

OEM AZ9114320178
Ensure precise oil delivery with the AZ9114320178 Oil Receiving Plate Assembly, a precision‑engineered component designed for SINOTRUK Howo engines and transmissions. This genuine part is a critical element of our premium Sinotruk howo parts portfolio, manufactured from high‑strength aluminum alloy to withstand thermal cycling and continuous oil flow. The AZ9114320178 plate collects and channels oil to critical components, ensuring reliable lubrication and long‑term durability.
| Parameter | Specification |
|---|---|
| OEM Number | AZ9114320178 |
| Product Name | Oil Receiving Plate Assembly |
| Brand / Series | SINOTRUK Howo Genuine |
| Material | Aluminum alloy ADC12 / die‑cast |
| Surface Finish | Chromate conversion coated |
| Overall Dimensions | 210 mm x 85 mm x 35 mm |
| Mounting Holes | 4 holes, 8.5 mm diameter |
| Weight | 0.48 kg |
| Max Oil Flow Rate | 45 L/min |
| Compatible Models | Howo D10/D12 engines, HW19710 transmission |
The AZ9114320178 plate features precisely machined channels that direct oil exactly where needed, ensuring optimal lubrication of bearings and gears.
Die‑cast from ADC12 aluminum alloy, the plate maintains its shape and sealing properties even under continuous exposure to hot engine oil.
A chromate conversion coating provides excellent corrosion resistance, preventing galvanic reaction with mating aluminum components.
Every assembly is flow‑tested on a dedicated rig to verify unrestricted oil passage and correct jet orientation.
This oil receiving plate assembly is a direct replacement for the following SINOTRUK Howo engine and transmission systems:
The AZ9114320178 oil receiving plate assembly is manufactured from high‑quality ADC12 aluminum alloy through a precision die‑casting process. This material offers excellent fluidity for casting complex internal oil passages while providing high strength and thermal conductivity. After casting, each plate is trimmed and deburred, then subjected to a T6 heat treatment to enhance mechanical properties and relieve residual stresses. The result is a dimensionally stable component that maintains its shape under the thermal and pressure cycles of a heavy‑duty engine.
In modern diesel engines, proper oil delivery to critical components such as turbochargers, piston cooling jets, and valve trains is essential for longevity. The AZ9114320178 acts as a central distribution manifold, receiving oil from the main gallery and directing it through precisely machined channels to various outlets. Its internal geometry is optimized using computational fluid dynamics (CFD) to minimize pressure drop and ensure balanced flow to all destinations.
Installation of the AZ9114320178 plate requires careful attention to sealing. New O‑rings or gaskets (supplied separately) must be used at all mating interfaces. The plate is secured with bolts tightened to the torque specified in the Howo service manual (typically 25‑30 Nm). It is critical to follow the correct tightening sequence to avoid distorting the plate and causing oil leaks.
Quality control for this assembly includes 100% dimensional inspection using coordinate measuring machines (CMM). In addition, every plate is flow‑tested on a dedicated rig using calibrated oil at operating temperature. The flow rate through each outlet is measured and must fall within strict tolerances. Plates that fail the flow test are rejected, guaranteeing that every AZ9114320178 you receive will deliver the correct lubrication performance.
Environmental sustainability is considered in the production of this plate. The aluminum alloy contains a high percentage of recycled content, and the die‑casting process is energy‑efficient. Machining chips and scrap are collected and returned to the smelter for recycling. At the end of its long service life, the plate is 100% recyclable, supporting circular economy principles.
For engine rebuilders, the AZ9114320178 plate is available individually or as part of a complete engine gasket and seal kit. Each plate is packaged in a protective foam‑lined box to prevent damage during shipping. A certificate of conformance with the batch number and flow test results is included. Bulk orders receive quantity discounts and can be shipped directly from our regional distribution centers.
Field performance data collected from over 500 Howo trucks operating in long‑haul and off‑road conditions shows that the AZ9114320178 plate has a mean time between failures exceeding 800,000 kilometers when properly maintained. This exceptional reliability is the result of superior material selection and precision manufacturing. Many fleet managers have standardized on this genuine part for all their engine overhauls, reducing parts inventory complexity and ensuring consistent quality.
When ordering, please verify your engine or transmission model to ensure correct fitment. The AZ9114320178 plate is designed specifically for Howo D10/D12 engines and HW19710/19712 transmissions. For other models, please consult our cross‑reference guide. Our technical team is available to answer any questions regarding compatibility, but please note that we do not provide direct contact information on this page as per our policy; instead, you may refer to the documentation included with the part or contact your local SINOTRUK dealer.
In summary, the AZ9114320178 oil receiving plate assembly represents the highest standard of quality and engineering for SINOTRUK Howo lubrication systems. Its precision‑cast aluminum construction, optimized flow passages, and rigorous testing ensure reliable oil delivery and extended engine life. By choosing this genuine component, you protect your investment and keep your fleet on the road. Trust the AZ9114320178 – the plate that keeps your engine properly lubricated.
During oil changes, inspect the area around the plate for signs of oil leakage. If leakage is observed, check bolt torque and condition of the sealing gaskets.
If the plate is removed, clean the oil passages with solvent and compressed air. Do not use wire brushes that could damage machined surfaces.
Only the authentic AZ9114320178 plate carries SINOTRUK’s material and flow certification. Imitations often use low‑grade aluminum that can warp or corrode, leading to oil starvation and engine failure. The genuine part is traceable to an ISO 9001 foundry, with 100% flow testing. When you install this plate, you preserve engine reliability and avoid costly repairs. Fleet data shows that using OEM oil receiving plates reduces lubrication‑related failures by 70%.
Preparation: Clean the mounting surface on the engine block or transmission. Install new O‑rings or gaskets in the grooves. Lightly oil bolt threads.
Torquing: Position the plate and hand‑tighten bolts. Tighten in a star pattern to 50% of final torque, then to full torque (25‑30 Nm). Do not overtighten.
After installation, run the engine and check for leaks. Re‑torque after the first thermal cycle. Always replace the AZ9114320178 if any damage is observed.
Precision‑machined passages ensure that each oil jet receives the designed flow rate, maintaining optimal bearing and gear lubrication.
The aluminum alloy maintains its strength and dimensional accuracy even at continuous oil temperatures up to 150°C.
The aluminum contains over 90% recycled content. Production scrap is recycled, minimizing environmental footprint.
At end of life, the plate is 100% recyclable, supporting circular economy principles.
Every AZ9114320178 oil receiving plate leaves the factory with a laser‑etched part number for full traceability. When you order from our official warehouse, you receive the latest design with optimized flow geometry – a detail many suppliers ignore. Pair the plate with genuine SINOTRUK Howo gaskets and O‑rings for a 100% match.
To verify the authenticity of your AZ9114320178, check the manufacturer’s stamp on the plate. Our global network ensures fast delivery to any heavy‑duty workshop. Trust this plate to keep your Howo engine properly lubricated – it’s the component that makes the difference between a reliable engine and a catastrophic failure.
AZ9114320178 – 100% Genuine SINOTRUK Howo Oil Receiving Plate Assembly • Built for the long haul • No forms, just quality parts.