The part is a complete service kit containing the essential components for maintaining the oil filtration, cooling, and crankcase ventilation system on the HOWO MAX 4X2 MC13 engine. This Engine oil module kit includes the filter cover, filter element, oil gas separator, oil cooler, screw plug, and sealing washer. When you choose authentic Howo Parts, this Engine oil module guarantees correct fitment and leak free operation. Below are detailed descriptions of every component included with this Engine oil module assembly.
The engine oil filter cover is a die cast aluminum cap that seals the filter housing of The part. This Engine oil module cover incorporates an integral O ring groove that accepts the supplied sealing ring, which is made from FPM rubber for oil and heat resistance.
The cover is secured by a central bolt and provides a leak tight closure for the spin on filter element. When replacing The part filter, the cover must be removed and the sealing ring inspected; always replace the ring to prevent oil seepage. The cover also contains a bypass valve that opens if the filter becomes clogged, ensuring continuous oil flow to the engine bearings. A genuine Engine oil module cover guarantees the correct thread and sealing surface finish.
The engine oil filter element is a high efficiency depth type media that removes solid contaminants down to 5 microns. This Engine oil module element is a spin on design with a built in O ring that seals against the filter head. The O ring is pre lubricated to prevent rolling during installation. The element has a dirt holding capacity of 40 grams and a bypass valve set at 2.5 bar. Replace this Engine oil module filter element at every oil change (every 40,000 km). Using a genuine element ensures proper filtration efficiency and prevents unfiltered oil from bypassing the media due to an incorrectly set bypass valve.
The oil gas separator is a labyrinth type device that removes oil mist from crankcase blow by gases before they are vented to the atmosphere or returned to the intake. This Engine oil module component includes a sealing ring (O ring) that seals the separator to the engine block. The separator uses coalescing media to capture oil droplets, which then drain back to the oil pan via a return passage. A clogged oil gas separator can cause increased crankcase pressure and oil consumption. Replacing the separator as part of The part service restores proper blow by management.
The engine oil cooler is a plate and fin heat exchanger that transfers heat from the engine oil to the engine coolant. This Engine oil module cooler contains a stack of aluminum plates with turbulence enhancers, brazed together for maximum heat transfer. The sealing gasket (a flat fiber reinforced sheet) fits between the cooler and the engine block, preventing coolant and oil from mixing. If the cooler core leaks internally, oil may appear in the coolant (emulsion) or coolant in the oil. Replace The part cooler if any internal leakage is suspected. The gasket must always be replaced when the cooler is removed.
The M38x1.5 screw plug is a large steel plug that seals an auxiliary oil port on the engine block or The part. This plug has a hexagon socket drive and is zinc plated for corrosion resistance. It is used to close an oil gallery access hole that is not needed in certain engine configurations. When installing this Engine oil module plug, apply a small amount of thread sealant and torque to 80 Nm. The plug must be removed only during engine overhauls; otherwise it remains a permanent seal.
The copper sealing washer has an inner diameter of 38mm and outer diameter of 44mm, made from annealed copper. This Engine oil module washer is used under the head of the screw plug or other large threaded fasteners that require a metal to metal seal. Copper washers deform under torque, filling microscopic surface irregularities and providing a leak free joint. The copper material resists oil, heat, and aging. Replace this Engine oil module washer every time the screw plug is removed, as the copper will have work hardened and may not seal again.
Engine oil module – genuine HOWO oil filtration, cooling and venting service kit for MAX 4X2 MC13
This Engine oil module kit includes the filter cover, filter element, oil gas separator, oil cooler, screw plug, and copper washer – everything needed to refresh the lubrication and ventilation system on the MC13 engine. No extra parts to source.
The part filter element captures particles down to 5 microns, while the oil gas separator removes 95% of oil mist from blow by gases. Together they protect the engine from wear and reduce oil consumption.
