Product Introduction

Structure

This 2L plastic transparent steering oil tank is a multi-material integrated hydraulic reservoir assembly, featuring a two-section structural design of a high-transparency PC (polycarbonate) upper tank and a reinforced PA66+GF lower base. T The lower base is integrally molded with threaded hydraulic oil ports (inlet and outlet) and mounting lugs, and the tank wall is marked with clear “MAX/MIN” oil level indicator lines for real-time oil level monitoring.

Performance

The PC transparent tank has excellent impact resistance, high temperature resistance and UV resistance, ensuring long-term clarity without yellowing and easy observation of oil quality and level. The PA66+GF lower base features high structural rigidity and oil resistance, capable of withstanding the hydraulic pressure impact of the steering system. The stainless steel filter core has high filtration precision (≥80μm) and corrosion resistance, effectively intercepting impurities in the oil.

Core Function

1. Serves as a dedicated 2L capacity reservoir for the heavy-duty truck power steering system, storing and supplying clean hydraulic oil for the steering gear and hydraulic pump.

2. Filters impurities and particulate matter in the hydraulic oil through the built-in stainless steel filter core, preventing wear and blockage of precision components such as the steering gear valve core.

3. Allows real-time visual monitoring of the hydraulic oil level and oil quality through the transparent tank body, facilitating timely oil replenishment and replacement to avoid steering system failure.

4. Cooperates with the breather valve on the cover to balance the internal and external pressure of the tank, ensuring the smooth circulation of hydraulic oil and the stable operation of the power steering system.

Plastic Transparent Steering Oil Tank (2L) 712W47301-0133 – Sinotruk Sitrak Genuine Replacement

When your Sitrak truck’s power steering system demands a reliable reservoir, the Plastic Transparent Steering Oil Tank (2L) 712W47301-0133 steps in as the perfect solution. Designed specifically for Sinotruk Sitrak heavy-duty vehicles, this transparent steering oil reservoir keeps your hydraulic fluid safely stored while giving you instant visual confirmation of oil levels. As a result, maintenance becomes faster, downtime shrinks, and your fleet stays on the road where it belongs.

At Mettlead, we supply this OEM-spec steering oil tank directly from our factory in China — meaning you get genuine quality at a competitive wholesale price, without the middleman markup. Whether you manage a repair workshop in Africa, a logistics fleet in Southeast Asia, or a parts distribution business in the Middle East, this component delivers the durability and precision fit your Sitrak trucks require.

Key Features and Benefits of the 712W47301-0133 Steering Oil Tank

This isn’t just another plastic container — it’s an engineered component that plays a critical role in your truck’s steering hydraulic circuit. Here’s what makes it stand out:

• Transparent Body for Easy Inspection: The clear plastic construction allows drivers and technicians to check power steering fluid levels at a glance, without removing caps or using dipsticks. Consequently, potential issues are spotted early before they escalate into costly repairs.
• 2-Liter Capacity: Sized precisely for the Sitrak steering system, this 2L reservoir holds the optimal volume of hydraulic oil to maintain consistent steering assist pressure under all operating conditions.
• High-Quality Engineering Plastic: Manufactured from durable, chemical-resistant plastic that withstands temperature fluctuations, vibration, and prolonged contact with power steering fluid — ensuring a long service life even in harsh environments.
• OEM Part Number 712W47301-0133: This exact part number guarantees a direct, bolt-on fit for compatible Sinotruk Sitrak models. There’s no guesswork, no modifications, and no compatibility headaches.
• Leak-Resistant Design: Precision-molded sealing surfaces and connection ports minimize the risk of fluid leaks, protecting both the steering system and surrounding engine bay components.
• Factory-Direct Pricing: Because Mettlead sources directly from certified manufacturers, you receive genuine-quality parts at prices that protect your profit margins.

Application and Vehicle Compatibility

The 712W47301-0133 Plastic Transparent Steering Oil Tank is specifically engineered for the following application:

• Compatible Brand: Sinotruk
• Compatible Series: Sitrak (汕德卡)
• System: Power Steering Hydraulic System
• Function: Stores and supplies power steering hydraulic fluid to the steering pump, ensuring smooth and responsive steering assist throughout the vehicle’s operation

This steering oil reservoir is a chassis-level component that sits within the power steering circuit. It feeds hydraulic oil to the steering pump, which in turn provides the assist force that makes maneuvering a fully loaded Sitrak truck feel effortless. Moreover, the transparent design serves as a built-in diagnostic tool — if the fluid appears dark, foamy, or drops below the minimum line, your maintenance team knows it’s time to act.

