1. Engine Cooling Components Deals
  2. sku: 20398576606457983
  3. MOPAR 05127801AA

MOPAR 05127801AA Radiator Left

fits model: Durango. make: Mopar. year: 2004–2005.

05127801aa Mopar Genuine Radiator Support Left 5127801aa

( Manufacturer Part Number: 05127801AA ), ( Part Type: Radiator ), ( Genuine Oem: Yes ), ( Manufacturer Warranty: 1 Year ), ( Universal Fitment: Direct Replacement ), ( Make: Dodge ), ( Year: 2004 2005 ), ( Parts Included: Only Part Reference 19 On The Diagram Is Included )

Review MOPAR Genuine Radiator Support Left 5127801aa fits DURANGO 2004–2005

The **Mopar 05127801AA Radiator (Part Number: 5127801AA)** is a high-performance, factory-specification cooling component meticulously engineered to deliver exceptional thermal efficiency and reliability for Chrysler, Dodge, Jeep, and Ram vehicles equipped with the iconic 5.7L (340 cubic inch) HEMI V8 engine. Designed to meet or exceed the stringent standards of the original equipment manufacturer (OEM), this radiator is crafted from durable, corrosion-resistant materials to ensure long-lasting performance in demanding driving conditions. The core features a precision-engineered aluminum honeycomb design, optimized for maximum airflow and heat dissipation, which helps maintain optimal engine temperatures even under heavy loads, high-speed cruising, or extreme climates. The radiator s robust construction includes a reinforced tank system with high-quality plastic or composite materials, reinforced with metal reinforcements where necessary, to withstand the pressure fluctuations and thermal cycling inherent in high-performance applications. The 05127801AA is specifically tailored for left-hand installation (as indicated by the "L" suffix in the part number), ensuring a perfect fit for vehicles where the radiator is positioned on the driver s side of the engine bay, such as certain models of the Dodge Challenger, Charger, Durango, and Jeep Grand Cherokee. This radiator is compatible with a wide range of aftermarket and OEM cooling systems, including those equipped with electric or mechanical cooling fans, thermostats, and hoses, making it a versatile upgrade choice for enthusiasts seeking to restore factory performance or enhance their vehicle s cooling capability. Whether used in a restoration project, a performance build, or as a direct replacement for a failing original component, the Mopar 05127801AA radiator combines durability, precision engineering, and Mopar s reputation for quality to provide a dependable solution for maintaining peak engine health.

The **Mopar 05127801AA (left-side radiator for 2005 2014 Dodge Ram 1500/2500/3500 with 5.7L Hemi V8)** is a common aftermarket replacement part for older Dodge trucks. Below is a detailed breakdown of its pros and cons, followed by a conclusion and recommendation.

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### **Pros of buying a Mopar 05127801AA Radiator**

1. **OEM Quality and Fit**

The Mopar brand is known for producing parts that meet or exceed original equipment manufacturer (OEM) standards. This radiator is designed to fit directly into the factory mounting points, ensuring a proper seal and alignment with the cooling system. It avoids the potential issues that can arise from aftermarket parts that may not align perfectly with the vehicle s cooling system components.

2. **Compatibility with Common Modifications**

The 5.7L Hemi engine is a popular platform for aftermarket upgrades, including forced induction (turbo/supercharger) and high-performance cooling solutions. The Mopar radiator is often compatible with these modifications, especially when paired with an upgraded water pump, thermostat housing, and hoses. It provides a solid foundation for a more robust cooling system.

3. **Reliability and Durability**

Mopar parts are built to last, particularly in applications where the cooling system is subjected to stress (e.g., towing, high-performance driving, or extreme climates). The radiator is constructed with materials that resist corrosion and warping over time, which is critical for long-term reliability.

4. **Warranty Coverage**

Mopar parts typically come with a warranty (often 12 24 months), which provides peace of mind in case of manufacturing defects. This is particularly useful if the radiator fails prematurely due to a flaw in the design or materials.

5. **Ease of Installation**

Since it is an OEM replacement, the installation process is straightforward for most mechanics and DIYers. The mounting brackets and connections are designed to match the factory setup, reducing the need for extensive modifications or adapters.

6. **Support for Aftermarket Cooling Upgrades**

The Mopar radiator is often used as a base for upgrading to larger, high-performance radiators (e.g., 6-row or 8-row designs). Its standard mounting pattern allows for easy swapping with aftermarket radiators that offer improved airflow and heat dissipation.

7. **Availability and Cost**

While not the cheapest option, the Mopar radiator is widely available through dealerships, online retailers, and specialty parts stores. Pricing is competitive compared to some aftermarket alternatives, especially when factoring in the quality and reliability.

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### **Cons of buying a Mopar 05127801AA Radiator**

1. **Limited Cooling Capacity for High-Performance Applications**

The stock Mopar radiator is designed for stock or mildly modified engines. For heavily modified Hemi engines (e.g., turbocharged, supercharged, or high-compression builds), the stock radiator may struggle to dissipate heat efficiently, leading to overheating. In such cases, an aftermarket radiator with a larger core (e.g., 6-row or 8-row) is often necessary.

2. **Potential for Leaks Over Time**

Like all radiators, the Mopar 05127801AA can develop leaks at the seams, tubes, or hoses over time, especially if the vehicle is used in harsh conditions (e.g., extreme heat, salted roads, or off-road use). Regular maintenance and inspection are required to catch leaks early.

3. **Weight and Bulk**

The stock radiator is relatively heavy and bulky, which can make it less ideal for vehicles with limited under-hood space or those requiring aggressive cooling system modifications (e.g., cross-flow radiators). Some aftermarket options are lighter and more compact.

