TRW/ROSS TAS65004 Steering Gear Rack FLD120 Gear/rack

( Brand: Trw/ross ), ( Manufacturer Part Number: TAS65004 ), ( Part Type: Steering Gear Rack )

Review TRW/ROSS Freightliner Steering Gear/rack Used

The **TRW/Ross TAS65004 Freightliner FLD120 Steering Gear/Rack Assembly** is a high-performance, precision-engineered hydraulic steering system designed exclusively for the Freightliner Cascadia and Century Class trucks, specifically tailored to the FLD120 chassis configuration. This robust and reliable steering gear incorporates advanced hydraulic technology to deliver smooth, responsive, and effortless control, even under the most demanding operating conditions. Built to withstand the rigors of heavy-duty commercial transportation, the TAS65004 features a durable cast-iron housing reinforced with high-strength steel components, ensuring long-lasting durability and resistance to wear from constant use. The system operates on a closed-loop hydraulic circuit, utilizing a dedicated steering pump that provides consistent pressure to the rack-and-pinion mechanism, minimizing steering effort while maximizing precision. This design eliminates the need for excessive force on the steering wheel, reducing operator fatigue during extended hauls and improving overall maneuverability in tight spaces, such as parking lots, loading docks, or urban environments.

The TAS65004 is engineered with a **rack-and-pinion** configuration, which translates direct wheel movements into linear motion, allowing for a direct and intuitive steering response. The pinion gear, driven by the hydraulic cylinder, engages with the rack, which is connected to the steering knuckles via tie rods, ensuring synchronized movement across all wheels. This system is further enhanced by a **self-centering feature**, which helps maintain alignment and reduces the effort required to return the steering wheel to its neutral position after a turn. Additionally, the steering gear incorporates a **hydraulic power assist** mechanism, which amplifies the driver s input, making it easier to navigate heavy loads, steep grades, or challenging terrain without compromising control.

For enhanced safety and operational reliability, the TAS65004 is equipped with a **fail-safe hydraulic system** that includes a built-in pressure relief valve and a secondary return line, preventing excessive pressure buildup and ensuring continuous steering functionality even in the event of a minor hydraulic leak. The system also features a **steering lock mechanism**, which secures the steering wheel in a neutral position when the truck is parked, preventing unauthorized movement and enhancing security. Maintenance is streamlined thanks to the modular design, which allows for easy access to critical components such as the hydraulic pump, seals, and bearings. The system is compatible with Freightliner s proprietary hydraulic fluid specifications, ensuring optimal performance and longevity when paired with the correct lubricants.

Designed with **OEM-level quality**, the TAS65004 adheres to strict manufacturing standards, incorporating precision-machined parts, high-grade seals, and corrosion-resistant coatings to withstand harsh environmental conditions, including exposure to salt, moisture, and extreme temperatures. This steering gear is a direct replacement for the original equipment manufacturer (OEM) unit, ensuring a perfect fit and seamless integration with the Freightliner FLD120 chassis. Whether deployed in regional haulage, long-haul freight, or specialized applications such as refuse or construction trucks, the TAS65004 delivers unmatched performance, durability, and driver comfort, making it an indispensable component for modern commercial fleets seeking reliability and efficiency.

### **Pros and Cons of Buying a TRW/Ross TAS65004 Freightliner FLD120 Steering Gear/Rack**

#### **Pros**

1. **High Reliability and Durability** TRW/Ross is a well-established brand in the heavy-duty trucking industry, known for producing robust steering systems designed for long-term use in harsh conditions. The FLD120 is specifically engineered for heavy-duty applications, including long-haul and off-road trucks.

2. **Proven Performance in Heavy-Duty Trucks** This steering gear is commonly used in Freightliner Cascadia, Century, and other heavy-duty models, meaning it has been extensively tested in real-world conditions. Its design ensures smooth operation under high loads and stress.

3. **Compatibility with Freightliner FLD120** As a direct-fit part for the Freightliner FLD120 steering system, it ensures seamless integration without requiring extensive modifications. This reduces installation time and potential compatibility issues.

4. **Aftermarket Support and Availability** TRW/Ross parts are widely available through authorized dealers and online marketplaces, making repairs and replacements easier. The brand also has a strong aftermarket support network for diagnostics and troubleshooting.

5. **Improved Steering Response and Precision** The TAS65004 is designed to provide better steering feel and control, which can enhance driver comfort and safety, especially in large or heavy vehicles.

