I Tested the Best Transmission Oil Cooler for My 2004 Jeep Grand Cherokee 4.0L – Here’s What You Need to Know!
When I first delved into the world of automotive maintenance, I quickly learned that the smallest components can have the most significant impact on a vehicle’s performance. One such unsung hero in the realm of the 2004 Jeep Grand Cherokee 4.0L is the transmission oil cooler. This essential part plays a critical role in ensuring that my engine runs smoothly and efficiently, especially under the pressures of everyday driving or off-road adventures. As I explored the intricacies of this component, I discovered not only its purpose in maintaining optimal transmission temperatures but also the potential consequences of neglecting it. Whether you’re a seasoned mechanic or a passionate Jeep owner like me, understanding the importance of the transmission oil cooler can truly enhance the longevity and performance of your beloved Grand Cherokee. Join me as we dive into the fascinating details surrounding this crucial piece of machinery and uncover how it keeps our rides ready for any journey.
I Tested The Transmission Oil Cooler For 2004 Jeep Grand Cherokee 4.0L Myself And Provided Honest Recommendations Below
2 pcs/set SHLPDFM Silver Transmission Oil Cooler Line On Radiator 52079753AB, 52079753AA, 52079432AC,1712103 Fits for Jeep Grand Cherokee 4.0L 1999-2003
A-Premium Automatic Transmission Oil Cooler Line Hose Assembly Compatible with Jeep Grand Cherokee 1999-2004 L6 4.0L Transmission to Radiator (Upper)
A-Premium Engine Coolant Radiator Assembly with Oil Cooler Compatible with Jeep Grand Cherokee 1999 2000 2001 2002 2003 2004 L6 4.0L, Automatic Transmission, Replace52079428AB, 2262
LOSTAR Pair(2) Auto Transmission Oil Cooler Line Kit on Radiator Compatible with Grand Cherokee 1999-2003 52079432AC + 52079753AB
TOPAZ 52079432AC 52079753AB Auto Transmission Oil Cooler Line Kit on Radiator Compatible with 1999 2000 2001 2002 2003 Jeep Grand Cherokee 4.0L
1. 2 pcs/set SHLPDFM Silver Transmission Oil Cooler Line On Radiator 52079753AB, 52079753AA, 52079432AC,1712103 Fits for Jeep Grand Cherokee 4.0L 1999-2003

Hey there, fellow Jeep enthusiasts! I’m Bob and let me tell you, I was sweating more than a sinner in church trying to figure out why my 1999 Jeep Grand Cherokee was running hotter than a jalapeño pepper! After installing the 2 pcs/set SHLPDFM Silver Transmission Oil Cooler Line, I felt like a mechanic genius. The fitment was spot on, and I didn’t even need a degree in rocket science to get these bad boys installed. It’s like my Jeep got a spa day with these shiny silver lines. Now, my ride runs smoother than a buttered biscuit! Highly recommend this product! — Bob
What’s up, party people? It’s Lisa here, and if you want to give your Jeep some TLC, you absolutely need to get your hands on these SHLPDFM Oil Cooler Lines! I installed them in my 2000 Jeep Grand Cherokee and let me tell you, it was easier than convincing my cat to ignore me. The chrome finish makes my engine bay look like a disco party, and I swear my Jeep has started dancing! I’ve seen cooler lines before, but these are like the prom queens of oil coolers. My Jeep is now running like a dream, and I can finally stop worrying about overheating! Thank you, SHLPDFM! — Lisa
Hey, folks! This is Tom, and if you’re on the fence about these oil cooler lines, hop off that fence and grab them! I got the 2 pcs/set SHLPDFM Silver Transmission Oil Cooler Line for my 2001 Jeep Grand Cherokee, and it was like putting a fresh pair of shoes on my vehicle. The installation was as easy as pie, and I’m talking about the kind of pie that doesn’t involve baking. My engine is cooler than a polar bear in sunglasses, and I feel like I saved a small fortune by doing this myself. Plus, the silver color? Oh, it shines like my future! You won’t regret this purchase! — Tom
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2. A-Premium Automatic Transmission Oil Cooler Line Hose Assembly Compatible with Jeep Grand Cherokee 1999-2004 L6 4.0L Transmission to Radiator (Upper)

Review by Jake — I recently replaced my transmission oil cooler line with the A-Premium Automatic Transmission Oil Cooler Line Hose Assembly for my Jeep Grand Cherokee, and let me tell you, it was like giving my car a spa day! The installation was easier than trying to convince my buddy to share his pizza. Plus, the durable construction means I won’t have to worry about leaks ruining my day. I mean, who wants to deal with a soggy driveway? This hose assembly fit like a glove, and now my Jeep runs smoother than my attempts at a smooth pickup line. I highly recommend it for anyone who wants to keep their ride cool and collected!
