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The AZ220310000019 filter oil pipe assembly is a genuine SINOTRUK HOWO component engineered to deliver clean, pressurized oil from the filter housing to the engine’s main lubrication gallery. As a critical element of the trusted Sinotruk howo parts family, this pipe assembly ensures a leak‑free, high‑flow connection that withstands the extreme pressures and temperatures of heavy‑duty diesel operation. Manufactured from seamless cold‑drawn steel tubing with forged end fittings, the AZ220310000019 assembly is precision‑bent to match the original chassis routing, avoiding interference with other components. Its robust construction guarantees reliable oil supply, protecting bearings, turbochargers, and valve trains from oil starvation. Investing in this authentic component maintains engine performance and extends overhaul intervals in mining, construction, and long‑haul applications.
Filter Oil Pipe Assembly
Маслопровод фильтра
Tubería del filtro de aceite
The AZ220310000019 pipe assembly is fabricated from seamless, cold‑drawn steel tubing (St37.4 grade) that meets DIN 2391 specifications, ensuring high burst strength and fatigue resistance. The end fittings are forged from carbon steel and precision‑machined to create a leak‑tight seal with O‑ring bosses or threaded connections. All bends are formed using CNC mandrel bending to maintain consistent wall thickness and prevent flow restriction. The assembly is then zinc‑plated and yellow‑passivated to provide exceptional corrosion resistance against engine oil and environmental exposure.
Each AZ220310000019 assembly undergoes 100% pressure testing at 50 bar (5x operating pressure) to verify integrity. The fittings are inspected for thread form and surface finish. The pipe is also subjected to a cleanliness flush to remove any manufacturing debris, ensuring that no contaminants enter the lubrication system. This meticulous quality control guarantees that the oil pipe delivers reliable performance under the high‑pressure, high‑vibration conditions found in Howo diesel engines.
The table below provides detailed technical data for the genuine SINOTRUK HOWO AZ220310000019 filter oil pipe assembly. These specifications are essential for verifying compatibility and understanding its performance capabilities.
| Parameter | Specification | Details |
|---|---|---|
| OEM Part Number | AZ220310000019 | SINOTRUK HOWO Original Code |
| Product Name | Filter Oil Pipe Assembly | Connects filter to engine block |
| Tube Material | Seamless cold‑drawn steel (St37.4) | DIN 2391 |
| Fitting Material | Carbon steel, forged | Zinc‑plated, yellow passivated |
| Tube Outer Diameter | 18 mm | ±0.1 mm |
| Wall Thickness | 2.0 mm | High pressure rating |
| End Fitting Type | 24° cone with O‑ring (DIN 2353) | Leak‑proof |
| Thread Size | M22 x 1.5 (filter side) / M18 x 1.5 (block side) | Metric fine thread |
| Overall Length | 385 mm (centerline) | As per original routing |
| Burst Pressure | ≥ 250 bar | Safety factor >5 |
| Operating Pressure | ≤ 30 bar (continuous) | Suitable for all Howo engines |
| Temperature Range | -40°C to +150°C | Compatible with all engine oils |
| Applicable Engines | WD615, MC11, MC13, D10 series | Verify filter location |
| Included Hardware | Copper sealing washers (2 pcs) | For banjo fittings if applicable |
The AZ220310000019 filter oil pipe assembly is a direct OEM replacement used on Howo engines to carry filtered oil from the spin‑on or cartridge filter head to the main oil gallery in the cylinder block. It ensures that the oil, after being cleaned of contaminants, reaches the crankshaft bearings, connecting rods, camshaft, and turbocharger with minimal pressure drop. The pipe’s precise routing avoids contact with hot exhaust components and moving parts, ensuring long‑term reliability.
In chassis applications, this pipe assembly is also used in remote filter mounts for auxiliary systems, such as hydraulic oil filtration for dump truck hoists or PTO circuits. A failure of this pipe can result in sudden oil loss, leading to catastrophic engine damage. Using the genuine AZ220310000019 guarantees that the pipe’s material, bends, and fittings match the original design, providing leak‑free service and peace of mind. It is commonly used in Howo T7H, A7, and classic Howo‑7 trucks with WD615, MC11, MC13, or D10 engines.
When replacing the oil pipe, always inspect the filter head and engine block threads for damage. Replace the sealing washers or O‑rings with new ones. Torque the fittings to the values specified in the service manual (typically 50‑60 Nm).
Correct installation of the AZ220310000019 pipe assembly is essential to prevent leaks and ensure proper oil flow. Follow these steps:
Drain the engine oil and remove the old pipe assembly. Clean the sealing surfaces on the filter head and engine block. Inspect threads for damage; if damaged, repair using a thread insert.
Lubricate the O‑rings or install new copper washers. Position the new pipe assembly and hand‑tighten both ends. Ensure the pipe is not under stress and has clearance from other components. Torque to specification using a crow’s foot wrench if necessary.
Refill with engine oil. Run the engine and check for leaks at both fittings. Verify oil pressure on the dashboard gauge. After a short test drive, re‑check for leaks.
A damaged or worn oil pipe can lead to oil leaks and pressure loss. Common signs that replacement is needed include:
If any of these symptoms are observed, immediate replacement with a genuine AZ220310000019 is recommended. A sudden pipe rupture can cause complete oil loss and engine seizure, resulting in costly repairs and downtime.
Precision manufacturing and 100% pressure testing ensure leak‑free operation, protecting your engine from oil starvation and costly failures.
By maintaining correct oil flow and pressure, the genuine pipe reduces wear on bearings and turbochargers, extending overhaul intervals.
CNC‑bent to match original routing, the pipe installs without modification, saving time and ensuring clearance from hot or moving parts.
To maximize the service life of your AZ220310000019 oil pipe assembly, follow these best practices:
By adhering to these guidelines, you ensure that the AZ220310000019 pipe performs optimally throughout its intended service interval.
Aftermarket oil pipes are often made from lower‑grade tubing with thinner walls, inaccurate bends, and poorly machined fittings. This can lead to stress cracks, leaks, and even catastrophic failure under high pressure. The genuine AZ220310000019 is manufactured to the exact specifications of the original equipment, using premium seamless steel and precision‑forged fittings. It undergoes rigorous testing, including burst pressure and fatigue cycling, to ensure it can withstand the demanding conditions of heavy‑duty diesel operation.
By choosing authentic SINOTRUK HOWO parts, you protect your investment and ensure your truck maintains its reliability and resale value. The Sinotruk howo parts catalog includes a full range of engine and chassis components engineered for maximum durability. For fleet managers and owner‑operators who demand the best, the genuine AZ220310000019 is the only responsible choice.
The AZ220310000019 filter oil pipe assembly is used across a wide range of Howo models: T7H, A7, and classic Howo‑7 series equipped with WD615, MC11, MC13, and D10 engines. It fits both spin‑on and cartridge filter housings; always verify the thread sizes and routing with the service manual.
Each AZ220310000019 is individually packaged in a sealed plastic bag with VCI paper to prevent corrosion. The package includes copper sealing washers and an instruction sheet. For bulk orders, pipes are shipped in sturdy cardboard boxes with internal supports to prevent bending.
Production of the AZ220310000019 takes place in IATF 16949 certified facilities, using CNC tube benders and orbital welding where applicable. In‑process inspection includes dimensional checks, burst testing, and cleanliness verification. Statistical process control ensures that every assembly meets the tight tolerances required for leak‑free installation on Howo trucks.
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