Looking for more Sitrak chassis components? Browse our full selection of chassis system parts or explore the complete Sitrak heavy-duty parts catalog for everything your fleet needs.

Technical Specifications

OEM/ODM Capabilities and Custom Packaging

At Mettlead, we understand that every distributor and fleet operator has unique branding and packaging requirements. That’s why we offer flexible OEM and ODM services tailored to your business needs:

• White-Label Packaging: Want to sell under your own brand? We provide neutral or custom-branded packaging so your customers see your name on every box.
• Custom Packaging Solutions: From individual poly bags to branded cartons with your logo, part numbers, and barcodes — we adapt our packaging to match your specifications.
• Strict Quality Control: Every steering oil tank undergoes rigorous inspection before shipment. We check for material integrity, dimensional accuracy, sealing performance, and surface finish to ensure zero-defect delivery.
• Bulk Order Support: Whether you need 50 pieces or 5,000, our production capacity scales to meet your demand with consistent lead times.
• Factory Visits Welcome: We encourage procurement managers to visit our facilities in China. Seeing our quality processes firsthand builds the trust that long-term partnerships require.

For a comprehensive overview of all available Sinotruk Sitrak components — from engine parts to electrical systems — visit our Sinotruk Sitrak Truck Parts Full Category Guide.

Frequently Asked Questions (FAQ)

What is the function of the 712W47301-0133 steering oil tank?

This transparent plastic reservoir stores power steering hydraulic fluid and supplies it to the steering pump. In other words, it acts as the heart of your steering assist system — without adequate fluid in this tank, your Sitrak’s steering would become heavy and unresponsive, especially under load.

Why is the steering oil tank made from transparent plastic?

Transparency is a deliberate engineering choice. It allows drivers and mechanics to visually inspect the fluid level and condition without disassembly. If the oil looks dark, contaminated, or falls below the minimum mark, you’ll know immediately that service is needed. This simple feature can prevent expensive pump or rack damage down the line.

How do I know if my steering oil tank needs replacement?

Several signs indicate it’s time for a new reservoir. Look for visible cracks or crazing in the plastic body, persistent fluid leaks around the tank connections, discoloration that obscures fluid visibility, or a warped shape caused by heat damage. Additionally, if the mounting points are broken or the cap no longer seals properly, replacement is the safest course of action.

Is this part a direct fit for all Sitrak truck models?

The OEM part number 712W47301-0133 is designed for specific Sitrak configurations. While it fits the majority of Sitrak models equipped with this steering system design, we recommend confirming the part number against your vehicle’s parts manual or VIN. If you’re unsure, simply send us your truck details and our team will verify compatibility for you.

Can I use aftermarket steering fluid in this tank?

The tank itself is compatible with standard power steering fluids recommended by Sinotruk. However, always follow the manufacturer’s fluid specification for your particular Sitrak model. Using incorrect fluid can damage seals within the steering system — the tank will hold whatever you pour in, but the pump and rack may not be as forgiving.

What causes a steering oil tank to crack or fail prematurely?

The most common culprits are prolonged UV exposure, extreme temperature cycling, overpressure from a blocked return line, and physical impact from road debris. Furthermore, using incompatible chemicals or solvents near the tank can degrade the plastic over time. Regular inspection helps catch early signs of wear before a complete failure occurs.

Ready to Order? Get Your Competitive Quote Today

As a procurement manager, you need reliable parts, competitive pricing, and a supplier who delivers on time — every time. Mettlead checks all those boxes. We’ve been supplying Chinese truck parts globally for years, and our clients keep coming back because we make their jobs easier.

Here’s what you get when you work with us:

• Factory-direct wholesale pricing on the 712W47301-0133 Steering Oil Tank
• Flexible MOQ to suit both trial orders and bulk procurement
• Fast, reliable international shipping with full tracking
• Secure payment options including T/T, L/C, and trade assurance
• Dedicated account support from inquiry to delivery

Don’t let steering system downtime cost your fleet money. Contact us now to request a quote, confirm part compatibility, or discuss your custom packaging needs. Our team typically responds within 24 hours — because in this business, speed matters just as much as quality.