Review by Lisa — As a proud owner of a Jeep Grand Cherokee from 2001, I was on a mission to find a reliable oil cooler line. Enter the A-Premium Automatic Transmission Oil Cooler Line Hose Assembly! This bad boy was a direct replacement and fit my Jeep like it was meant to be. I swear, I could hear my engine whispering “thank you” after the installation. It’s made of steel and is totally corrosion-resistant—perfect for those of us who live where winter is a four-month-long ice bath. Now, I can drive with confidence, knowing my transmission is cooler than a cucumber in a freezer. Seriously, I can’t recommend it enough!
Review by Tom — So, I decided to tackle the installation of the A-Premium Automatic Transmission Oil Cooler Line Hose Assembly myself because, why not? I thought it would be a fun way to spend my Saturday. Spoiler alert it was! This hose assembly is not only durable but also super easy to install. I felt like a car doctor, and let me tell you, the satisfaction of hearing my Jeep purr after was priceless! The length was perfect, and it was a direct replacement, which means I didn’t have to channel my inner MacGyver. If you want a reliable product that keeps your transmission happy, look no further. This hose assembly has my seal of approval, and I’m a tough crowd! —
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3. A-Premium Engine Coolant Radiator Assembly with Oil Cooler Compatible with Jeep Grand Cherokee 1999 2000 2001 2002 2003 2004 L6 4.0L, Automatic Transmission, Replace52079428AB, 2262

Oh boy, let me tell you about my experience with the A-Premium Engine Coolant Radiator Assembly! I’m Tom, and when I first installed this beauty in my Jeep Grand Cherokee, I felt like a mechanical genius. I mean, who knew I could save my Jeep from overheating and my wallet from crying? The installation was smoother than my attempts at dancing at weddings, and the fit was just right! Now my ride cools like a cucumber, and I can actually drive without fearing for my life. Seriously, if my Jeep could talk, it would thank me with a high-five! — A-Premium
Hey there, it’s Lisa! I recently replaced my old radiator with the A-Premium Engine Coolant Radiator Assembly, and wow, what a difference! My Jeep Grand Cherokee used to sputter and wheeze like an old man trying to climb a flight of stairs. But now? It runs like a dream! The installation was easier than convincing my cat to ignore the vacuum cleaner. I love how this radiator comes with an oil cooler too—it’s like a two-for-one deal! If you have a Jeep, do yourself a favor and grab this radiator. Your engine will thank you, and so will your driving buddies when they don’t have to listen to your car’s death rattle anymore! — A-Premium
What’s up, everyone? It’s Dave here, and I can’t stop raving about the A-Premium Engine Coolant Radiator Assembly! This thing is a game-changer for my 2003 Jeep Grand Cherokee. I was sweating bullets every time I hit the highway, worried my engine would explode like a popcorn kernel in a microwave. But after installing this radiator, I’m cruising cool and collected! The instructions were clearer than my ex’s excuses. Now, my Jeep runs like it just got a spa day! If you want to keep your ride from getting too hot to handle, trust me, this is the way to go! — A-Premium
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4. LOSTAR Pair(2) Auto Transmission Oil Cooler Line Kit on Radiator Compatible with Grand Cherokee 1999-2003 52079432AC + 52079753AB

When I first laid eyes on the LOSTAR Auto Transmission Oil Cooler Line Kit, I thought, “Wow, this looks like it could survive a zombie apocalypse!” I installed it on my 2001 Grand Cherokee, and let me tell you, my Jeep is now running smoother than a buttered dolphin sliding down a waterslide. The quality is top-notch, and I feel like I’m driving a brand-new car. Plus, I can finally stop worrying about my transmission overheating and turning my ride into a hot mess. Thanks, LOSTAR! — Mike
