

The oil drain plug is a small but critical component that ensures your engine’s lubricant remains contained and clean during operation. The 1000665161 Oil Drain Plug from HOWO is engineered to deliver a perfect, leak‑free seal, exceptional magnetic debris capture, and long‑lasting durability, protecting your engine from oil loss and contamination. As a vital Howo/Sitrak truck parts component, this oil drain plug is manufactured from high‑grade steel with a precision‑machined thread and a powerful integrated magnet that captures ferrous particles, keeping your engine oil clean and your engine protected. Whether you are performing a routine oil change or replacing a worn plug, the 1000665161 guarantees a perfect factory fit, reliable sealing, and superior engine protection – making it the trusted choice for professional workshops and fleet operators worldwide.
The oil drain plug is the primary access point for draining engine oil during maintenance, and its sealing integrity is vital for preventing leaks and maintaining oil pressure. The 1000665161 is specifically designed to provide a secure, leak‑free seal, with a precision‑machined thread that matches the original oil pan perfectly. The integrated magnet captures ferrous metal particles suspended in the oil, preventing them from circulating and causing wear on bearings, piston rings, and other critical components. A worn or damaged drain plug can lead to oil leaks, low oil pressure, and eventual engine failure. HOWO has engineered this plug with a robust steel body, a corrosion‑resistant coating, and a high‑strength magnet that retains its magnetic properties over time. With the 1000665161, you ensure that your engine oil stays clean and contained, protecting your engine and extending its service life.
Leak‑Free
Zero Seepage
Magnetic
Debris Capture
OEM Fit
Exact Match
Durable
Steel Construction
The 1000665161 oil drain plug is manufactured to the highest OEM standards, incorporating advanced materials and precision engineering. Below are the complete technical specifications for this essential engine maintenance component.
| Parameter | Specification | Detail |
|---|---|---|
| OEM Number | 1000665161 | Exact Match |
| Part Name | Oil Drain Plug | HOWO Genuine |
| Brand | HOWO | Original Equipment |
| Application | HOWO T7H / A7 / MC11/MC13 | Engine oil pan |
| Thread Size | M22 x 1.5 | Precision cut |
| Head Type | Hexagon (24 mm) | Standard socket |
| Magnet Type | Neodymium (integrated) | High strength |
| Sealing Washer | Copper / aluminium (included) | Crush‑type |
| Material | High‑strength steel (45#) | Zinc‑plated |
| Operating Temp | -40°C to +150°C | Extreme range |
| Weight | 0.08 kg | Lightweight |
| Warranty | 12 Months | Manufacturer Guarantee |
The 1000665161 oil drain plug is produced using advanced CNC machining and quality control processes. The steel billet is precision‑turned to create a perfectly concentric thread and a smooth sealing surface. The integrated neodymium magnet is securely retained at the tip of the plug, capturing ferrous particles that would otherwise circulate in the oil and accelerate engine wear. The hex head is machined to exact dimensions, ensuring a secure fit with a standard 24 mm socket and reducing the risk of rounding. The plug is then zinc‑plated and passivated to provide excellent corrosion resistance, even after repeated exposure to hot engine oil and moisture. Each plug is supplied with a high‑quality copper or aluminium sealing washer that crushes to form a perfect seal, preventing leaks. Every unit is inspected for thread accuracy, magnet strength, and dimensional integrity, guaranteeing that the 1000665161 meets HOWO’s stringent quality standards. This meticulous engineering ensures that your oil pan remains sealed, your oil stays clean, and your engine remains protected.
The 1000665161 oil drain plug is specifically designed for HOWO heavy‑duty trucks equipped with MC11 or MC13 engines, including T7H, A7, and derivative models. It directly replaces the original drain plug with identical thread size, head dimensions, and sealing design, ensuring a straightforward installation without modifications. The plug is compatible with all factory‑specified oil pans and works seamlessly with the original oil pan gasket. This drain plug is also compatible with many Sinotruk and other commercial vehicles that share the same oil pan thread specification. To confirm fitment, always cross‑reference the OEM number on your existing plug with 1000665161. If they match, this component will integrate seamlessly. Keeping this plug in your spare parts inventory ensures that you are always prepared for routine oil changes, minimising downtime and ensuring a reliable seal every time.
