Eagle Vision Automatic Transmission Oil Cooler Guide (1993-1997)
Keep your Eagle Vision's A604 transmission cool and avoid costly failure by understanding your oil cooler options.
- The A604/41TE transmission in your Eagle Vision is prone to overheating; an efficient cooler is critical for its lifespan.
- The original OEM cooler is discontinued; your options are a new radiator with an integrated cooler or adding a standalone aftermarket cooler.
- For aftermarket brands, Derale and Hayden offer superior plate-and-fin designs that are highly recommended for this vehicle.
- Always use ATF+4 transmission fluid; using the wrong fluid can cause severe damage.
Symptoms of a Failing Transmission Cooler
A bad transmission cooler can cause serious and expensive damage. Watch for these warning signs in your Eagle Vision.
Key Failure Symptoms
- Transmission Overheating: A dashboard warning light may come on, or you might notice the transmission performance dropping, especially in traffic or hot weather. Heat is the number one killer of these transmissions.
- Leaking Transmission Fluid: You may see puddles of red or brownish fluid under the front of your car. Leaks often happen where the cooler lines connect to the radiator or the cooler itself.
- Poor Shifting Performance: When the fluid is too hot, it doesn't work as it should. You might experience delayed or rough shifts, hesitation, or the engine revving without the car accelerating properly (slipping).
- Burnt Smell: A strong, sharp burning odor indicates the transmission fluid is overheating and essentially cooking inside the system.
- Unusual Noises: Whining or grinding sounds can signal that the fluid isn't providing enough lubrication due to being too hot or low from a leak.
Choosing the Right Aftermarket Cooler
For the 1993-1997 Eagle Vision, the factory transmission cooler is part of the engine radiator. The original standalone Mopar cooler (part #4644951) has been discontinued. This means you have two main choices: replace the entire radiator with a new unit that has an integrated cooler, or add a standalone aftermarket auxiliary cooler.
Adding an auxiliary cooler is a popular and effective upgrade for the A604/41TE transmission, as the factory cooling was often insufficient. These coolers are installed in front of the radiator to get maximum airflow and work in series with the radiator's cooler.
Aftermarket Brand Tiers for Eagle Vision
When shopping for a new aftermarket cooler, you'll find several brands. They generally fall into these quality tiers:
- Tier 1 (High Quality): Derale & Hayden
These brands are well-regarded for their performance and reliability. They often feature a "plate-and-fin" design, which is more efficient at cooling than the older "tube-and-fin" style. Both Derale and Hayden are frequently recommended by mechanics and DIYers for their durability. Many owners choose to install a Derale Series 8000 or a comparable Hayden model as a preventative upgrade. - Tier 2 (Standard Quality): Four Seasons
Four Seasons is a major supplier of a wide range of aftermarket climate control parts. While they offer transmission coolers, some users have reported mixed quality across their broader product lines. Their coolers are generally a budget-friendly option that meets basic requirements but may not offer the same high-efficiency cooling or robust construction as top-tier brands.
Cost of Replacing a Transmission Oil Cooler (1993-1997 Eagle Vision)
| Part Type | Estimated Part Cost |
|---|---|
| New Aftermarket (Standalone Cooler) | $51.93 - $95.39 |
| New Aftermarket (Radiator with integrated cooler) | $120 - $200 |
| New OEM (Discontinued) | null |
| Shop Labor (Standalone Cooler Install) | $171 - $251 |
Frequently Asked Questions (FAQ)
Can I install an aftermarket transmission cooler myself?
Yes, this is a feasible DIY project for someone with basic mechanical skills and tools. The process involves mounting the new cooler, disconnecting the existing transmission return line, and routing new hoses. You will need tools like pliers, screwdrivers, and a way to cut hoses. Most aftermarket kits come with installation hardware. The job typically takes 1.5 to 2 hours.
Should I bypass the radiator cooler or run the new cooler in series?
For most street-driven vehicles, it is best to run the new auxiliary cooler in series with the factory radiator cooler. This provides maximum cooling. You route the fluid from the transmission, through the radiator's cooler first, then to the auxiliary cooler, and finally back to the transmission.
What type of transmission fluid should I use for my Eagle Vision?
The A604/41TE transmission is very specific about its fluid. You must use ATF+4 rated fluid. Using other types, like Dexron, can cause shifting problems and lead to transmission failure.
Are there any recalls for the Eagle Vision transmission cooler?
No, there are no specific recalls or Technical Service Bulletins (TSBs) from the NHTSA for the automatic transmission oil cooler on the 1993-1997 Eagle Vision. However, there are many forum discussions about the A604 transmission's tendency to overheat, reinforcing the need for adequate cooling.
Technical Specifications
OEM Part Numbers: 4644951 (Cooler Assembly - Discontinued) 4758916 (Cooler Line) 4592063 (Cooler Line) 4596187 (Radiator w/ Cooler)
The factory system integrates the cooler into the radiator. Aftermarket auxiliary coolers are typically mounted in front of the radiator. Common aftermarket hose size is 11/32 inch.
We Have This Part in Stock
The information in this article is provided for general reference and educational purposes only. Vehicle specifications, procedures, and part compatibility can vary by production date, trim level, and region. Always consult your vehicle's factory service manual and verify part numbers before purchasing or performing repairs. Safety-critical components such as airbags, seat belts, and braking systems should be installed by a qualified professional.
- Eagle Vision: