PETERBILT 2618294 Marker Light Switch 17-03796 320

( Manufacturer Part Number: 2618294 ), ( Part Type: Switch Light ), ( Oem Part Number: 17-03796 )

Review PETERBILT Replaces 320 Marker Light Switch fits 2009

The **Peterbilt 2618294 17-03796 2009 320 Marker Light Switch** is a precision-engineered, heavy-duty electrical component designed specifically for Peterbilt Class 8 trucks manufactured in the 2009 model year, particularly those equipped with the **320 Series marker light system**. This rugged switch is crafted to withstand the demanding conditions of commercial trucking, ensuring reliable operation in extreme temperatures, high humidity, and constant vibration common challenges faced by long-haul and over-the-road fleets. Constructed from high-grade, corrosion-resistant materials, the switch features a durable metal housing that protects internal components from dust, moisture, and mechanical stress, thereby extending its operational lifespan and reducing the risk of premature failure. The **17-03796** designation indicates its compatibility with the truck s wiring harness and control modules, allowing seamless integration into the vehicle s electrical system without the need for modifications or additional adapters. This marker light switch operates via a simple yet robust toggle mechanism, providing clear, tactile feedback to the driver when activating or deactivating the vehicle s marker lights, which are essential for visibility during low-light conditions, nighttime driving, and adverse weather. Whether used for compliance with DOT regulations or enhancing safety on the road, this switch delivers consistent performance, minimizing downtime and ensuring that trucks remain operational and visible under all circumstances. For fleet managers and truck owners seeking a direct OEM replacement part, the **Peterbilt 2618294 17-03796** stands as a dependable solution, combining durability, ease of installation, and compatibility with the original equipment specifications.

### Pros and Cons of Buying a Peterbilt 2618294 (2009 Model with 17-03796 and 320 Marker Light Switch)

#### **Overview**

The Peterbilt 2618294 is a semi-truck model from 2009, equipped with a **320 marker light switch** (part number 17-03796). This vehicle is a heavy-duty Class 8 truck, likely designed for long-haul freight or regional hauling. Below is a detailed breakdown of its advantages and disadvantages.

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### **Pros**

1. **Reliability of Peterbilt Engines**

- Peterbilt trucks are known for their durable engines, particularly when paired with Detroit Diesel or Cummins powerplants. The 2009 model likely features a robust engine that, with proper maintenance, can last well beyond 1 million miles.

- The **320 marker light switch** suggests it may have been equipped with a **Detroit Diesel Series 60** or **Cummins ISX**, both of which are well-regarded for longevity and fuel efficiency compared to older models.

2. **High Resale Value**

- Peterbilt trucks generally hold their value better than some competitors due to their reputation for quality and durability. A well-maintained 2009 model can still fetch a decent resale price, especially if it has a clean title and service records.

3. **Modern Features for the Era**

- Enhanced **Eco-Select** (if equipped) for better fuel economy.

- Upgraded **driver aids** like improved braking systems and suspension.

- More ergonomic cabs, which can reduce driver fatigue on long hauls.

- The **320 marker light switch** is a standard component for visibility, ensuring compliance with DOT regulations.

4. **Strong Aftermarket Support**

- Peterbilt trucks have a vast aftermarket, meaning parts like the **17-03796 marker light switch** are widely available. This makes repairs and upgrades easier and more affordable.

- Dealerships and independent shops specializing in Peterbilt models are common, ensuring expertise in maintenance and diagnostics.

5. **Fuel Efficiency (Compared to Older Models)**

- While not as efficient as modern trucks with **EGR deletes** or **DPF systems**, the 2009 model still offers better fuel economy than pre-2000 trucks, especially if it has been retrofitted with **aerodynamic improvements** (e.g., skirts, fairings).

6. **Lower Purchase Price**

- Compared to newer models, a 2009 Peterbilt will cost significantly less upfront. This makes it an attractive option for buyers on a budget or those looking to minimize initial investment.

7. **Proven Durability in Harsh Conditions**

- Peterbilt trucks are built to withstand extreme weather, rough roads, and heavy loads. The **2009 chassis** is robust enough for long-term use in demanding industries like construction or logistics.

8. **Customization Options**

- **Exhaust modifications** for better horsepower.

- **LED lighting upgrades** (replacing older marker lights).

- **Suspension or brake upgrades** for improved handling.

---

### **Cons**

1. **Age-Related Wear and Tear**

- **Engine rebuilds** (if the original engine is approaching its lifespan).

- **Transmission overhauls** (older manual or automatic transmissions can fail without proper care).

- **Suspension and frame rust** (common in older trucks exposed to salt or moisture).

- The **320 marker light switch** may also be nearing the end of its lifespan, requiring eventual replacement.

2. **Emissions Compliance Issues**

- The 2009 model was built to **EPA 2007 emissions standards**, which are stricter than pre-2004 regulations but less forgiving than modern **2010 standards**. This means:

- **EGR (Exhaust Gas Recirculation) systems** may clog, reducing performance.