4. **Compatibility with Non-Stock Cooling Systems**

If the vehicle has been modified with a non-standard water pump, thermostat housing, or hoses, the Mopar radiator may not integrate perfectly. In such cases, an aftermarket radiator designed for the specific modification might be necessary.

5. **Higher Cost Than Basic Aftermarket Alternatives**

While Mopar radiators are high-quality, they are often more expensive than generic aftermarket radiators. For budget-conscious buyers, cheaper alternatives may be tempting, but they may lack the durability and fitment precision of the Mopar part.

6. **Potential for Corrosion in Aggressive Environments**

If the vehicle is exposed to salt, humidity, or other corrosive elements, the radiator (like any aluminum part) can corrode over time. While Mopar radiators are generally resistant, they are not immune to this issue, and proactive maintenance (e.g., using corrosion inhibitors) is recommended.

7. **Limited Customization Options**

The Mopar radiator is a standard replacement and does not offer customization options (e.g., different core sizes, materials, or fin designs). For enthusiasts looking to optimize cooling performance, aftermarket radiators with adjustable features may be preferable.

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### **Conclusion**

The **Mopar 05127801AA radiator** is an excellent choice for owners of 2005 2014 Dodge Rams with 5.7L Hemi engines who prioritize reliability, OEM fitment, and long-term durability. It is ideal for stock or mildly modified vehicles, as well as those that may require a base for future cooling upgrades. The part s quality, warranty coverage, and ease of installation make it a strong option for most applications where the cooling system remains largely stock or is upgraded incrementally.

However, for **high-performance or turbocharged applications**, the stock radiator may not provide sufficient cooling capacity, and an aftermarket radiator with a larger core is recommended. Additionally, owners in harsh environments should be mindful of potential corrosion and leaks, ensuring regular maintenance to extend the radiator s lifespan.

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### **Recommendation**

- **Buy the Mopar 05127801AA if:**

- You need a direct OEM replacement for your 5.7L Hemi Dodge Ram.

- Your vehicle is stock or has minor modifications (e.g., mild tuning, towing).

- You value reliability, warranty coverage, and ease of installation.

- You plan to upgrade to a larger aftermarket radiator in the future.

- **Consider an aftermarket radiator instead if:**

- Your engine is heavily modified (turbocharged, supercharged, or high-compression).

- You require a larger core (6-row or 8-row) for improved cooling performance.

- You are working with a non-standard cooling system (e.g., custom water pumps or hoses).

- You are operating in extreme conditions and want additional corrosion resistance or customization options.

For most stock or lightly modified 5.7L Hemi owners, the **Mopar 05127801AA radiator is a solid and practical choice**. However, those pushing the engine s limits should research aftermarket alternatives to ensure adequate cooling performance. Always pair the radiator with a high-quality water pump, thermostat, and hoses to maximize reliability.

Details:

An order or a portion of an may be cancelled up until the time it is shipped and no longer in our possession. Electrical Car and Truck parts are NOT RETURNABLE, includes sensors, connectors, wiring, coils, spark plugs, modules any containing components. Shipping Carrier substitutions may be made at our determination in an attempt to reduce shipping cost the customer.

part #: 05127801aa prices

  • $79.84-$86.79

specifications ocoosys:

  • for models: Durango
  • for makes: Mopar
  • for years: 2004-2005
  • mpn: 05127801aa
  • part type: Radiator
  • genuine oem: Yes
  • manufacturer warranty: 1 Year
  • universal fitment: Direct Replacement
  • make: Dodge
  • year: 2004 2005
  • parts included: Only Part Reference 19 On The Diagram Is Included

general ocoosys:

  • condition: New
  • Car Truck Parts Accessories > Engine Cooling Components > Other Engine Cooling Components

returns ocoosys:

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

shipping ocoosys:

  • transit: 4-8 Days
  • cost: $54.03
  • service: Standard, Expedited, Overnight
  • type: Fixed
  • class: Standard, Expedited, One-day

seller ocoosys:

  • # reviews: 128
  • rating: 100.0%
  • city: Lima, Ohio

payments ocoosys:

  • credit card: Mastercard
  • wallet: Paypal
  • other

offer ocoosys:

  • options: Ship-to-home
  • quantity: 2
  • availability: In Stock
  • started: March 15, 2026
  • sold: 0
for models: durango, for makes: mopar, for years: 2004-2005, part type: radiator, genuine oem: yes, manufacturer warranty: 1 year, universal fitment: direct replacement, year: 2004 2005, parts included: only part reference 19 on the diagram is included,
manufacturer: dodge, category: auto parts > car truck parts accessories > engine cooling components, sku: 20398576606457983,
Mopar 05127801AA Is Similar To:
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5 offers $79.84–$86.79 USD
  • Used. Offer #1 priced at $80.00 + $Calculated shipping estimate = $80.00* total. 04 UPR CORE SUPPORT TIE BAR 55362294AB, 55362295AC, 05127800AA, .+$Calculated shipping
  • New. Offer #2 priced at $86.79 + $54.03 shipping estimate = $140.82* total. Genuine Mopar Parts.+$54.03 shipping
  • New. Offer #3 priced at $79.84 + $53.12 shipping estimate = $132.96* total. Mopar Parts Mass.+$53.12 shipping
  • New. Offer #4 priced at $79.84 + $54.03 shipping estimate = $133.87* total. This is a MOPAR OEM Part.+$54.03 shipping
  • New. Offer #5 priced at $86.79 + $57.24 shipping estimate = $144.03* total. 2505 E Jackson St Hugo. (hodgewholesaleparts).+$57.24 shipping

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