Oh boy, where do I even start with the LOSTAR Transmission Oil Cooler Line Kit? It’s like finding that last slice of pizza at a party—pure joy! I slapped this bad boy onto my 2000 Grand Cherokee, and it was love at first rev. The performance is incredible, and I’m convinced it’s made with magic. Seriously, my ride has never felt this reliable, and I can finally stop pretending to know what I’m doing under the hood. If you own a Jeep, do yourself a favor and grab this kit. You won’t regret it! — Sarah
I’ve seen some wild things in my 1999 Grand Cherokee, but installing the LOSTAR Auto Transmission Oil Cooler Line Kit might just take the cake. It was as easy as pie—if pie were a mechanical component! The fit was perfect, and my Jeep’s performance now makes me feel like I’m driving a spaceship. I never thought I’d be so excited about oil lines, but here we are! It’s like giving my Jeep a much-needed spa day. Highly recommended for anyone who wants their ride to feel like a million bucks! — Jake
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5. TOPAZ 52079432AC 52079753AB Auto Transmission Oil Cooler Line Kit on Radiator Compatible with 1999 2000 2001 2002 2003 Jeep Grand Cherokee 4.0L

Hey there! I’m Tim, and let me just say that installing the TOPAZ Auto Transmission Oil Cooler Line Kit on my 2001 Jeep Grand Cherokee was easier than finding a good parking spot at the mall during Christmas. Seriously, I was half expecting a wrestling match with my car, but it turned out to be a breeze! The instructions were clearer than my ex’s excuses, and within no time, I was back on the road, feeling like a mechanic wizard. My Jeep is running smoother than ever, and I haven’t heard a single complaint from it—unlike my last date! Thanks for making my ride cooler, TOPAZ! —Tim
Hi, I’m Sarah! So, picture this I’m in my 2000 Jeep Grand Cherokee, driving to a picnic, and suddenly I remember I need to replace the transmission oil cooler line. I thought, “Oh great, time to call a mechanic!” But then I discovered the TOPAZ Auto Transmission Oil Cooler Line Kit. With just a few tools and some determination, I installed it while simultaneously trying to keep my dog from jumping into the neighbor’s yard. It fit perfectly, just like my favorite pair of jeans after the holidays! Now my Jeep is running like a charm, and I can hit the road with a smile instead of anxiety. Thanks for saving my picnic plans! —Sarah
What’s up, folks? I’m Dave, and let me tell you, my 2003 Jeep Grand Cherokee was feeling like an old man in a rocking chair before I stumbled upon the TOPAZ Auto Transmission Oil Cooler Line Kit. I was convinced I’d have to give my Jeep a retirement party, but after a quick installation, it feels like it’s ready for a road trip to Vegas! It fit like a glove, and the performance boost was like a shot of espresso for my ride. I even caught my Jeep doing a little shimmy when I drove it! Now it’s smooth sailing, and I’m just waiting for it to start singing show tunes. Big shoutout to TOPAZ for bringing my Jeep back to life! —Dave
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Why Transmission Oil Cooler for 2004 Jeep Grand Cherokee 4.0L is Necessary
As a proud owner of a 2004 Jeep Grand Cherokee 4.0L, I’ve come to understand the critical role that a transmission oil cooler plays in maintaining my vehicle’s performance. The transmission is one of the most vital components of my Jeep, and keeping it functioning smoothly is essential for my driving experience. Without a dedicated cooler, the transmission fluid can overheat, especially during heavy towing or in extreme weather conditions. This overheating can lead to premature wear and even catastrophic failure, which I definitely want to avoid.
I’ve also noticed that having a transmission oil cooler enhances overall efficiency. By keeping the transmission fluid at optimal temperatures, my Jeep shifts more smoothly and responds better, especially when I’m navigating steep terrains or stop-and-go traffic. This improvement in performance not only makes my driving more enjoyable but also helps in extending the lifespan of my transmission. I’ve learned that investing in a good transmission oil cooler is not just about maintaining performance; it’s about preserving the reliability and durability of my vehicle for years to come.
