1. Lighting Auto Parts For Sale
  2. sku: 10481236281641782
  3. KENWORTH 571.LD329A3

KENWORTH 571.LD329A3 Marker Light T680

fits make: Kenworth.

571.ld329a3 Kenworth T680 Cab Marker Light

( Manufacturer Part Number: 571.LD329A3 ), ( Part Type: Light )

Review KENWORTH Cab Marker Light

The **Kenworth W900 Series 571LD329A3 with T680 Marker Light** is a robust and meticulously engineered heavy-duty truck designed to deliver unmatched performance, reliability, and safety in the most demanding commercial and industrial applications. Built upon Kenworth s legendary W900 chassis platform, this model exemplifies the brand s commitment to innovation, durability, and driver-centric design. The **571LD329A3** designation signifies a long-wheelbase (LD) configuration with a **329-inch wheelbase**, optimized for stability, load capacity, and maneuverability in heavy-haul, construction, and regional transport operations. Its **T680 marker light** is a standout feature, offering superior visibility and compliance with stringent safety regulations. The **T680** is a high-performance, LED-based marker light system engineered to provide **360-degree illumination**, ensuring that the truck remains clearly visible in low-light conditions, fog, or adverse weather. This advanced lighting solution not only enhances safety by alerting other drivers to the truck s presence but also reduces the risk of collisions, making it an indispensable component for fleets operating in high-risk environments such as highways, construction sites, or rural routes. The marker light is strategically integrated into the truck s design, blending seamlessly with the aerodynamic contours of the cab while maximizing visibility without compromising the vehicle s structural integrity.

Under the hood, the **Kenworth 571LD329A3** is powered by a **high-efficiency diesel engine**, typically paired with a **transmission system** that balances torque, fuel economy, and towing capacity. The **T680 marker light** is not merely a functional accessory but a testament to Kenworth s engineering precision, featuring **durable, corrosion-resistant materials** and **waterproof seals** to withstand the harshest conditions, from extreme temperatures to heavy rain or snow. Its **low-power consumption** ensures it remains operational for extended periods without draining the vehicle s electrical system, while its **adjustable mounting options** allow for customization based on the truck s specific configuration, whether it s a standard cab-over-engine (COE) or a conventional chassis setup. The integration of this marker light system aligns with modern fleet management priorities, as it supports **telematics and safety monitoring** by providing real-time visibility data to drivers and dispatchers. Additionally, the **T680 s bright, uniform illumination** helps in adhering to regional and federal lighting regulations, avoiding fines and ensuring compliance with evolving safety standards.

Beyond its lighting capabilities, the **Kenworth 571LD329A3** is equipped with a suite of features that enhance its operational versatility. The **long-wheelbase design** provides superior stability when carrying heavy loads, reducing sway and improving handling on uneven terrain or steep grades. The **T680 marker light** is engineered to be **shock-resistant**, ensuring it remains functional even after encountering potholes, debris, or rough road conditions a critical consideration for trucks operating in construction or off-road environments. The cab itself is designed with **ergonomic controls, advanced driver aids, and climate control systems** to ensure operator comfort during long shifts, while the **integrated lighting system** contributes to a cleaner, more professional appearance. Whether deployed in **regional haulage, construction logistics, or specialized transport**, this truck and its **T680 marker light** combination represent a harmonious blend of **performance, safety, and durability**, making it a preferred choice for fleets that demand nothing less than excellence.

### Pros and Cons of Buying a Kenworth W570 (LD329A3, T680, Marker Light)

#### **Pros**

1. **Durability and Build Quality**

The Kenworth W570 is known for its robust construction, designed to withstand heavy-duty use over long distances. The LD329A3 engine is a proven workhorse, built for reliability in demanding conditions. The T680 transmission is a robust option, offering strong torque conversion and durability for long-haul operations.

2. **Fuel Efficiency**

The LD329A3 engine is optimized for fuel efficiency, particularly when paired with modern aftermarket upgrades like exhaust backpressure systems or aerodynamic improvements. Kenworth s aerodynamics and weight distribution also contribute to better fuel economy compared to older models.

3. **Advanced Technology and Driver Aids**

The W570 often comes equipped with modern features such as:

- **Eco-Drive** (adaptive cruise control and predictive braking)

- **Advanced driver-assistance systems** (blind-spot monitoring, lane-keeping assist)

- **Telematics and diagnostics** (for fleet management and maintenance tracking)

These features improve safety, reduce driver fatigue, and lower operational costs.

4. **Resale Value**

Kenworth trucks, especially well-maintained models like the W570, retain strong resale value due to their reputation for longevity and reliability. This makes them a cost-effective long-term investment.

5. **Customization and Upgrade Options**

The W570 offers flexibility for customization, including:

- **Sleepers and cab configurations** (for long-haul or regional drivers)

- **Aftermarket engine upgrades** (e.g., turbocharger or fuel system modifications for better power)

- **Suspension and tire upgrades** (for improved comfort and load capacity)

Buyers can tailor the truck to their specific needs, whether for freight hauling, construction, or regional delivery.

