MOPAR 04758300AB Radiator Isolator

( Manufacturer Part Number: 04758300AB ), ( Part Type: Radiator ), ( Genuine Oem: Yes ), ( Manufacturer Warranty: 1 Year ), ( Universal Fitment: Direct Replacement ), ( Parts Included: Only Part Reference 3 On The Diagram Is Included )

Review MOPAR Genuine Radiator Isolator 4758300ab

The **Mopar 04758300AB Radiator Isolator (Part Number 4758300AB)** is a precision-engineered component designed to enhance the performance and longevity of Chrysler, Dodge, Jeep, and Ram vehicles equipped with push-button start systems. This radiator isolator serves as a critical thermal barrier between the engine bay and the passenger compartment, effectively reducing heat transfer while maintaining optimal cooling efficiency. Crafted from high-quality, durable materials, the isolator features a robust, rubberized construction that is engineered to withstand the extreme temperatures and mechanical stresses encountered in high-performance and daily driving applications. Its unique design incorporates a flexible yet rigid structure, allowing for slight movement and vibration absorption without compromising its insulating properties, which helps prevent heat-related discomfort for occupants while preserving the cooling system s effectiveness. The isolator s seamless integration with the vehicle s radiator and cooling components ensures a secure, leak-free fit, minimizing the risk of air gaps or improper sealing that could lead to overheating or reduced cooling performance. Ideal for a wide range of Mopar applications, including models from the 2000s through the 2010s, this part is a straightforward yet essential upgrade for drivers seeking improved cabin comfort, enhanced cooling system reliability, and a quieter, more refined driving experience. Whether installed in a classic muscle car, a rugged off-road vehicle, or a modern crossover, the 04758300AB radiator isolator delivers a balance of functionality and durability, making it a must-have accessory for enthusiasts and professionals alike.

### **Pros and Cons of buying a Mopar 04758300AB Radiator Isolator (Part #4758300AB)**

1. **OEM Quality and Fit** This part is a direct Mopar (Chrysler) replacement, meaning it is designed to match the original specifications of your vehicle s radiator isolator. It should fit without modifications and maintain proper alignment, reducing the risk of leaks or misalignment issues.

2. **Durability** Mopar parts are built to last, often using materials and manufacturing standards similar to those used in factory components. This can result in longer service life compared to aftermarket knockoffs that may use cheaper materials.

3. **Reliability** Since it is an OEM part, it is less likely to fail prematurely due to poor design or substandard materials. This can be particularly important for radiator isolators, which help prevent coolant leaks and maintain proper pressure in the cooling system.

4. **Compatibility** This part is specifically engineered for certain Chrysler vehicles (e.g., Dodge trucks, Ram trucks, or Jeep models from the relevant era). Using an OEM part ensures compatibility with your vehicle s cooling system design, reducing the chance of installation errors.

5. **Warranty Coverage** Mopar parts often come with a warranty (typically 12 months or more), providing some recourse if the part fails due to a defect. This can be reassuring compared to aftermarket parts that may lack such guarantees.

6. **Ease of Installation** Because it is an OEM part, it should align correctly with the radiator and surrounding components, making installation straightforward for those with basic mechanical skills. No additional modifications (like drilling or cutting) are usually required.

7. **Support for Original Performance** The isolator is designed to work seamlessly with the vehicle s cooling system, ensuring optimal heat transfer and pressure regulation. This can help maintain the engine s performance and longevity.

---

1. **Higher Cost** OEM parts like this are typically more expensive than aftermarket alternatives. The price reflects the brand reputation, quality, and warranty, which may not be necessary for all buyers, especially those on a tight budget.

2. **Limited Availability** Depending on your location, finding this specific part may require ordering online or visiting a specialty auto parts store. Some local mechanics or dealerships may not stock it, adding inconvenience.

3. **Potential Overkill for Some Applications** If your vehicle s radiator isolator is not failing but is simply worn or damaged, replacing it with a new OEM part may be unnecessary. In such cases, an aftermarket part or even a refurbished OEM part could be a more cost-effective solution.

4. **No Additional Features** Unlike some aftermarket parts, this OEM isolator does not come with added benefits like reinforced gaskets, corrosion-resistant coatings, or extended warranties. If you re looking for upgrades beyond basic replacement, you may need to explore other options.

5. **Resale Value Impact** If you plan to sell the vehicle later, installing an OEM part may not significantly boost its resale value compared to keeping the original (if it still functions). However, replacing a failed part with an OEM piece can prevent future issues that might devalue the car.

6. **Potential for Counterfeit Parts** When purchasing online, there is a risk of receiving a counterfeit Mopar part that does not meet quality standards. Buying from authorized dealers or reputable retailers (e.g., Mopar s official website, RockAuto, or local dealerships) can mitigate this risk.

---

The **Mopar 04758300AB Radiator Isolator (Part #4758300AB)** is a high-quality, reliable replacement part that ensures proper fit, durability, and compatibility with your vehicle s cooling system. It is ideal if you prioritize OEM standards, warranty coverage, and long-term reliability. However, the higher cost and potential overkill for minor issues may make it less appealing to budget-conscious buyers or those who only need a basic replacement.

