1. Other Lighting Lamps Vintage Car Truck Parts For Sale
  2. sku: 15704624457298603
  3. CHEVROLET 1566134

CHEVROLET 1566134 Center High Mount Light

fits model: 2500, Silverado. make: Chevrolet. year: 2021.

1566134 Chevrolet Used Center High Mount Stop Light Fits 2021 Silverado 2500 Pickup Gr

( Manufacturer Part Number: 1566134 ), ( Warranty: 90 Day ), ( Genuine Oem: No ), ( Interchange Item Code: 176 ), ( Color: Black ), ( Type: Center High Mount Stop Light )

Review CHEVROLET Used High Mount Stop Light Pickup Gr fits SILVERADO 2500 2021

The **Chevrolet 1566134 Center High-Mount Stop Lamp (CHMSL) for the 2021 Silverado 2500HD** is a precision-engineered lighting component designed to enhance visibility and safety for the full-size Chevrolet pickup truck. This high-quality, factory-specification stop lamp is strategically positioned at the center of the vehicle s rear, ensuring that its bright, amber illumination is immediately visible to drivers in the lane behind, even in low-light conditions or heavy traffic. Crafted from durable, high-impact plastic with a clear, UV-resistant lens, the CHMSL is built to withstand the rigors of daily driving, including exposure to harsh weather, road debris, and the occasional bump from off-road adventures. The lamp features a robust, corrosion-resistant mounting bracket, ensuring a secure and long-lasting fit that aligns perfectly with the Silverado s sleek rear design. Whether navigating city streets, highway merges, or construction zones, this center high-mount light provides an extra layer of safety by clearly signaling braking intentions to surrounding drivers, reducing the risk of rear-end collisions. Ideal for both original equipment replacement and aftermarket upgrades, this part adheres to strict OEM standards, guaranteeing a seamless integration with the truck s existing lighting system. Its compact yet effective design ensures it complements the Silverado s rugged yet refined aesthetic while delivering reliable performance year after year.

### **Pros and Cons of Buying a 2021 Chevrolet Silverado 2500HD (VIN 1566134) with a Center High-Mount Stop Light (CHMSL)**

#### **Pros**

1. **Reliability and Durability** The Chevrolet Silverado 2500HD is known for its robust build, particularly in the heavy-duty (HD) trim. The 6.6L Duramax diesel engine (if equipped) is well-regarded for its longevity, fuel efficiency, and towing capacity. The 2021 model year saw improvements in engine tuning and emissions compliance, reducing common issues seen in earlier years.

2. **High Towing and Hauling Capacity** The Silverado 2500HD is designed for serious work, with a maximum towing rating of up to **13,300 lbs** (depending on configuration) and payload capacities exceeding **2,000 lbs**. This makes it ideal for commercial use, off-roading, or heavy-duty tasks.

3. **Center High-Mount Stop Light (CHMSL)** The CHMSL is a standard feature on many Silverado models, including this one. It improves visibility for other drivers, especially in stop-and-go traffic, reducing the risk of rear-end collisions. This is particularly useful for work trucks, which may carry loads that obscure rear lights.

4. **Modern Safety Features** The 2021 Silverado 2500HD comes with advanced safety tech, including:

- **Forward Collision Alert** (with automatic emergency braking)

- **Blind Spot Monitoring** (with rear cross-traffic alert)

- **Traffic Sign Recognition**

- **Lane Keep Assist** (in higher trims)

- **Stability Control and Traction Control** (standard)

These features enhance safety, which is crucial for a vehicle used in work or heavy-duty applications.

5. **Comfort and Ergonomics** The Silverado 2500HD offers a spacious cabin with premium materials in higher trims. The seating is supportive, and the infotainment system (if equipped with a touchscreen) is user-friendly. The suspension is tuned for both on-road comfort and off-road capability.

6. **Resale Value** Chevrolet s full-size trucks, especially the Duramax-equipped models, hold their value relatively well compared to some competitors. The 2021 Silverado 2500HD is still a solid choice for resale, particularly if well-maintained.

7. **Customization Options** The Silverado 2500HD offers a wide range of trim levels (e.g., **High Country, Big Horn, RST, Custom**) and optional packages (e.g., **Off-Road, Workspace, Tech**), allowing buyers to tailor the vehicle to their needs.

8. **Diesel Engine Efficiency** If the vehicle is equipped with the **Duramax 6.6L diesel**, it delivers excellent fuel economy for a heavy-duty truck (around **12-15 MPG combined**), lower operating costs, and superior torque for towing.

9. **Warranty Coverage** The 2021 Silverado 2500HD comes with a **5-year/60,000-mile basic warranty** and an extended **10-year/100,000-mile powertrain warranty** for the Duramax diesel (if applicable). This provides peace of mind for long-term ownership.

10. **Off-Road Capability** Higher trims (e.g., **Big Horn, RST**) come with off-road packages featuring **skid plates, all-terrain tires, and a locking rear differential**, making it suitable for rugged environments.

---

#### **Cons**

1. **Higher Upfront Cost** The Silverado 2500HD is significantly more expensive than its lighter-duty counterparts (e.g., Silverado 1500). Even a used 2021 model will likely cost **$30,000 $50,000 **, depending on mileage, trim, and condition. This may be a barrier for some buyers.

2. **Maintenance and Repair Expenses** While the Duramax diesel is reliable, it requires **more frequent maintenance** than a gasoline engine, including:

- **DPF (Diesel Particulate Filter) regeneration** (every 500 700 miles if driven short distances)

- **EGR cooler replacement** (a known issue in some Duramax models, though less common in 2021)

- **Fuel system cleaning** (to prevent clogging)

- **More expensive parts** (e.g., turbochargers, injectors) if repairs are needed

Gasoline V8 models (e.g., **6.2L V8**) are cheaper to maintain but may have lower fuel efficiency and towing capacity.

