PETERBILT 2131249 Radiator 378

( Manufacturer Part Number: 2131249 ), ( Part Type: Radiator ), ( Core Size: 36 1/4 X 33 1/4 ), ( Material: All Metal ), ( Row Cnt: 3 Row )

Review PETERBILT 378 Radiator Assembly fits 2006

The Peterbilt 2131249 378 Radiator is a high-performance cooling solution designed specifically for heavy-duty applications. This radiator is engineered to provide exceptional cooling capacity and durability, making it an ideal choice for Peterbilt trucks and other commercial vehicles.

The radiator features a robust design with a 3-row core, offering a large cooling capacity to handle the demands of heavy loads and extended operating hours. The core is constructed of copper and brass tubes, which provide excellent heat transfer properties and ensure efficient cooling performance. The tanks are made of sturdy aluminum material, which is both lightweight and resistant to corrosion, ensuring longevity and reliability.

The inlet and outlet connections are engineered with heavy-duty brass fittings, providing a secure and leak-free connection. The top and bottom tanks are designed with large drain plugs, making it easy to perform routine maintenance tasks, such as draining the coolant system. The radiator is also equipped with a pressure cap that is designed to maintain the coolant system at the optimal pressure, preventing coolant loss and ensuring consistent cooling performance.

Additionally, this radiator comes with a heavy-duty fan shroud, which is designed to protect the fan blades from debris and damage. The fan shroud is also engineered to provide maximum airflow to the radiator, ensuring efficient cooling even during high-workload conditions.

The Peterbilt 2131249 378 Radiator is specifically designed to fit Peterbilt trucks with a 378 engine, and it is engineered to meet or exceed OEM specifications for cooling capacity and durability. This radiator is an essential component for maintaining the performance and reliability of your heavy-duty vehicle, making it a valuable investment for commercial fleet operators and owner-operators alike.

The Peterbilt 2131249 378 radiator is a heavy-duty cooling component designed for use in Peterbilt trucks. Here are some potential pros and cons to consider before making a purchase:

1. High-performance cooling: This radiator is designed to provide efficient cooling for heavy-duty applications, making it an ideal choice for trucks that operate in hot environments or carry heavy loads.

2. Durable construction: The radiator is made of high-quality materials, including aluminum tanks and brass or copper fins, which can withstand the rigors of commercial trucking and provide long-lasting performance.

3. Easy installation: The Peterbilt 2131249 378 radiator is designed to fit directly into Peterbilt trucks, making installation relatively straightforward and minimizing the need for additional modifications or fabrication.

1. Cost: As a high-performance, heavy-duty radiator, the Peterbilt 2131249 378 radiator can be more expensive than standard radiators.

2. Weight: The radiator's durable construction and high-performance materials contribute to its weight, which may be a consideration for operators looking to reduce overall vehicle weight.

3. Limited compatibility: While the Peterbilt 2131249 378 radiator is specifically designed for use in Peterbilt trucks, it may not be compatible with other makes and models.

In conclusion, the Peterbilt 2131249 378 radiator offers superior cooling performance and durable construction, making it an excellent choice for heavy-duty applications in Peterbilt trucks. However, its cost and weight may be drawbacks for some operators. Ultimately, the decision to purchase this radiator will depend on the specific needs and priorities of the trucking operation.

If you are looking for a radiator that offers high-performance cooling and durability for your Peterbilt truck, then the Peterbilt 2131249 378 radiator is a strong recommendation. However, if cost or weight is a significant concern, you may want to explore other options or consider a standard radiator.

Details:

If not, let us know how to earn your 5-star rating. PETERBILT 378 RADIATOR ASSEMBLY 3352865: 'S21K0056 - Used Radiator Assembly off of a 2006 Peterbilt Engine Cummins ISX Material All Metal Row 3 height 36 1/4 Inches width 33 Depth 2 Inlet 1/2 Inch Connection Outlet Looks to have been recently Refreshed/Replaced.

part #: 2131249 prices

• $314.99-$497.77

specifications coenginecooling:

• for makes: Peterbilt
• for years: 2006
• mpn: 2131249
• part type: Radiator
• core size: 36 1/4 X 33 1/4
• material: All Metal
• row cnt: 3 Row

returns coenginecooling:

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

general coenginecooling:

• condition: Used
• Commercial Truck Parts > Engine Cooling > Radiators

payments coenginecooling:

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

seller coenginecooling:

• rating: 95.4%
• # reviews: 7558
• city: Spokane, WA

shipping coenginecooling:

• type: Fixed
• class: Freight
• service: Flat Rate Freight
• cost: $0.00

offer coenginecooling:

• options: Ship-to-home
• sold: 0
• availability: In Stock
• started: August 23, 2025
• quantity: 1

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