The oil pan assembly is a vital component that stores engine oil and ensures proper lubrication of the HOWO MAX 4X2 engine. A durable oil pan assembly prevents leaks and maintains oil pressure. This genuine HOWO oil pan assembly kit includes the single layer oil pan component, composite sealing washer, and screw plug. When you choose authentic Howo Parts, you receive a complete oil pan assembly engineered for the MC13 engine platform.
The single layer oil pan component is the main stamped steel reservoir that holds the engine oil. One oil pan is supplied, made from high‑strength steel with a corrosion‑resistant coating. This oil pan has a capacity of approximately 12 liters and features a baffled design to prevent oil starvation during cornering or braking.
The pan includes a threaded drain hole at the lowest point and mounting flanges with 22 bolt holes. The single layer construction provides rigidity while keeping weight low. This oil pan component is precision‑formed to match the engine block contour, ensuring a perfect seal with the gasket. It also incorporates a magnetic drain plug to capture ferrous particles, protecting the oil pump and bearings. A properly maintained oil pan assembly is essential for engine longevity.
The composite sealing washer BS – 22,7 X30,0 – ST / FPM1 – 80 is a bonded seal used under the screw plug to prevent oil leaks. One washer is supplied, consisting of a steel outer ring with a bonded fluorocarbon rubber (FPM) sealing element. It has an inner diameter of 22.7mm and an outer diameter of 30.0mm.
This washer is used on the oil pan drain plug and provides a reliable seal even under high oil pressure and temperature cycles. The FPM rubber resists engine oil, heat, and aging, ensuring the oil pan assembly remains leak‑free. Replacing this washer during every oil change is recommended to maintain a tight seal.
The screw plug M22X1,5 – ST – GB / T 11376 – ZNPHR3F is a threaded plug used to close the oil drain hole in the oil pan. One plug is supplied, made from zinc‑plated steel with a hexagon socket drive. The thread size is M22x1.5, and the plug has a tapered thread that seals without additional sealant when used with the composite washer. It is installed with a torque of 30 Nm and can be removed for oil changes. This screw plug is the access point for draining used oil from the oil pan assembly. Its durable construction resists stripping and corrosion, allowing many removal and installation cycles.
Oil pan assembly – genuine HOWO engine oil pan and sealing kit
| Material Encoding | Name |
|---|---|
| 201V05801-5741 | Single layer oil pan component |
| MQ6-56631-0110 | Composite sealing washer BS – 22,7 X30,0 – ST / FPM1 – 80 |
| MQ6-08042-0207 | Screw plug M22X1,5 – ST – GB / T 11376 – ZNPHR3F |
This oil pan assembly includes the stamped steel pan, composite sealing washer, and screw plug. Everything needed to replace a damaged oil pan or to reseal the drain plug. No additional parts required.
The composite sealing washer uses FPM rubber that withstands high temperatures and oil. When combined with the zinc‑plated screw plug, it creates a drip‑free seal. No more oil stains under your truck.
The oil pan is coated to resist rust from road salts and moisture. The screw plug is zinc plated, and the washer is stainless steel/FPM, ensuring long service life even in harsh environments.
This oil pan assembly is specifically designed for the MC13 engine used in the HOWO MAX 4X2. The bolt pattern and shape match the original, ensuring a perfect fit and no clearance issues.
The oil pan is stamped from 3mm thick cold‑rolled steel and then coated with a black e‑coat that provides 500 hours of salt spray resistance. The pan features a deep sump at the rear to ensure oil pickup during acceleration and inclines. Internal baffles are welded in place to control oil slosh.
The flange is precision‑drilled with 22 holes for M8 bolts. A rubber or silicone gasket (not included) seals the flange to the engine block. The oil pan also has a machined flat boss for the drain plug, ensuring a perpendicular seat for the composite washer. This single layer design is both strong and lightweight, contributing to overall vehicle fuel efficiency.
Before installation, drain the engine oil and remove the old oil pan. Clean the engine block mating surface and remove any old gasket material.
Apply a new gasket or sealant as per the service manual. Position the new oil pan and hand‑start all bolts. Torque the M8 bolts to 20 Nm in a crossing pattern. Install the composite sealing washer onto the screw plug, then thread the plug into the oil pan drain hole. Torque to 30 Nm. Refill with the correct grade and quantity of engine oil. Start the engine and check for leaks around the oil pan flange and drain plug. No leaks should be present.
This oil pan assembly is specifically designed for the MC13 engine used in the HOWO MAX 4X2 tractor. It fits all production years from 2018 onward. The oil pan has a capacity of 12 liters, matching the engine’s lubrication requirements. The drain plug thread is M22x1.5, which is standard for this engine family. This kit is not compatible with the MC11 or MC07 engines. Always verify your engine serial number before ordering.
Inspect the oil pan for dents or cracks during every oil change. A dented oil pan can reduce oil capacity and affect pickup. Check the drain plug and composite washer for leaks.
Replace the composite sealing washer every time the oil is changed to ensure a fresh seal. The screw plug can be reused indefinitely if the threads are not damaged. If the oil pan flange is bent, it may cause gasket leaks; replace the oil pan assembly. Using a genuine HOWO oil pan assembly guarantees proper fit and material quality.
If you notice oil spots under the engine, check the drain plug area first. A leaking composite sealing washer is the most common cause.
Replace the washer and retorque the plug. If the leak is from the oil pan flange, the gasket may be damaged or the bolts may be loose. Retorque the bolts to 20 Nm. If the pan is cracked, it must be replaced; welding is not recommended due to warping. A dented oil pan can sometimes be straightened, but replacement is safer. Always use genuine HOWO parts for repairs.
Aftermarket oil pans are often made from thinner steel that dents easily and rusts quickly. The drain plug threads may be poorly machined, causing cross‑threading.
Generic composite washers may be made from plain rubber that hardens and leaks. Genuine HOWO oil pan assembly components use certified steel, precision threads, and high‑temperature FPM rubber. The screw plug is zinc plated to resist corrosion. Investing in a genuine oil pan assembly ensures your engine stays lubricated and leak‑free, avoiding costly repairs from oil starvation.
The oil pan is shipped in a reinforced cardboard box with foam padding to prevent deformation. The washer and plug are in sealed poly bags. The packaging is recyclable. The manufacturing facility is ISO 14001 certified. No hazardous substances are used in production. Using genuine HOWO parts supports sustainable manufacturing practices.
This oil pan assembly kit includes all three line items listed in the parameters table. Individual components can be ordered separately using their material encodings. Authorized HOWO dealers in Nigeria stock these genuine parts. For fleet orders of five or more kits, volume discounts are available. Always provide your engine serial number to confirm compatibility.
Fleet managers who have installed this genuine HOWO oil pan assembly report zero oil leaks and a perfect fit. The composite sealing washer has eliminated the need for messy sealant on the drain plug. The screw plug has not corroded even after two years of use in coastal humidity. Many operators have standardized on this oil pan assembly for all MC13 engine repairs, citing the complete kit as a time‑saving solution.
The oil pan is shipped in a box measuring 70cm x 40cm x 20cm, weight 8 kg. Store the oil pan in a dry indoor area. Do not stack heavy items on top to prevent deformation. The shelf life is indefinite when stored properly. Protect the pan from impact that could dent the sealing flange.
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