HOWO T7H
Primary Fitment
HOWO A7
Also Compatible
MC11/MC13
Engine Series
Direct Replacement
No Modifications
Replacing a worn, stripped, or non‑magnetic drain plug with the 1000665161 immediately improves the integrity of your engine’s oil system. The precision thread ensures a tight, leak‑free seal, eliminating the risk of oil seepage and maintaining proper oil pressure. The powerful neodymium magnet captures ferrous particles that would otherwise circulate through the engine, reducing wear on bearings, piston rings, and cylinder walls. This extends the service life of your engine and reduces the frequency of oil changes. The corrosion‑resistant finish also ensures that the plug remains easy to remove even after years of service, preventing the frustration of a seized plug during routine maintenance. For fleet operators, a reliable oil drain plug reduces the risk of oil‑related engine failures, lowers maintenance costs, and helps maintain the performance and efficiency of your vehicles. By investing in the 1000665161, you ensure that your HOWO engine stays clean, protected, and reliable, mile after mile.
Installing the 1000665161 oil drain plug is a simple procedure. Begin by safely draining the engine oil and allowing it to cool. Remove the old plug and clean the oil pan threads and sealing surface thoroughly to remove any debris or old sealant. Install the new sealing washer onto the plug, ensuring it is correctly seated. Hand‑thread the new plug into the oil pan to avoid cross‑threading, then tighten it with a torque wrench to the manufacturer’s specified torque (typically 30‑35 Nm). Do not overtighten, as this can damage the threads or deform the washer. Refill the engine with the correct oil and check for leaks. Periodically inspect the plug and sealing washer for signs of wear or damage, and replace the washer each time you change the oil. With proper installation, the 1000665161 will provide years of reliable sealing and engine protection.
Pro Tip: When installing the new drain plug, always use a new sealing washer. The 1000665161 comes with a high‑quality copper or aluminium washer that is designed for one‑time use. Reusing the old washer can compromise the seal and lead to oil leaks.
Genuine HOWO components are engineered to the highest standards, and the 1000665161 oil drain plug is no exception. Aftermarket plugs often use inferior steel, lower‑grade magnets, or imprecise threads, leading to leaks, stripped threads, and poor debris capture. HOWO’s plug is manufactured using the same materials and processes as the original equipment, guaranteeing a perfect fit and reliable performance. By choosing the 1000665161, you benefit from HOWO’s rigorous testing, including thread accuracy, magnet strength, and corrosion resistance tests. This ensures that the plug meets the demanding requirements of heavy‑duty trucking. Moreover, genuine parts are backed by a comprehensive warranty and supported by HOWO’s global network, giving you confidence in your purchase.
OEM Authentic
Factory Quality
Long Service
Extended Life
Global Standard
Trusted Worldwide
Q: Which vehicles use the 1000665161 oil drain plug?
A: The 1000665161 is designed for HOWO T7H, A7, and other models with MC11/MC13 engines, as well as many Sinotruk trucks with the same oil pan thread.
Q: What are the symptoms of a failing oil drain plug?
A: Visible oil leaks from the oil pan, low oil level warnings, stripped threads, or a loose plug are common indicators.
Q: Is the magnet strong enough to capture all metal particles?
A: The 1000665161 features a high‑strength neodymium magnet that effectively captures ferrous particles, helping to keep your engine oil cleaner and reducing wear.
Q: How do I verify the correct part?
A: Check the OEM number on your existing plug. If it matches 1000665161, this is the exact replacement. Consult your vehicle’s parts manual for additional confirmation.
Order your 1000665161 Oil Drain Plug today! Explore our complete selection of genuine HOWO and Sinotruk engine maintenance components at Howo/Sitrak truck parts and keep your engine oil secure and clean.
The 1000665161 Oil Drain Plug from HOWO is a testament to precision engineering and uncompromising quality. By choosing this genuine component, you ensure that your engine’s oil system remains sealed and protected, preventing leaks and keeping your oil clean of harmful contaminants. Whether you are a professional mechanic or a fleet manager, this drain plug offers the performance, reliability, and exact fit that you can count on. Trust HOWO – the benchmark for excellence in heavy‑duty truck components – and experience the difference that genuine quality makes.