
20838678 Comparison
| photo | price | summary | rating |
|---|---|---|---|
![]() | $199.95 | Condition is New, 2008-2011 Cadillac DTS & Buick Lucerne Fuse Block Box New OEM 20838678, FREE SHIPPING | 99.7% |
| photo | price | summary | rating |
|---|---|---|---|
![]() | $75.00 | Condition is Used, 2008-2011 CADILLAC DTS LUCERNE UNDER HOOD ENGINE FUSE BOX NORTHSTAR 20838678 AH3, FREE SHIPPING | 100.0% |
![]() | $80.00 | Condition is Used, 2008-2011 CADILLAC DTS LUCERNE UNDER HOOD ENGINE FUSE BOX NORTHSTAR 20838678 AH2, FREE SHIPPING | 100.0% |
![]() | $114.99 | Condition is Used, 08 09 10 11 Cadillac DTS Fuse Box Panel 20838678 Match Number , FREE SHIPPING | ![]() |
![]() | $118.99 | Top Pick! Condition is Used, 20838678 CADILLAC DTS/ Lucerne 2008-11 FUSE BOX Fuse Box RELAY Block 2C3 635 B7, FREE SHIPPING | ![]() |
![]() | $115.00 | Top Pick! Condition is Used, 2008-2011 Cadillac DTS / Buick Lucerne Engine Control Relay Fuse Box - 20838678, shipping cost = $10.60 | ![]() |
![]() | $138.99 | Condition is Used, 2008-2011 Cadillac DTS & Buick Lucerne Fuse Block Box New OEM 20838678, shipping cost = $19.87 | 99.2% |
![]() | $139.99 | Condition is Used, 2008-2011 Cadillac DTS / Buick Lucerne Engine Control Relay Fuse Box - 20838678, shipping cost = $20.95 | 95.7% |
![]() | $186.99 | Top Pick! Condition is Used, 2009 2010 2011 Cadillac DTS Engine Fuse Junction Box, FREE SHIPPING | 99.6% |

The 2008-2011 Cadillac DTS and Buick Lucerne share a common platform and utilize similar automotive systems, including the Fuse Block Box. This essential component of the vehicle's electrical system is located in the engine compartment, usually near the battery. The Fuse Block Box, also known as the Power Distribution Center, is responsible for managing and distributing electrical power to various systems and components in the vehicle.
This particular Fuse Block Box, with the product number 20838678, is a high-quality replacement part designed to fit perfectly in your Cadillac DTS or Buick Lucerne. It is engineered to meet or exceed original equipment specifications to ensure reliable and efficient power distribution. The housing is made of a durable material, resistant to heat and moisture, to provide long-lasting protection for the fuses and relays housed within.
The 20838678 Fuse Block Box comes with a comprehensive set of fuses to power various systems, such as the engine, lighting, electrical accessories, and the charging system. Each fuse is color-coded and clearly labeled for easy identification. These fuses help prevent electrical overloads by interrupting the current flow when necessary, thus protecting your vehicle's electrical components from potential damage.
Installing this replacement Fuse Block Box is a straightforward process, making it an excellent choice for DIY enthusiasts. The installation process does not require any specialized tools, and the detailed instructions provided with the part ensure a hassle-free experience.
In summary, the 20838678 Fuse Block Box is an essential upgrade for your 2008-2011 Cadillac DTS or Buick Lucerne. It ensures reliable power distribution to all systems and components, providing peace of mind and enhancing your overall driving experience. With its durable construction and easy installation, this replacement part is an excellent investment for vehicle owners seeking to maintain the optimal performance of their vehicles.
The Fuse Box is an essential component in a vehicle's electrical system that distributes power to various accessories and systems. In the case of the 2008-2011 Cadillac DTS and Buick Lucerne, the Fuse Box plays a crucial role in supplying power to various electronic components. Here are some pros and cons of buying a new Fuse Block Box for these models:
Pros:1. Improved reliability: A new Fuse Block Box can help ensure the reliability of the electrical system in your 2008-2011 Cadillac DTS or Buick Lucerne. Faulty fuses or a failing Fuse Box can lead to various electrical issues, so replacing the Fuse Box can help prevent these problems.
2. Enhanced safety: A faulty Fuse Box can pose a safety hazard, especially if it causes the airbags or other safety features to malfunction. A new Fuse Block Box can help ensure that all safety systems are functioning correctly.
3. Better performance: A new Fuse Block Box can help improve the overall performance of your vehicle by ensuring that all electrical components are receiving the correct amount of power. This can lead to smoother operation of various systems, such as the radio, climate control, and power windows.
4. Cost-effective: Replacing a Fuse Block Box is often a more cost-effective solution compared to replacing individual fuses or other electrical components.
Cons:1. Cost: The cost of a new Fuse Block Box can vary depending on the make and model of the vehicle. However, it is generally more expensive than replacing individual fuses.
2. Installation: Installing a new Fuse Block Box can be a complex process, especially if you are not experienced in automotive electrical work. It is recommended that you have a professional install the new Fuse Box to ensure proper installation and functionality.
3. Availability: Depending on the specific make and model of your 2008-2011 Cadillac DTS or Buick Lucerne, it may be difficult to find a new Fuse Block Box. You may need to order it from the dealership or an aftermarket supplier, which could take some time.
Conclusion:In conclusion, a new Fuse Block Box can help improve the reliability, safety, and performance of your 2008-2011 Cadillac DTS or Buick Lucerne. However, it comes with some cons, such as the cost and installation complexity. If you are experiencing electrical issues with your vehicle, it is recommended that you consult a professional mechanic to determine if a new Fuse Block Box is the best solution for your specific situation.
Recommendation:If you decide to replace the Fuse Block Box in your 2008-2011 Cadillac DTS or Buick Lucerne, it is recommended that you purchase a new OEM (Original Equipment Manufacturer) Fuse Box from a reputable dealership or aftermarket supplier. This will ensure that you are getting a high-quality part that is specifically designed for your vehicle. Additionally, it is recommended that you have a professional install the new Fuse Box to ensure proper installation and functionality.
Details:
specifications perfoelectric:
- for models: Dts, Lucerne
- for makes: Cadillac, Buick
- for years: 2008–2011
- brand: General Motors
- mpn: 20838678
- placement on vehicle: Front
- manufacturer warranty: 60 Day
- style: Fuse Block
- color: Black
- core charge: No
- type: Oem
- fitment type: Direct Replacement
seller perfoelectric:
- rating: 95.7%
- city: fort calhoun, nebraska
- # reviews: 1017
offer perfoelectric:
- prices: $75.00–$199.95
- item condition:
- New
- Used
- sold #: 22
- in stock #: 5
- options: ship-to-home
- started: march 9, 2025
- availability: in stock
returns perfoelectric:
- time: 30 days
- policy: returns accepted
- paid by: buyer
payments perfoelectric:
- credit card: visa
- wallet: paypal
- other
shipping perfoelectric:
- class: standard
- carrier: usps
- type: fixed
- transit: 4-9 days
- service: usps ground advantage
general perfoelectric:
- category: Auto Parts > Electrical Components
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