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WEICHAI ENGINE WD618 ENGINE Oil Cooler Core 61800010113
Common symptoms of malfunction include: excessive oil temperature (indicated by a dashboard warning), thinning of the engine oil, abnormal engine noises, and a loss of power. In severe cases, this may lead to cylinder scoring or bearing seizure.
FUNCTION
1. Cool Engine Oil: By facilitating heat exchange between the engine coolant and the high-temperature oil, it lowers the oil temperature and maintains it within the optimal operating range.
2. Maintain Oil Viscosity and Lubricity: It prevents the oil from thinning, oxidizing, or losing its lubricating properties due to high temperatures, thereby ensuring effective lubrication for critical engine components such as bearings, the crankshaft, and the turbocharger.
3. Protect the Engine: It reduces the engine's thermal load, minimizes component wear, carbon buildup, and the risk of mechanical failure, and extends the overall service life of the engine-particularly under heavy-load, long-distance, high-temperature, or high-intensity operating conditions.
Installation Location
It is installed in series with the oil filter on the same filter housing (the oil first flows through the oil cooler core for cooling, and then enters the oil filter for filtration).The oil cooler core is covered by a cooler cover and secured with bolts to the engine block or the filter housing.
Working Principle
1. High-temperature engine oil flows from the engine into the oil cooler core.
The interior of the cooler core features a plate-fin structure, in which the oil and coolant flow in adjacent channels-either in a counter-flow or cross-flow configuration-to achieve highly efficient heat exchange.
2. The cooled oil flows back into the engine's lubrication system, while the coolant, having absorbed the heat, proceeds to the radiator for further cooling.
3. This entire process constitutes a passive heat exchange system, requiring no external power source and featuring a simple, reliable structure.
Advantages
| No. | Performance Advantage Category | Specific Advantage Description |
|---|---|---|
| 1 | Heat Dissipation & Cooling Efficiency | Adopts plate-fin structure (commonly 9 plates), with large heat exchange area and excellent cooling performance. Effectively controls oil temperature within the optimal range of 80-110°C, preventing oil from becoming too thin due to overheating. |
| 2 | Engine Protection | Maintains proper oil viscosity and lubrication performance, reduces wear on precision components such as bearings, crankshaft, and turbocharger. Lowers risks of cylinder scoring, carbon buildup, and other failures, significantly extending engine service life. |
| 3 | High-Load Adaptability | Performs stably under heavy-load, long-distance, high-temperature, or high-power conditions. Withstands high thermal loads, ensuring reliable engine operation - especially suitable for heavy-duty trucks in high-intensity applications. |
| 4 | Structural Durability | Manufactured to Weichai OEM standards, made with high-temperature resistant, corrosion-resistant, and vibration-resistant materials. Excellent sealing performance with low leakage rate and long service life (high-quality units can work stably for tens of thousands of kilometers). |
DETAILS
| DESCRIPTION | Oil Cooler Core | PART NUMBER | 61800010113 |
| WEIGHT |
2KG |
VOLUME |
240 × 18 mm |
| TRUCK MOLDE | SINOTRUK | QUALITY | Copy,High Copy, OEM,Original |
| MOQ | 1 | WARRANTY | 1 year |
| PAYMENT | TT/WESTEN UNION | SHIPMENT | by air/sea/railway |
| BRAND | SINOSACHS | PLACE OF ORIGIN | JINAN CITY,CHINA |
| STOCK | IN STOCK | APPLICABLE SITE | ENGINE |
| PACKAGE | Carton/Woodenbox | PORT OF LANDING | Qingdao Port,China |
Daily Maintenance Suggestions
| Item | Maintenance Interval | Specific Operations |
|---|---|---|
| Check Oil Temperature and Level | Every 5,000 km or weekly | Monitor the oil temperature gauge to ensure it stays within the normal range (optimal 80-110°C). Check the oil dipstick level and top up with the same specification oil if the level is too low. |
| Check Coolant Level and Quality | Every 5,000 km or monthly | Check the coolant reservoir level and top up with the same specification antifreeze. Inspect whether the coolant is deteriorated, mixed with oil, or has abnormal odor. |
| Inspect Cooler and Pipeline for Leaks | Every 5,000–10,000 km | Observe the oil cooler cover, oil pipes, and water pipes for any oil or coolant leakage, aging, or cracks. |
| Inspect Appearance and Mounting Bolts | Every 10,000 km | Check the cooler cover for deformation or corrosion, and ensure the bolts are not loose. Clean surface dust and oil stains. |
| Replace Engine Oil and Oil Filter | Every 10,000–15,000 km (or per manufacturer manual) | Check if the oil cooler core is clogged at the same time; clean or replace if necessary. |
| System Cleaning and Bleeding | When temperature is abnormal or parts are replaced | Clean the cooling system and remove air to ensure smooth heat exchange. |
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