The included engine oil cooler with its sealing gasket maintains oil temperature within optimal range, preventing viscosity breakdown and ensuring adequate lubrication under heavy loads. The part cooler is brazed for maximum durability.
Every sealing component in this Engine oil module kit – the filter cover O ring, filter element O ring, oil gas separator O ring, oil cooler gasket, and copper sealing washer – is supplied. No additional sealing purchases are required.
The part is not a single housing but a system of interrelated components: the oil filter cover seals the filter head; the filter element removes solid contaminants; the oil cooler reduces oil temperature via coolant exchange; the oil gas separator removes blow by oil mist; and the screw plug with copper washer seals an auxiliary gallery. During normal operation, oil is drawn from the sump, passes through the filter element, then through the oil cooler,
and is distributed to the engine. The oil gas separator continuously vents crankcase gases, returning oil to the pan. The part cover’s integrated bypass valve ensures oil flow even if the filter clogs. The screw plug provides access for pressure testing or gallery cleaning. Together, these Engine oil module components maintain oil cleanliness, temperature, and pressure, directly affecting engine life and performance.
Before installing The part parts, drain the engine oil and remove the old filter cover and element. Clean the filter head and oil cooler mounting surfaces. Install the new oil cooler with its sealing gasket,
torquing the retaining bolts to 25 Nm. Insert the new filter element into the housing, lubricate its O ring with clean oil, and tighten by hand 3/4 turn after contact. Install the filter cover with a new O ring, torquing the central bolt to 30 Nm. Replace the oil gas separator with its sealing ring. Finally, install the screw plug with the copper sealing washer, torquing to 80 Nm. Refill with fresh oil, start the engine, and check for leaks. The part service is now complete.
If The part filter cover leaks oil, the O ring may be damaged or the cover may be loose. Retorque to 30 Nm; if leaking persists, replace the O ring. Low oil pressure after servicing The part may indicate an incorrectly seated filter element or a missing bypass valve. Ensure the filter element is genuine and the cover’s bypass valve moves freely.
If the oil cooler gasket fails, coolant may mix with oil, causing a milky emulsion on the dipstick; replace the cooler and gasket immediately. A leaking screw plug is usually due to a damaged copper washer; replace the washer and retorque. If the oil gas separator clogs, crankcase pressure builds, leading to oil leaks from seals; replace the separator.
The part filter element should be replaced at every oil change (40,000 km). The oil cooler gasket and the filter cover O ring should be replaced whenever those components are removed. The oil gas separator has no fixed interval but should be inspected for clogging at 200,000 km and replaced if necessary. The screw plug and copper washer require no maintenance unless the plug is removed for service. Using a genuine Engine oil module kit ensures that all seals and elements are fresh and meet original specifications. Record the service date and mileage for each Engine oil module component replacement.
This Engine oil module service kit is designed for the SINOTRUK MC13 engine used in HOWO MAX 4X2 tractors, SITRAK C7H, and HOWO T7H trucks. It fits all production years from 2018 onward.
The filter cover and filter element are also compatible with MC11 engines. The oil gas separator and oil cooler are specific to the MC13 platform. Always verify your engine serial number before ordering this Engine oil module kit. For engines equipped with an external oil cooler, this kit may not include all required adapters; confirm your cooling configuration.
Aftermarket filter elements may use low grade media that does not achieve 5 micron efficiency, allowing abrasive particles to damage bearings. Generic filter cover O rings may be made from NBR instead of FPM, hardening and leaking within months. Non genuine oil cooler gaskets can fail under heat, causing coolant oil mixing and engine seizure.
The copper sealing washer in copy kits may be of incorrect hardness or size, failing to seal. Genuine HOWO Engine oil module components are manufactured to SINOTRUK’s exact specifications, using certified filtration media, FPM seals, brazed cooler cores, and precision copper washers. The small additional cost of a genuine Engine oil module kit is far outweighed by the cost of an engine rebuild due to oil starvation or contamination.
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