If your vehicle s isolator is failing or damaged, this part is a strong choice for maintaining performance and preventing leaks. For those looking to save money, an aftermarket equivalent (from brands like ACDelco, Fram, or Gates) could be a viable alternative, provided it meets your vehicle s specifications.

---

- Your vehicle s isolator is confirmed faulty or missing.

- You value OEM quality, warranty, and long-term reliability.

- You are replacing the part as part of a larger cooling system overhaul.

- You want to avoid potential compatibility issues with aftermarket parts.

- You are on a tight budget and the isolator is not critically failing.

- You are comfortable with installation and trust the aftermarket brand s reputation.

- You plan to perform the replacement yourself and want to minimize costs.

- **Authorized Mopar dealers** (for genuine parts and warranty).

- **RockAuto, Amazon, or eBay** (for convenience, but verify seller reputation).

- **Local Chrysler/Dodge dealerships or auto parts stores** (for in-person inspection).

Ultimately, the decision depends on your priorities whether you prioritize cost savings or peace of mind with an OEM part. For most drivers, the Mopar isolator is a safe and reliable choice when replacing a failed component.

Details:

Shipping Carrier substitutions may be made at our determination in an attempt to reduce shipping cost the customer. Parts must be resalable and in the original packaging. Electrical parts are not returnable. Do it right the first time, choose us.

In stock orders ship within 48 hours.

part #: 04758300ab prices

• $20.64-$42.77

specifications ocoosys:

• for makes: Mopar
• mpn: 04758300ab
• part type: Radiator
• genuine oem: Yes
• manufacturer warranty: 1 Year
• universal fitment: Direct Replacement
• parts included: Only Part Reference 3 On The Diagram Is Included

returns ocoosys:

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

offer ocoosys:

• options: Ship-to-home
• availability: In Stock
• sold: 0
• quantity: 4
• started: April 30, 2026

general ocoosys:

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

shipping ocoosys:

• class: Standard
• service: Standard
• cost: $8.95
• type: Fixed
• transit: 6-12 Days

payments ocoosys:

• other
• credit card: Visa
• wallet: Paypal

seller ocoosys:

• # reviews: 771
• rating: 99.5%
• city: Norco, California

Mopar 04758300AB Is Similar To:

• 05226356 Mopar Genuine Coolant Temperature Sensor Dodge Plymouth Chrysler (35.2% similar) Genuine mopar part. This is not some aftermarket reverse engineered fake. Do it right the first time. Please do your research carefully to make sure this is the correct item for vehicle. Message me with any questions through...(October 21st, 2018)
• 1-04868332ae Mopar Radiator Fan Relay (38.2% similar) Climax ink bottle round bottom mopar radiator fan relay 1-04868332AE buy now and save...(March 4th, 2018)
• 4805698ab Mopar New Chrysler Sebring Radiator Air Guide Right Oem (35.9% similar) Chrysler Sebring v6 radiator air guide right oem 4805698AB...(December 10th, 2018)
• 5005144an Mopar Chrysler Oem Radiator-cooling (39.2% similar) Superseded part numbers this item may have been from a different number manufacture. Chrysler signature series mini passenger van 4-DOOR. This part fits vehicles made in the following years 2008 , 2009 , 2010...(May 13th, 2017)
• 5011852ab Mopar Chrysler Oem-radiator Coolant (41.2% similar) Superseded part numbers this item may have been from a different number manufacture. Installation fasteners and hardware are not always included. Are not included in the expected delivery dates...(January 3rd, 2018)
• 5033313aa Mopar Chrysler Oem-radiator Coolant (41.2% similar) ...(October 14th, 2017)
• 5182336aa Mopar Radiator Core Shield Splash Cover Panel Right (33.6% similar) Installation fasteners and hardware are not always included. Are not included in the expected delivery dates. Orders shipping outside the continental us...(May 17th, 2018)
• 5182337aa Mopar Radiator Core Shield Splash Cover Panel Left (33.9% similar) Sr's modules, airbags, and crash sensors are non-returnable. And we discount them all...(March 17th, 2018)
• 52014969ae Mopar Radiator Core Support-sight (37.5% similar) Installation fasteners and hardware are not always included. Are not included in the expected delivery dates. Superseded part numbers this item may have been from a different number manufacture. Orders shipping outside the continental us...(September 7th, 2017)
• 52079779aj Mopar Radiator Coolant Overflow Reservoir Jeep Grand Cherokee Wj (36.2% similar) In average good used condition as shown the photos. This will fit the following automobiles: jeep grand Cherokee wk. As removed from a 2004 jeep grand Cherokee limited with up for sale is an original oem mopar coolant reservoir tank bottle...(June 19th, 2018)
• 55057072af Mopar Radiator Core Shield Splash Cover Panel (35.2% similar) This parts position is front. Superseded part numbers this item may have been from a different number manufacture. This part fits vehicles made in the following years 2013 , 2014 , 2015 , 2016 , 2017...(March 31st, 2018)