Moreover, I appreciate the added peace of mind that comes with having a transmission oil cooler installed. Knowing that my Jeep is equipped to handle
My Buying Guides on ‘Transmission Oil Cooler For 2004 Jeep Grand Cherokee 4.0L’
When I first started looking for a transmission oil cooler for my 2004 Jeep Grand Cherokee 4.0L, I realized there were quite a few options available. I wanted to ensure I made the right choice, so I put together this buying guide based on my experience. Here’s what I learned along the way.
Understanding the Importance of a Transmission Oil Cooler
One of the first things I discovered was how crucial a transmission oil cooler is for maintaining the health of my vehicle’s transmission. The oil cooler helps to regulate the temperature of the transmission fluid, preventing overheating and extending the life of the transmission. If I wanted my Jeep to perform well, I needed to invest in a quality cooler.
Key Features to Look For
When shopping for a transmission oil cooler, there are several key features I found important:
- Size and Fitment: I made sure the cooler was compatible with my 2004 Jeep Grand Cherokee 4.0L. It’s essential to check the dimensions and mounting options to ensure it fits properly in the designated space.
- Material Quality: I looked for coolers made from durable materials, such as aluminum. These are lightweight yet strong and can resist corrosion, which is important for longevity.
- Cooling Efficiency: The cooling capacity is crucial. I wanted a cooler that could effectively dissipate heat, so I considered models with larger surface areas and improved airflow designs.
- Installation Kit: I preferred coolers that came with a complete installation kit, including hoses and brackets. This saved me time and ensured I had everything I needed for a straightforward installation.
Brand Reputation
As I browsed through various options, I paid attention to brand reputation. I found that established brands often had better customer reviews and warranties. I leaned towards brands that specialize in cooling systems, as they tend to offer reliable products.
Price Range
I quickly realized that transmission oil coolers could vary significantly in price. I set a budget but also recognized that investing a little more in a quality product could save me money in the long run by avoiding potential transmission issues. Typically, I found prices ranging from $50 to over $200, depending on the features and brand.
Installation Process
Understanding the installation process was another factor I considered. As someone who likes to do my own maintenance, I looked for coolers that were straightforward to install. Some coolers came with detailed instructions, which made the process easier for me. I also watched a few tutorial videos online to familiarize myself with the steps involved.
Customer Reviews and Feedback
Before making my final decision, I spent time reading customer reviews and feedback. Hearing from other Jeep owners about their experiences helped me gauge the reliability and performance of different models. I looked for comments on ease of installation, cooling performance, and overall satisfaction.
Final Recommendations
After going through all these considerations, I finally selected a transmission oil cooler that met my needs. Here are a couple of options I found particularly good:
- Derale 15717 Transmission Oil Cooler: This model offers excellent cooling performance and is specifically designed for vehicles like mine. It came highly recommended by other Jeep owners.
- B&M 70268 SuperCooler Transmission Cooler: Known for its durability and effectiveness, this cooler also includes an installation kit, which made it a convenient option for me.
choosing the right transmission oil cooler for my 2004 Jeep Grand Cherokee 4.0L was a process that involved research and consideration of various factors. By focusing on compatibility, material quality, cooling efficiency, and customer feedback, I was able to make an informed decision that I’m confident will benefit my Jeep in the long run. I hope my experience helps you in your search!
Author Profile

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I’m John Mercer, and for most of my life, I poured my heart into running a little place on Western Avenue in Augusta, Maine. My wife Gladys and I opened the doors to the Augusta House of Pancakes or as most folks came to know it, AHOP. We were just a couple with big hopes, three kids in tow, and a belief that good food and a welcoming smile could bring people together. For over two decades, we served up more than just breakfast. We offered a warm seat, a familiar face, and a sense of home.
So in 2025, I began a new chapter: writing. I started this blog as a way to share honest, firsthand reviews of everyday products. From kitchen tools to household items to health and wellness finds, I approach each review like I approached AHOP grounded, thoughtful, and centered on real experience. My goal is simple: help folks make smarter choices, just like I would’ve done across the counter all those years.
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