- **DPF (Diesel Particulate Filter) requirements** (if equipped) can be costly to maintain.

- **Smog checks** may be more difficult to pass, especially in states with strict emissions testing.

3. **Higher Maintenance Costs Over Time**

- **Fuel injectors** failing or requiring cleaning.

- **Turbocharger failures** (common in high-mileage diesels).

- **Electrical system issues** (wiring harnesses degrade over time).

- The **marker light switch (17-03796)** may also fail, requiring replacement parts for older models can be pricier than OEM.

4. **Driver Comfort and Technology Limitations**

- **Advanced telematics** (real-time tracking, diagnostics).

- **Automatic emergency braking (AEB)** or **collision avoidance systems**.

- **Modern infotainment or climate control** (older HVAC systems may be less efficient).

- The cab may feel **less ergonomic** by today s standards, leading to increased driver fatigue on long routes.

5. **Insurance and Financing Challenges**

- **Insurance premiums** for older trucks are typically higher due to perceived higher risk of breakdowns.

- **Financing options** may be limited compared to newer models, and lenders may require a **higher down payment** or **shorter loan term**.

6. **Parts Availability and Lead Times**

- While parts for the **17-03796 marker light switch** and other components are available, **lead times can be longer** than for newer trucks. Some specialized parts may require ordering from multiple suppliers.

- **OEM vs. aftermarket parts** can vary in quality, and some critical components (e.g., turbochargers) may be expensive to replace.

7. **Potential for Hidden Mechanical Issues**

- **Cracked engine blocks** (common in high-mileage diesels).

- **Worn-out drivetrain components** (universal joints, axles).

- **Corroded fuel tanks or lines** (leading to leaks).

- A **pre-purchase inspection (PPI)** is **highly recommended** to avoid costly surprises.

8. **Fuel Economy Limitations**

- While better than pre-2000 trucks, the **2009 model will not match the fuel efficiency of modern trucks** with **aerodynamic upgrades, hybrid systems, or advanced turbocharging**.

- **Diesel prices** continue to fluctuate, making fuel costs a significant ongoing expense.

9. **Resale Depreciation**

- Even well-maintained trucks lose value over time. A 2009 Peterbilt will depreciate further as newer models enter the market, reducing long-term equity.

10. **Regulatory and Compliance Risks**

- **DOT inspections** may flag older trucks for **mechanical failures** more frequently.

- **State-specific regulations** (e.g., emissions testing, weight limits) could impose additional restrictions or fines.

---

### **Conclusion**

Buying a **2009 Peterbilt 2618294 with a 320 marker light switch (17-03796)** can be a **cost-effective choice** for buyers who prioritize **durability, reliability, and lower upfront costs**. The truck s **proven engine, strong aftermarket support, and decent resale value** make it a viable option for **long-haul operators, fleet owners, or buyers on a tight budget**.

- **Higher long-term maintenance costs**.

- **Potential emissions and compliance issues**.

- **Outdated technology and driver comfort**.

- **Risk of hidden mechanical failures**.

- **Experienced fleet owners** who can manage maintenance proactively.

- **Buyers who plan to keep the truck for 5 years** and invest in upkeep.

- **Individuals or small businesses** who cannot afford a newer model but need a reliable workhorse.

For **casual buyers, first-time truck owners, or those seeking modern efficiency**, a **newer Peterbilt (2015 model) or a well-maintained used truck with fewer miles** would be a **safer and more cost-effective choice** in the long run.

---

### **Final Recommendation**

You have **access to a trusted mechanic** for regular inspections.

You are **prepared for higher maintenance costs** (budget **$10,000 $20,000 annually** for upkeep).

The truck has a **clean title and full service records** (avoid salvage or rebuilt titles).

You **pass a thorough pre-purchase inspection** (

Details:

Replaces 17-03796 2009 PETERBILT 320 MARKER LIGHT SWITCH 3927673: 'TOGGLE. If not, let us know how to earn your 5-star rating.

part #: 2618294 prices

• $60.00-$99.69

specifications tusilap:

• for makes: Peterbilt
• for years: 2009
• mpn: 2618294
• part type: Switch Light
• oem part number: 17-03796

seller tusilap:

• # reviews: 9689
• city: Spokane, WA
• rating: 98.9%

shipping tusilap:

• transit: 4-10 Days
• cost: $0.00
• service: UPS Ground
• carrier: UPS
• class: Standard
• type: Fixed

returns tusilap:

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

general tusilap:

• Commercial Truck Parts > Lighting > Other Lighting
• condition: Used

payments tusilap:

• other
• credit card: Diners-club
• wallet: Paypal

offer tusilap:

• started: March 14, 2026
• sold: 0
• quantity: 1
• options: Ship-to-home
• availability: In Stock

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