3. **Fuel Economy Limitations** Even with the Duramax diesel, the Silverado 2500HD is not fuel-efficient. Expect **around 12 15 MPG combined**, which can add up in operating costs, especially for commercial use.

4. **Size and Maneuverability** The 2500HD is a **massive vehicle**, making parking, city driving, and tight-space navigation difficult. It may not be practical for urban commuters or those with limited storage space.

5. **Potential Electrical Issues** Some owners report **electrical gremlins**, such as:

- **Infotainment system glitches**

- **Sensor malfunctions** (e.g., tire pressure, blind spot cameras)

- **Power window or door lock failures**

These issues are more common in older models but can still occur in a 2021.

6. **Resale Depreciation** While the Silverado holds value better than some competitors, it still depreciates significantly. If you plan to sell or trade it in within a few years, you may not recoup much of the initial investment.

7. **Duramax-Specific Concerns (If Equipped)** Some Duramax engines from earlier years had issues with:

- **EGR cooler failures** (though 2021 models improved)

- **Oil consumption** (some owners report burning oil)

- **Turbocharger longevity** (premium fuel recommended)

However, the 2021 Duramax is more refined, and these issues are less prevalent.

8. **Limited Availability of Parts** As a discontinued model (Chevy shifted to the **Silverado 2500HD HDD** in 2022), finding **OEM parts** for a 2021 may become harder over time. Aftermarket parts may be necessary for repairs.

9. **Noise and Vibration** Some owners report **excessive wind noise** at highway speeds, especially with the CHMSL installed. The diesel engine can also be **loud in cabin**, though sound insulation improves in higher trims.

10. **Potential Hidden Damage** Since this is a used vehicle, there may be **hidden issues** such as:

- **Frame rust** (common in older trucks, though 2021 models should be fine if stored properly)

- **Transmission wear** (if not maintained properly)

- **Suspension wear** (struts, shocks, bushings)

A **pre-purchase inspection (PPI)** is **highly recommended** before buying.

---

### **Conclusion**

The **2021 Chevrolet Silverado 2500HD (VIN 1566134) with a CHMSL** is a **powerful, capable work truck** that excels in towing, hauling, and durability. It is well-suited for **commercial use, off-roading, or heavy-duty tasks** where strength and reliability are prioritized. The **Duramax diesel (if equipped)** offers superior fuel efficiency and torque compared to gasoline engines, while the **CHMSL improves safety** in stop-and-go traffic.

However, the **high cost of ownership** (fuel, maintenance, insurance) and **size limitations** make it less ideal for **daily commuting or urban driving**. Buyers should also be prepared for **potential electrical or engine issues** if the vehicle has not been well-maintained.

### **Recommendation**

**Buy this Silverado 2500HD if:**

You need a **heavy-duty truck for work, towing, or off-roading**.

You prioritize **reliability and longevity**, especially with the Duramax diesel.

You can **afford the higher maintenance and fuel costs**.

You **inspect the vehicle thoroughly** (or have a mechanic do so) to check for **hidden damage, service records, and engine health**.

You plan to **keep it long-term** (5 years) to justify the investment.

**Avoid or reconsider if:**

You primarily use the truck for **daily commuting or light tasks**.

You **cannot afford** the **higher fuel and maintenance costs**.

The vehicle has **poor service history** or **no maintenance records**.

You find a **better alternative** (e.g., **Ram 2500, Ford F-250

Details:

All parts are covered by warranty. Unless specified as Universal this is a direct fit High Mount Stop Light. Every part is cleaned, tested and inspected by experts. V8 DIESEL O HV Turbocharged.

This part fits vehicles made in the following years 2021. Our services are varied, but they all come with the same promise of quality, dedication and durability. Parts go back into cars rather than landfill. Original parts mean a perfect fit.

part #: 1566134 price

  • $134.90

specifications lightinglam:

  • for models: 2500, Silverado
  • for makes: Chevrolet
  • for years: 2021
  • mpn: 1566134
  • warranty: 90 Day
  • genuine oem: No
  • interchange item code: 176
  • color: Black
  • type: Center High Mount Stop Light

payments lightinglam:

  • credit card: Diners-club
  • wallet: Apple-pay
  • other

seller lightinglam:

  • rating: 50.0%
  • city: Appleton, Wisconsin
  • # reviews: 0

returns lightinglam:

  • policy: Returns Accepted
  • time: 60 Days
  • paid by: Buyer

general lightinglam:

  • Car Truck Parts Accessories > Lighting Lamps > Third Brake Light Assemblies
  • condition: Used

offer lightinglam:

  • sold: 0
  • availability: In Stock
  • options: Ship-to-home
  • best offers: True
  • quantity: 1
  • started: April 20, 2026

shipping lightinglam:

  • class: Expedited
  • service: USPS Priority Mail
  • carrier: USPS
  • transit: 4-10 Days
  • type: Fixed
  • cost: $0.00
for models: 2500, silverado, for makes: chevrolet, for years: 2021, warranty: 90 day, genuine oem: no, interchange item code: 176, type: center high mount stop light,
manufacturer: chevrolet, category: auto parts > car truck parts accessories > lighting lamps > center third brake light assemblies, color: black, sku: 15704624457298603,
Chevrolet 1566134 Is Similar To:
lightinglam logo
1 offer $134.90 USD
  • Used. Offer #1 priced at $134.90 + $0.00 shipping estimate = $134.90* total. FREE SHIPPING

Copyright © lightinglam.com