6. **Long Service Life with Proper Maintenance** When maintained according to manufacturer guidelines, this steering gear can last for hundreds of thousands of miles, reducing the need for frequent replacements.

7. **Warranty and Guarantee Coverage** Purchasing from a reputable dealer often includes warranty coverage, providing peace of mind against premature failure due to manufacturing defects.

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#### **Cons**

1. **High Initial Cost** Like most high-quality aftermarket or OEM replacement parts, the TAS65004 can be more expensive than lower-end or generic alternatives. This may be a significant upfront investment, especially for fleets or individual owners on a tight budget.

2. **Installation Complexity** Replacing a steering gear requires specialized tools, mechanical skill, and sometimes disassembly of other components (e.g., steering column, linkages). If not installed correctly, it could lead to premature wear or failure. Professional installation is recommended, adding to the overall cost.

3. **Potential for Counterfeit or Low-Quality Parts** Purchasing from unapproved sellers may result in counterfeit or substandard parts that fail prematurely. Always buy from authorized TRW/Ross dealers or trusted suppliers to avoid this risk.

4. **Maintenance Requirements** While durable, the steering gear still requires regular maintenance, including lubrication, inspection for leaks, and alignment checks. Neglecting maintenance can lead to costly repairs down the line.

5. **Limited Customization** This is an OEM or direct-fit replacement part, meaning it may not offer customizable features (e.g., different gear ratios or steering assist levels) that some aftermarket alternatives might provide.

6. **Weight Considerations** Heavy-duty steering gears like this one add weight to the vehicle, which could slightly impact fuel efficiency or handling dynamics, though the difference is typically minimal for large trucks.

7. **Potential for Compatibility Issues with Modified Vehicles** If the truck has been heavily modified (e.g., suspension upgrades, custom steering linkages), the TAS65004 may not integrate perfectly, requiring additional adjustments or parts.

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### **Conclusion**

The **TRW/Ross TAS65004 Freightliner FLD120 steering gear/rack** is a high-quality, reliable replacement part ideal for heavy-duty Freightliner trucks. Its strengths lie in durability, compatibility, and performance, making it a strong choice for fleets or owners prioritizing long-term reliability and safety. However, the higher cost, installation complexity, and maintenance requirements must be carefully considered.

For most operators running Freightliner trucks in demanding conditions, the benefits outweigh the drawbacks, especially when compared to lower-quality alternatives. If budget is a concern, it may be worth exploring slightly older or refurbished units, but always ensure they come with a warranty or certification of authenticity.

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### **Recommendation**

- You need a direct-fit, high-quality replacement for a Freightliner FLD120 steering system.

- Reliability and longevity are top priorities for your truck s operation.

- You are prepared for the upfront cost and potential installation expenses.

- You plan to purchase from an authorized dealer to avoid counterfeit parts.

- You are operating on a very tight budget and cannot afford the premium price.

- The truck has extensive modifications that may conflict with the steering gear s fitment.

- You lack the mechanical expertise or tools to install it properly (professional installation is highly recommended).

**Final Verdict:** For most heavy-duty Freightliner applications, the TAS65004 is a **strong, well-supported choice** that justifies its cost with superior performance and durability. Always verify the part s authenticity and ensure proper installation to maximize its lifespan.

Details:

Cast#: TAS652295 Stamp / model: TAS65004 Lines: 2 FREE SHIPPING. We'll do our best to find it so you don't have. If you can't find what you re looking for let us do it. Questions, comments or concerns.

Items shipped UPS Ground cannot go to APO/FPO or Post Office Boxes.

part #: tas65004 prices

• $89.99-$1612.08

specifications steragebo:

• for makes: Freightliner
• brand: Trw/ross
• mpn: Tas65004
• part type: Steering Gear Rack

returns steragebo:

• paid by: Buyer
• policy: Returns Accepted
• time: 30 Days

shipping steragebo:

• cost: $0.00
• type: Fixed
• transit: 4-8 Days
• service: Standard
• class: Standard

offer steragebo:

• quantity: 1
• availability: In Stock
• best offers: True
• sold: 0
• options: Ship-to-home
• started: May 8, 2026

general steragebo:

• condition: Used
• Commercial Truck Parts > Suspension Steering > Steering Gear Boxes Racks

payments steragebo:

• other
• credit card: Visa
• wallet: Google-pay

seller steragebo:

• # reviews: 6748
• city: Spencer, Iowa
• rating: 99.6%

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