6. **Low Operating Costs**

With proper maintenance, the LD329A3 engine and T680 transmission are designed to minimize downtime. Kenworth s focus on reliability reduces unexpected repair costs, making it a cost-effective choice for fleets or independent operators.

7. **Comfort and Ergonomics**

The W570 s cab design prioritizes driver comfort with:

- **Adjustable seating and climate control**

- **Noise reduction** (soundproofing and insulation)

- **Easy-to-reach controls** (reducing driver fatigue on long trips)

This is particularly valuable for long-haul drivers who spend extended periods behind the wheel.

8. **Warranty and Support**

Kenworth offers robust warranty coverage (often extending to 24 months or more with maintenance plans). Their dealer network provides reliable service and parts support, ensuring minimal disruptions.

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#### **Cons**

1. **High Initial Cost**

The Kenworth W570 is a premium truck, and the LD329A3 engine, T680 transmission, and advanced features come with a significant upfront price tag. This can be a barrier for small businesses or independent operators with limited capital.

2. **Maintenance and Repair Expenses**

While the W570 is durable, its advanced systems (e.g., electronics, turbochargers, and aftermarket upgrades) require specialized knowledge for repairs. Labor costs at dealerships or certified shops can be higher than for older or simpler models.

3. **Fuel and Emissions Compliance**

The LD329A3 is a diesel engine, which means it must comply with evolving emissions regulations (e.g., EPA Tier 4 or later). Retrofitting or upgrading for compliance can add to the cost, and some regions may have restrictions on older diesel models.

4. **Depreciation Over Time**

While the W570 holds its value well, like all trucks, it will depreciate. The rate of depreciation depends on mileage, maintenance history, and market demand. High-mileage units may lose value faster than lower-mileage counterparts.

5. **Complexity of Operation**

The W570 s advanced features (e.g., telematics, driver-assistance systems) require training for new operators. There may be a learning curve for drivers unfamiliar with modern truck technology, potentially increasing training costs.

6. **Availability of Parts**

While Kenworth has a strong dealer network, some aftermarket or specialized parts (especially for older models) may take longer to source. This could lead to delays in repairs or maintenance.

7. **Weight and Maneuverability**

The W570 is a heavy-duty truck, which can make it less agile in tight spaces or urban environments. For operations requiring frequent stops or navigating narrow roads, this can be a drawback.

8. **Insurance Costs**

Due to its high value and advanced features, insuring a W570 may be more expensive than insuring a standard or older model. Fleet operators should factor this into their budget.

---

### **Conclusion**

The Kenworth W570 (LD329A3, T680) is a well-engineered, high-performance truck suited for long-haul, regional, or heavy-duty freight operations. Its strengths lie in durability, fuel efficiency, advanced technology, and strong resale value, making it an excellent choice for fleets or operators prioritizing reliability and operational efficiency. However, the high initial cost, maintenance complexity, and potential for higher operating expenses (insurance, repairs) must be carefully considered.

For buyers with the budget and need for a long-lasting, low-maintenance truck, the W570 is a strong recommendation. Independent operators or small businesses with limited capital may find it more challenging to justify the upfront investment, and they might consider a slightly older model or a different manufacturer for cost savings.

**Final Recommendation:** Purchase the Kenworth W570 if:

- You operate long distances or require a heavy-duty truck for high-mileage use.

- You prioritize fuel efficiency, advanced safety features, and long-term reliability.

- You have access to budgeting for high initial costs and potential maintenance expenses.

- You plan to keep the truck for an extended period (5 years) to maximize its value.

Consider alternatives (e.g., Freightliner Cascadia, Peterbilt 579) if:

- You need a slightly lower upfront cost or different feature set.

- Your operations are more urban or require frequent stops, where maneuverability is critical.

- You have limited experience with advanced truck technology and need simpler models.

Details:

If it is included in this listing, its shown the photo. Location: NC Skid 955 box 1. FOR YOUR CONSIDERATION: Kenworth T680 571.LD329A3 Cab Marker Light. If we say the item works, then it was tested to best of our ability.

Item came from a 2015 Kenworth T680. The customer must know their part number and purchase accordingly.

part #: 571ld329a3 prices

  • $22.99-$450.00

specifications tusilap:

  • for makes: Kenworth
  • mpn: 571.ld329a3
  • part type: Light

returns tusilap:

  • policy: No Returns

general tusilap:

  • condition: Used
  • Commercial Truck Parts > Lighting > Clearance Marker Lights

shipping tusilap:

  • class: Standard
  • type: Fixed
  • transit: 3-7 Days
  • cost: $0.00
  • service: Standard

offer tusilap:

  • started: February 16, 2026
  • options: Ship-to-home
  • sold: 0
  • quantity: 1
  • availability: In Stock

seller tusilap:

  • # reviews: 49773
  • rating: 99.5%
  • city: West Branch, Michigan

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  • other
  • credit card: Discover
  • wallet: Apple-pay
for makes: kenworth, part type: light,
category: auto parts > commercial truck parts > lighting > clearance marker lights, sku: 10481236281641782,
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