermal load.
• Construction Machinery: Wheel loaders (XCMG LW500, SDLG L956) and excavators running SHANGCHAI D6114 powerplants in dusty, high-ambient-temperature environments where cooling efficiency is non-negotiable.
• Mining Dump Trucks: Off-road haulers operating under maximum payload conditions where engine oil temperatures routinely spike during steep-grade climbs.
• Marine & Generator Sets: Stationary and marine SHANGCHAI engines powering gensets and vessels that require consistent oil cooling during continuous-duty operation cycles.
• Bus & Public Transit Fleets: Urban and intercity buses with SHANGCHAI engines facing stop-and-go thermal cycling that stresses oil cooler integrity daily.

Whether your vehicles haul aggregate across African mining roads or deliver goods through Southeast Asian monsoon heat, this cooler core maintains the thermal discipline your SHANGCHAI engine was designed around.

OEM/ODM Capability – Your Brand, Our Engineering

METTLEAD Truck Parts understands that distributors and fleet operators often need more than a part — they need a supply chain partner who adapts. Our factory-direct model gives you access to flexible manufacturing options:

• White-Label Packaging: Receive the D18-002-40 cooler core in neutral boxes, ready for your own branding and distribution network.
• Custom Packaging & Labeling: We print your logo, part numbers, and barcodes directly on packaging — minimum order quantities apply.
• Strict Quality Control: ISO-aligned inspection protocols cover raw material verification, dimensional checks, pressure testing, and final visual inspection before dispatch.
• Bulk Order Pricing: Factory-direct pricing scales with volume. Procurement managers consistently report 20–40% savings versus trading company channels.
• Sample Orders Welcome: Validate fitment and quality with small trial orders before committing to container-level volumes.

Explore our full range of SHANGCHAI engine parts to consolidate your sourcing under one reliable supplier.

Frequently Asked Questions – Engine Oil Cooler Core D18-002-40

What are the signs that my D18-002-40 oil cooler core needs replacement?

Watch for elevated oil temperature readings (consistently above 110°C), coolant contamination with oil (milky appearance), oil pressure drops at idle, or visible external leaks around the cooler core housing. A failing core often shows micro-cracks in the brazed plate joints that allow cross-contamination between oil and coolant circuits.

Is this oil cooler core a direct fit for all SHANGCHAI engine models?

The D18-002-40 is designed primarily for SHANGCHAI SC9D, SC8D, D6114, and C6121 series engines. Port spacing, gasket dimensions, and flow ratings match OEM assembly drawings. However, we recommend confirming your engine serial number with our technical team to verify exact compatibility before ordering.

How does the D18-002-40 handle extreme cold-start conditions?

The aluminum alloy construction tolerates operating temperatures down to -40°C without brittle fracture. During cold starts, the core’s thermal mass warms quickly with engine oil flow, reaching effective heat exchange equilibrium within 3–5 minutes of operation — preventing condensation buildup that causes internal corrosion in lesser-quality cores.

Can I install this cooler core without replacing the entire oil cooler assembly?

Yes. The D18-002-40 is the internal core element designed to be serviced independently of the outer housing. Technicians remove the housing cover, extract the old core, replace O-ring seals, and install the new core. This saves significant cost versus replacing the complete oil cooler assembly.

What quality testing does each unit undergo before shipping?

Every Engine Oil Cooler Core D18-002-40 passes through a multi-stage inspection process: dimensional verification against OEM drawings, hydrostatic pressure testing at 0.4 MPa for 30 seconds (zero-leak standard), visual inspection of brazed joints under magnification, and packaging integrity checks. Units that fail any stage are rejected — no exceptions.

How should I store this part before installation?

Store the cooler core in its original sealed packaging, in a dry environment between 5–35°C. Avoid stacking heavy items on top of the package. The aluminum fins are precision-formed — physical deformation before installation reduces heat exchange surface area and compromises performance.

Request Your Quotation – Engine Oil Cooler Core D18-002-40 SHANGCHAI

Your fleet cannot afford thermal failures, and your budget cannot afford inflated middleman pricing. METTLEAD Truck Parts bridges that gap with factory-direct access to the Engine Oil Cooler Core D18-002-40 — tested, packaged, and shipped on your timeline.

Take the next step:

• Tell us your required quantity and destination port
• Receive a competitive CIF/FOB quotation within 24 hours
• Approve a sample order or proceed directly to bulk fulfillment

Contact our parts specialists now — let us show you why procurement teams across 60+ countries trust METTLEAD as their SHANGCHAI parts source.